Re: [SLUG] My father wants an inexpensive computer
Stephen Black wrote: My fathter wants an inexpensive computer which will connect to an ADSL broadband connection, He also wants to do video editing so it has to have some reasonable specs. Where can I get an inexpensive (I think it will have to be Linux) computer? Or how can I get some broadband connectivity on 8 year old x86 architecture? (even if it's not Linux Compatable) See your local computer store for an inexpensive computer. -- Simon Males [EMAIL PROTECTED] -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] My father wants an inexpensive computer
On Tue, December 5, 2006 6:17 pm, Ben wrote: On 12/5/06, Stephen Black [EMAIL PROTECTED] wrote: Editing in HD will require some grunt, and dual monitors are preferable. I priced up a decent system for a friend a while back - 3 HDDs, 2GB RAM, dual monitors, UPS, decent other bits for $2.5K For video editing you will really want firewire. This can be added for $20-30 to most computers, but would probably be faster if you got a computer with it already on the motherboard. Video card just needs to support dual monitors and TV out. All it has to do is process the overlay, so it can be pretty minimal in other aspects $50-100 should suffice. Make sure you get hard drives with large buffers and get as many as you can afford (up to 4 is a good idea). wouldn't a MacMini be the go for basic video editing ?? -- Voytek -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Colour Syncing a printer
Can anyone point me at a good resource for learning how to colour sync a printer? I'm trying to set up Ubuntu/Gimp/Epson 2400 and my present knowledge is close to zero. Google isn't helping a whole lot. Thanks... David. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Linux for Seniors
This one time, at band camp, L G Bradford wrote: Although I have written programs in old DOS formats and built computers the hard way, back in the 80s, I still have not been able to come to grips with Linux. I had a quick go at Knoppix recently, which again prompted me to consider Linux once more. I would strongly recommend trying Ubuntu rather than Knoppix. Knoppix has great geek cachet, and works well for its purpose. They were one of the first distributions to really nail hardware detection, and that was a vast improvement, but their methods have now been copied elsewhere. Ubuntu is really aiming to take Linux mainstream. They've attacked a lot of the big usability issues and one of its advantages, particularly for a group such as seniors, is the minimal number of programs installed by default. For most user groups I find the less options the better. Having two icons on the desktop is a good way to go: web browser and games. Reduce the options and things become a lot easier. Power users still have the option of installing more applications and toying with options. How do the residents get Internet access? Does the village provide some kind of access? Would there be one of your members in the general Castle Hill area I could make contact with for advice? I know all about that retirement village as the (private) bus to Castle Hill winds through it going the lengthy way from Pennant Hills Station. I used to catch that bus every week, many years ago. I'm afraid it's a hell of a long way for me, but you're likely to find some others who might be closer and able to help. -- Rev Simon Rumble [EMAIL PROTECTED] www.rumble.net The idea that Bill Gates has appeared like a knight in shining armour to lead all customers out of a mire of technological chaos neatly ignores the fact that it was he who, by peddling second-rate technology, led them into it in the first place. - Douglas Adams on Windows '95. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Linux for Seniors
Hi Lynton There is a thread on the SLUG mailing list about supporting new users where various options and opinions were canvassed at the moment. Re: [SLUG] ethical question - teach beginner doze or linux? From the SLUG mail archives, here is where the thread starts and you can follow it through with next in thread link at the bottom of page. http://lists.slug.org.au/archives/slug/2006/12/msg00026.html. Ken L G Bradford wrote: Sydney Linux User Group, We need some advice and perhaps help! Our Computer club for seniors is based in the Anglican Retirement Villages at Castle Hill with about 200 members at this site. We often refurbish old computers for those of limited means and have considered using a Linux OS and Open Source applications to reduce the cost. I am personally a great fan of OpenOffice and Gimp (MS Windows versions). Over several years I have tried to come to grips with various Linux distros, bought several copious volumes and distros of Mandrake, Debian and others. Although I have written programs in old DOS formats and built computers the hard way, back in the 80s, I still have not been able to come to grips with Linux. I had a quick go at Knoppix recently, which again prompted me to consider Linux once more. Would there be one of your members in the general Castle Hill area I could make contact with for advice? Lynton Bradford Ph 20 9680 9637 Mob 0404 466 461 9 Edgewood Avenue, Warrina Village, Castle Hill 2154 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Linux for Seniors
