[OT] Intelectual Property Law [WAS: Re: what graphic card to buy?]
Hi folks, While fascinating, this discussion has wandered seriously Off Topic. It's no longer appropriate for debian-user, I think. I'm not a list-guru. Is there a debian list where it would be on-topic? If so, maybe we should take it there. Enjoy! Rick On Jul 18, 2012, at 6:46 AM, Gary Dale wrote: On 18/07/12 08:35 AM, Chris Bannister wrote: On Wed, Jul 18, 2012 at 12:21:03AM -0400, Gary Dale wrote: The original justification for patents was that the government would protect your invention for a short period if you told the world about how it works. I thought that too, but ... :( https://en.wikipedia.org/wiki/Statute_of_Monopolies_1623 Copyright and patents were never about promoting culture and innovations; from the very start they were legalized bribes to give the king some income and to let businesses get rid of competition. True about copyright but not about patents in North America. The American patent system was originally set up with good intentions on the part of at least some of its backers. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/5006be50.6060...@rogers.com -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/8d187b7e-3df2-446f-9695-6da643ddb...@pobox.com
Re: Tools in Debian to create whole disk image (multiple partitions)?
If all the empty space is filled with something redundant (like, zeroes?) then you can use almost any compress program (gzip comes to mind...) and it will all be compressed out. If the empty space is filled with random junk, it will depend on just how random the junk is. Does that help? Rick On Jul 22, 2012, at 11:05 AM, Andrei POPESCU wrote: On Du, 22 iul 12, 17:38:58, Sthu Deus wrote: Good time of the day, Andrei. You worte: Any suggestions? Why don't You copy Your installation w/ cp -a and reconfiguring then grub for the copy - to another disk (USB one?). OR I'm missing something? The Raspberry Pi can only boot from an SD card and the partition layout matters (e.g. /boot needs to be primary, FAT32, bootable and probably the first partition -- there is no bootloader like grub AFAICT). # parted -l Model: SD SD08G (sd/mmc) Disk /dev/mmcblk0: 7948MB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End SizeType File system Flags 1 1049kB 79,7MB 78,6MB primary fat32 boot 2 79,7MB 336MB 256MB primary linux-swap(v1) 3 336MB 7947MB 7612MB primary ext4 The ext4 partition only holds about 630 MiB of data (Debian base install + SSH server). I want to create an image that I can: * reuse myself later (just dd to some SD card) * distribute to possibly not very knowledgeable people Actually, I already have the image (with GNU ddrescue --sparse), but it's about 5 times bigger than expected, which makes it difficult to store and/or distribute :( Hope this explains, Andrei -- Offtopic discussions among Debian users and developers: http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/f1aabf71-4355-49db-9cfd-9dc093a90...@pobox.com
Re: Tools in Debian to create whole disk image (multiple partitions)?
On Jul 22, 2012, at 11:15 PM, Andrei POPESCU wrote: On Du, 22 iul 12, 19:28:35, Rick Thomas wrote: If all the empty space is filled with something redundant (like, zeroes?) then you can use almost any compress program (gzip comes to mind...) and it will all be compressed out. If the empty space is filled with random junk, it will depend on just how random the junk is. Does that help? A compressor of course helps reduce the size a *lot* (it's only 368 MiB gziped), but this introduces an additional step that I was trying to avoid. You can do it all in a shell one liner that does the compression on- the-fly. E.g. (assuming your SD card is on /dev/sdx, and you want to call your image raspbian.img): dd bs=1M if=/dev/sdx | gzip | dd bs=1M of=raspbian.img.gz If the swap partition has been used, it will have random garbage in it. You may want to zero it out and re-initialize it before you create the image. That will give you maximum compression. E.g. (again, assuming your SD card is on /dev/sdx, and the partition setup you gave in your previous email is still in effect): dd bs=1M if=/dev/zero of=/dev/sdx2 count=256 mkswap /dev/sdx2 Note, I don't have an Rpi and none of the above have been tested, so be careful. I'll look at Colenzilla, but just creating the live USB is a pain[1] and having to reboot each time I want to generate a new image is also not something I look forward to :( [1] http://clonezilla.org/liveusb.php I don't think clonezilla will help. The wiki page [2], which tells people how to use these images, pretty much assumes that they were created exactly as I have described above. [2] http://elinux.org/RPi_Easy_SD_Card_Setup Kind regards, Andrei -- Offtopic discussions among Debian users and developers: http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic HTH, Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/d56c8933-a67c-4000-9d97-fd18c38f8...@pobox.com
Re: Tools in Debian to create whole disk image (multiple partitions)?
On Jul 23, 2012, at 12:15 AM, Andrei POPESCU wrote: On Lu, 23 iul 12, 09:15:36, Andrei POPESCU wrote: A compressor of course helps reduce the size a *lot* (it's only 368 MiB gziped), but this introduces an additional step that I was trying to avoid. ... and a gzip/gunzip cycle makes the file non-sparse. I fixed it with cp --sparse always, but this is definitely a show stopper. Well... making it non-sparse is kinda the point. The parts that -- sparse removes are a subset of the parts that gzip will give maximum compression to. Again, when I read the wiki instructions for using the images, it pretty much assumes that the image was produced with dd and gzip as I have described. Kind regards, Andrei -- Offtopic discussions among Debian users and developers: http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic HTH Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/fadd3e24-6ad4-4f21-a113-32a23bd5f...@pobox.com
Re: Purge Empathy messes up apt
On Jul 25, 2012, at 5:53 PM, Bob Proulx wrote: Mark Allums wrote: Bob Proulx wrote: Mark Allums wrote: No, it's dependency hell. No. Dependency Hell[1] would require a rigidity of dependencies that are difficult to resolve. These resolve fine. And as is they are not causing any problems. It is just suggesting that if you don't want gnome installed then it would, if you told it to do so, remove the lint associated with it. Well, okay. But being require to manually mark 100+ packages in order to remove one seems needlessly tedious. Debian is a harsh mistress. What would you suggest as an alternative and how would it be implemented? Mark Allums wrote: I still think that kind of purge shouldn't be possible. a more granular approach would be appreciated. Rather than have the top level virtual packages (gnome, in this case) depend on over 60 second level packages, could the to- level recommend a small number (say less than a dozen) second level packages that each represent a major subsystem of the Gnome Desktop Environment. Each second level subsystem would then depend-on or recommend, in turn, a manageable number of actual packages -- perhaps with some overlap as necessary amongst the low-level libraries and leaf packages. This would allow a more modular approach and let people purge (or never install in the first place) those packages they don't need. If done carefully, it might also allow users to mix-and-match from amongst a collection of third level packages that provide a given functionality represented by a given second-level virtual package. Just a thought... And, no, I'm not volunteering to do a sample implementation -- I don't have the necessary Debian Packaging skills. I'm just putting the idea out for discussion. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/f834da1d-437b-4e95-ae46-d976afabd...@pobox.com
Re: installing Debian on an iMac
If this is a PowerPC iMac, you should be able to use the Debian PowerPC installer. If so, you can install Debian Squeeze with either http://cdimage.debian.org/cdimage/release/current/powerpc/iso-cd/debian-6.0.5-powerpc-CD-1.iso or http://cdimage.debian.org/cdimage/release/current/powerpc/iso-cd/debian-6.0.5-powerpc-netinst.iso Use the netinst if you expect to have broadband internet access during the installation process. If not, use the CD-1 image. Download your iso image of choice and burn it to a CD-R; put it in the CD drive of the iMac; boot while holding down the c key; and follow the instructions from there. It's probably a good idea to read the installation manual before you start. You can download it from http://www.debian.org/releases/stable/installmanual You will want the PowerPC version. You have a variety of language translations to choose from if you're not comfortable with English. Hope this helps... Rick On Jul 30, 2012, at 1:19 PM, David Harrison wrote: Hi, I thought I'd like to install Debian on my mac. Any hints or clues on where to start is appreciated. Cheers David -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/e597f0e7-5c5e-4516-9ad9-7d48e60f8...@charter.net -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/a1fa4ea1-3d84-42a0-b4d8-8e560889e...@pobox.com
Re: installing Debian on an iMac
Hi David, Lest we get flamed for top posting, I've rearranged the segments of this discussion to conform to the conventions of debian-users. Look for my reply at the bottom of this email... /-: On Jul 30, 2012, at 1:19 PM, David Harrison wrote: Hi, I thought I'd like to install Debian on my mac. Any hints or clues on where to start is appreciated. Cheers David On Jul 31, 2012, at 1:47 AM, Rick Thomas rbtho...@pobox.com wrote: If this is a PowerPC iMac, you should be able to use the Debian PowerPC installer. If so, you can install Debian Squeeze with either http://cdimage.debian.org/cdimage/release/current/powerpc/iso-cd/debian-6.0.5-powerpc-CD-1.iso or http://cdimage.debian.org/cdimage/release/current/powerpc/iso-cd/debian-6.0.5-powerpc-netinst.iso Use the netinst if you expect to have broadband internet access during the installation process. If not, use the CD-1 image. Download your iso image of choice and burn it to a CD-R; put it in the CD drive of the iMac; boot while holding down the c key; and follow the instructions from there. It's probably a good idea to read the installation manual before you start. You can download it from http://www.debian.org/releases/stable/installmanual You will want the PowerPC version. You have a variety of language translations to choose from if you're not comfortable with English. Hope this helps... Rick On Jul 31, 2012, at 7:27 AM, David Harrison wrote: Thanks for the help. It's a 2009 iMac so I'm not sure at this point where to look. So it's an Intel iMac. That means it boots with Apple's version of EFI firmware. Right now there's considerable discussion in debian- user mailing list on the subject of support for EFI booting in Wheezy -- mostly centered around what to do about the MS Secure Boot adjunct to EFI. I haven't seen much in the way of serious software development come out of it yet -- though I may be looking in the wrong discussion groups; I don't subscribe to debian-developers. Since I don't have an Intel Mac that I want to use for Linux (MacOS-X works well for my needs), I can't be much help. I can report that for the old PowerPC machines, Debian is great! Machines that barely crawl with ancient versions of MacOS-X get new life and vigor when installed with the latest Debian. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/23a6da46-6c68-4685-a4a2-9f6a90796...@pobox.com
Re: PowerPC install stuck at dmesg
Begin forwarded message: Resent-From: debian-user@lists.debian.org From: Michael Aldridge aldridge@gmail.com Date: August 14, 2012 6:05:29 PM PDT To: debian-user@lists.debian.org Subject: PowerPC install stuck at dmesg After deciding that the official OS was becoming too slow for this aging hardware, and Apple PowerBook G4 FW800 (not sure about the FW800, it could be the one immediately following that model), I decided to install debian and then a WM such as LXDE, to better use the hardware. I downloaded, burned, and verified the ppc netinst disk, and it does boot to a yaboot prompt. I then type 'install' and a white screen briefly flashes onto the screen. Then I see the output of dmesg as the machine partially boots, it makes it up to locating/defining the vmalloc and ioremap memory addresses, but then it appears to halt. I do not recieve any messages such as kernel panics, clock to NO Hz mode, or similar; if I leave the computer, it will remain in that state until I reboot it. My assumption is that this is not a console, just a dmesg readout, but I cannot figure out what the keybinding is on the mac to get to any other consoles. I should point out that the disk drive remains spun up, then spins down a few minutes later. I know how to use the text installer, if only I could get to it. What I have tried so far: reset the SMU reset the nvram reset the entire non-volatile memory use the video flag offered in yaboot connect an external monitor -- yields a grey screen with what looks like an open firmware readout, defining memory ranges Any help is greatly appreciated, it was suggested that I ask this issue on one of the IRC channels, but having never used those before, I figured I'd stick with the mailing list I knew. Hi Michael, First: try sending this to the debian-powerpc list. You may get more answers there... Second: I have a couple of G4 tower machines that work just fine, but unfortunately I don't have any powerbooks to try, so I can't be of direct help to you. However, the answers to a few questions may make it easier to diagnose your problem. 1) What netinst image did you download? Can you supply the URL and time/date of the .iso? One way to get this: Mount the CD (on /mnt, for example) and look in the file /mnt/.disk/info. It will give your enough to uniquely identify the version, time and date of creation of the .iso . 2) I doubt what you're seeing is just dmesg output. Certainly, on my tower machines, it's the real console output -- at least up to the stage you are talking about as it hangs. 3) To switch virtual consoles, try various combinations of fn alt and the F# keys for #=[1..4] . If that doesn't work, add the ctl, shift and cmd/apple keys into the mix in that order. 4) Try an external USB keyboard. Hope this helps! Rick
Re: PowerPC install stuck at dmesg
On Aug 15, 2012, at 8:25 AM, Michael Aldridge wrote: On Wed, Aug 15, 2012 at 2:06 AM, Rick Thomas rbtho...@pobox.com wrote: Resent-From: debian-user@lists.debian.org From: Michael Aldridge aldridge@gmail.com Date: August 14, 2012 6:05:29 PM PDT To: debian-user@lists.debian.org Subject: PowerPC install stuck at dmesg After deciding that the official OS was becoming too slow for this aging hardware, and Apple PowerBook G4 FW800 (not sure about the FW800, it could be the one immediately following that model), I decided to install debian and then a WM such as LXDE, to better use the hardware. I downloaded, burned, and verified the ppc netinst disk, and it does boot to a yaboot prompt. I then type 'install' and a white screen briefly flashes onto the screen. Then I see the output of dmesg as the machine partially boots, it makes it up to locating/defining the vmalloc and ioremap memory addresses, but then it appears to halt. I do not recieve any messages such as kernel panics, clock to NO Hz mode, or similar; if I leave the computer, it will remain in that state until I reboot it. My assumption is that this is not a console, just a dmesg readout, but I cannot figure out what the keybinding is on the mac to get to any other consoles. I should point out that the disk drive remains spun up, then spins down a few minutes later. I know how to use the text installer, if only I could get to it. What I have tried so far: reset the SMU reset the nvram reset the entire non-volatile memory use the video flag offered in yaboot connect an external monitor -- yields a grey screen with what looks like an open firmware readout, defining memory ranges Any help is greatly appreciated, it was suggested that I ask this issue on one of the IRC channels, but having never used those before, I figured I'd stick with the mailing list I knew. Hi Michael, First: try sending this to the debian-powerpc list. You may get more answers there... Second: I have a couple of G4 tower machines that work just fine, but unfortunately I don't have any powerbooks to try, so I can't be of direct help to you. However, the answers to a few questions may make it easier to diagnose your problem. 1) What netinst image did you download? Can you supply the URL and time/date of the .iso? One way to get this: Mount the CD (on /mnt, for example) and look in the file /mnt/.disk/info. It will give your enough to uniquely identify the version, time and date of creation of the .iso . 2) I doubt what you're seeing is just dmesg output. Certainly, on my tower machines, it's the real console output -- at least up to the stage you are talking about as it hangs. 3) To switch virtual consoles, try various combinations of fn alt and the F# keys for #=[1..4] . If that doesn't work, add the ctl, shift and cmd/apple keys into the mix in that order. 4) Try an external USB keyboard. Hope this helps! Rick The iso was downloaded from the debian.org mirror (as near as I can tell at least), and it is the small cd image available by clicking on the power-pc link below the heading of small cds. The iso was obtained and burned yesterday. I tried the key combinations you suggested, but none worked. I also tried with an external keyboard, but that seemed as though it did not register keypresses. any other ideas? I need to know *exactly* which iso you downloaded and burned. Please follow the instructions in part (1) of my reply. With the data from the .../.disk/info file on the CD I can download the exact same iso and test it on one of my G4 tower machines. That will let us know if it's specific to your laptop, or a generic problem with that particular iso. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/a617880c-0f4f-43ba-947b-1e990cba4...@pobox.com
