Gutman Method on Empty Space
Can anyone recommend a utility for the secure overwriting of unused disc space? I am a satisfied customer of Eraser for Windows. I'm looking for the same thing for FreeBSD. Thanks, Jason C. Wells ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Gutman Method on Empty Space
Hi there, Check out /usr/ports/security/wipe/ - It should meet your requirements. Cheers, Marc On Thu, Jan 17, 2008 at 12:10:02AM -0800, Jason C. Wells wrote: Can anyone recommend a utility for the secure overwriting of unused disc space? I am a satisfied customer of Eraser for Windows. I'm looking for the same thing for FreeBSD. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Gutman Method on Empty Space
Marc Silver wrote: Hi there, Check out /usr/ports/security/wipe/ - It should meet your requirements. Or always 'rm -P' :-) Peter -- http://www.boosten.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Gutman Method on Empty Space
Hi there, On Thu, Jan 17, 2008 at 09:22:33AM +0100, Peter Boosten wrote: Or always 'rm -P' :-) Nice... never knew about this. That said, this won't satisfy the Gutmann requirement as far as I understand it and overwriting a file three times is not considered a true secure wipe of data. This data would still be theoretically recoverable. Cheers, Marc ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Gutman Method on Empty Space
man dd On Thu, 17 Jan 2008, Jason C. Wells wrote: Can anyone recommend a utility for the secure overwriting of unused disc space? I am a satisfied customer of Eraser for Windows. I'm looking for the same thing for FreeBSD. Thanks, Jason C. Wells ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: how to be *nix programmer
This is a very good book: http://www.informit.com/store/product.aspx?isbn=0201702452rl=1 Also these are very nice resources, it know it's NetBSD: http://www.netbsd.org/docs/kernel/index.html http://www.netbsd.org/docs/internals/en/index.html Kind regards, Tom - Oorspronkelijk bericht - Van: Radheshyam Bhatt [mailto:[EMAIL PROTECTED] Verzonden: woensdag, januari 16, 2008 09:48 PM Aan: freebsd-questions@freebsd.org Onderwerp: how to be *nix programmer Hello People, How's it going?I am interested in to developing drivers for FreeBSD. How do I go about start learning program for that? What books resources I should look in to. I know C, and I am learning about processes, and system calls. Also where would I take my questions to if I don't get something and need help for something in system's programming... Please email me back.. thanks in advance, Good Day, Radheshyam [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Gutman Method on Empty Space
Hi there, On Thu, Jan 17, 2008 at 09:43:46AM +0100, Wojciech Puchar wrote: how? even single write is enough Not according to the paper that Gutmann wrote: http://www.usenix.org/publications/library/proceedings/sec96/full_papers/gutmann/ In short, he says that if you know how the data itself was overwritten it can be recovered. If I recall, the DoD standard for the deletion of data is to overwrite it 3 times. Obviously it all comes down to how important the data is that you're removing, but a single write is not enough if the data needs to be disposed of 'securely'. Cheers, Marc ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Gutman Method on Empty Space
That said, this won't satisfy the Gutmann requirement as far as I understand it and overwriting a file three times is not considered a true secure wipe of data. This data would still be theoretically recoverable. how? even single write is enough ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
nfsv4: strange things happen
Hi we have a Solaris 10 NFS server and a FreebSD 7.0 NFS client. We have a couple of NFSv4 mounted filesystem on the client. nest.ifom-ieo-campus.it:/data/exports/obj/bsd7.ifom-ieo-campus.it/obj /mnt/nest nfs rw,-r=16384,-w=16384,tcp,-4 2 0 nest.ifom-ieo-campus.it:/data/exports/jails/bsd7.ifom-ieo-campus.it/jails /jails nfs rw,-r=16384,-w=16384,tcp,-4 2 0 We are having strange issues: for example - we cannot execute binaries on the mounted filesystems - if we umount one of the two filesystem from the client, the other filesystem must be remounted, otherwise a process the is writing on it exit with errors. For example we have a iozone running on /mnt/nest and we umount /jails, the iozoine exits with: Can not open temp file: iozone.tmp open: Unknown error: 10011 [EMAIL PROTECTED]:/mnt/nest/iozone/nfs4 Is anybody using nfsv4 between a Solaris 10 server and a FreebSD 7.0 client? Are you having problems on it? This is our FreeBSD version: [EMAIL PROTECTED]:~ uname -a FreeBSD bsd7.ifom-ieo-campus.it 7.0-RC1 FreeBSD 7.0-RC1 #0: Fri Jan 11 19:22:50 CET 2008 [EMAIL PROTECTED]:/mnt/nest/usr/src/sys/BSD7 i386 (everything si running fine on nfsv3). Bye and thanks for your help Valerio Daelli ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
release or rc?
Hi to all. Stupid question here ) I've cvsup'ed recently from 6.1 to RELENG_6_3. All seems to works pretty well right now. There are plenty of new drivers and fixes that I needed so much! Many thanks to developers! But now uname -a says it's 6.3-RELEASE. I thought it would be 6.3-RC2 . Is it still release candidate or not? Thanks, --Jeff-- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: how to be *nix programmer
Radheshyam Bhatt wrote: Hello People, How's it going?I am interested in to developing drivers for FreeBSD. How do I go about start learning program for that? What books resources I should look in to. I know C, and I am learning about processes, and system calls. Also where would I take my questions to if I don't get something and need help for something in system's programming... Please email me back.. I would recommend reading: The Design and Implementation of the FreeBSD Operating System by by Marshall Kirk McKusick (Author), George V. Neville-Neil (Author) The questions go where they are appropriate (scsi driver? perhaps freebsd-scsi@ or freebsd-hackers@ ?). -- Sten Daniel Soersdal ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: how to be *nix programmer
At 12:03 17/01/2008, you wrote: Radheshyam Bhatt wrote: Hello People, How's it going?I am interested in to developing drivers for FreeBSD. How do I go about start learning program for that? What books resources I should look in to. I know C, and I am learning about processes, and system calls. Also where would I take my questions to if I don't get something and need help for something in system's programming... Please email me back.. I would recommend reading: The Design and Implementation of the FreeBSD Operating System by by Marshall Kirk McKusick (Author), George V. Neville-Neil (Author) The questions go where they are appropriate (scsi driver? perhaps freebsd-scsi@ or freebsd-hackers@ ?). But there is no maillist for general programming FreeBSD, only specific ones. Perhaps a list for newbies FreeBSD programmers can fill the gap. - Useful Acronyms : FAQ = Frecuently Answered Questions ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: release or rc?
Jeff Laine wrote: Hi to all. Stupid question here ) I've cvsup'ed recently from 6.1 to RELENG_6_3. All seems to works pretty well right now. There are plenty of new drivers and fixes that I needed so much! Many thanks to developers! But now uname -a says it's 6.3-RELEASE. I thought it would be 6.3-RC2 . Is it still release candidate or not? Usually it means that this is a new RELEASE, but it is not announced until all mirrors and ftp sites have the right thing up. Whew, so now we have 7.0 release? :-) Laszlo ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: release or rc?