Hi Lynton, quote who=L G Bradford Would there be one of your members in the general Castle Hill area I could make contact with for advice? Please contact me on 0400 966 453 (my phone number is public knowledge anyway :) and perhaps I'll be able to help you or assist in finding help. Cheers, Pia -- Linux Australia http://linux.org.au/ If you have any trouble sounding condescending, find a Unix user to show you how it's done. - Scott Adams -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Colour Syncing a printer
This one time, at band camp, david wrote: Can anyone point me at a good resource for learning how to colour sync a printer? Don't know any resources but I suspect what you want to search for is the term color calibration (yes, with the American spelling). If I understand you correctly, you want to be able to get out of your printer what you see on the screen. GIMP isn't that great at this, I must point out. The problem you've got is that your monitor uses the RGB colourspace and your printer CMYK, which are vastly different colour models. http://en.wikipedia.org/wiki/RGB http://en.wikipedia.org/wiki/CMYK http://en.wikipedia.org/wiki/Color_management -- Rev Simon Rumble [EMAIL PROTECTED] www.rumble.net Women who seek to be equal with men lack ambition. - Timothy Leary -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] cloning/replacing hardrive
I have a RH system that is running out of disk space faster than I can figure out what can I delete to gain space, in the short term, I just need to give it more hardrive space, what are my best options to clone the old 20GB IDE drive to a new 80GB IDE drive ? can I clone a running system ? -- Voytek -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] cloning/replacing hardrive
On Wed, 6 Dec 2006 10:02:02 +1100 (EST) Voytek Eymont [EMAIL PROTECTED] wrote: I have a RH system that is running out of disk space faster than I can figure out what can I delete to gain space, in the short term, I just need to give it more hardrive space, what are my best options to clone the old 20GB IDE drive to a new 80GB IDE drive ? can I clone a running system ? Voytek, Do you really need to clone the whole system? I had a similar problem recently - installed a new disk and moved the /home partition to it following instructions: http://www.psychocats.net/ubuntu/separatehome It solved my problem at least in the medium term. Alan -- Voytek -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Alan L Tyreehttp://www2.austlii.edu.au/~alan Tel: +61 2 4782 2670Mobile: +61 427 486 206 Fax: +61 2 4782 7092FWD: 615662 -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] cloning/replacing hardrive
On Wed, December 6, 2006 10:27 am, Alan L Tyree wrote: On Wed, 6 Dec 2006 10:02:02 +1100 (EST) Voytek Eymont [EMAIL PROTECTED] wrote: Do you really need to clone the whole system? I had a similar problem recently - installed a new disk and moved the /home partition to it following instructions: http://www.psychocats.net/ubuntu/separatehome thanks, Alan no, I've used 'clone' as a generic term for 'recreating current system', I'd rather copy each partition from old to new, DaZZa suggested 'dd' (which I guess is the 'copy' that I want) I'll review the link, thanks at this point, I'm on a learning/research quest (my biggest current 'sticking point' is, will the the BIOS in P3 support the 80GB...?) I'm currently debating the two options like: - replace the whole 20GB with 80GB ? - add 80GB as second drive, and, mount 'home' and whatever to second drive ? I guess the 2nd option is easier to achieve -- Voytek -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] My father wants an inexpensive computer
On Wednesday 06 December 2006 06:56, [EMAIL PROTECTED] wrote: My fathter wants an inexpensive computer which will connect to an ADSL broadband connection, He also wants to do video editing so it has to have some reasonable specs. Where can I get an inexpensive (I think it will have to be Linux) computer? Or how can I get some broadband connectivity on 8 year old x86 architecture? (even if it's not Linux Compatable) I've done this 3 times, once in the UK (from here) so I'm really certain about my opinion: Get an ADSL ethernet router, with firewall and dhcp Do anything with the computer (but use dhcp) I made a small desktop icon called 'totigger' for each that portforwards 22 on their machine at some dynamic IP to me on 1200 (whatever) I can then ssh -p 1200 localhost and arrive on their machine, for any support issues (of course mine are all linux). Trying to use USB modems, maintain the firwall on the remote machine etc is machoism James -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