Re: PowerPC install stuck at dmesg
On Aug 15, 2012, at 1:52 PM, Michael Aldridge wrote: okay, I understand now; although, there is a slight problem with doing that, I have no other linux machines handy with disk drives. Is there a way of doing that from the mac terminal? If you just put the CD in the CD drive with MacOS-X running, it should mount it. In the terminal window type df it will show (among other things) a volume mounted on /Volumes/Debian... Type cat /Volumes/Debian*/.disk/info (without the quotes) Report what you see. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/ee27110f-38df-4a1a-b8ce-ea60c8d9c...@pobox.com
Re: PowerPC install stuck at dmesg
On Aug 15, 2012, at 2:46 PM, Michael Aldridge wrote: On Wed, Aug 15, 2012 at 4:37 PM, Rick Thomas rbtho...@pobox.com wrote: On Aug 15, 2012, at 1:52 PM, Michael Aldridge wrote: okay, I understand now; although, there is a slight problem with doing that, I have no other linux machines handy with disk drives. Is there a way of doing that from the mac terminal? If you just put the CD in the CD drive with MacOS-X running, it should mount it. In the terminal window type df it will show (among other things) a volume mounted on /Volumes/Debian... Type cat /Volumes/Debian*/.disk/info (without the quotes) Report what you see. Rick Debian GNU/Linux 6.0.5 Squeeze- Official powerpc NETINST Binary - 1 20120512-20:49 OK. That says you are using the official stable/Squeeze netinst iso, available from http://cdimage.debian.org/cdimage/release/6.0.5/powerpc/iso-cd/debian-6.0.5-powerpc-netinst.iso This is the current version that has (presumably) been used by lots of folks since it was released last May. So it's unlikely that the problem is in the ISO itself. Have you checked that the CD is bit-for-bit the same as the iso? I haven't personally tried this, but there is a help topic in the MacOS-X disk utility called Verifying files are copied correctly from a disk image that seems to tell you how to use checksums to tell if a CD was burned properly. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/d09fda20-3d74-4488-a206-a37f959db...@pobox.com
Re: Logging ISP Download Speed.
On Aug 21, 2012, at 6:53 AM, Camaleón wrote: On Mon, 20 Aug 2012 13:37:43 -0700, Weaver wrote: I regularly log 40-47Kb/s on updates.. Cheers, And so do we all... The problem here is not the network bandwidth, it's that some parts of the update process have to download a lot of small files (a few KiB each). Each file involves a negotiation process that needs several round-trips and one or more file-directory lookups on the part of both the server and the client. The round- trips may be on the order of hundreds of milliseconds, so the time to retrieve a 4 KiB file can be on the order of a half second or more. That translates to 8KiB/s for that particular file. Sad, but it's a fact of life on a global-scale packet switched network. Look at the reported speed when downloading a large package. Here you have the opportunity to take full advantage of a big pipe and large windows on each end to fill the pipe. Your limiting rate here is more likely to be the ability of the server to get your file off its disk at the same time as it's getting other files for other clients off the same disk. For example, I find that getting security updates is much slower (factor of 4 or 5, often) than getting new packages from one of the big mirrors. The security.debian.org server seems to be a bottleneck. There's a design trade-off here -- between getting security stuff posted and available quickly (in favor of a single server or at most a small number of servers), and getting it out at high bandwidth (in favor of mirroring it to lots of servers with the attendant polling delays) the Debian folks have opted to get security stuff available quickly but at a lower bandwidth, and regular package updates available with some delay but at higher bandwidth. Hope this helps to understand what you're seeing. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/7ab3d910-6448-4533-b9fd-a66cc57cb...@pobox.com
Re: IA64 or AMD64?
Stan, Calling people names is no way to encourage them to use free software. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/bb13d31f-28c7-47b1-b34c-3c121e74f...@pobox.com
Re: ntpd crashes.
On Sep 22, 2012, at 6:51 AM, Camaleón wrote: Anyway, no NTP daemon should crash because of skewed time; one thing is that it refushes to sync (which can be fine, and should log this fact so the admin can make the proper measures) but a different thing is completely killing the service. Hi Camaleón! A bit of NTP history: That issue has been argued on the NTP developer mailing lists. Crashing the daemon is Dave Mills' way of telling the admin that something is badly broken here and needs to be fixed. Several developers (myself included) disagreed with him at the time, but he was adamant on the subject. So that's the way it is. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/d8b34071-ed17-429b-a6e9-0f602e37f...@pobox.com
Re: ntpd crashes.
On Sep 23, 2012, at 6:13 AM, David L. Craig wrote: On 12Sep23:0208-0700, Rick Thomas wrote: On Sep 22, 2012, at 6:51 AM, Camaleón wrote: Anyway, no NTP daemon should crash because of skewed time; one thing is that it refushes to sync (which can be fine, and should log this fact so the admin can make the proper measures) but a different thing is completely killing the service. That issue has been argued on the NTP developer mailing lists. Crashing the daemon is Dave Mills' way of telling the admin that something is badly broken here and needs to be fixed. Several developers (myself included) disagreed with him at the time, but he was adamant on the subject. So that's the way it is. There must be at least one patch available and maintained that can be applied to modify the official distribution's behavior if multiple developers disagree with this behavior. Where should one look? The final outcome was that -- some years later -- the -g option was added to ntpd. Quoting from man 8 ntpd: -g Normally, ntpd exits with a message to the system log if the offset exceeds the panic threshold, which is 1000 s by default. This option allows the time to be set to any value without restriction; however, this can happen only once. If the threshold is exceeded after that, ntpd will exit with a message to the system log. This option can be used with the -q and -x options. This was added to allow closing out support for ntpdate, but it also satisfied most of the developers who felt that crashing was an ungraceful way of delivering a message. It works for me. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/d236f7c7-3f91-403b-a854-c70f22c7e...@pobox.com
Re: apache2's handling of IP version 6
On Oct 3, 2012, at 8:40 PM, Satoru Otsubo wrote: But the phenomena are same, that is, When booting my PC, apache2 failed to start. And when I executed the following: # /etc/init.d/apache2 restart apache2 started successfully with the dual stack. Why this phenomena happens ? Is the apache2 daemon starting before the ipv6 part of the network configuration is completely up? Try putting ipv6 in your /etc/modules file... Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/edf66603-9c79-4cfd-bd22-8379bbe5e...@pobox.com
Re: Swap space not used
Another use for a large swap partition is if you want to put /tmp into tmpfs. Whether doing so is a good thing(TM) is a religious debate that I don't want to stir up here. But there are people who do it, and for them a large swap partition can be useful. Rick PS: We haven't heard back from the OP yet. I'm with the folks who think he probably forgot to put it in fstab, but we won't know until he replies. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/39e8e5797ec4782d849f00461fd3f...@pobox.com
Re: Swap space not used
On Fri, 4 May 2012 02:40:16 +0800 (WST), Bret Busby wrote: free: :~# free total used free sharedbuffers cached Mem: 80599647746808 313156 0 54708 1352976 -/+ buffers/cache:63391241720840 Swap: 42860340 66296 42794044 A snaphot of the header of top gives :~# top top - 02:31:37 up 3 days, 44 min, 3 users, load average: 0.09, 0.17, 0.16 Tasks: 205 total, 2 running, 203 sleeping, 0 stopped, 0 zombie Cpu(s): 24.3%us, 2.6%sy, 0.0%ni, 73.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 8059964k total, 7722984k used, 336980k free,55484k buffers Swap: 42860340k total,66296k used, 42794044k free, 1353544k cached Well. According to the above: You do, indeed, have 40GB of swap configured. It appears to be using 66MB of that swap. So swapping is not disabled, and you have plenty of swap space for any normal use. The remaining question is, why do you periodically run out of memory and crash? Or, put another way, what abnormal use is occurring to cause your crashes? Are there any indications in syslog of what may be going on immediately before the crash? Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/6532d84107430b080540568c0c5f0...@pobox.com
Re: Password salt
On Fri, 08 Jun 2012 12:05:56 +0300, Lars Noodén wrote: On 6/8/12 12:02 PM, Alberto Fuentes wrote: On 06/08/2012 10:57 AM, Lars Noodén wrote: The hashed password + salt is stored in /etc/shadow. Where is the actual password salt for Debian stored? Yes, I understand that the salt is different and random for each password, but how is it stored so that the hash can be used for authentication? Sorry for the dumb questions. Regards, /Lars The salt is stored in the password entry in the shadow file along with the result of hash(salt+actualTextPassword). The fact that the salt is public (quotes because /etc/shadow is readable only by root in most systems) does not detract from its usefulness. Its purpose is to multiply the necessary size of the reverse-look-up table needed in a time-vs-space tradeoff brute-force attack. It's all explained in this wikipedia article. http://en.wikipedia.org/wiki/Salt_(cryptography) Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/b7bfe0e229b6aeef169e2e4b1de52...@pobox.com
what causes slogin -X to not generate a $DISPLAY variable on the server?
Recently, when I do slogin -X server (for one particular server, not all of them) the resulting session can't run any X11 utilities (e.g. xterm) because there is no DISPLAY variable in the environment. It used to work. I don't know what changed for sure. Does anybody know what can cause this? Thanks! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4fd1da63.1030...@pobox.com
Re: what causes slogin -X to not generate a $DISPLAY variable on the server?
On Jun 8, 2012, at 10:06 AM, Camaleón wrote: On Fri, 08 Jun 2012 03:56:35 -0700, Rick Thomas wrote: Recently, when I do slogin -X server (for one particular server, not all of them) the resulting session can't run any X11 utilities (e.g. xterm) because there is no DISPLAY variable in the environment. It used to work. I don't know what changed for sure. Does anybody know what can cause this? Try to run slogin with extra verbosity on, e.g.: slogin -X user@server -vvv Thanks for the suggestion. The client is a Mac G5 running OS-X Leopard. The server is a Mac G4 running Debian Squeeze. It's not specific to this particular client. I get the same problem from a client running Debian Squeeze. Here's the output. I see it requesting X11 forwarding (near the end) but I don't see anything specifically saying it was granted. Nor do I see it being specifically refused. Fascinating... Rick PS: I recently ran aptitude update aptitude upgrade on this server and it picked up a couple of months worth of updates. I don't *think* I had this problem before then... bigal:~ rbthomas$ slogin -X -vvv macs OpenSSH_5.2p1, OpenSSL 0.9.7l 28 Sep 2006 debug1: Reading configuration data /Users/rbthomas/.ssh/config debug1: Applying options for * debug1: Reading configuration data /etc/ssh_config debug2: ssh_connect: needpriv 0 debug1: Connecting to macs [192.168.1.119] port 22. debug1: Connection established. debug1: identity file /Users/rbthomas/.ssh/identity type -1 debug3: Not a RSA1 key file /Users/rbthomas/.ssh/id_rsa. debug2: key_type_from_name: unknown key type '-BEGIN' debug3: key_read: missing keytype debug2: key_type_from_name: unknown key type 'Proc-Type:' debug3: key_read: missing keytype debug2: key_type_from_name: unknown key type 'DEK-Info:' debug3: key_read: missing keytype debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug3: key_read: missing whitespace debug2: key_type_from_name: unknown key type '-END' debug3: key_read: missing keytype debug1: identity file /Users/rbthomas/.ssh/id_rsa type 1 debug1: identity file /Users/rbthomas/.ssh/id_dsa type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.5p1 Debian-6+squeeze2 debug1: match: OpenSSH_5.5p1 Debian-6+squeeze2 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.2 debug2: fd 3 setting O_NONBLOCK debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: diffie-hellman-group-exchange- sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14- sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256- ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128- cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-...@lysator.liu.se debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256- ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128- cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-...@lysator.liu.se debug2: kex_parse_kexinit: hmac-md5,hmac- sha1,umac...@openssh.com,hmac-ripemd160,hmac- ripemd...@openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac- sha1,umac...@openssh.com,hmac-ripemd160,hmac- ripemd...@openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,z...@openssh.com,zlib debug2: kex_parse_kexinit: none,z...@openssh.com,zlib debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: kex_parse_kexinit: diffie-hellman-group-exchange- sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14- sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256- ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128- cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-...@lysator.liu.se debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256- ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128- cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-...@lysator.liu.se debug2: kex_parse_kexinit: hmac-md5,hmac- sha1,umac...@openssh.com,hmac-ripemd160,hmac- ripemd...@openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac- sha1,umac...@openssh.com,hmac-ripemd160,hmac- ripemd...@openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,z...@openssh.com debug2: kex_parse_kexinit: none,z...@openssh.com debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2
Re: what causes slogin -X to not generate a $DISPLAY variable on the server?