On Thu, Jan 17, 2008 at 01:30:23PM +0100, Laszlo Nagy wrote: Jeff Laine wrote: Hi to all. Stupid question here ) I've cvsup'ed recently from 6.1 to RELENG_6_3. All seems to works pretty well right now. There are plenty of new drivers and fixes that I needed so much! Many thanks to developers! But now uname -a says it's 6.3-RELEASE. I thought it would be 6.3-RC2 . Is it still release candidate or not? Usually it means that this is a new RELEASE, but it is not announced until all mirrors and ftp sites have the right thing up. But sometimes there is a last minute bug found that means things have to be rebuilt again. It should be considered a release candidate until the official announcement has been made. -- Insert your favourite quote here. Erik Trulsson [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
routing question
Hi, I have this configuration: Internet - [Hw Router] (LAN1: 192.168.2.0/24) - [ 192.168.2.138 GatewayComp 192.168.0.1 ] -- (LAN2: 192.168.0.0/24) I would like to access a computer from LAN1 to LAN2. LAN1 machine is: FreeBSD office1adsl.dyndns.org 6.2-RELEASE FreeBSD 6.2-RELEASE #0: Fri Jan 12 10:40:27 UTC 2007 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/GENERIC i386 office1adsl# ifconfig fxp0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST mtu 1500 options=8VLAN_MTU inet 192.168.2.114 netmask 0xff00 broadcast 192.168.2.255 ether 00:50:8b:f7:30:24 media: Ethernet autoselect (100baseTX full-duplex) status: active plip0: flags=108810POINTOPOINT,SIMPLEX,MULTICAST,NEEDSGIANT mtu 1500 lo0: flags=8049UP,LOOPBACK,RUNNING,MULTICAST mtu 16384 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3 inet6 ::1 prefixlen 128 inet 127.0.0.1 netmask 0xff00 office1adsl# netstat -nr Routing tables Internet: DestinationGatewayFlagsRefs Use Netif Expire default192.168.2.1UGS 0 1262107 fxp0 127.0.0.1 127.0.0.1 UH 0 127122lo0 192.168.0 192.168.2.138 UGS 04 fxp0 192.168.2 link#1 UC 00 fxp0 192.168.2.100:13:f7:26:42:69 UHLW2 108 fxp0 1188 192.168.2.138 00:50:fc:8c:f6:62 UHLW2 1469 fxp0143 192.168.2.255 ff:ff:ff:ff:ff:ff UHLWb 110044 fxp0 Internet6: Destination Gateway Flags Netif Expire ::1 ::1 UHL lo0 fe80::%lo0/64 fe80::1%lo0 U lo0 fe80::1%lo0 link#3 UHL lo0 ff01:3::/32 fe80::1%lo0 UC lo0 ff02::%lo0/32 fe80::1%lo0 UC lo0 office1adsl# ipfw show ipfw: getsockopt(IP_FW_GET): Protocol not available GatewayComp machine is: cassiopeia# uname -a FreeBSD cassiopeia.ronet 6.2-RELEASE-p7 FreeBSD 6.2-RELEASE-p7 #5: Wed Aug 29 14:18:01 EDT 2007 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/CASSIOPEIA i386 cassiopeia# ifconfig myk0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST mtu 1500 options=2bRXCSUM,TXCSUM,VLAN_MTU,JUMBO_MTU inet 192.168.0.1 netmask 0xff00 broadcast 192.168.0.255 ether 00:17:31:c3:d2:fe media: Ethernet autoselect (1000baseTX full-duplex) status: active rl0: flags=8843UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST mtu 1500 options=8VLAN_MTU inet 192.168.2.138 netmask 0xff00 broadcast 192.168.2.255 ether 00:50:fc:8c:f6:62 media: Ethernet autoselect (100baseTX full-duplex) status: active lo0: flags=8049UP,LOOPBACK,RUNNING,MULTICAST mtu 16384 inet 127.0.0.1 netmask 0xff00 cassiopeia# netstat -nr Routing tables Internet: DestinationGatewayFlagsRefs Use Netif Expire default192.168.2.1UGS 016241rl0 127.0.0.1 127.0.0.1 UH 0 4600lo0 192.168.0 link#1 UC 00 myk0 192.168.0.121 00:02:a5:23:f3:d0 UHLW1 153132 myk0121 192.168.0.126 00:02:a5:e5:19:39 UHLW194435 myk0581 192.168.0.128 00:02:a5:c8:65:f8 UHLW1 230797 myk0130 192.168.0.130 00:02:a5:e0:e1:9c UHLW1 124633 myk0306 192.168.0.131 00:02:a5:e0:c8:f4 UHLW1 258495 myk0165 192.168.0.132 00:02:a5:08:76:85 UHLW1 161701 myk0957 192.168.2 link#2 UC 00rl0 192.168.2.100:13:f7:26:42:69 UHLW2 30rl0 1127 192.168.2.114 00:50:8b:f7:30:24 UHLW2 1876rl0 72 192.168.2.138 00:50:fc:8c:f6:62 UHLW1 70lo0 cassiopeia# grep gateway /etc/rc.conf gateway_enable=YES cassiopeia# ipfw show 1 29588 12691049 allow ip from any to any 2 0 0 allow udp from any to any 3 0 0 allow tcp from any to any 001009512 297448 allow ip from any to any via lo0 00200 0 0 deny ip from any to 127.0.0.0/8 00300 0 0 deny ip from 127.0.0.0/8 to any 65000 2172178 1136712828 allow ip from any to any 65535 1330 deny ip from any to any cassiopeia# Now, here is what I try from LAN1 machine: office1adsl# ping 192.168.0.132 PING 192.168.0.132 (192.168.0.132): 56 data bytes ^C --- 192.168.0.132 ping statistics --- 4 packets transmitted, 0 packets received, 100% packet loss office1adsl# telnet 192.168.0.132 5900 Trying 192.168.0.132... ^C The same from the GatewayComp machine: cassiopeia# ping 192.168.0.132 PING 192.168.0.132
Re: routing question
Internet - [Hw Router] (LAN1: 192.168.2.0/24) - [ 192.168.2.138 GatewayComp 192.168.0.1 ] -- (LAN2: 192.168.0.0/24) I would like to access a computer from LAN1 to LAN2. Perform the following and post the results of: - ping from GatewayComp to pc on 0.0 network and a pc on 2.0 network - ping from pc on 2.0 network to 192.168.0.1 - ping from pc on 0.0 network to 192.168.2.138 - sysctl -a net.inet.ip.forwarding (on the GatewayComp) Steve ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: routing question
Steve Bertrand wrote: Internet - [Hw Router] (LAN1: 192.168.2.0/24) - [ 192.168.2.138 GatewayComp 192.168.0.1 ] -- (LAN2: 192.168.0.0/24) I would like to access a computer from LAN1 to LAN2. Perform the following and post the results of: - ping from GatewayComp to pc on 0.0 network and a pc on 2.0 network cassiopeia# ping 192.168.2.114 PING 192.168.2.114 (192.168.2.114): 56 data bytes 64 bytes from 192.168.2.114: icmp_seq=0 ttl=64 time=0.171 ms 64 bytes from 192.168.2.114: icmp_seq=1 ttl=64 time=0.184 ms 64 bytes from 192.168.2.114: icmp_seq=2 ttl=64 time=0.229 ms ^C --- 192.168.2.114 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max/stddev = 0.171/0.195/0.229/0.025 ms cassiopeia# ping 192.168.0.132 PING 192.168.0.132 (192.168.0.132): 56 data bytes 64 bytes from 192.168.0.132: icmp_seq=0 ttl=64 time=0.260 ms 64 bytes from 192.168.0.132: icmp_seq=1 ttl=64 time=0.235 ms 64 bytes from 192.168.0.132: icmp_seq=2 ttl=64 time=0.133 ms ^C --- 192.168.0.132 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max/stddev = 0.133/0.209/0.260/0.055 ms cassiopeia# - ping from pc on 2.0 network to 192.168.0.1 office1adsl# ping 192.168.0.1 PING 192.168.0.1 (192.168.0.1): 56 data bytes 64 bytes from 192.168.0.1: icmp_seq=0 ttl=64 time=0.270 ms 64 bytes from 192.168.0.1: icmp_seq=1 ttl=64 time=0.456 ms 64 bytes from 192.168.0.1: icmp_seq=2 ttl=64 time=0.178 ms ^C --- 192.168.0.1 ping statistics --- 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max/stddev = 0.178/0.301/0.456/0.116 ms - ping from pc on 0.0 network to 192.168.2.138 Well, I cannot do this from here. Those computers are X terminals, they do not run inetd nor sshd. I cannot login from here and I cannot leave now, but I can do it later if necessary. - sysctl -a net.inet.ip.forwarding (on the GatewayComp) cassiopeia# sysctl -a net.inet.ip.forwarding net.inet.ip.forwarding: 1 cassiopeia# I can answer the missed question in about an hour. Thanks, Laszlo ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