[EMAIL PROTECTED] wrote: I've done this 3 times, once in the UK (from here) so I'm really certain about my opinion: Get an ADSL ethernet router, with firewall and dhcp Do anything with the computer (but use dhcp) For a long time, I had wanted to ask: why use DHCP in home networks when one can use STATIC ip (using private network ip addresses)? Is it not that DHCP is mainly used in situations with the following combinations of circumstances ? 1. Networks with large numbers of workstations that are not permanently on line (e.g. customers-workstations-of ISP that connect only when required). 3. There are more workstations (customers) than there are public ip numbers available in an ISP. 4. Prevent customers of ISP from running WWW(FTP,MTA,etc) sites without paying for fixed ip number(s). Just curious to know, why. O Plameras -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
quote who=O Plameras For a long time, I had wanted to ask: why use DHCP in home networks when one can use STATIC ip (using private network ip addresses)? Just curious to know, why. Because DHCP makes your network just work and doesn't inflict the need to understand IP addresses and subnets on unsuspecting users. Hooray for little home network routers that do all of this out of the box. No mucking around. - Jeff -- linux.conf.au 2007: Sydney, Australia http://lca2007.linux.org.au/ Broken hearts rarely come with Some Assembly Required stickers. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
I would like to add my support to Jeffs comments. There may be a few minor downsides to dhcp, but the advantages of plug and play home networks overwhelmingly outweigh the alternative. Some ip routers (only dlink that i have seen) will also allow for static leases which can negate many of the few advantages of static. also a nice ip/adsl router adds some measure of security to windows rather than letting windows do pppoe and expose itself entirely. Dean Jeff Waugh wrote: quote who=O Plameras For a long time, I had wanted to ask: why use DHCP in home networks when one can use STATIC ip (using private network ip addresses)? Just curious to know, why. Because DHCP makes your network just work and doesn't inflict the need to understand IP addresses and subnets on unsuspecting users. Hooray for little home network routers that do all of this out of the box. No mucking around. - Jeff -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
O Plameras wrote: For a long time, I had wanted to ask: why use DHCP in home networks when one can use STATIC ip (using private network ip addresses)? Is it not that DHCP is mainly used in situations with the following combinations of circumstances ? 1. Networks with large numbers of workstations that are not permanently on line (e.g. customers-workstations-of ISP that connect only when required). 3. There are more workstations (customers) than there are public ip numbers available in an ISP. These are both valid uses, although I'm curious to know what happened to number 2. :-) 4. Prevent customers of ISP from running WWW(FTP,MTA,etc) sites without paying for fixed ip number(s). Sorry? How does a dynamic address help here? Dynamic DNS services make actually locating a service a snap. Only effective firewalling prevents access to the service. But, to answer your question, DHCP makes networking easy. Routers come preconfigured with working DHCP server. All the user has to know is to plug in to the switch and configure their computer to find an IP address automatically. Seeing as that's the default for Windows and most Linux installers, home networking has become pretty much a no-brainer unless you *want* to get your hands dirty in it. -- Pete -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
Peter Hardy wrote: O Plameras wrote: For a long time, I had wanted to ask: why use DHCP in home networks when one can use STATIC ip (using private network ip addresses)? Is it not that DHCP is mainly used in situations with the following combinations of circumstances ? 1. Networks with large numbers of workstations that are not permanently on line (e.g. customers-workstations-of ISP that connect only when required). 3. There are more workstations (customers) than there are public ip numbers available in an ISP. These are both valid uses, although I'm curious to know what happened to number 2. :-) Sticky fingers. 4. Prevent customers of ISP from running WWW(FTP,MTA,etc) sites without paying for fixed ip number(s). Sorry? How does a dynamic address help here? Dynamic DNS services make actually locating a service a snap. Only effective firewalling prevents access to the service. Clarification; prevent users from using the services for profit without paying for public ip addresses. For users to access a WWW site say, 'www.domain.com.au'(FQDN) one must have DNS entries in one or more DNS servers with 'www.domain.com.au' with ip address like 203.7.132.1 or 'www.domain.com.au' with ip address like 203.7.132.0/32, etc. Of course, users can put ip address instead of FQDN but it means that each time your server is disconnected and re-connected the users have to use different ip addresses to access your service. Not suitable for commercial operations. If you have an alternative can you show us ? But, to answer your question, DHCP makes networking easy. Routers come preconfigured with working DHCP server. All the user has to know is to plug in to the switch and configure their computer to find an IP address automatically. Seeing as that's the default for Windows and most Linux installers, home networking has become pretty much a no-brainer unless you *want* to get your hands dirty in it. OK for off-the-shelf routers. What about Linux boxes configured as routers because one does not wish to pay anymore for a black-box modem/router apart from just ADSL modem ? One still has to configure DHCP. O Plameras -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