On Jun 8, 2012, at 11:48 AM, Rick Thomas wrote: Here's the output. I see it requesting X11 forwarding (near the end) but I don't see anything specifically saying it was granted. Nor do I see it being specifically refused. Fascinating... FWIW, I tried the same 'slogin -vvv -X' to a server for which it works properly (I get a valid $DISPLAY on that server) and the relevant portions of the output were identical between the two servers. Curiouser and curiouser! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/130204e6-555b-4703-a30d-80ed11840...@pobox.com
Re: /tmp is too small
On Jun 7, 2012, at 6:48 AM, Hendrik Boom wrote: Or alternatively, how can I enlarge the tmpfs? I need it enlarged from anout 200M to about 2G for this week's project. Yes, that's a lot bigger than my RAM. Increase your swap to 4GB -- even if you plan never to swap. The space will be available to act as backing store for tmpfs. I *think* the algorithm for setting the size of tmpfs is one half of RAM + SWAP. Hence the 4GB. If that doesn't work, you can set the size explicitly in /etc/fstab. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/ac4f5050-fe33-4878-8821-dfaeaad39...@pobox.com
Re: what causes slogin -X to not generate a $DISPLAY variable on the server?
On Jun 9, 2012, at 3:31 AM, Camaleón wrote: Given that you are login on your own computers you can try with -Y flag (untrusted X11 forwarding) and see how it goes. Another test you can run is by creating a new user and launching slogin -X -vvv macs xterm session from there. Thanks for the help... Neither the -Y option, nor trying a brand-new user made any difference. Any more suggestions? I'm still puzzled by this one! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/b8a05aa3-5828-4167-b2ed-b5b9b8b74...@pobox.com
Re: what causes slogin -X to not generate a $DISPLAY variable on the server?
On Jun 12, 2012, at 1:43 PM, Camaleón wrote: On Tue, 12 Jun 2012 01:03:24 -0700, Rick Thomas wrote: On Jun 9, 2012, at 3:31 AM, Camaleón wrote: Given that you are login on your own computers you can try with -Y flag (untrusted X11 forwarding) and see how it goes. Another test you can run is by creating a new user and launching slogin -X -vvv macs xterm session from there. Thanks for the help... Neither the -Y option, nor trying a brand-new user made any difference. And with both options, are you still getting the same log entries? Any more suggestions? I'm still puzzled by this one! Yup, it's not normal that it works from some clients but not for others. Lets see, server's the same, is client what changes... mmm, you can compare the client openssh versions and look for any difference here and you can also try to run sshd (the server part) with debug mode turned on, there can be also something of interest here... Besides... once you login, can you manually set the display environment variable fine and run xterm or it also fails? I think I haven't been clear. First, some definitions: client = the machine I type slogin -X server on. sever = the machine running sshd to which the above slogin connects. Server is running Debian Squeeze powerpc (there are actually two such machines, but the results are the same for both). Client is (actually a number of machines) running MacOS-X Leopard, MacOS-X Snow-Leopard, Debian Squeeze-i386 and Deebian Squeeze armel. Prior to running the recent full-upgrade on the servers, I was able to do slogin -X from any and all of the clients and get an X session with a defined DISPLAY variable in the env (on the servers). I could, for example, start up an xterm on the servers from such a session. After running full-upgrade on the servers (they had been out of action for a couple of months, so it was a fairly large upgrade -- which makes diagnosing the problem harder...) when I did slogin -X from any of the clients, the resulting session had no DISPLAY variable in its env. Moreover, defining DISPLAY=localhost:10.0 ; export DISPLAY did not help. I get xterm Xt error: Can't open display: localhost: 10.0 error-message. I tried creating a new account on one of the servers, with a bare- bones home directory (nothing X related in it) and doing slogin -X newuser@server didn't change anything. Same with slogin -Y server. The exact output of slogin -vvv -X server varies from one client to another, but they all mac clients have some variation on debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Requesting no-more-sessi...@openssh.com debug1: Entering interactive session. debug2: callback start debug2: x11_get_proto: /usr/X11R6/bin/xauth -f /tmp/ssh-6LuZsOhrh3/ xauthfile generate /tmp/launch-Gk6NLm/:0 MIT-MAGIC-COOKIE-1 untrusted timeout 1200 2/dev/null debug2: x11_get_proto: /usr/X11R6/bin/xauth -f /tmp/ssh-6LuZsOhrh3/ xauthfile list /tmp/launch-Gk6NLm/:0 2/dev/null debug1: Requesting X11 forwarding with authentication spoofing. debug2: channel 0: request x11-req confirm 0 debug2: client_session2_setup: id 0 debug2: channel 0: request pty-req confirm 1 debug2: channel 0: request shell confirm 1 debug2: fd 3 setting TCP_NODELAY debug2: callback done debug2: channel 0: open confirm rwindow 0 rmax 32768 debug2: channel_input_status_confirm: type 99 id 0 debug2: PTY allocation request accepted on channel 0 debug2: channel 0: rcvd adjust 2097152 debug2: channel_input_status_confirm: type 99 id 0 debug2: shell request accepted on channel 0 and all Debian clients have some variation on: debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Requesting no-more-sessi...@openssh.com debug1: Entering interactive session. debug2: callback start debug2: x11_get_proto: /usr/bin/xauth list unix:10.0 2/dev/null debug1: Requesting X11 forwarding with authentication spoofing. debug2: channel 0: request x11-req confirm 0 debug2: client_session2_setup: id 0 debug2: channel 0: request pty-req confirm 1 debug1: Sending environment. debug3: Ignored env TERM debug3: Ignored env SHELL debug3: Ignored env XDG_SESSION_COOKIE debug3: Ignored env SSH_CLIENT debug3: Ignored env SSH_TTY debug3: Ignored env USER debug3: Ignored env LS_COLORS debug3: Ignored env MAIL debug3: Ignored env PATH debug3: Ignored env PWD debug1: Sending env LANG = C debug2: channel 0: request env confirm 0 debug3: Ignored env SHLVL debug3: Ignored env HOME debug3: Ignored env LOGNAME debug3: Ignored env SSH_CONNECTION debug3: Ignored env DISPLAY debug3: Ignored env _ debug2: channel 0: request shell confirm 1 debug2: fd 3 setting TCP_NODELAY debug2: callback done debug2: channel 0: open confirm rwindow 0 rmax 32768 debug2: channel_input_status_confirm: type 99 id 0 debug2: PTY allocation request accepted on channel 0 debug2: channel 0: rcvd adjust
Re: what causes slogin -X to not generate a $DISPLAY variable on the server?
On Jun 12, 2012, at 1:43 PM, Camaleón wrote: ... mmm, you can compare the ... openssh versions That got me thinking... Looking at a third server (the same i386 Debian Squeeze machine I was using as a client in the previous reply) I *can* slogin -X and get an X session. On both the successful server and the failing server, the version of openssh-server is 1:5.5p1-6+squeeze2. So that's no help, either. Very curious... Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1e79e52e-877c-414e-a4a5-a6cc07226...@pobox.com
Re: what causes slogin -X to not generate a $DISPLAY variable on the server?
On Jun 12, 2012, at 9:44 PM, Erwan David wrote: On 13/06/12 04:12, Rick Thomas wrote: On Jun 12, 2012, at 1:43 PM, Camaleón wrote: ... mmm, you can compare the ... openssh versions That got me thinking... Looking at a third server (the same i386 Debian Squeeze machine I was using as a client in the previous reply) I *can* slogin -X and get an X session. On both the successful server and the failing server, the version of openssh-server is 1:5.5p1-6+squeeze2. So that's no help, either. Very curious... Rick Is xauth installed on the server ? Yes. As noted in the previous message -- everything worked fine until the upgrade. The versions of xauth on the working server and the non-working ones are identical: 1:1.0.4-1 Are there any other packages I should check? I don't know much about the guts of X11, so any suggestions will be welcome! You might also launch the ssh server with verbose log option to get its version of the transaction. That's the next step. Thanks for the help! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/30efd288-eddf-4d6d-9d12-8578c1f65...@pobox.com
Re: what causes slogin -X to not generate a $DISPLAY variable on the server?
On Jun 13, 2012, at 7:23 AM, Camaleón wrote: Also, while searching for more information on this issue at Google I've found many posts¹, articles and blogs² pointing to a problem with X forwarding and ipv6 though I'm not sure this is going to be the case for this but it can be something to consider :-? ¹http://ubuntuforums.org/showthread.php?t=1649657 ²http://hang4r.blogspot.com.es/2011/08/enabling-remote-x11-forwarding-over-ssh.html Which says that to overcome a bug that gets tickled when you disable IPv6, you have to add AddressFamily inet to the server's /etc/ssh/sshd_config file. Camaleón, you are awesome! (I'll bet you knew that... -: ) I *never* would have guessed that disabling IPv6 was causing my problem. And if I did, I *really never* would have guessed that work- around! For reasons that need not concern us here, I need to disable IPv6 on the portion of my lan containing the two servers in question. I never guessed it would cause problems for X11 over ssh. I will file a bug report ASAP against openssh-server. I've spent over a week tracking this one down. And the awesome part is that you, Camaleón, didn't know that i had disabled IPv6, but you *still* found the necessary magic. You are a wonderful asset to the Debian-user community. We are privileged to have you with us! Thank you! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/69beecb8-1ba9-4dee-82ad-8652c4485...@pobox.com
Re: what causes slogin -X to not generate a $DISPLAY variable on the server?
On Jun 13, 2012, at 11:24 AM, Rick Thomas wrote: I will file a bug report ASAP against openssh-server. It turns out this is bug #422327, which dates all the way back to 2007, and nothing has been done about it. The bug report even suggested a patch (well, not exactly a patch with actual code changes, but at least a design that could be used to generate code changes) Sigh! If I get some time, I'll see if I can work up a patch... Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/0cd44ce5-ba6a-4f22-9684-c68721fdc...@pobox.com
[SOLVED] Re: what causes slogin -X to not generate a $DISPLAY variable on the server?
On Jun 13, 2012, at 11:24 AM, Rick Thomas wrote: I will file a bug report ASAP against openssh-server. It turns out this is bug #422327, which dates all the way back to 2007, and nothing has been done about it. The bug report even suggested a patch (well, not exactly a patch with actual code changes, but at least a design that could be used to generate code changes) Sigh! If I get some time, I'll see if I can work up a patch... Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/8d241824-75a6-4a2c-8770-eeaa16239...@pobox.com
Re: netinst on old dell hardware
On Jun 20, 2012, at 1:07 PM, Paul E Condon wrote: On 20120620_121804, Teemu Likonen wrote: Paul E. Condon [2012-06-20 02:55:41 -0600] wrote: On 20120620_081652, didier gaumet wrote: Your CD, being from the lenny=stable era, probably attempts to access stable release but it does not exists on an archive repository. Replacing stable by lenny could do the trick This is what must be happening. And I have no way to edit an iso image to do the replacement, so I can't use the archive to get a working debian installation on the box and then dist-upgrade to something more modern. Doesn't the expert install method allow editing sources.list? (I'm not sure.) It allows selecting a mirror from a long list of existing mirrors and typing in the name of an unlisted mirror, but not editing a line in sources.list format. In this case the built in name on the CD is surely 'stable' and *not* 'lenny', as support or named releases was not yet fully implemented back then. Didier reminded me of that. I think this fact pretty is a show stopper for what I was hoping to do. I am rethinking my goals and objectives today. You can always use the Alt-F2 console to edit (I think nano is available) the sources.list file yourself after the choose-mirror step. You may have to do it in /target/etc/apt as well as /etc/apt . I haven't tried it myself, so let us know how/whether it works for you. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/a6237fbc-e47b-42ea-9aa7-deb431b37...@pobox.com
Re: Very slow network with certain APs -- ipv6 problem?