RE: CPu Questions
In a smaller environment (50 users) will processor selection make any real difference ? Website with some simple php scripting and mysql databases tied in . snip -- Network: 100Mb switched soon to be GB switched. - Disk: How much information are you pulling off of the disk? If you are doing complex queries on a 1GByte table, and server multi-megabyte files, and using an ATA66 drive without a RAID setup, that disk is probably going to be a slowdown for your system, and running 4x Quad Core Xeons (core-based, not netburst) overclocked to 5Ghz won't be noticably faster than a single Pentium 4 and 2.8Ghz. (OK, that might be a slight exaggeration). Memory is helpful in this case. Memory can help here too. -- Disk: Databases will be text lookup (think customer records, and a bug tracker). sorting records will possibly be on multiple keys. Data insertion will be VERY low volume. - CPU: How much is there in the way of calculations? Are the queries simple or complex? Are there a lot of loops (even a simple program with a lot of loops or recursion can be very CPU intensive)? --CPU: Don't expect queries to be super complex. Every once in a while there might be a more complex query, but meat and potatoes will be simple. snip Does that help answer your question? -- partially -Jim Stapleton --Darryl -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.516 / Virus Database: 269.19.6/1229 - Release Date: 1/17/2008 11:12 AM ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
CPu Questions
In a smaller environment (50 users) will processor selection make any real difference ? Website with some simple php scripting and mysql databases tied in . This is a very tough question to answer. If you already have a test environment, see how it works on your current hardware, and ascertain the locations of the bottlenecks. All of the following are possible in your situation: - Network: What is your server using? What is the average connection speed for the users. All the CPU speed in the world won't help you if you are attempting to pump out 50 100k pages a second on a 56k line. - Disk: How much information are you pulling off of the disk? If you are doing complex queries on a 1GByte table, and server multi-megabyte files, and using an ATA66 drive without a RAID setup, that disk is probably going to be a slowdown for your system, and running 4x Quad Core Xeons (core-based, not netburst) overclocked to 5Ghz won't be noticably faster than a single Pentium 4 and 2.8Ghz. (OK, that might be a slight exaggeration). Memory is helpful in this case. Memory can help here too. - CPU: How much is there in the way of calculations? Are the queries simple or complex? Are there a lot of loops (even a simple program with a lot of loops or recursion can be very CPU intensive)? If it is just serving up pages with fairly simple [insert web language of choice] code and SQL queries, the old K6-III 450Mhz I have for my home server is more than sufficient for a fairly large number of users. For simple timestamps and stylsheet spitting Scripting/SQL, that machine should be able to handle 50 users at a time without a problem. So, in the end, we can't answer your question without more information, but hopefully this will help you answer it. How fast will the machine need to pull data off the disk? How fast will it need to write the data? How much of the data can reside in memory (if it'll all fit in memory, then disk IO isn't nearly as big of a deal?), and how calculation intensive is your code? Does that help answer your question? -Jim Stapleton ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: external hard drive for mobile pc
On Wed, Jan 16, 2008 at 07:55:20PM -0800, Eric LaVoie wrote: Will FreeBSD work if I install it on an external hard drive, connected to a mobile PC via USB or FireWire, as a partition ( the two partitions being the mobile PC's internal Hardrive and this external hard drive which I am asking about.)? If the answer is yes: can you provide me with links to some documentation covering how I would create the partition on the external hard drive ( this partition would cover as much of this drive as possible with the internal one being used for Windows Vista.); and how I can burn bootable DVD-RWs from the .iso image files of FreeBSD which I downloaded from your site? Thank-you for your time, Eric Well, I have an external USB drive on my deskside machine and I don't see how it should be different for a mobile one, except you might not want to always carry the external drive with you. So, you will want to 'noauto' it in fstab, so it doesn't always try to mount it at boot time. Then you can mount it manually when you need it. You will most likely have to have it plugged in at boot time if you want to use it so the system knows to make a device for it. The process of creating slices and partitions/filesystems on an external drive are exactly the same as doing it on an internal drive. You should be able to use either fdisk/bsdlabel/newfs or have sysinstall do it for you. I had some trouble because the drive I had was larger than the slice size limit those things would handle on V 6.1 which I was using on that machine then. So, I had to use gparted to create 3 slices. Then I was able to do it in a standard manner - just as described in the handbook for adding drives and in numerous posts to the list - I have made several - and some FAQs in online publications. So, just a little searching for adding a disk will get you what you need. Remember, that in FreeBSD, primary divisions of the disk are called 'slices' and slices can be subdivided in to 'partitions'. Microsloth mangles those so that primary divisions are called primary partitions and subdivisions are called extended partitions but their extended partitions are not compatible with UNIX, although there are UNIX ways of talking to them. jerry __ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Some UTF-8 characters are not representable on FreeBSD7
Hello,
I noticed I couldn't use some characters with libncursesw: namely ⚑ ⚐
and ⏏.