quote who=O Plameras What about Linux boxes configured as routers because one does not wish to pay anymore for a black-box modem/router apart from just ADSL modem ? One still has to configure DHCP. ... which is simple and straight-forward and well worth it. If you find it difficult to configure DHCP manually, you can use things like webmin to give you a configuration interface. - Jeff -- linux.conf.au 2007: Sydney, Australia http://lca2007.linux.org.au/ W.O.R.K: Weekend Over, Resume the Killings. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
O Plameras wrote: Peter Hardy wrote: O Plameras wrote: 4. Prevent customers of ISP from running WWW(FTP,MTA,etc) sites without paying for fixed ip number(s). Sorry? How does a dynamic address help here? Dynamic DNS services make actually locating a service a snap. Only effective firewalling prevents access to the service. Clarification; prevent users from using the services for profit without paying for public ip addresses. For users to access a WWW site say, 'www.domain.com.au'(FQDN) one must have DNS entries in one or more DNS servers with 'www.domain.com.au' with ip address like 203.7.132.1 or 'www.domain.com.au' with ip address like 203.7.132.0/32, etc. Of course, users can put ip address instead of FQDN but it means that each time your server is disconnected and re-connected the users have to use different ip addresses to access your service. Not suitable for commercial operations. If you have an alternative can you show us ? Uh, I mentioned dynamic DNS in passing earlier. The Linux DHCP client has hooks built in to issue DNS updates whenever it gets a new lease. Another alternative is a daemon that polls the IP address and updates a service like http://dyndns.org/ whenever it notices the IP address changing. I'm using one of these to point casa.dyndns.tv at my ADSL link, which is notorious for changing its address a dozen times on a bad day. But the hostname always resolves to the current address, and there's very little stopping me from registering, say, stibbonsmegacorp.com, putting a zone on an external name server (like, say, the free service offered by xname.org), and CNAMEing it to my dyndns hostname. No, I don't consider it terribly suitable for a commercial operation either, but there's no pressing technical reason why not. But really, this is getting why out of scope for a discussion on DHCP. But, to answer your question, DHCP makes networking easy. Routers come preconfigured with working DHCP server. All the user has to know is to plug in to the switch and configure their computer to find an IP address automatically. Seeing as that's the default for Windows and most Linux installers, home networking has become pretty much a no-brainer unless you *want* to get your hands dirty in it. OK for off-the-shelf routers. What about Linux boxes configured as routers because one does not wish to pay anymore for a black-box modem/router apart from just ADSL modem ? One still has to configure DHCP. ...then there's a good chance that you *want* to get your hands dirty in networking. But, if not, configuring a DHCP server means you only have to do your network setup once. -- Pete -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] cloning/replacing hardrive
On Wed, December 6, 2006 11:27 am, DaZZa wrote: On 12/6/06, Voytek Eymont [EMAIL PROTECTED] wrote: dd if=/dev/hda of=/dev/hdb bs=1024 That'll copy *everything* across to the new HD, including the boot record and partition table You can then delete the swap partition and re-create it as big as you like, and add new partitions. DaZZa, thanks so I execute dd against a totally 'blank' 2nd HD, yes ? if you were to guess, how long would you expect 18GB of data to copy across? can it be done on 'running system' ? Yes, but you of course have to shut down to install the new HD. Although, I'd suggest you boot to single user mode and mount hda as read-only mode rather than read-write. This is safer, and makes sure you get the data right. is 'init 1' same as booting sgle user mode ? do I 'umount' followed by 'mount' ? how much swap area should I make on new HD ? P3, 1GB RAM Depends what you're using the box for. If it's just a file/web/print server, then I wouldn't make more than 512 meg. If you're using applications which flog the memory, like GIMP or video editing, then you should make maybe 1 gig, possibly even 2 gig of swap. it's purely Apache/MySQL/PHP/Postfix/bind with: 12:51pm up 10 days, 12:04, 1 user, load average: 0.15, 0.20, 0.21 163 processes: 162 sleeping, 1 running, 0 zombie, 0 stopped CPU states: 0.3% user, 0.3% system, 0.0% nice, 99.2% idle Mem: 1023120K av, 898192K used, 124928K free, 0K shrd, 170408K buff Swap: 522104K av, 106044K used, 416060K free 329696K cached # free total used free sharedbuffers cached Mem: 1023120 897960 125160 0 170396 330748 -/+ buffers/cache: 396816 626304 Swap: 522104 106044 416060 -- Voytek -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] cloning/replacing hardrive