On Jul 4, 2012, at 3:09 PM, Paul Zimmerman wrote: Camaleón noela...@gmail.com wrote: You mean you're still using ipv4 with no ipv6 support from the OS at all? I am using an up-to-date install of Squeeze. There were several network related updates when IPv6 was supposed to be activated. So I presume this was an activation for Debian. Since then, certain wireless APs have not worked properly. It claims to connect and get an IP address, but there is almost no actual traffic. It can take 5 or 10 minutes to get a simple page with mostly text and very few graphics. Yet, these same IPs are as fast as ever when you connect with a Windows machine. Which leads me to suspect that Windows automatically detects what the AP is using and adjusts, while Linux does not. There is a problem that sometimes occurs: If the AP does not properly route IPv6 traffic, but does mistakenly advertise an IPv6 prefix, and some website has records (IPv6 addresses) in DNS, your browser may try to connect to the IPv6 address, causing a long time-out. Usually, it will give up and re-try the connection with IPv4, causing bursty behavior with successful IPv4 traffic interspersed with long timeouts trying IPv6. You can test for that by temporarily disabling IPv6 entirely on your client machine as described in the website Camaleón pointed to. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/474a3c2c-f46c-4086-ab38-4a14b1329...@pobox.com
Proposal for stage-1 secure boot Re: [POSTPONED] Re: installation with UEFI
The fundamental problem we must solve is allowing the *user* to securely choose which OS she wants to install. Whether that OS follows thru and verifies all its parts is between the user and the person or group who provided the OS (could be the user, herself, of course!) We need a stage-1 boot loader, signed by somebody trusted (FSF? SFLC?) with a key that will be recognized by the SecureBoot BIOS. This is an un-changable binary blob, so it can't be GPL (is this a problem?) but at least we can publish the source code, and anybody who wants to can verify that the blob is the result of compiling that source code. Whoever did the original signing can publish signed updated blobs in the future if changes become necessary or desirable. Hopefully, the limited functionality in the original version will be enough to get the job done so changes will be infrequent to non- existent. The stage-1 boot loader blob has the following functionality: 1) It can ask the user to enter a password, which it hashes into a the private half of a cryptographic signing key. Without the user's password, the private half of the key is unknowable. The public half of the key is, of course, freely available and should be cached in some kind of write-once/read-many memory if such is available (You can buy USB keys with a physical write-enable switch. Would something like that be good for this application? Does the UEFI API have a way of stashing such a thing along with its keys?) 2) It can keep a cache of (location, description, signature) triplets for stage-2 bootloaders in some place where it can be retrieved without further user intervention. Would the boot block be a good place? The cache will be publicly readable -- and writable -- so it needs to be signed by the private part of the user's key, and verifiable with the public part of that key. 3) When it's loaded by the UEFI bios, it reads the cache and verifies the signature using the public part of the user's key. Based on keyboard input (or lack thereof, after a short timeout) it picks one entry from the cache and loads that stage-2 boot loader, verifies its signature, and pass control to it. 4) Other things the user can do if she has access to the keyboard before the time-out expires: a) Request a menu of, and choose one of, the available stage-2 boot loaders, taken from the description part of the cached triplets. b) Designate one from the above menu as the default for future boots if the timeout expires. c) Request to add a new entry to the stage-2 boot loaders cache, providing the location and description. It then requests and verifies the user's password and uses it to compute the signature of the new stage-2, then sign and write the modified cache. d) Request deletion of a cache entry. It then requests and verifies the user's password and uses it to sign and write the modified cache. e) Request to change her password, providing the old password as verification of her right to do so. f) Request to chain-load another stage-1 boot loader from removable media. This program would need to be signed with one of the keys known to the SecureBoot BIOS, or, if not, have explicit permission to be loaded from the user at the keyboard. This is the rat-hole we provide for installation of new OS's. Would this work? What have I missed? -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/c4ae1b33-4f28-4ac9-856b-4c82171e6...@pobox.com
Re: partitions - primary vs logical and bootability
On Nov 10, 2012, at 2:09 PM, Charles Blair wrote: I am trying to set up a dual-boot windows 7 / wheezy. The installer shows me 3 primary ntfs partitions, presumably for windows7. I have been able to resize to create freespace. As I understand it, / must be bootable, which seems to mean it must be a primary partition. However, when I do that, the installer shows the remaining free space as unusable, and won't let me create logical partitions for swap, /usr, etc. I'm sure I'm overlooking something basic. Thanks for your patient help. You only get 4 primary partitions. If you want any Logical partitions, you have to have to make one of the primary partitions an Extended partition, and put your Logical partitions inside that Extended partition. So, in effect, your three Primary NTFS partitions have used up all the primary partitions you can have if you want to use Logical partitions. As I see it, you have two options: 1) Make your Linux partition an everything partition (root, boot, usr, var, home, and so on...), in Primary slot #4. 2) Backup one of your NTFS partitions (say, #3); put your Linux Root in the now-free Primary partition (#3) resized as necessary; move the remaining two NTFS Primary partitions around (if necessary) so you can consolidate all your free-space into one Extended partition (#4); then create a Logical partition (#5), inside the Extended (free-space) partition, to hold the backed-up contents of the old #3; and one or more Logical partitions (#6, #7, #8) to hold the rest of your Linux stuff. Or... You could leave your old Windows disk alone, buy a new disk and put Linux on it. Then you can switch between booting Linux and Windows by using the boot disk chooser of the BIOS. There was a recent thread in Debian-Users on this topic -- I recommend you read it before you start. For more on the topic of Logical/Extended/Primary partitions, see WikiPedia at http://en.wikipedia.org/wiki/Disk_partitioning or http://en.wikipedia.org/wiki/Master_boot_record and the man page for fdisk (it may be called fdisk.distrib if you have gnu-fdisk installed) which is available on the web at (among other places) http://linux.die.net/man/8/fdisk . Enjoy! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/57b29786-4867-439a-b67a-9b923433c...@pobox.com
Re: partitions - primary vs logical and bootability
On Nov 10, 2012, at 9:49 PM, Charles Blair wrote: Thank you very much for your reply. I think I will post a restatement of the question. I would have thought that a dual boot of windows 7 and debian would be a common enough problem that there should be something about it somewhere, perhaps in the installer instructions. 1) Make your Linux partition an everything partition (root, boot, usr, var, home, and so on...), in Primary slot #4. Just to get more detail on how this would work: I would create a primary partition using all the available free space, described as / and bootable? This would work even though there isn't swap space? I must admit I'm afraid to tinker with the windows section, so that your other idea of backing up one of the windows partitions (don't even know how I would do that) and doing things so I have only two primary winows partitions and have one primary debian partiton for / (bootable) and one extended partion for swap, /home, etc. Actually I must be misunderstanding your idea, since I think swap is somehow incompatible type from /, /home, etc. If you've got enough RAM, you don't absolutely have to have a swap partition. If you're short on RAM you can make a swap file in the root directory and use it. E.g.: dd if=/dev/zero of=/swap bs=1M count=512 mkswap /swap swapon /swap To back up the Windows partition, you probably want an external (e.g. USB) hard disk to put the backup image onto. Take a look at the clonezilla utility as described at http://www.linuxjournal.com/content/clonezilla-live for ideas. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/28ccce93-8610-4b98-a938-1a6c56c4a...@pobox.com
Re: partitions - primary vs logical and bootability
Hi Charles, On Nov 11, 2012, at 4:56 AM, Charles Blair wrote: Thanks again. I wish these issues had been addressed either by the installer itself or by the installation instructions. Tnere must be many other unsophisticated users that have encountered this problem. You're welcome, of course. That's what these lists are for. If you succeed in your experiments, one thing you can do to help the next person is: write-up your experiences. If you follow the basic format of the installation manual, I think there might be somebody here who would be willing to help you to get it into shape to include as an appendix to the manual. A good place to start is the Debian wiki at http://wiki.debian.org/ If you decide to start a wiki page, let us know the URL so we can contribute our thoughts too. That's what open source is all about, after all -- share and share alike. Share the effort; share the benefits. Enjoy! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/b2e189fe-f58c-4849-9e07-eddc86f33...@pobox.com
Installing Lenny on PowerMac?
I have a temporary need to install Lenny on a PowerMac G4 so I can run some tests on a fresh installation for a user who is unable (for various reasons) to upgrade to Squeeze at this time. When I run the netinst installer CD all seems well until it wants to setup sources.list. Then it dies claiming to be unable to determine code-name for release. (I don't remember the exact wording of the error message, but the intent is clear.) Is there a work-around for this that would allow me to do my testing? Would I have better luck with a DVD, where I wouldn't need to get anything from the network mirrors until after the installation is complete? Thanks! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/49400222-4490-45b2-ad83-382bb0d5b...@pobox.com
Re: need lenny.
On Dec 8, 2012, at 5:14 AM, Andrei POPESCU wrote: On Sb, 08 dec 12, 12:46:23, Mauro wrote: W: Failed to fetch http://archive.debian.org/debian/dists/lenny/main/binary-amd64/Packages 302 Moved [IP: 193.62.202.28 80] Hmm, your apt is trying to download the uncompressed Packages file, which is actually not available (anymore?) -- even though mentioned in the Release file -- and doesn't fall back to the compressed Packages files. You should check your apt configurations for any overrides. Kind regards, Andrei -- Offtopic discussions among Debian users and developers: http://lists.alioth.debian.org/mailman/listinfo/d-community-offtopic Have you tried aptitude instead of apt-get? Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/6b39640c-2875-457c-82f7-44422c6a2...@pobox.com
Re: need lenny.
On Dec 8, 2012, at 7:32 AM, Mauro wrote: Have you tried aptitude instead of apt-get? yes, same error. Just a guess, but take a look at backports and see if you can install a more modern version of apt or aptitude. FWIW My lenny box has aptitude version 0.4.11.11-1~lenny2. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/5f639e2d-1444-4b10-a0bb-6ceb2ace4...@pobox.com
Re: need lenny.
On Dec 8, 2012, at 9:00 AM, Mauro wrote: On 8 December 2012 17:37, Rick Thomas rbtho...@pobox.com wrote: On Dec 8, 2012, at 7:32 AM, Mauro wrote: Have you tried aptitude instead of apt-get? yes, same error. Just a guess, but take a look at backports and see if you can install a more modern version of apt or aptitude. FWIW My lenny box has aptitude version 0.4.11.11-1~lenny2. now works, perhaps a problem of my dns provider. Great! I wish we knew why :-/ Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/c1623481-236f-4430-b108-affeec6ba...@pobox.com
Anybody have a chromebook? Can it run Debian?
I was googling for an inexpensive laptop for a friend and came across the chromebook C710 from Acer: http://www.staples.com/Acer-C710-2847-116-Chromebook/product_125265 or http://www.newegg.com/Product/Product.aspx?Item=N82E16834215914 • Intel Celeron 847 1.1GHz • 2GB Memory (expandable to 4GB) 320GB HDD (5400RPM) • 11.6 HD Widescreen CineCrystal™ LED-backlit LCD • Wi-fi 802.11a/b/g/n • Google Chome OS Price $200. Can't beat the price! Does anybody have any experience with this device? Can I put Debian on it? How about other flavors of Linux? Failing that, what do you think of Chrome-OS? Can it run Libre Office? Thanks! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4678b2f4-32b5-4ecc-9a4e-06befe045...@pobox.com
Re: Anybody have a chromebook? Can it run Debian?
Thanks! For myself those look great. But she is *extremely* price conscious. Rick On Feb 2, 2013, at 3:28 AM, Weaver wrote: Why not go for hardware that is specifically designed for Linux and remove any potential problems completely? https://zareason.com/shop/Laptops/ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/2d3ba284-43c4-4883-957d-605adb87e...@pobox.com
Re: Anybody have a chromebook? Can it run Debian?
On Feb 2, 2013, at 1:30 AM, Lars Noodén wrote: Also beware of the screen resolution. It might not be what you think it is. I notice it is missing from the stats above. Staples technical details section says this: HD Widescreen CineCrystal™ LED-backlit LCD Display (1366 x 768) Intel HD Graphics chip 128MB Video Graphics Memory So it's not a huge display (either in physical size or in pixel real- estate) but for the price, it's acceptable. However, the reports of firmware problems, mentioned by others in this thread, are worrisome... Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/d1d61e8e-af41-4562-bc09-fdd154231...@pobox.com
Re: Seeking advise on changing names of target in dm-crypt
On Feb 19, 2013, at 12:10 PM, J.A. de Vries wrote: On 2013-02-19 20:36, green wrote: I use LUKS and cryptsetup encryption, but not for the root filesystem. Probably fstab and crypttab are all that you need to change. Grub configuration is another possibility, but I am guessing that you have a dedicated /boot partition and so no grub change is necessary. Yes, that's correct. /boot is the only non-encrypted partition I have. I suggest that you make sure you have a live Linux CD/DVD (eg. grml) (just in case), make the changes, and reboot. That's always sound advise. Thanks for your time. I think I'll dive into the deep and see what happens. Grx HdV Please give us a report when you're done. I curious how it turns out! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4345591a-08e8-40cd-ae69-32f020d23...@pobox.com
Re: Keeping backups until storage runs short (deja-dup style) with command line tools?
On Feb 21, 2013, at 3:46 AM, Johannes Graumann wrote: Hi, deja-dup has an option to keep backups forever or until storage on the drive backed up to runs short (at which point it starts deleting old backups). Does someone have any pointers on how to copy that behavior using duplicity and/or other CLI tools? Cheers, Joh Have you looked at the rsnapshot package? Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/22a1c6b2-750e-4fb1-a839-46933a4fe...@pobox.com
Re: Understanding versioning.