I run into some tests and found that some characters were reported as
unprintable, while on Linux all was fine.
I found it extremely strange since those characters would show up in my
terminal (gnome-terminal) when I pasted them.
Here are the results of the test I ran on Linux and FreeBSD:
[EMAIL PROTECTED] ~]% uname -a ;./test
FreeBSD zod 7.0-BETA3 FreeBSD 7.0-BETA3 #0: Sun Dec 2 02:30:18 CET
2007 [EMAIL PROTECTED]:/media/externe/usr/src/sys/ZOD i386 Locale:
fr_FR.UTF-8 OK a : 1
OK ⚑ : 0
OK ö : 1
OK ↑ : 1
OK © : 1
OK ⚐ : 0
OK é : 1
OK ⏏ : 0
[EMAIL PROTECTED] ~]% uname -a ; LANG=fr_FR.ISO8859-15 ./test
FreeBSD zod 7.0-BETA3 FreeBSD 7.0-BETA3 #0: Sun Dec 2 02:30:18 CET
2007 [EMAIL PROTECTED]:/media/externe/usr/src/sys/ZOD i386 Locale:
fr_FR.ISO8859-15 OK a : 1
OK ⚑ : 1
OK ö : 1
OK ↑ : 1
OK © : 1
OK ⚐ : 1
OK é : 1
OK ⏏ : 1
16:03 [EMAIL PROTECTED] ~% uname -a ; ./test
Linux altair 2.6.22-2-amd64 #1 SMP Thu Aug 30 23:43:59 UTC 2007 x86_64
GNU/Linux Locale: fr_FR.UTF-8
OK a : 32768
OK ⚑ : 1
OK ö : 1
OK ↑ : 1
OK © : 1
OK ⚐ : 1
OK é : 1
OK ⏏ : 1
A value of 0 means unprintable, a positive value means printable (there
is a graphical representation).
And here is the test I used:
#include stdio.h
#include locale.h
#include stdlib.h
#include wchar.h
int main(void)
{
printf( Locale: %s\n, setlocale( LC_ALL, getenv( LANG ) ) );
#define MAX 8
const char const tab[MAX][6] = {
a, ⚑, ö, ↑, ©, ⚐, é, ⏏
};
int i;
wchar_t wc;
for( i = 0; i MAX; i++ )
{
printf(%s , mbtowc( wc, tab[i], 6 ) ? OK : KO );
printf(%s : %d\n, tab[i], iswgraph( wc ) );
}
return 0;
}
I suppose this is a bug in UTF-8 locale, I tested with different
$LANG finished by UTF-8 and the result was the same.
Am I right that an Unicode character should always have a graphical
representation in an UTF-8 locale ?
Thanks
--
Rafaël Carré
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Description: PGP signature
CPu Questions
Greetings, Looking to purchase a server that I will run Freebsd on. It will be a FAMP server. I am trying to decide buying used or new. Used server has (2) Xeon 2.8GHZ processors with 512K cache. New server has Dual Core Xeon 1.6Ghz with 4MB cache and 1066 front side bus. In a smaller environment (50 users) will processor selection make any real difference ? Website with some simple php scripting and mysql databases tied in . thanks for any advice, Darryl ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: how to be *nix programmer
On Wed, Jan 16, 2008 at 10:30:53PM -0500, Bob Hall wrote: On Wed, Jan 16, 2008 at 04:42:48PM -0500, Jerry McAllister wrote: On Wed, Jan 16, 2008 at 03:48:47PM -0500, Radheshyam Bhatt wrote: Hello People, How's it going?I am interested in to developing drivers for FreeBSD. How do I go about start learning program for that? What books resources I should look in to. I know C, and I am learning about processes, and system calls. Also where would I take my questions to if I don't get something and need help for something in system's programming... Please email me back.. Learning C and probably C++ and maybe some Assembly is good. After that, you might want to absorb the McKusic books: 'Design and Implementaiton of the (4.3 and) 4.4 BSD Operating System. Actually, McKusic's 'Design and Implementaion of the FreeBSD Operating System' might be more useful. It's based on FBSD 5.2, but it's still more up to date. Yes, I forgot he had a newer one out now. jerry ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: routing question
- ping from pc on 0.0 network to 192.168.2.138 Well, I cannot do this from here. Those computers are X terminals, they do not run inetd nor sshd. I cannot login from here and I cannot leave now, but I can do it later if necessary. - sysctl -a net.inet.ip.forwarding (on the GatewayComp) cassiopeia# sysctl -a net.inet.ip.forwarding net.inet.ip.forwarding: 1 cassiopeia# I can answer the missed question in about an hour. I'm sorry, not today. I'll try tomorrow. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Problems with hard drives
have you your BIOS? Javier Matos wrote: Hi, I was trying to install FreeBSD 6.0-CURRENT in my box but when I do it... Usually my hard drive make a strange noise... and the screen show DMA problems (ok, it may be the hard drive)... but... I change my hard drive and I take one more time problems with the hard drive... (ok, it may be the hard drive, the second hard drive that is broke... maybe)... I take a third hard drive and have the same problem... but... I don't know If is possible to have bad luck to put 3 hard drivers brokens... . Anyone is having problems with FreeBSD and Seagate hard drives? My system is so unstable and I don´t know how to solve the situation... hard drives hare Seagate 160 Gb SATA ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] - http://www.binaryz.com http://www.binaryz.com -- View this message in context: http://www.nabble.com/Problems-with-hard-drives-tp1457453p14921862.html Sent from the freebsd-questions mailing list archive at Nabble.com. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: RAID mirror really worked
Wojciech Puchar wrote: gmirror works too very good without any hardware :) CB Yes, but a hardware RAID works without the OS having to know about it. :-) ...and its failures? ;) :) for mirroring there is almost no CPU overhead so buying extra hardware doesn't make sense at all. not mentioning that most of such hardware are actually normal disk controllers with extra soft in BIOS. these are supported by ataraid driver. much better is to use gmirror so it will be completely portable. and - with gmirror you DO NOT have to mirror/stripe/concat whole drives. and that's what i do most often - mirror important data but store unimportant data without it. ... But with a raid controller mirror you do not have to send the data twice over the host bus. gmirror is awesome -- Sten Daniel Soersdal ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Gutman Method on Empty Space
Marc Silver wrote: Obviously it all comes down to how important the data is that you're removing, but a single write is not enough if the data needs to be disposed of 'securely'. Yep. The magnetic media retains a trace of everything that was recorded on it. If you have recorded over an old cassette tape, you may still be able to discern the original recording under the new recording. Gutmann method might be excessive but any software that uses it shows a seriousness about security. Plus I don't have to do all that writing. The computer does it for me. Wipe looks like a good start. Thanks for the tip. Later, Jason ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: MySQL Library upgrade issue
On Thu, Jan 17, 2008 at 11:00:46AM -0600, Jack L. Stone wrote: Am running FBSD-6.2p10 Recently, I upgraded MySQL-4.1.22 to 5.0.x and while things seem to work okay, I keep getting this warning in phpMyAdmin: Your PHP MySQL library version 4.1.22 differs from your MySQL server version 5.0.51. This may cause unpredictable behavior. Perhaps my manner of jumping the versions of MySQL...?? How do I get it to recognize the proper library version? Thanks for any help. The error stems from php5-mysql (or php4-mysql) being compiled against a different set of mysql libs. The easiest method for silencing the error is to recompile the php5-mysql (or php4-mysql) port. /usr/ports/databases/php5-mysql Cheers. (^_^) Happy trails, Jack L. Stone System Admin Sage-american ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- Paul Procacci Manager, UNIX Support DataPipe Managed Global IT Services [EMAIL PROTECTED] 1.201.792.4847 (international) 1.888.749.5821 (toll free) ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: VFS KPI was Re: [OpenAFS-devel] Re: AFS ... or equivalent ...