On Wed, December 6, 2006 11:27 am, DaZZa wrote: On 12/6/06, Voytek Eymont [EMAIL PROTECTED] wrote: I also want a new partition for /tmp, how much should I give to /tmp ? Why? /tmp shouldn't get used much - the most stuff I've ever seen in there is a couple of gig - and that was after heavily editing images. You'd be better giving /home and /usr their own partitions. I don't hold to this multiple partitions stuff for the most part - I just make one big partition and leave it at that. The only exception is if I'm building a box which will have lots of users on it - then I put /home in a separate partition. DaZZa, I want /tmp mounted as non-executable to prevent malware executed through cms vulnerability (as it happened now twice in the last few month...) shouldn't that 'add a layer' of defense in case of further infiltrations ? -- Voytek -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
What about Linux boxes configured as routers because one does not wish to pay anymore for a black-box modem/router apart from just ADSL modem ? One still has to configure DHCP. i would suggest that an adsl router versus adsl modem do not differ significantly. infact the dlink 'adsl modem' that i have seen in recent optus adsl setups is a 2 port adsl router, 2 ethernet ports with out internally hardwired to a usb ethernet adapter finding an adsl modem is nearly as hard as finding an ip router without wireless =\ Dean -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
On Wednesday 06 December 2006 09:48, you wrote: [EMAIL PROTECTED] wrote: I've done this 3 times, once in the UK (from here) so I'm really certain about my opinion: Get an ADSL ethernet router, with firewall and dhcp Do anything with the computer (but use dhcp) For a long time, I had wanted to ask: why use DHCP in home networks when one can use STATIC ip (using private network ip addresses)? Is it not that DHCP is mainly used in situations with the following combinations of circumstances ? 1. Networks with large numbers of workstations that are not permanently on line (e.g. customers-workstations-of ISP that connect only when required). 3. There are more workstations (customers) than there are public ip numbers available in an ISP. 4. Prevent customers of ISP from running WWW(FTP,MTA,etc) sites without paying for fixed ip number(s). Just curious to know, why. Because dumb-installs use it (both every l I've played with, so does w) The naive (my father in law eg) does not need to concern his overwhelmed mind with gateways and nameservers etc It Just Works The context of this thread was exactly that. In fact my father-in-law got the book ubuntu for idiots (or similar) installed and everything Just Worked. Major achievement. James -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
Howard Lowndes wrote: I think the best reason to use DHCP on networks is to advertise network services or options, even for workstations that have static IP addresses tied to MAC addresses. Thus if you change such things as DNS servers, NTP servers, WINS servers, etc. then all workstations gain consistent configuration. Why would you want to do anything else, esp using fully static configurations. OK, let's say, for a moment, one use DHCP to assign ip addresses to Workstations. What about your local servers ? Do you use STATIC ip addresses for your local Servers at all that provide services like WWW, MySQL, PostgresSQL, Address Directory, local DNS, Auth servers, and other local services ? If not, how do you handle Server Services ? Use FQDN or ip addresses to access services ? O Plameras -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
quote who=O Plameras OK, let's say, for a moment, one use DHCP to assign ip addresses to Workstations. What about your local servers ? Do you use STATIC ip addresses for your local Servers at all that provide services like WWW, MySQL, PostgresSQL, Address Directory, local DNS, Auth servers, and other local services ? If not, how do you handle Server Services ? Use FQDN or ip addresses to access services ? You can use DHCP or static addresses for your servers, it's up to you. In some cases I use static (for network sensitive services such as DHCP and DNS), in some cases I don't (DHCP assignment of static addresses for, say, my fileserver or TV box). As long as your DNS setup is fine, you're done. - Jeff -- linux.conf.au 2007: Sydney, Australia http://lca2007.linux.org.au/ Orphaned farm-boy hero helps save world against bad-guys, begins a journey of self-discovery, and makes interesting friends. Passable. - Andrew Bennetts on Star Wars -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Howard Lowndes wrote: O Plameras wrote: If not, how do you handle Server Services ? Use FQDN or ip addresses to access services ? No, they use a recursive network DNS service in the normal way, which DNS service could be combined with the DHCP server (my preferred option together with the network NTP service), or is the first server that is brought up after the DHCP server has booted, where they are separate entities. While not the best fit for everyone, recently I've been using avahi/mdns/zeroconf/bonjour for name resolution for all computers in my home network. Windows, Mac OS X, Linux all happily figuring out hostnames by themselves. That combined with DHCP and some upnp on the router (again, not for everyone, but good for me), I hardly have to spend anytime setting up networking stuff at home anymore (and I'm somebody who used to have a server acting as gateway/proxy/firewall/dns/caching dns/smtp gateway). - -- dave. -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.2.2 (GNU/Linux) iD8DBQFFdjHbhPPdWeHRgaoRArbFAJ41NpCvg561+HCW0oKx394/ioDMswCbBqfL 3X5jhSmD7JyhvP/xW322Mrk= =BDst -END PGP SIGNATURE- -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
On Wed Dec 06, 2006 at 11:59:42 +1100, Jeff Waugh wrote: quote who=O Plameras For a long time, I had wanted to ask: why use DHCP in home networks when one can use STATIC ip (using private network ip addresses)? Just curious to know, why. Because DHCP makes your network just work and doesn't inflict the need to understand IP addresses and subnets on unsuspecting users. Hooray for little home network routers that do all of this out of the box. No mucking around. And also when moving between networks with a laptop it makes life much easier to just have everywhere use dhcp. Cheers, Benno -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
Peter Hardy wrote: Uh, I mentioned dynamic DNS in passing earlier. The Linux DHCP client has hooks built in to issue DNS updates whenever it gets a new lease. Another alternative is a daemon that polls the IP address and updates a service like http://dyndns.org/ whenever it notices the IP address changing. I'm using one of these to point casa.dyndns.tv at my ADSL link, which is notorious for changing its address a dozen times on a bad day. But the hostname always resolves to the current address, and there's very little stopping me from registering, say, stibbonsmegacorp.com, putting a zone on an external name server (like, say, the free service offered by xname.org), and CNAMEing it to my dyndns hostname. No, I don't consider it terribly suitable for a commercial operation either, but there's no pressing technical reason why not. But really, this is getting why out of scope for a discussion on DHCP. Just a footnote: one CANNOT register to be authoritative for a set of public ip addresses that one does not own. One has to pay (or be authorized by) the owner of the public ip addresses to use it for the services previously mentioned. O Plameras -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
On 06/12/06, O Plameras [EMAIL PROTECTED] wrote: Do you use STATIC ip addresses for your local Servers at all that provide services like WWW, MySQL, PostgresSQL, Address Directory, local DNS, Auth servers, and other local services ? What I do is to assign an IP address to my Debian machine in /etc/network/interfaces which is outside the dynamic IP range allocated by my ADSL modem/router. I did this after failing to find a way to tell the modem/router to always assign a particular IP address to my linux box (based on its ethernet address). I statically forward ports I wish to serve from my linux box (ssh, http) to that static internal address and use no-ip.org to assign a name to the IP address I get from my ISP. Does anyone know whether it is possible to configure a D-Link 504G (firmware R2.01.B24.AU(030917a/Y1.21.1)) to always assign a specific IP address to a particular ether net card? --P -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer)
Howard Lowndes wrote: Let's call them fixed IP addresses rather than static IP addresses as they are fixed to the MAC address OK, 'fixed' ip address is the more appropriate term. All servers except the DHCP server itself have fixed IP addresses sourced from the DHCP server along with the network configuration options, that fixed IP address is registered in the DHCP server as being associated with the MAC address of the discovering server. OK, so DHCP must be configured to include MAC address to assign the same ip address to a specific computer every time that computer is booted up so it's ip address will remain the same all the time. O Plameras -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Modems vs Routers (Re: Why DHCP ? (WAS: Re: [SLUG] My father wants an inexpensive computer))