On Nov 8, 2011, at 2:07 AM, Sthu Deus wrote: it seems to me to be weird having those epoches If all software developers were well behaved and they all co- operated in their versioning, it would be weird to have epochs. All versions, from all sources, would be monotonically increasing as a function of time. But, as we know, software developers are an independent bunch of cowboys. Sometimes, for reasons that seem good and reasonable to the individual upstream developer involved, software version time seems to run backwards. Epochs are there so the rest of us (who aren't upstream developers) can pretend it didn't do that -- when the developers glitch their versions, we just move into a different epoch and go on about our lives. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/edf1249b-a1d0-429f-abc5-524dd9621...@pobox.com
Why do I have wpasupplicant installed if I don't have a wifi interface?
Can anybody tell me why I have wpasupplicant installed, even though I don't have a wifi interface on this machine? The machine has a single 10/100 twisted pair ethernet interface which is configured static in the /etc/network/interfaces file. It does not have any wifi hardware, and (consequently?) no wifi mentioned in interfaces... If I try to deinstall wpasuplicant, it then wants to also remove network-manager and network-manager-gnome. Should I just let it? What would be the consequences if I do? Thanks! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/468f2377-d835-4541-b170-f6d34513b...@pobox.com
Re: Why do I have wpasupplicant installed if I don't have a wifi interface?
On Nov 14, 2011, at 8:35 AM, Henrique de Moraes Holschuh wrote: If you use a static /etc/network/interfaces, you're likelly to be much better off without that desktop fluff. IMHO, you should just get rid of it, at most you will lose the dekstop applets that show ethernet state. Thanks! I did. and it works fine! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/23554d82-8dfb-4850-8583-0635f1b82...@pobox.com
Re: Full Disk Encryption
On Nov 26, 2011, at 2:00 AM, Bob Proulx wrote: The way I like to set up the system is to set up /boot in its own partition on /dev/sda1. Then set up the rest of the disk in /dev/sda5 as a logical partition for an encrypted partition. Then use that encrypted partition for one large LVM volume. This includes swap. You definitely want to encrypt swap along with everything else. Unless you are concerned about growing swap at some later date, you should leave swap out of the LVM and encrypt it separately -- with a *random* key. I.e. something like this in /etc/crypttab: # Swap hda4_crypt /dev/hda4 /dev/urandom cipher=aes-cbc- essiv:sha256,size=256,swap You don't have to provide an extra key at boot time for swap (the system generates it automatically). This way, when the system is turned off, your swap becomes undecipherable. If you put swap on the LVM, its contents survive a reboot, and therefor can be read by anyone who has the key to the LVM. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/a61fcd91-efd5-4d8c-b7e3-854596c1c...@pobox.com
Re: Full Disk Encryption
On Nov 28, 2011, at 8:48 AM, J. Bakshi wrote: On Mon, 28 Nov 2011 13:15:59 + (UTC) Virgo Pärna virgo.pa...@mail.ee wrote: On Mon, 28 Nov 2011 00:59:34 -0500, Rick Thomas rbtho...@pobox.com wrote: Unless you are concerned about growing swap at some later date, you should leave swap out of the LVM and encrypt it separately -- with a *random* key. I think, that this would not work, if one wants to use hibernation. And that could be case on laptop. Good point I am already using both suspend and hibernation and expect the same after disk FDE. Thanks for pointing Yes... That's something I hadn't thought about. I've only used it for an always-on server. Another point about using a separate swap vs including swap on the encrypted LVM: On a server, the LVM will almost certainly be on a RAID. There's no point in putting swap on RAID. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/1036be0b-9635-4cf7-a147-e4e391c8b...@pobox.com
address and port translation (NAT) no longer required in IPv6 -- but...
On Dec 26, 2011, at 3:44 PM, Andrei Popescu wrote: On Lu, 26 dec 11, 21:39:27, Victor Nitu wrote: On 12/26/2011 08:00 PM, Andrei Popescu wrote: This is one reason I welcome the switch to IPv6. Just out of curiosity: can you be more specific on this issue? (please excuse me for being a bit off-topic). As far as I understand the main benefit and driver for adopting IPv6 is that there are enough addresses for every host in your lan to have its own public IP address, which completely eliminates (the need for) masquerading and (D)NAT. Hope this explains, Andrei It eliminates the need for masquerading and port translation, but it does not eliminate the need for a proper firewall. An (IPv4) router/NAT-box has the unavoidable side-effect of not allowing any incoming (Internet - LAN) connections unless they have been explicitly programmed by the user. Most people consider this to be a good thing. That's not automatic anymore with IPv6. But it easily can (and should, by default) be programmed into any IPv6 router. (Sigh!) ;-\ Now if somebody would just manufacture and sell an inexpensive IPv6-capable SOHO router... /-; (sigh!) Hope that explains (a little more), Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/f6bb41a2-9f3c-457a-a53e-d2c7121ef...@pobox.com
Re: address and port translation (NAT) no longer required in IPv6 -- but...
Thanks! Can you provide some specific model numbers? I'll need a box that can do IPv6 tunneling over IPv4, since none of the ISP's I have access to have native IPv6 or any plans for it in the foreseeable future. Of course, it will also need to be able to do basic stateful fire-wall stuff, and the IPv4 side will need to do NAT and port translation. Thanks! Rick On Dec 27, 2011, at 6:40 AM, Scott Ferguson wrote: Most of the manufacturers already do (or don't you consider sub-$100AU cheap?) Apple, Allied Telesis, AVM, Buffalo Tech, Cisco, D-Link, Funkwerk E.C., *cough* Juniper Networks, Linksys, Sonicwall, Trendnet. All sell cheap home/office routers. That's an incomplete list - and I've not covered enterprise solutions. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4772ca0a-9302-4eb1-9c71-8661abf56...@pobox.com
problems with having two DHCP servers...
On 12/27/11 22:04, Scott Ferguson wrote: It sounds like you are running two DHCP servers - in which case you have four options (none of which involve preseeding). If you have multiple DHCP servers the problem is *easily* fixed - please tell me the make and model of the primary (router/firewall) DHCP server and I'll give you instructions. Hi Scott, I'm not the OP, but I do have this problem. When I try to do an install (wheezy) on a network with two DHCP servers, the installer's dhcp-client never seems to get an IP address -- even though the two servers are both responding and both giving the same IP address. Both DHCP servers are dnsmasq. When I kill off one of the servers temporarily, all goes well. Is there a solution that isn't so drastic? Thanks! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4f056cbc.3090...@pobox.com
Re: problems with having two DHCP servers...
A limited amount of redundancy is good. If one goes down, the network can still limp along. Anyway, that's the theory. Rick On Jan 5, 2012, at 10:07 AM, Osamu Aoki wrote: I'm not the OP, but I do have this problem. When I try to do an install (wheezy) on a network with two DHCP servers, the installer's dhcp-client never seems to get an IP address -- even though the two servers are both responding and both giving the same IP address. Then why have 2? -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/d73b70b2-c677-4de4-a722-3606ae535...@pobox.com
Re: problems with having two DHCP servers...
On Jan 5, 2012, at 1:40 PM, John A. Sullivan III wrote: On Thu, 2012-01-05 at 12:57 -0500, Rick Thomas wrote: A limited amount of redundancy is good. If one goes down, the network can still limp along. Anyway, that's the theory. Rick On Jan 5, 2012, at 10:07 AM, Osamu Aoki wrote: I'm not the OP, but I do have this problem. When I try to do an install (wheezy) on a network with two DHCP servers, the installer's dhcp-client never seems to get an IP address -- even though the two servers are both responding and both giving the same IP address. Then why have 2? The problem is when they are administering addresses in the same range. I've not configured DHCP for a long time so maybe this is common now and the problems have all been resolved but, in the past, if one wanted redundancy, one would administer different ranges on the same subnet so that there would be no conflicts. Hope that helps - John Yes, that does seem to fit. The two servers have different ranges for their dynamic clients (i.e. transient laptops with no fixed IP address) but for the static clients (desktops with a fixed IP address) there is only one address, so both servers have to provide the same address. So... when I do an install for a machine with an unknown Ethernet Mac address -- hence getting it's IP from one or another of the dynamic ranges -- all goes well. It's only when I attempt to install a machine with a known Mac address (hence a single static IP) that I run into trouble. Somehow, I would have thought it should be the other way round -- conflicting responses would cause problems, not two responses that both say the same thing. Sigh! Just shows how much I know... So is there a way to have both redundancy *and* reliable installs? Thanks for any help, Rick PS: As others have noted, it seems to affect only the installer's DHCP client. After the reboot, there's no problem -- with either static or dynamic IP... -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/cbe291f4-f733-4eed-9cb3-6d62732e1...@pobox.com
Re: problems with having two DHCP servers...
On 01/05/12 16:30, John A. Sullivan III wrote: On Thu, 2012-01-05 at 15:55 -0500, Rick Thomas wrote: On Jan 5, 2012, at 1:40 PM, John A. Sullivan III wrote: On Thu, 2012-01-05 at 12:57 -0500, Rick Thomas wrote: A limited amount of redundancy is good. If one goes down, the network can still limp along. Anyway, that's the theory. Rick On Jan 5, 2012, at 10:07 AM, Osamu Aoki wrote: I'm not the OP, but I do have this problem. When I try to do an install (wheezy) on a network with two DHCP servers, the installer's dhcp-client never seems to get an IP address -- even though the two servers are both responding and both giving the same IP address. Then why have 2? The problem is when they are administering addresses in the same range. I've not configured DHCP for a long time so maybe this is common now and the problems have all been resolved but, in the past, if one wanted redundancy, one would administer different ranges on the same subnet so that there would be no conflicts. Hope that helps - John Yes, that does seem to fit. The two servers have different ranges for their dynamic clients (i.e. transient laptops with no fixed IP address) but for the static clients (desktops with a fixed IP address) there is only one address, so both servers have to provide the same address. So... when I do an install for a machine with an unknown Ethernet Mac address -- hence getting it's IP from one or another of the dynamic ranges -- all goes well. It's only when I attempt to install a machine with a known Mac address (hence a single static IP) that I run into trouble. Somehow, I would have thought it should be the other way round -- conflicting responses would cause problems, not two responses that both say the same thing. Sigh! Just shows how much I know... So is there a way to have both redundancy *and* reliable installs? Thanks for any help, Rick PS: As others have noted, it seems to affect only the installer's DHCP client. After the reboot, there's no problem -- with either static or dynamic IP... Hmm . . . could you install with a manual IP address and then simply change the configuration once the installation is done? - John Of course. And that's exactly what I usually wind up doing. Though now that I've discovered that temporarily killing one of the dhcp servers works, I may do more of that in the future. Really, I'm mostly interested in figuring out what's going on and probing to help get it fixed. Enjoy! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4f064899.6020...@pobox.com
Re: problems with having two DHCP servers... (Rick Thomas)
On 01/05/12 20:02, Scott Ferguson wrote: On 05/01/12 20:26, Rick Thomas wrote: On 12/27/11 22:04, Scott Ferguson wrote: It sounds like you are running two DHCP servers - in which case you have four options (none of which involve preseeding). If you have multiple DHCP servers the problem is *easily* fixed - please tell me the make and model of the primary (router/firewall) DHCP server and I'll give you instructions. Hi Scott, I'm not the OP, but I do have this problem. When I try to do an install (wheezy) on a network with two DHCP servers, the installer's dhcp-client never seems to get an IP address -- even though the two servers are both responding and both giving the same IP address. Both DHCP servers are dnsmasq. When I kill off one of the servers temporarily, all goes well. Is there a solution that isn't so drastic? Thanks! Rick Hi Rick - sorry about the delayed reply, I've been busy. I've had a quick look at the thread and I've a few questions before I make any suggestions. Busy happens. Thanks for getting back in any case. Q1. Is there any functionality only one of your DHCP servers[*1] can provide eg. wireless connection. They are essentially identical. Both are SheevaPlug ARM based plug-computers. I'm researching using cheap boxes like these (running Debian) to provide network services. I hope to show that one can use free software and very inexpensive energy-efficient general-purpose hardware do full-up network support (DHCP, DNS, TFTP booting, NIS, Kerberos, printer spooling, NTP, network monitoring, etc...) for much less money than conventional IT costs using commercial purpose-built routers. Redundancy and load-sharing are important parts of the strategy. Q2. What is the maximum number of clients you are ever likely to have connected to the networks serviced by these DHCP servers. In my test network, I don't expect to have more than 15-20 clients. In the eventual fully deployed system, I could be providing services to well over a 1000 clients. Here, redundancy and load-sharing will become crucial. Q3. Do you use PXE/GPXE/RIS? Not yet. it's in the plans though. Right now, I'm concentrating on DHCP and DNS service. Q4. If either of these DHCP servers doesn't run Debian - what is/are the make and model/s? See Q1. SheevaPlug, running Debian Squeeze. Q5. If either of these DHCP servers run FOSS - what is the DHCP package? Running dnsmasq providing DHCP and DNS [*1] I noted your intention of having a backup/failover DHCP server - I'd probably suggest a different way of doing that, but I'll wait on some answers first. Does that help? Thanks! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4f0688e4.9040...@pobox.com
Re: Message about ntp when updating
On Jan 11, 2012, at 10:17 AM, Sthu Deus wrote: Good time of the day, Patrick. You worte: I see this message when running an update: Installing new version of config file /etc/cron.daily/ntp ... insserv: warning: current stop runlevel(s) (0 1 6) of script `ntp' overwrites defaults (empty). Should I be concerned about it? And, if so, what am I supposed to do to correct it. Not answering to Your question, but as mine opinion - if You do not intend other hosts to be sync-ing time w/ this host, I think You need the service at all. For sync-ing time from Internet for the host You can use ntpdate in cron/anacron for example. One more reason not to use ntpdate: It's no longer supported but the upstream developers of the ntp package. The ntp daemon has been enhanced so that it can now do all the things people used to use ntpdate for. Then to simplify maintenance (no longer have to maintain/ synchronize two code bases for doing the same things) ntpdate has been dropped from future versions of the ntp package. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/3554ebee-7d30-49de-9ac6-d0f85dfc6...@pobox.com
gdm3 - how to put a picture on the login screen?