Rick Macklem wrote: On Wed, 16 Jan 2008, Robert Watson wrote: [good stuff snipped] Right now we maintain a relatively stable VM/VFS KPI withing a major release (i.e, FreeBSD 6.0 - 6.1 - 6.2 - 6.3), but see fairly significant changes between major releases (5.x - 6.x - 7.x, etc). I expect to see further changes in VFS for 8.x (and some of the locking-related ones have already started going in). This is loosely related to both the OpenAFS thread and the Mac OS X ZFS port thread, so I thought I'd ask... Has anyone considered trying to bring the FreeBSD VFS KPI (and others, for that matter) closed to the Darwin/Mac OS X ones? The Apple folks made quite dramatic changes to their VFS when going from Panther (very FreeBSD like) to Tiger, but seemed to have stabilized, at least for Leopard. It just seems that using the Mac OS X KPIs might leverage some work being done on both sides? (I don't know if there is an OpenAFS port to Mac OS X or interest in one, but I would think there would be a use for one, if it existed?) Although I'm far from an expert on the Mac OS X VFS (when I ported to it, I just cribbed the code and it worked:-), it seems that they pretty well got rid of the concept of a vnode-lock. If the underlying file system isn't SMP safe, it can put a lock on the subsystem at the VFS call. (I think it optionally does a global lock or a uses an smp lock in the vnode, but don't quote me on this. My code currently runs with the thread-safe flag false in the vfs_conf structure entry, which enables the automagic locking.) Both Solaris and OSX seem to have found the path out of the VFS locking woods, and it would indeed be really nice if FreeBSD could follow suit. You're not the first to suggest the vnode locking move out of VFS and into the filesystems. I think that the work it would take to adapt the existing filesystems to this design would be far less than the ongoing work by everyone to fight the old design (both in FreeBSD proper and in companies that do their own custom filesystems in FreeBSD), but it does come at a cost of making things like nullfs much harder, if not nearly impossible. I wish I had time to work on something like this, but I encourage others to look into it and experiment. Scott ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
MySQL Library upgrade issue
Am running FBSD-6.2p10 Recently, I upgraded MySQL-4.1.22 to 5.0.x and while things seem to work okay, I keep getting this warning in phpMyAdmin: Your PHP MySQL library version 4.1.22 differs from your MySQL server version 5.0.51. This may cause unpredictable behavior. Perhaps my manner of jumping the versions of MySQL...?? How do I get it to recognize the proper library version? Thanks for any help. (^_^) Happy trails, Jack L. Stone System Admin Sage-american ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: RAID mirror really worked
... But with a raid controller mirror you do not have to send the data twice over the host bus. please reread what i said. most todays RAID controllers are actually normal controllers with BIOS with software support. these are supported with ataraid. there is nothing done by hardware gmirror is awesome -- Sten Daniel Soersdal ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Support for Intel RAID
Hello, Anyone know if Intel 5000V chipset with ESB2 SATA 3.0 onboard RAID is supported on FreeBSD 6.2/6.3/7 ? Last time I've checked on 6.1 it didn't work in RAID mode. Thanks, Tamouh Hakmi ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: lockfile -- posix compliant?
* Erik Trulsson [EMAIL PROTECTED] [2008-01-17 02:25:11+0100]: On Wed, Jan 16, 2008 at 08:03:29PM -0500, N.J. Thomas wrote: Can someone tell me if lockfile(1) is a POSIX-defined utility? Considering that lockfile(1) is usually installed as part of procmail Ah, gotcha. Coincidently, the RHEL 5, OpenBSD 4.1, and FreeBSD 6.2 boxes that I tested it on all happened to have procmail installed and I assumed that lockfile(1) was a POSIX util. Thanks for the heads up. Thomas -- N.J. Thomas [EMAIL PROTECTED] Etiamsi occiderit me, in ipso sperabo ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: FreeBSD Stable
On Jan 17, 2008, at 11:08 AM, Sean Hulbert wrote: I am trying to download FreeBSD stable. All I get is a cvsups file. I need to download the ISO to my winbox then burn it to CD. Is there a program or link to the direct ISO that will allow me to download it. See http://www.freebsd.org/where.html ...right now, the following is the 32-bit x86 version of 6-STABLE that is probably going to become 6.3-RELEASE shortly: ftp://ftp.FreeBSD.org/pub/FreeBSD/releases/i386/ISO-IMAGES/6.3/ Regards, -- -Chuck ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
FreeBSD Stable
Hello I am trying to download FreeBSD stable. All I get is a cvsups file. I need to download the ISO to my winbox then burn it to CD. Is there a program or link to the direct ISO that will allow me to download it. Thank You Sean Hulbert Work Ph:925.227.8500 x136 Cell Email: [EMAIL PROTECTED] Cell: 209.814.2276 AIM: Navbase1 Yahoo: Ghosthunter007 www.toolwire.com CONFIDENTIALITY NOTICE: This communication with its contents may contain confidential and/or legally privileged information. It is solely for the use of the intended recipient(s). Unauthorized interception, review, use or disclosure is prohibited and may violate applicable laws including the Electronic Communications Privacy Act. If you are not the intended recipient, please contact the sender and destroy all copies of the communication. igitur qui desiderat pacem, praeparet bellum!!! Epitoma Rei Militaris ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
FreeBSD CDs don't boot with my Sony Vaio BGN-BX397XP
Hello, I'have a Sony Vaio BGN-BX397XP. I'have Windows XP and Mandriva installed, but I want use FreeBSD. I cant boot with any CD, the system displays rapidly lines on the screen incomprehensible, I have a picture for that. I'have test 6.2, 6.3 and 7.0 beta 4 CDs You can see on back the model SONY PCG-9X1M. You can have a description of my computer on Sony web site : http://support.vaio.sony.co.uk/login/login.asp?site=voe_en_GB_cons Product Code : 28245051 Serial Number : 5000578 Thank you for your ideas, Philippe ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: db performance