On 12/6/06, Dean Hamstead [EMAIL PROTECTED] wrote: What about Linux boxes configured as routers because one does not wish to pay anymore for a black-box modem/router apart from just ADSL modem ? One still has to configure DHCP. i would suggest that an adsl router versus adsl modem do not differ significantly. infact the dlink 'adsl modem' that i have seen in recent optus adsl setups is a 2 port adsl router, 2 ethernet ports with out internally hardwired to a usb ethernet adapter finding an adsl modem is nearly as hard as finding an ip router without wireless =\ There's a big difference between a modem and a router, which I'm not going to bother defining here (check your CCNA reference material, or wikipedia, for details). There is, admittedly, a lot of confusion in slang/common/gardern/non-techinical usage of the two terms though, and as you've said, it's not helped by the fact that almost all *DSL devices perform both functions. I saw a DSL modem in Tricky Dicky's on the weekend and started gushing loudly about how cute it was, which for some reason got me weird looks from staff.. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] VMware-server virtual disk deletion
I installed the VMware-server application and created a virtual machine, including a virtual hard disk to which 8GB was allocated. I then installed a Linux distribution on the virtual machine. I was having problems with the virtual machine and decided that the best thing to do was to delete it and start again. I did that and created a new virtual machine, including a new virtual hard disk to which 8GB was allocated. Next, I decided that it was all too much trouble and deleted the application. I now discover that that doesn't remove the allocation of 8GB + 8GB from the two virtual hard disks. Not having that 16GB available is very inconvenient for me. Can anyone familiar with the application tell me how I can reverse the allocation and get my 16GB back without re-installing the application? -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] VMware-server virtual disk deletion
The virtual hard disks are created as files. You should be able to delete the files from windows explorer. search for *.vmdk and delete all the junk in that directory. -iru P.S. Why are you creating new virtual machines? plenty to download and test :) Leslie Katz wrote: I installed the VMware-server application and created a virtual machine, including a virtual hard disk to which 8GB was allocated. I then installed a Linux distribution on the virtual machine. I was having problems with the virtual machine and decided that the best thing to do was to delete it and start again. I did that and created a new virtual machine, including a new virtual hard disk to which 8GB was allocated. Next, I decided that it was all too much trouble and deleted the application. I now discover that that doesn't remove the allocation of 8GB + 8GB from the two virtual hard disks. Not having that 16GB available is very inconvenient for me. Can anyone familiar with the application tell me how I can reverse the allocation and get my 16GB back without re-installing the application? -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] VMware-server virtual disk deletion
donohueb wrote: never had this happen before. usually you have to remove the VM from the list of servers in the inventory first. then blow away the files. possibly something is still holding them open. you could always reboot the host server and then try deleting the files. Ben Thanks for replying, Ben. I did remove the first VM from the inventory before creating the second one, thinking that that would release the 8GB. I didn't remove the second VM before uninstalling the application, foolishly thinking that the first 8GB had already been released and that uninstalling would put an end to the allocation of the second 8MB. I have rebooted the host, but df -h still shows that 29GB out of 36GB on the / partition are used, whereas, before I started this foolhardy adventure, it showed that only 13GB had been used. I've also searched for directories and files with vmware in their name and deleted all of them (or almost all), but that hasn't hit the jackpot yet. I'll keep on with that. Thanks again, Leslie -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] VMware-server virtual disk deletion
never had this happen before. usually you have to remove the VM from the list of servers in the inventory first. then blow away the files. possibly something is still holding them open. you could always reboot the host server and then try deleting the files. Ben Leslie Katz wrote: I installed the VMware-server application and created a virtual machine, including a virtual hard disk to which 8GB was allocated. I then installed a Linux distribution on the virtual machine. I was having problems with the virtual machine and decided that the best thing to do was to delete it and start again. I did that and created a new virtual machine, including a new virtual hard disk to which 8GB was allocated. Next, I decided that it was all too much trouble and deleted the application. I now discover that that doesn't remove the allocation of 8GB + 8GB from the two virtual hard disks. Not having that 16GB available is very inconvenient for me. Can anyone familiar with the application tell me how I can reverse the allocation and get my 16GB back without re-installing the application? -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