In an effort to make my life with wheezy more beautiful/serene and less silly-looking, I've been exploring ways to personalize the various screen parts. The gdm3 login screen by default provides a list of possible users and their names with a place that looks like it's intended to hold a picture (or avatar, if you will) of the person. How does one set that avatar to something more interesting than the default shadow head? Thanks! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4f1cb00e.9000...@pobox.com
Re: gdm3 - how to put a picture on the login screen?
On 01/22/12 20:52, Tony Baldwin wrote: On Sun, Jan 22, 2012 at 07:55:42PM -0500, Rick Thomas wrote: In an effort to make my life with wheezy more beautiful/serene and less silly-looking, I've been exploring ways to personalize the various screen parts. The gdm3 login screen by default provides a list of possible users and their names with a place that looks like it's intended to hold a picture (or avatar, if you will) of the person. Here's my gdm login screen: http://tonybaldwin.me/imgs/myGDMloginscreen.jpg Definitely possible to customize it. But, this is on Squeeze, and was done with the GDM Setup in the Debian menu. (I don't know for sure where that is in Gnome, since I'm using openbox, but I would guess Applications System Administration GDM Setup How does one set that avatar to something more interesting than the default shadow head? same GDM Setup program offers this, as well. ./tony Well, wheezy uses the gnome3 train-wreck. It doesn't seem to have anything resembling Applications System Administration GDM Setup I've googled til I'm blue in the face, I've guessed based on my googling that I need to manually edit something in the [greeter] section of /etc/gdm3/daemon.conf but there doesn't seem to be a human readable explanation of the available options I could put there and what they do. Any clues are welcome! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4f1d09a7.7090...@pobox.com
how to get gdm3 greeter to display menu of hosts for remote login via xdmcp
How do I get the gnome3 greeter to give me a menu of hosts on the local network who are willing to accept an xdmcp login? On my squeeze machines running gdm, at the login screen there is a drop-down called Actions that has one option called Remote login via xdmcp. When I choose that option, I get a list of hosts on the local network who are willing to accept logins via xdmcp. But on my wheeze machine, first of all there's no Actions drop down at all, and I can't find any other way to get the list of xdmcp accepting hosts. Does anyone know what magic I'm missing? Is there something I can put into one of the files in /etc/gdm3/ that will enable the remote host chooser? Thanks in advance! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4f26321e.20...@pobox.com
Re: ntp problem: the server clock slowly recedes
On Aug 9, 2011, at 5:41 AM, Stan Hoeppner wrote: On 8/9/2011 2:40 AM, owl...@gmail.com wrote: remote refid st t when poll reach delay offset jitter = = = = = = = = = = ntp1.inrim.it .CTD.1 u 46 64 377 23.641 329686. 2517.77 ntp2.inrim.it .CTD.1 u 29 64 377 25.236 329834. 2524.50 2.6.32-5-amd64 #1 SMP Tue Jun 14 09:42:28 UTC 2011 x86_64 GNU/Linux ... If this is a bare metal host then you probably have a hardware problem. In that case your system board will probably need to be replaced. In many cases, judicious use of adjtimex to trim the system clock can avoid a system board replacement. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/5a8f5475-be44-480f-9b18-514f099d4...@pobox.com
Re: jigdo-bd
On Aug 12, 2011, at 3:43 PM, Dejan Ribič wrote: Dne 12.8.2011 21:26, piše Paul E Condon: I am looking into downloading some iso images of squeeze. I have not done this in quite a while and I see that things have changed a lot while I wasn't looking. I think I need jigdo-cd. But what is jigdo-bd? Under what conditions is it the proper choice? bd must be mnemonic for something, but I don't make the connection the way I do for cd. TIA Hi, bd stands for Bluray-Disc. Cheers, Dejan You might want it if you have a bluray drive for some reason. I haven't seen a regular PC with a BD drive yet, so I assume they are fairly rare in the wild. Reader/Writer drives (in the same form- factor as standard PC 5.25-inch internal CD/DVD drives) seem to be selling for about US$100 - $200 on the web. At http://en.wikipedia.org/wiki/Blu-ray_Disc_recordable is the following information: Blu-ray Disc recordable (or BD-R) refers to two direct to disc optical disc recording technologies that can be recorded on to an optical disc with an optical disc recorder. BD-R discs can be written to once, whereas BD-RE (Blu-ray Disc Rewritable) can be erased and re- recorded multiple times. Disc capacities are 25 GB (23.28 GiB) for single-layer discs, 50 GB (46.57 GiB) for double-layer discs, 100 GB for triple-layer discs, and 128 GB for quad-layer discs. 25GB is about 5 single-layer DVDs. So you can get a substantial fraction of the entire Debian distribution, including source, on a single BD disk. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/bf642dcd-0bad-48fe-aff5-438428b93...@pobox.com
Re: Partitioning my new 1TB drive
On 9/25/2011 10:19 PM, Marc Shapiro wrote: Now that I have my Seagate 1TB drive functional and recognized by Linux, I need to format the thing. As I mentioned in my previous thread, my current boot drive on this box is only 40 GB. I intend to keep it as the boot drive and use the new drive primarily for extra storage. Since I don't do regular backups (I already know what you will say about that) I am also wondering what I might be able to do, now that I have space, for a little added security in that matter. Perhaps I could just copy the 40GB boot drive to a backup directory tree and keep it updated with rsync, or some such? Any ideas on that? My main question, however, was partitioning the 1TB drive. I have never had this much space to deal with. While it may be technically possible to simply make one big partition, I am guessing that it is probably not a practical way to do it (and I will want several different partitions, anyway). If I am using ext3 partitions with neither vast numbers of tiny files, nor small numbers of monstrously large files, what is a reasonable maximum size for a partition that will be easy on the file system and the drive, itself? How you partition it depends on what you want to use the space for. Tell us more about it and we can tell you what we'd do if we were in your shoes. As far as backups? I'd allocate some space -- maybe 500 GB, on the new drive and use rsnapshot to back up the 40GB main disk.[*] Then you have 500GB left over to put stuff you don't want to back up (e.g. copies of CDs and DVDs that you think it's convenient to have online, but that you can restore from the original if they get clobbered.) Enjoy! Rick [*] see http://www.rsnapshot.org/; for a description. do aptitude install rsnapshot to install the Debian version. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4e7feb93.6080...@pobox.com
Re: Why is exim installed by default?
On Oct 16, 2011, at 5:47 PM, Andrew Wood wrote: Why is an MTA (exim) installed by deafult on Squeeze even if the 'Mail Server' option is not selected during installation? Does it actually serve any purpose on an out of the box basic installation? Andrew Yes, It serves as local mail delivery agent for messages from cron and other system daemons. There are lower overhead/less feature-full replacements if you like, but exim4 works well and has the flexibility to handle things like sending (locally originated but non-locally destined) mail to a smart host -- things that don't strictly fit into the mail server job description, but are necessary all-the-same. And it can grow into a full-fledged mail server if you ever need it. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/da7c1392-bd19-43cd-922d-18fdd258a...@pobox.com
Re: Sticky bit on device files?
I tried it on a couple of Debian Squeeze machines and only saw shm d Which makes sense. What release are you running? Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/9b28e00a-17e0-4578-a689-59a1db271...@pobox.com
Re: Sticky bit on device files?
On Feb 16, 2012, at 12:32 PM, Peter Lebbing wrote: On 16/02/12 17:54, Rick Thomas wrote: I tried it on a couple of Debian Squeeze machines and only saw shm d Which makes sense. Correct, that is also what I see on Squeeze boxes. What release are you running? This is on Wheezy (testing). This behaviour is relatively new in testing. Greets, Peter. OK. I tried it on one of my Wheezy boxes, I got the same results as you. Your later posting gives an explanation. Interesting... Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/55d003c5-1662-487b-9d64-44a994591...@pobox.com
Re: printing dead slow since squeeze
On 03/02/12 15:04, Rémi Letot wrote: I force reinstalled the whole cups stack (cups and co, foomatic,...) just to be sure that no etch file was lying around, but it didn't help. Thanks, Try doing: aptitude search '~c' to get a list of packages that have been removed but left configuration files lying around. One of them may be causing your problem. You can purge them all by doing sudo aptitude -Pv purge $(aptitude search '~c' -F '%p') if you're confident it won't hurt your system. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4f51c6a1.4000...@pobox.com
Re: Can no longer mount SDHC card
On 03/22/12 10:47, Camaleón wrote: To be sincere, I'm still unsure about what log file holds what information. In openSUSE, the main log was /var/log/messages and you had to look there to see the most relevant information, but here (Debian) seems to be /var/log/syslog. Then there are additional small files for authentication, user and other stuff I never remember which is disseminated into small registries files. Take a look at /etc/rsyslog.conf and man rsyslog.conf rsyslogd All your questions will be answered (albeit cryptically) there. Enjoy! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4f6c034c.9080...@pobox.com
Re: Can no longer mount SDHC card
On Mar 23, 2012, at 11:53 AM, Camaleón wrote: On Fri, 23 Mar 2012 00:59:56 -0400, Rick Thomas wrote: On 03/22/12 10:47, Camaleón wrote: To be sincere, I'm still unsure about what log file holds what information. In openSUSE, the main log was /var/log/messages and you had to look there to see the most relevant information, but here (Debian) seems to be /var/log/syslog. Then there are additional small files for authentication, user and other stuff I never remember which is disseminated into small registries files. Take a look at /etc/rsyslog.conf Nothing of interest (for the matter) here. and man rsyslog.conf rsyslogd Still no way to know where messages are being dropped. I would like to see more integration/compatibility in this regard coming from all distributions. All your questions will be answered (albeit cryptically) there. Mmm... I'm afraid they're not ;-) Greetings, -- Camaleón Perhaps I didn't understand your question. Those man pages, along with the rsyslog.conf file will give you the general rules governing which messages get sent into which log files. Any particular messages will be a special case of those general rules. I did say that they were cryptic. So the application of the rules may require specialized knowledge, often available only by examining the source code. Perhaps your question was prompted by the need for that specialized knowledge? If that's the case, I apologize for misunderstanding. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/225fac29-e7a4-40b2-a371-bc43d3225...@pobox.com
Re: Logs normalization (was: Can no longer mount SDHC card)
On Mar 24, 2012, at 12:58 PM, Camaleón wrote: Well, it's far more simpler than that: I was only whining for not having the same log files, located in the same place and holding the same information between the different distributions :-) Ahhh... The joy of Linux! /-; Linux is all about choices. Sometimes we like that -- we call it freedom. Sometimes we don't -- then we call it chaos. Enjoy! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/46370bc3-6818-4001-af9f-c4d47a124...@pobox.com
CUPS Driver for Epson Stylus NX420 printer?
Anybody know what driver I should be using in Debian Squeeze for my new Epson Stylus NX420 printer? There's no NX420 in the list of drivers offered by the CUPS web interface. Thanks for any help! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/983d8932-b5f8-4595-ad78-a6bc7eee7...@pobox.com
Re: CUPS Driver for Epson Stylus NX420 printer?
On May 20, 2011, at 12:48 AM, Roger Leigh wrote: On Thu, May 19, 2011 at 04:50:45PM -0700, Rick Thomas wrote: Anybody know what driver I should be using in Debian Squeeze for my new Epson Stylus NX420 printer? There's no NX420 in the list of drivers offered by the CUPS web interface. It's unsupported by free software at the moment. The gutenprint driver supports the NX415, which may be entirely compatible, and it will offer full support when the new model is added. Note that this might need the gutenprint from unstable; it will rebuild without issues for squeeze. If that doesn't work, Epson provide a proprietary driver (but I don't think it's that great). Thanks, Roger! I'm glad to know that there's something in the works. I tried the NX415 driver from Debian Squeeze and got a couple of lines at the top of a page and lots of blank paper after that. I googled a bit and came up with a website from openprinting.org that had proprietary (and some open) drivers for lots of printers, including the NX420 -- as .deb and .rpm, no less! The one for the NX420 was i386 and AMD64 binary-only, no source provided, and the machine I wanted to install it on was an ARMel OpenRD Ultimate. Fortunately I had an old Toshiba laptop I'd recently installed Debian Squeeze on, so I downloaded the openprinting.org driver and installed it there. It seems to work OK, but if I export the printer via CUPS from the Toshiba to the OpenRD and try to use it to print that way from the OpenRD, the driver on the Toshiba dies with a segfault. So it's not perfect. If I replace lpr on the OpenRD with a stub that does ssh to the Toshiba and runs lpr there, everything seems to be OK. But it's a kludge that should not be necessary if Epson would just release the source for their drivers. Ahhh well... A perfect world would be *so* boring! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/cff8652d-b540-40b4-8081-90edd1cfe...@pobox.com
Re: CUPS Driver for Epson Stylus NX420 printer?