In response to Robert Fitzpatrick [EMAIL PROTECTED]: We have several postfix transport gateways on different networks all working with local amavisd-maia+SA using a remote postgresql backend at one location. I am getting delays in the queues on a gateway server at a remote site since we added more memory to the db server. After seeing the issues of SA TIMED OUT in the logs, seems this was happening prior to the upgrade, but never to the extent, I guess, to delay much mail. Queues on a gateway of the same network as the db server working fine, but messages with the timeouts differ from one server to another. After reading tuning, it suggests the SWAP should be double RAM. According to dmesg... real memory = 3220635648 (3071 MB) avail memory = 3150565376 (3004 MB) we have 3GB of RAM available with actually 4GB physical RAM installed? Anyway, the SWAP is only 2GB, even with the average usage shown here, will increasing SWAP to 6-8GB help? last pid: 49828; load averages: 0.23, 0.21, 0.18up 8+18:33:08 15:42:23 184 processes: 5 running, 158 sleeping, 21 waiting CPU states: 2.6% user, 0.0% nice, 1.0% system, 0.0% interrupt, 96.4% idle Mem: 446M Active, 1646M Inact, 236M Wired, 138M Cache, 112M Buf, 30M Free Swap: 2048M Total, 164K Used, 2048M Free Adding swap is unlikely to help you, as you're not really using much memory. I also have assumed in the past that db performance could be better if I get off the system RAID-5 and put it on 1+0? The system has 4 SATA drives. That will speed things up if IO is your bottleneck, but you've not demonstrated that. Which machine in this system is the bottleneck? Are the Amavis machines timing out, or is the PostgreSQL server too slow? If I understand your description, it sounds like a network problem to me ... i.e., machines not on the same gateway as the PG server are experience slow network response (or dropped packets?) that's causing amavis to time out while trying to talk to PG. I would suggest investigating there first. -- Bill Moran http://www.potentialtech.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: recomendations for webb shop software
nice solution found, thx anyway. -- /Peo -- - PGP signed/encrypted emails is prefered - -- [novice about this? ~ visit: www.gnupg.org] signature.asc Description: This is a digitally signed message part
Re: db performance
After reading tuning, it suggests the SWAP should be double RAM. According to dmesg... installing database on RAID-5 or asking if to add swap (when almost none is used)? what is more stupid? whould we vote? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: db performance
On Thu, 2008-01-17 at 15:53 -0500, Bill Moran wrote: In response to Robert Fitzpatrick [EMAIL PROTECTED]: I also have assumed in the past that db performance could be better if I get off the system RAID-5 and put it on 1+0? The system has 4 SATA drives. That will speed things up if IO is your bottleneck, but you've not demonstrated that. Which machine in this system is the bottleneck? Are the Amavis machines timing out, or is the PostgreSQL server too slow? If I understand your description, it sounds like a network problem to me ... i.e., machines not on the same gateway as the PG server are experience slow network response (or dropped packets?) that's causing amavis to time out while trying to talk to PG. I would suggest investigating there first. The SA timeouts I'm finding on all the servers. Even the db server that runs it's own amavisd process for backup purposes and some minor domains just to make sure it is there and working. This is why I think you're right, the pgsql db is too slow. Would I possibly see dramatic differences in speed with the RAID switch? -- Robert ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
VFS KPI was Re: [OpenAFS-devel] Re: AFS ... or equivalent ...
On Wed, 16 Jan 2008, Robert Watson wrote: [good stuff snipped] Right now we maintain a relatively stable VM/VFS KPI withing a major release (i.e, FreeBSD 6.0 - 6.1 - 6.2 - 6.3), but see fairly significant changes between major releases (5.x - 6.x - 7.x, etc). I expect to see further changes in VFS for 8.x (and some of the locking-related ones have already started going in). This is loosely related to both the OpenAFS thread and the Mac OS X ZFS port thread, so I thought I'd ask... Has anyone considered trying to bring the FreeBSD VFS KPI (and others, for that matter) closed to the Darwin/Mac OS X ones? The Apple folks made quite dramatic changes to their VFS when going from Panther (very FreeBSD like) to Tiger, but seemed to have stabilized, at least for Leopard. It just seems that using the Mac OS X KPIs might leverage some work being done on both sides? (I don't know if there is an OpenAFS port to Mac OS X or interest in one, but I would think there would be a use for one, if it existed?) Although I'm far from an expert on the Mac OS X VFS (when I ported to it, I just cribbed the code and it worked:-), it seems that they pretty well got rid of the concept of a vnode-lock. If the underlying file system isn't SMP safe, it can put a lock on the subsystem at the VFS call. (I think it optionally does a global lock or a uses an smp lock in the vnode, but don't quote me on this. My code currently runs with the thread-safe flag false in the vfs_conf structure entry, which enables the automagic locking.) Just a thought, rick ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: db performance
In response to Robert Fitzpatrick [EMAIL PROTECTED]: On Thu, 2008-01-17 at 15:53 -0500, Bill Moran wrote: In response to Robert Fitzpatrick [EMAIL PROTECTED]: I also have assumed in the past that db performance could be better if I get off the system RAID-5 and put it on 1+0? The system has 4 SATA drives. That will speed things up if IO is your bottleneck, but you've not demonstrated that. Which machine in this system is the bottleneck? Are the Amavis machines timing out, or is the PostgreSQL server too slow? If I understand your description, it sounds like a network problem to me ... i.e., machines not on the same gateway as the PG server are experience slow network response (or dropped packets?) that's causing amavis to time out while trying to talk to PG. I would suggest investigating there first. The SA timeouts I'm finding on all the servers. Even the db server that runs it's own amavisd process for backup purposes and some minor domains just to make sure it is there and working. This is why I think you're right, the pgsql db is too slow. Would I possibly see dramatic differences in speed with the RAID switch? You're not even close to proposing a solution yet. Take a deep breath and take a little time to understand the problem before you start throwing hardware at it. I don't know anything about amavisd's usage of databases. If it's doing a lot of small writes, then it's likely that getting off RAID 5 will make a marked difference. You need to investigate more, though. Otherwise you're just randomly flipping switches. Watching top on the PG machine, how much RAM is in use? What is the average CPU usage when you see timeouts? Run top -m io in another terminal and see if a lot of IO is happening on the part of PostgreSQL ... is it reads or writes? And what tuning have you done to PostgreSQL? PG doesn't perform well without tuning. Install the pg_buffercache addon and see if you've got enough shared_buffers to get decent performance out of it. Are you running vacuum and analyze frequently? Turn on query timing and watch the logs to see what queries are taking up time. Read the following links and follow the advice therein: http://www.powerpostgresql.com/PerfList http://www.revsys.com/writings/postgresql-performance.html -- Bill Moran http://www.potentialtech.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: db performance
On Thu, 2008-01-17 at 22:19 +0100, Ivan Voras wrote: Robert Fitzpatrick wrote: real memory = 3220635648 (3071 MB) avail memory = 3150565376 (3004 MB) we have 3GB of RAM available with actually 4GB physical RAM installed? If you're using a 32-bit (i386) kernel you need PAE. Or switch to 64-bit (amd64). Yes, this is something else I've found I need to do to these i386 servers since we upgraded the memory, I guess I'll get PAE in the kernel and switch the RAID, should provide quite a difference, yes? Some people have suggested the PAE drivers may not be stable with my hardware. -- Robert ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