On May 20, 2011, at 3:12 AM, Camaleón wrote: On Thu, 19 May 2011 16:50:45 -0700, Rick Thomas wrote: Anybody know what driver I should be using in Debian Squeeze for my new Epson Stylus NX420 printer? There's no NX420 in the list of drivers offered by the CUPS web interface. Your printer is listed here: http://www.openprinting.org/printer/Epson/Epson-NX420_Series So you can try with the Avasys driver (epson-nx420), at least for printing. If you also want to use the scanning facility, there is also a standalone driver/utility for the scanner: http://avasys.jp/eng/linux_driver/download/ Thanks, Camaleón! I'd already discovered openprinting.org. As I described in my reply to Roger's email, it wasn't a perfect solution, but it got me up and running after a bit of kludging. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/10d35684-61c5-4af8-88e5-5665c0736...@pobox.com
Re: CUPS Driver for Epson Stylus NX420 printer?
On May 20, 2011, at 10:18 AM, Rick Thomas wrote: if I export the printer via CUPS from the Toshiba to the OpenRD and try to use it to print that way from the OpenRD, the driver on the Toshiba dies with a segfault. If anybody wants to try and help me debug the problem, here's the relevant portion of the log file from the Toshiba. Thanks! Rick error_log.gz Description: GNU Zip compressed data
Re: CUPS Driver for Epson Stylus NX420 printer?
On May 20, 2011, at 11:29 AM, Camaleón wrote: There is a source rpm package, but I'm not sure if this can help you to rebuild the package for your architecture :-? Interesting. I'll have a look at it if I get some time. I wonder if there's a source plain-and-simple tar-ball in the same place? I'll investigate. If I find anything useful, I'll report back. If not, of course I can dissect the rpm and get at it that way. But a tar-ball with a README/INSTALL file would be perfect. But a perfect world would be *so* boring... Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/a7b7a16d-5562-4de5-bb0b-057b8eb65...@pobox.com
Re: CUPS Driver for Epson Stylus NX420 printer?
Actually, the evidence in this particular case is pretty optimistic: 1) I was able to find a (binary i386/AMD64 only) driver at OpenPrinting.Org with only a little bit of google-ing. 2) When I whined about not being able to use i386 binaries on my ARM machine, Camaleón (thanks!) found a source RPM at the same site. I haven't taken the RPM apart and compiled it yet, but it's certainly a start. If Epson had a hand in making that driver available to OpenPrinting, I'd have to say they care more than most about their non-Windows users. For my money, we'd all be better off if the energy expended in complaining about lack of support for open source by commercial companies (who have a fiduciary --hence legal-- responsibility to their share holders, and only a somewhat tenuous moral responsibility to open-source users) were better used in figuring out why it seg- faults when used as a CUPS network printer. If you really support open source software, put your time and talent where your mouth is. Help make it better! Just my two cents... Rick On May 21, 2011, at 5:49 AM, Ron Johnson wrote: On 05/21/2011 02:54 AM, Klistvud wrote: [snip] How's this for a reason: Epson not giving a rodent's undertail for their non-Windows users? Surprising, since Epson printers used to be well-supported by CUPS. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/360be1aa-c1be-4cde-8838-f3ab45223...@pobox.com
Re: UUID - autmatically entries?
On May 21, 2011, at 11:09 PM, Ron Johnson wrote: Since like many others you find UUIDs a huge jumbled pile of human meaninglessness, then by all means create labels for all your fixed devices, and modify your /etc/fstab accordingly. Many of us have done so. Wouldn't it be nice if the Debian installer would offer (at some appropriate priority) the option to create labels and use them when partitioning disks? Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/b9d129a5-417c-4ebd-a2f5-95d4ff993...@pobox.com
Bug in bash? different from ksh, at any rate...
Can anybody explain this difference between the behavior of bash and
ksh?
When reading the man page, I would expect both of them to have the
behavior exhibited by ksh.
Why does bash seem to treat return like a single level break in
this context?
The echo $AA | while read is important context. If I change it to
for i in 0 1, return does as expected.
If it's any help, changing return to break 2 doesn't help. with
bash, it still gives 1 1 1 1
while ksh still gives 1
I wonder if it has anything to do with while read causing a subshell
to be created, and bash getting confused about the return inside of
a subshell. If so, it's a bug in bash that ksh gets right, so it
ought to be fixable.
ADVthanksANCE
Rick
--- example of strange behavior below ---
:~$ cat /tmp/testit
function strange {
for j in 0 1 2 3
do
AA=' 1
2'
echo $AA | while read i
do
echo $i
return
done
done
}
echo $(strange)
:~$ bash /tmp/testit
1 1 1 1
:~$ ksh /tmp/testit
1
--- example of strange behavior above ---
--
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Re: Bug in bash? different from ksh, at any rate...
On May 28, 2011, at 2:47 AM, David Sastre wrote:
On Sat, May 28, 2011 at 01:14:42AM -0700, Rick Thomas wrote:
Can anybody explain this difference between the behavior of bash and
ksh?
When reading the man page, I would expect both of them to have the
behavior exhibited by ksh.
Why does bash seem to treat return like a single level break in
this context?
The echo $AA | while read is important context. If I change it
to for i in 0 1, return does as expected.
If it's any help, changing return to break 2 doesn't help. with
bash, it still gives 1 1 1 1
while ksh still gives 1
I wonder if it has anything to do with while read causing a
subshell to be created, and bash getting confused about the return
inside of a subshell. If so, it's a bug in bash that ksh gets
right, so it ought to be fixable.
I can't reproduce it:
$ cat strange.sh
function strange {
for j in 0 1 2 3
do
AA=' 1
2'
echo $AA | while read i
do
echo $i
return
done
done
}
echo $(strange)
$ bash ./strange.sh
1 1 1 1
$ ksh ./strange.sh
1 1 1 1
ii bash 4.1-3 The GNU Bourne Again SHell
ii mksh 39.3.20100725-1 MirBSD Korn Shell
--
Huella de clave primaria: AD8F BDC0 5A2C FD5F A179 60E7 F79B AB04
5299 EC56
As noted in other responses to my question, the behavior depends on
how your particular shell does pipes (with or without generating a
subshell) You have the MirBSD Korn Shell. I was using the ksh that
calls itself The real, ATT version of the Korn shell which has
different behavior.
Thanks for testing!
Rick
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Re: aptitude/apt-get hangs during update (plus) on IPv6
On Jun 3, 2011, at 10:46 AM, Jeffrey B. Green wrote: On Fri, 03 Jun 2011 09:42:49 +0200 Pascal Hambourg pascal.m...@plouf.fr.eu.org wrote: It could be an MTU/MSS issue. See the recent discussion in the debian-ipv6 list with subject schein.debian.org [2001:4f8:8:36::6]. Many thanks. Changing the MTU to 1480 as suggested worked. Indeed as was mentioned my connection to the IPv6 network is via a tunnel and I'm assuming as a poster commented that someone on the path is not handling the packaging correctly. -jeff The RFCs say that any conforming implementation MUST handle an MTU of 1280, and may not necessarily handle anything larger. So it makes sense (if you're going to go to the trouble of setting the MTU in the first place) to use that number. The difference in overhead between 1280 and 1400 is negligible. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/e8a5248c-e882-455b-935b-a863eb2d7...@pobox.com
Re: aptitude/apt-get hangs during update (plus) on IPv6
On Jun 5, 2011, at 9:46 AM, Pascal Hambourg wrote: Rick Thomas a écrit : On Jun 3, 2011, at 10:46 AM, Jeffrey B. Green wrote: The RFCs say that any conforming implementation MUST handle an MTU of 1280, and may not necessarily handle anything larger. What is your point in mentionning this requirement? Do you mean that the server should not send packets bigger than 1280 bytes if it fails to handle properly path MTU discovery ? If so, I fully agree. My point is that by setting your MTU to 1280, you have done *your* part. At least you can be assured that all your packets will get thru without fragmentation, even if the host at the other end -- or some intervening router -- is improperly configured. If the host on the other end sets its MTU to something larger and an intervening router doesn't do fragmentation, they (or the admins of the router) need to fix that. An easy recommendation that you can make in this case (if the server admin on the other end is clueless but willing to help) is for them to set their MTU to 1280 as well. That will fix the problem regardless of intervening routers. Finding a (possible series of) mis-configured intermediate router(s) and convincing the respective router-admin(s) to fix their configuration is often difficult. It's easier if you have only one person to talk to, the server admin on the other end. So it makes sense (if you're going to go to the trouble of setting the MTU in the first place) to use that number. Lowering the MTU at the client side does not fix the problem that exists at the server side. It is just a workaround that works for TCP because it happens that TCP uses the *outgoing* MTU to calculate the advertised *incoming* MSS (how weird when you consider that internet routing is likely to be asymmetric). In the particular case in hand -- aptitude/apt-get talking to schein.debian.org, that is: the ipv6 avitar of security.debian.org -- I have observed that setting your own MTU to 1280 is all that's necessary. Enjoy! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/eb0db985-c349-4108-a689-120c3c997...@pobox.com
Re: [OT] Bad characters on e-mail headers (was iceape 1.0.9 and IPv6 compatibility)
On Jun 10, 2011, at 5:58 AM, Lisi wrote: I presumed it *likely* that you are female, but was uncertain Yes, most of the time on line it is very difficult to be sure. And we have to accept that statistically the majority ... On the internet, nobody knows you're a God... -- Dyslexic Unitarian (-: -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/80f1c7c2-fd08-48ed-83a2-b5849...@pobox.com
Default paper size in LibreOffice
I've tried everything I can think of, but every time I create a new document in LibreOffice Writer it wants to print on A4 paper. I'm in the US and everything else uses US-Letter paper. As I understand it, the accepted way to set this is with dpkg-reconfigure libpaper1. But this has no effect on LibreOffice. To reproduce the problem: In Gnome go to the Applications-Office-LibreOffice Writer menu. In the new document window, go to File-Print menu, click on the General tab, click on the Properties button. Notice that it says A4 for paper size. If I change that, I can print on Letter paper OK. But the next time I open a document, I get the same thing. What's the magic I'm missing? I've googled; I've searched the help documentation, I've found lots of suggestions. but none that work... Thanks in advance! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/7ace5918-b544-4b20-852a-6570798bb...@pobox.com
Re: Default paper size in LibreOffice - SOLVED?
On 06/26/11 20:38, Greg Madden wrote: On Sunday 26 June 2011 04:04:40 pm Rick Thomas wrote: I've tried everything I can think of, but every time I create a new document in LibreOffice Writer it wants to print on A4 paper. I'm in the US and everything else uses US-Letter paper. As I understand it, the accepted way to set this is with dpkg-reconfigure libpaper1. But this has no effect on LibreOffice. To reproduce the problem: In Gnome go to the Applications-Office-LibreOffice Writer menu. In the new document window, go to File-Print menu, click on the General tab, click on the Properties button. Notice that it says A4 for paper size. If I change that, I can print on Letter paper OK. But the next time I open a document, I get the same thing. What's the magic I'm missing? I've googled; I've searched the help documentation, I've found lots of suggestions. but none that work... Not sure if its relevant, I have one additional step involved here. Before clicking on 'properties' I select from a list of printers available, i have more than one installed on my system. Highlighting a printer I can set paper size, different sizes for different printers here. Its sticky. I am using LO from Debian backports on Squeeze. I don't know why this works, but I noticed that one of my machines had a package called cups-pdf installed (which hauls in libpaper-utils -- more on this later...) and on that machine I got a choice of two printers (as Greg notes above) one is lp (my networked postscript printer) and one is pdf a virtual pdf printer. On that machine, the default paper size is Letter. So I installed cups-pdf on another machine and lo-and-behold! Now the default paper size is Letter on that one too! I'm guessing that libpaper-utils is needed to make the configuration of libpaper1 visible to LibreOffice? Description: library for handling paper characteristics (utilities) The libpaper paper-handling library automates recognition of many different paper types and sizes for programs that need to deal with printed output. This package contains utilities for setting the system's default paper type and for accessing paper type information from shell scripts. Anyway, it seems to work. I wonder if libpaper-utils should be depended upon (or at least recommended by) by libreoffice? Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4e08123e.7020...@pobox.com
Re: Default paper size in LibreOffice - SOLVED?
On Jun 27, 2011, at 1:53 AM, Gerfried Fuchs wrote: * Rick Thomas rbtho...@pobox.com [2011-06-27 07:16:46 CEST]: I don't know why this works, but I noticed that one of my machines had a package called cups-pdf installed (which hauls in libpaper- utils -- more on this later...) and on that machine I got a choice of two printers (as Greg notes above) one is lp (my networked postscript printer) and one is pdf a virtual pdf printer. On that machine, the default paper size is Letter. Out of curiosity, what's the content of your /etc/papersize file in all your environments, especially the ones that give you the wrong result? All machines, currently and since installation, have letter in /etc/ papersize. It's on my checklist for installations. The difference between the one and the others is the presence of the cups-pdf and libpaper-utils packages. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/d84cf108-21d1-4bcd-88db-41e044568...@pobox.com
Re: IPv6 and DNS
On Jul 12, 2011, at 12:30 PM, Laurence Hurst wrote: I am only aware of using DHCP with DNS to achieve what I currently do wrt reliable, cross-device, forward and reverse host lookups but was wondering if there was a way to take advantage of IPv6's stateless configuration to get the same end. Looking at the research I've done so far it's not looking good since the stateless addresses are not guaranteed - I found one document referring to Windows specifically randomising IPv6 addresses rather than using the MAC (no idea if this is default or configurable). H Laurence, I've been doing essentially this (what you propose) for over a year, using a tunnel from SIXXS. What I've found is: +) Stateless automatic address configuration (SLAAC) works OK on all the platforms I've tried it on (MacOS-X, Windows Vista and XP, Debian and CentOS Linux). By works I mean A unique IPv6 address is assigned and people can connect to and from that address. +) SLAAC does not interact automatically with DNS or DHCP/DHCPv6. That's up to you. +) Manually entering IPv6 addresses into DHCPv6 or DNS tables is no harder than the same job for IPv4 addresses. The only difference is that the addresses involved are not assigned by you, the admin -- they are the addresses discovered by SLAAC. +) Addresses assigned by SLAAC are permanent enough for most purposes. If you swap NIC cards around a lot for some reason, this would change; but I'm having a hard time imagining a SO/HO network where you would do that. +) Getting your reverse DNS (IPv6 address - name) supported outside of your home network is difficult/impossible. It's no problem, of course, *inside* the home network where you control the DNS server. [**] +) Getting global (outside the home network) forward DNS (name - IPv6 address) support is easy. I use PairNIC, but almost any registrar will provide the service for a reasonable fee. +) It can be nice to be able to bypass the ISP-imposed NAT. You can SSH directly into your home server without messing around with port mapping. This has a security downside, of course, but the convenience is nice. +) Essentially everything I used to do with IPv4, I've been able to do the same with IPv6. One exception is installing software. Even the Debian installer exclusively over IPv6 is a work in progress. I haven't tried it with CentOS, but I expect Debian is ahead of them. Microsoft or Apple, forget it! On the other hand, once you have an OS installed, apt and aptitude work just fine over IPv6. +) I haven't experimented with doing IPv6 firewalls yet, but that's a project I do plan on exploring soon. Have fun! It's a big new world out there! Rick [**] I haven't found a good free way to do reverse DNS outside the home network (either sense of free -- or even proprietary but inexpensive, for that matter!). I'd love to hear from anyone who has! -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/b118254f-3abc-4670-8e7d-f5db216d3...@pobox.com
Re: IPv6 and DNS
On Jul 19, 2011, at 6:13 PM, John Hasler wrote: Go Linux writes: How is [IPv6] going to work on DIALUP! I wrote: Just fine. What makes you think it wouldn't? Johan Kullstam writes: The fact that it doesn't work anywhere else? :- Works fine here. Here too. What kind of problems are you having, Johan? Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4c618f70-431f-42fc-8c91-383a45896...@pobox.com
Re: Backup Software
On Jul 21, 2011, at 10:10 AM, Nico Kadel-Garcia wrote: On Thu, Jul 21, 2011 at 3:57 AM, Johann Spies jsp...@sun.ac.za wrote: On Thu, Jul 21, 2011 at 08:20:26AM +0200, lee wrote: Ethan Rosenberg eth...@earthlink.net writes: What software would you recommend to backup a Debian system on a stand-alone computer? If possible, tie rsync to rsnapshot to provide hardlinked daily, weekly, or monthly snapshots. I urge you to check it out for a supported tool that does just what you need. I also recommend rsnapshot. It's easy to setup and use, and completely automatic once you've set up the config file. And, just as important, easy and intuitive to restore from. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/e747882f-d986-49df-95b2-255ce3818...@pobox.com
Re: IPv6 and DNS
On Jul 21, 2011, at 3:29 AM, Ivan Shmakov wrote: Johan Kullstam kullstj...@verizon.net writes: […] My ISP does not offer IPv6. And in the case of NAT'ed IPv4, it's still possible to register for a free-of-charge tunnel service at http://sixxs.net/ and use AICCU (# apt-get install aiccu.) This (SIXXS) is what I use at home. It works a treat for me. Easy to set up. Easy to use. Fully connected to the IPv6 internet. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/ef9e9f22-e686-4ab6-a285-1afe47680...@pobox.com
Re: 6rd vs. interfaces(5)
On Jul 22, 2011, at 5:17 AM, Dejan Ribič wrote: Dne 22.7.2011 11:09, piše Ivan Shmakov: Rick Thomasrbtho...@pobox.com writes: On Jul 21, 2011, at 3:29 AM, Ivan Shmakov wrote: […] And in the case of NAT'ed IPv4, it's still possible to register for a free-of-charge tunnel service at http://sixxs.net/ and use AICCU (# apt-get install aiccu.) This (SIXXS) is what I use at home. It works a treat for me. Easy to set up. Easy to use. Fully connected to the IPv6 internet. One of the ISP's here has finally started to offer IPv6, namely: 6to4 (AIUI, they run their own gateway for that) and 6rd. Unfortunately, 6rd is only available for Linux 2.6.33 and later (as per Wikipedia), which isn't in Squeeze. But anyway, is there a way to add a 6rd tunnel to interfaces(5)? TIA. Hi, you can install 2.6.38 from squeeze-backports[1], works perfectly. Cheers, Dejan [1]http://backports-master.debian.org/Instructions/ Or, if you already have a home network with more than one computer (if you're interested in IPv6, I'll bet that description fits you) I'd recommend to invest a small amount of money (US$200) in a small computer (like an OpenRD or one of the plug machines from Marvel, or an ALIX board from PC-Engines. If you don't care about energy usage, an even cheaper alternative is to reuse an obsolete PC -- I'll bet you've got one of them in your garage waiting to be recycled.) Make that your IPv6 gateway -- run Debian testing on it. Having a separate single-purpose gateway router has the advantage that you can experiment with things like firewalls and new drivers without endangering the rest of your machines. That's what I did. I'm quite pleased with the result. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/bf124a4c-3e6f-4d9c-ae5d-f4b1945a6...@pobox.com
Re: installing debian from USB... IS IT POSSIBLE?
On Jul 28, 2011, at 5:12 PM, Per Carlson wrote: On Thu, Jul 28, 2011 at 09:15, Scott Ferguson prettyfly.producti...@gmail.com wrote: Yes it's with the official documentation:- http://www.debian.org/releases/stable/i386/ch04.html.en Where the first sentence reads: To prepare the USB stick, you will need a system where GNU/Linux is already running and where USB is supported.. So, to install Debian from an USB-stick you need a system where Debian (for example) is installed. Smells recursion here :-) IMHO there should be some hints what to do if the user currently is running something else than GNU/Linux, like Windows or OS X. In Mac OS-X, it should be pretty straight-forward. E.g. the dd command exists in standard OS-X. There may be some tricks required to write directly to a USB stick device, but I'm guessing it's not impossible. But the real answer to your point is this: If you're thinking of running Linux, you probably have a friend who has Linux running. Friends are good things to have. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/12a96f59-892b-433e-a712-6486522ef...@pobox.com
Request for enhancement [Re: Question about /etc/fstab in Squeeze]
On Dec 19, 2010, at 8:09 AM, Stephen Powell wrote: Caution: reformatting a swap partition with mkswap will change the uuid unless the existing one is explicitly re-specified during formatting. Which raises a question that has been on my mind for a while... The Debian Installer insists on reformatting any swap partitions it finds, even though that partition, specified by UUID, is probably in use in the /etc/fstab for some other instantiation of Linux -- thus breaking the other Linux, leaving it without a usable swap partition. Would it be possible to either: 1) have the option (default) of *not* reformatting a swap partition or 2) if reformatting is necessary or desired, have the option (default) of preserving the UUID. or 3) using LABEL= instead of UUID= in fstab for swap partitions, if it turns out to be easier to preserve a LABEL than a UUID. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/25d65ecd-1ced-4b5b-9b81-f562ed14c...@pobox.com
Re: Fun with DVD-RAM
Curt Howland wrote: Is there a way to do a file system check on a UDF disk? Next, while I realize that UDF spreads the writes around and makes the disks last longer, I am using them for long-term archive rather than something like a daily backup. Is there a reason anyone can think of for not reformatting in ext2 or some other fsck-able format? (I know not to use a journaling file system, because of the myriad rewrites of the journal itself) Curt- Have you thought about a simple log-structured filesystem? Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4d0fb635.7040...@pobox.com
Re: Fun with DVD-RAM
On Dec 21, 2010, at 5:24 PM, Curt Howland wrote: On Monday 20 December 2010, Rick Thomas was heard to say: Curt Howland wrote: Is there a reason anyone can think of for not reformatting in ext2 or some other fsck-able format? Have you thought about a simple log-structured filesystem? Rick Which would you suggest? As an aside, I threw away that particular disk, and simply took a new one out and used that. It's amazing that there is no udffsck in the Debian udfutils package. Curt- Using aptitude search lfs (I tried other variants on log structured filesystem and go nothing) turned up nilfs2-tools and nilfs2- modules and nilfs2-source. The home page seems to be http://www.nilfs.org/ . I've never used it myself, so I can't recommend pro or con. My remark was just in passing that a log-structured filesystem would seem to be perfect for your needs. You should also investigate (try google) the filesystems that are being developed for use with flash-RAM, which shares many of the distinctive characteristics of DVD-RAM. If you find anything useful, I'd be interested to hear. This is an active area of development these days (powered by the dropping cost of flash RAM and the possibility of using it for low-power and very fast system residency devices for embedded systems), so it should be a fertile ground for google searches. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/69f94694-c37b-46d6-8e2c-bb1a976c5...@pobox.com
Re: Request for enhancement [Re: Question about /etc/fstab in Squeeze]
On Dec 20, 2010, at 3:07 AM, Herbert Kaminski wrote: Rick Thomas schrieb: 2) if reformatting is necessary or desired, have the option (default) of preserving the UUID. This would be an useful option for all partitions, not only for swap, for people like me who dare to test DI in a spare partition of their normal workstation. cu Herbert Here's an easy way out... Add an option to mkswap (and mkfs, if that seems appropriate -- right now, I think swap is critical and the other filesystem types are merely annoying. YMMV) that says assume that the filesystem is currently formatted as swap and preserve the UUID while re-formatting it according to the other options. Then modify the installer partitioner code to use that option by default when invoking mkswap. Adding the code to mkswap should be a piece of cake. (I'm on vacation right now. I'll have a crack at it when I get back to civilization if other things don't have higher priority by then.) I don't know enough about the installer partitioner code to tell whether adding an option to invocations of mkswap is easy or hard. I'm guessing easy, but I'm not volunteering to do it. Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/bd8e-3bd3-4179-88e4-357b77aeb...@pobox.com
[slightly OT] Internet accessible home security systems using Debian?
Does anybody have any experience installing/using an internet accessible home security system? We recently bought a retirement home, but it will be a year or so before we can move in -- leaving the place uninhabited most of the time. I'd like to install an inexpensive (under $1000 for parts -- I'll do the installation myself) CC-TV (CC=closed circuit) and recorder that can be connected to a Linux-based computer I can access over the Internet. Has anybody done such a thing? Any recommendations? A friend recommended Apex CC-TV. Their web site has a setup with 4 cameras and a 250GB DVR that has the ability to remotely view live and recorded video from any Internet connection. Has anybody here ever dealt with them? Any thoughts? Thanks in advance! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/8eb861ec-0098-48ad-b139-8d500ed54...@pobox.com
Re: [slightly OT] Internet accessible home security systems using Debian?
Cool! Thanks, I'll look into those. Rick On Dec 30, 2010, at 2:10 PM, Mirco Piccin wrote: Hi, We recently bought a retirement home, but it will be a year or so before we can move in -- leaving the place uninhabited most of the time. I'd like to install an inexpensive (under $1000 for parts -- I'll do the installation myself) CC-TV (CC=closed circuit) and recorder that can be connected to a Linux-based computer I can access over the Internet. you can use ZoneMinder http://www.zoneminder.com/ with or without DVR (ZoneMinder itself can act as video recorder). Zoneminder has a lot of features (e.g. Motion Detection, Trigger, email delivery..), and a wui - web user interface. It supports lan streaming (e.g. Ip Cam, Video server) and usb cam. Or, if you want to save more $$, you could use also something like this: http://icamview.com/ that convert usb camera in ip camera, providing Motion Detection, email delivery, ftp upload... My 2 cents Regards M -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/e03a4c65-dc47-437a-aca0-80fb99826...@pobox.com
Re: Hardware needed for home network
On Feb 13, 2011, at 9:09 AM, Tixy wrote: (I don't discount me getting something horribly wrong, this setup is only a few weeks old and my first foray into firewalls and routing.) Computer security is so much fun! /-; As others have pointed out, it is *possible* for an attacker to get directly to the client machines without going thru your server. However, it's not as likely to actually happen as they make it seem. I can think of a couple of ways a determined enemy could do it, but it would require a specialized attack knowing many of the details of your setup. It's unlikely that a random script-kiddy would have the detailed expertise (or the persistence) required. So... unless you've made some enemies in places like the American CIA or the Russian Mafia you're probably safe. That said, there's a cheap way to be a bit safer: Buy a USB to Ethernet adapter (about US$30 in office supply stores) and use it to attach your Sheeva-plug to the ADSL-Modem. This way you can keep the switch (with only the clients connected to it) on the Sheeva's Gig-E port. Then the hypothetical bad-guy who has taken over the modem has one more level of firewall to get thru in the Sheeva before he can have his way with your client machines. Have fun! Rick -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4cc3eaa7-c7d9-4a68-ba43-dd234b3f2...@pobox.com
Re: Woohooo! Dell + Linux
On Mar 30, 2007, at 3:23 AM, Paul Walsh wrote: (do manufacturers have to pay M$ to allow them to pre-install Windows?). Yes. But it's actually worse than that. They pay MicroSoft based on their total sales numbers. Not just the number of machines they happen to install Windows on. So Dell won't save a penny by selling you a machine with Linux on it. And they may loose some revenue by not being able to put free trial stuff on the desktop. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