db performance
We have several postfix transport gateways on different networks all working with local amavisd-maia+SA using a remote postgresql backend at one location. I am getting delays in the queues on a gateway server at a remote site since we added more memory to the db server. After seeing the issues of SA TIMED OUT in the logs, seems this was happening prior to the upgrade, but never to the extent, I guess, to delay much mail. Queues on a gateway of the same network as the db server working fine, but messages with the timeouts differ from one server to another. After reading tuning, it suggests the SWAP should be double RAM. According to dmesg... real memory = 3220635648 (3071 MB) avail memory = 3150565376 (3004 MB) we have 3GB of RAM available with actually 4GB physical RAM installed? Anyway, the SWAP is only 2GB, even with the average usage shown here, will increasing SWAP to 6-8GB help? last pid: 49828; load averages: 0.23, 0.21, 0.18up 8+18:33:08 15:42:23 184 processes: 5 running, 158 sleeping, 21 waiting CPU states: 2.6% user, 0.0% nice, 1.0% system, 0.0% interrupt, 96.4% idle Mem: 446M Active, 1646M Inact, 236M Wired, 138M Cache, 112M Buf, 30M Free Swap: 2048M Total, 164K Used, 2048M Free I also have assumed in the past that db performance could be better if I get off the system RAID-5 and put it on 1+0? The system has 4 SATA drives. All servers running FreeBSD 6.2 and latest ports of postfix+amavisd-maia +SA+ClamAV. Thanks for any input. -- Robert ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: db performance
Robert Fitzpatrick wrote: real memory = 3220635648 (3071 MB) avail memory = 3150565376 (3004 MB) we have 3GB of RAM available with actually 4GB physical RAM installed? If you're using a 32-bit (i386) kernel you need PAE. Or switch to 64-bit (amd64). signature.asc Description: OpenPGP digital signature
Re: db performance
In response to Robert Fitzpatrick [EMAIL PROTECTED]: On Thu, 2008-01-17 at 22:19 +0100, Ivan Voras wrote: Robert Fitzpatrick wrote: real memory = 3220635648 (3071 MB) avail memory = 3150565376 (3004 MB) we have 3GB of RAM available with actually 4GB physical RAM installed? If you're using a 32-bit (i386) kernel you need PAE. Or switch to 64-bit (amd64). Yes, this is something else I've found I need to do to these i386 servers since we upgraded the memory, I guess I'll get PAE in the kernel and switch the RAID, should provide quite a difference, yes? Some people have suggested the PAE drivers may not be stable with my hardware. I don't recommend PAE simply because amd64 works so well and PAE is a holdover hack. That being said, if your hardware is i386 only, you're stuck with PAE. -- Bill Moran http://www.potentialtech.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: db performance
On Thu, 2008-01-17 at 16:34 -0500, Bill Moran wrote: In response to Robert Fitzpatrick [EMAIL PROTECTED]: I don't know anything about amavisd's usage of databases. If it's doing a lot of small writes, then it's likely that getting off RAID 5 will make a marked difference. I believe this is the case with SA learning on and auto-whitelisting. Disabling things like that are my last resort. You need to investigate more, though. Otherwise you're just randomly flipping switches. I really appreciate the pointers! Watching top on the PG machine, how much RAM is in use? What is the average CPU usage when you see timeouts? Run top -m io in another terminal and see if a lot of IO is happening on the part of PostgreSQL ... is it reads or writes? I see mainly postgres in the top 8-10 with mainly WRITEs of mainly less than 100 regularly, mostly less than 30 WRITES at a time. And what tuning have you done to PostgreSQL? PG doesn't perform well without tuning. Install the pg_buffercache addon and see if you've got enough shared_buffers to get decent performance out of it. Are you running vacuum and analyze frequently? Turn on query timing and watch the logs to see what queries are taking up time. Read the following links and follow the advice therein: http://www.powerpostgresql.com/PerfList http://www.revsys.com/writings/postgresql-performance.html This is what I have setup now, thanks for the links, I'll re-check my tuning... mx1# cat /etc/sysctl.conf kern.ipc.shm_use_phys=1 kern.ipc.shmmax=1073741824 kern.ipc.shmall=262144 kern.ipc.semmsl=512 kern.ipc.semmap=256 I'm sure some of my tuning could use some help, like the shm_use_phys, maybe this is why my swap is not being used much? This is what I've changed from defaults in postgresql.conf... max_connections = 250 shared_buffers = 500MB work_mem = 64MB # min 64kB maintenance_work_mem = 256MB# min 1MB max_fsm_pages = 256000 -- Robert ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: db performance
On Thu, Jan 17, 2008 at 10:17:09PM +0100, Wojciech Puchar wrote: After reading tuning, it suggests the SWAP should be double RAM. According to dmesg... installing database on RAID-5 or asking if to add swap (when almost none is used)? what is more stupid? whould we vote? That is not a very helpful response. jerry ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
ftp setup - giotissl - ASAP - SOS
hello, I just bought a dedicated server (unmanaged server) Can you help me? I want to install the ftp. Can you help me step by step ? I can connect to my server via SSH and I have installed the cpanel/whm. Please reply me as soon as if its possible. Thank you, GiotisSL ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: db performance
On Thu, 2008-01-17 at 22:17 +0100, Wojciech Puchar wrote: After reading tuning, it suggests the SWAP should be double RAM. According to dmesg... installing database on RAID-5 or asking if to add swap (when almost none is used)? what is more stupid? whould we vote? That was my whole point of showing you the low usage. I take that as a yes, RAID 1+0 would provide a dramatic difference in speed, thanks! -- Robert ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: db performance
is used)? what is more stupid? whould we vote? That was my whole point of showing you the low usage. I take that as a yes, RAID 1+0 would provide a dramatic difference in speed, thanks! the only adventage of RAID-5 is less wasted space than RAID-1. one and the only adventage. write performance is terrible on small writes - exactly what happens on database usage. with today sizes of disks more wasted space doesn't make much a problem, as i don't think your database have hundreds of gigabytes. did you look how much disks (no matter what RAID or just devices) are actually used?! use systat ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: ftp setup - giotissl - ASAP - SOS
On Thu, 2008-01-17 at 23:11 +0200, Giotis Eugen wrote: hello, I just bought a dedicated server (unmanaged server) Can you help me? I want to install the ftp. Can you help me step by step ? I can connect to my server via SSH and I have installed the cpanel/whm. http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/network-ftp.html ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
RE: Gutman Method on Empty Space
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jason C. Wells Sent: Thursday, 17 January 2008 9:10 p.m. To: freebsd general questions Subject: Gutman Method on Empty Space Can anyone recommend a utility for the secure overwriting of unused disc space? split -b 200m /dev/random randomdata ; sync rm randomdata* Run as many times as your paranoia factor requires on your file system. Gutman suggests in his own writings that overwriting with random data makes the most sense with modern disks. Run as root to extend the writes past the soft filesystem limit. Use whatever split parameters you fancy for the file sizes. The srm port has fancy features for file/directory deletions. Cheers, Brent ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: db performance
On Thu, 2008-01-17 at 22:49 +0100, Wojciech Puchar wrote: is used)? what is more stupid? whould we vote? That was my whole point of showing you the low usage. I take that as a yes, RAID 1+0 would provide a dramatic difference in speed, thanks! the only adventage of RAID-5 is less wasted space than RAID-1. one and the only adventage. write performance is terrible on small writes - exactly what happens on database usage. with today sizes of disks more wasted space doesn't make much a problem, as i don't think your database have hundreds of gigabytes. did you look how much disks (no matter what RAID or just devices) are actually used?! use systat Using 'systat -iostat' it shows mostly idle with 25-70 MB/s on the aacd0 array. Most of time above 50. Thanks for the help! -- Robert ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
disk recovery tools...
Guys, moving disks from an old server to a new one I suffered from a moment of brain fade last night and newfs'ed a drive I shouldn't have. One of that new crop that is so large you won't have an adequate backup for it... :( So, just wondering if there are any disk recovery tools that might be able to find whats left of the files or some portion thereof. My guess is that things like the indirect blocks live on in the data area and some portion of what was there might be recoverable to a greater or lesser degree... Thanks in advance, Enno. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: db performance
use systat Using 'systat -iostat' it shows mostly idle with 25-70 MB/s on the aacd0 array. Most of time above 50. Thanks for the help! -- Robert 70MB/s can't be mostly idle. or you meant CPU mostly idle. changing to RAID-not5 will help. seeking why disk traffic is so high - will help even more. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Gutman Method on Empty Space
Can anyone recommend a utility for the secure overwriting of unused disc space? split -b 200m /dev/random randomdata ; sync rm randomdata* Run as many times as your paranoia factor requires on your file system. Gutman suggests in his own writings that overwriting with random data makes the most sense with modern disks. Run as root to extend the writes past the soft filesystem limit. Use whatever split parameters you fancy for the file sizes. The srm port has fancy features for file/directory deletions. If I didn't misunderstand your question. If you're trying to write bits onto your disk so that nobody could recover data from it, there is a very simple way to blank out either YOUR WHOLE HARD DRIVE or AN ENTIRE SLICE ON YOUR HARD DRIVE. Using the `dd' utility you can write zero bits to an entire slice of your hard drive (or to the whole hard drive): dd if=/dev/zero of=/dev/disk-or-slice-ID Don't do this unless you want to lose all data on a slice or hard drive. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: disk recovery tools...
From professional experience as a data recovery technician, I can tell you that ufs2 drives are among the hardest to recover from after a format. So far the best applications that I have found for recovering data in a situation like this are testdisk and Easy Recovery Professional (by Kroll Ontrack). Obviously the ideal situation would be to get your data back in its original form, so I would try testdisk first. If that fails, however, you are going to have to use ERP (which cost money) to do a RAW recovery. Please note, however, that if you perform a RAW recovery,you will NOT recover the intact filestructure, but instead, a set of folders with your files, and the files will be renamed 'Fil001' followed by the extension. I hope this helps, Cypheros On 1/17/08, Enno Davids [EMAIL PROTECTED] wrote: Guys, moving disks from an old server to a new one I suffered from a moment of brain fade last night and newfs'ed a drive I shouldn't have. One of that new crop that is so large you won't have an adequate backup for it... :( So, just wondering if there are any disk recovery tools that might be able to find whats left of the files or some portion thereof. My guess is that things like the indirect blocks live on in the data area and some portion of what was there might be recoverable to a greater or lesser degree... Thanks in advance, Enno. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
ssh tunnel question
Hi, I installed freeBSD 6.3RC2 on my computer. SSH deamon is installed and working. On my linux computer I can connect easily ssh -D 8080 myserver.com and use it as SOCKS for firefox as proxy server. But on windows I cant using putty, I can make it local like -L in linux but i cant make it dynamic, i tried it but all i get is the proxy server is refusing connections in firefox. It works on all linux pcs but not windows, same error msg. I disabled firewall and still not working. wats wrong with it? [EMAIL PROTECTED] SDF Public Access UNIX System - http://sdf.lonestar.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: ssh tunnel question
On Friday 18 January 2008 04:52:44 Juan Ortega wrote: Hi, I installed freeBSD 6.3RC2 on my computer. SSH deamon is installed and working. On my linux computer I can connect easily ssh -D 8080 myserver.com and use it as SOCKS for firefox as proxy server. But on windows I cant using putty, I can make it local like -L in linux but i cant make it dynamic, i tried it but all i get is the proxy server is refusing connections in firefox. It works on all linux pcs but not windows, same error msg. I disabled firewall and still not working. wats wrong with it? In Firefox, are you using SOCKS4 when connecting? Try SOCKS4. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
6.3 REL or not
Ok I was wondering around, Then found the 6.3 ISO's are these the real 6.3 release's ? Can I use these ISO's as the 6.3 release CD's ? I am asking because I never saw a word of 6.3 REL being ready. Thanks ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: 6.3 REL or not
On Thu, Jan 17, 2008 at 08:56:32PM -0800, Jon wrote: Ok I was wondering around, Then found the 6.3 ISO's are these the real 6.3 release's ? Maybe. Unless some last second problem is found in which case the ISO's will be rebuilt. Can I use these ISO's as the 6.3 release CD's ? Can? Yes. Should? Maybe not. I am asking because I never saw a word of 6.3 REL being ready. Assume that 6.3 is not finished until the official announcement has gone out. -- Insert your favourite quote here. Erik Trulsson [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
