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CUPS not rendering documents via Samba
by Kevin Thorpe 23 Jun '11

23 Jun '11

Hi guys, any CUPS / Samba experts out there? The CUPS printing guide is a horrendous maze of options. I've got nearly there but I've got one thing wrong and I don't know where to look. I set up our two printers (HP K5400s) using the GUI printer tool. Both print the test page just fine. I set up the [printers] and [print$] shares and can browse to the printers from Windows (XP for me) I managed to get the postscript drivers installed with cupsaddsmb and it installs on the XP client just fine. ..... sadly it just prints the postscript instead of rendering it. I guess the printer queue is in raw mode but I can't see where to change it. I vaguely remember foomatic and such from ages back. Can someone point me at the right part of the setup to fix this please? -- Kevin Thorpe Head of IT PI Benchmark

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Year in log files
by Fajar Priyanto 23 Jun '11

23 Jun '11

Hi, Can we display year in log files timestamp? We are being audited and the auditor wants to know when we apply certain patches. yum.log shows it, but it doesn't have the year. I can argue based on common sense, but it would be much nicer if the year is there. Example: Apr 12 11:41:25 Updated: krb5-libs-1.6.1-55.el5_6.1.i386 Apr 12 11:41:27 Updated: openssl-0.9.8e-12.el5_5.7.i686

2 1

Lingering dhclient issue
by Alfred von Campe 22 Jun '11

22 Jun '11

I recently reconfigured some CentOS 4.3 systems that were using DHCP to use static IP addresses. At the same time, the systems were moved to a new VLAN. Here is the approximate sequence of events that took place: 1. ifdown eth0 2. edit /etc/sysconfig/network-scripts/ifcfg-eth0 with static IP address 3. wait for network folks to reconfigure switch 4. ifup eth0 I may have reversed steps 1 and 2 on some of the systems. The problem was that the dhclient process didn't go away, and kept renewing the old lease. Our DHCP server is configured to contact the DNS server and update the entry for each host it serves. So the DNS entries for these systems were pointing to the old address in the old VLAN. The eth0 interface itself just kept the static IP address for which it was configured. It took me a while to figure out what was going on. My question is, what could I have done to avoid this (other than killing the dhclient process)? Is there a better way to reconfigure an interface to use a static address? I am not interested in solutions that involve using a GUI (i.e., only command line solutions). Thanks, Alfred

9 17

OT: high static in server room
by Fajar Priyanto 21 Jun '11

21 Jun '11

Hi guys, Sorry for the OT. For the last couple of weeks I notice that the static in my server room is worrisomely noticeable. I cannot see what may be causing it.... Care to share some of your experience what may be the cause and the remedy? Thank you.

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CentOS 5 32bit and 3Tbyte drives
by Stephen Harris 21 Jun '11

21 Jun '11

Has anyone tried to use these yet? For hysterical raisons, my primary machine is CentOS5 32bit (up to date). In the machine I have a SiI 3132 dual port SATA controller with port multiplier. Both ports are plugged into an external storage device which presents 4 SATA disks on each port, for a total of 8 possible disks. Currently I have 5*1Tb in there, configured as RAID5 via mdadm I boot off an internal SATA disk; I don't see a need to change that. But space is running out; I wondering if the new 3Tb disks would work in this scenario; most importantly will 2.6.18-238.9.1.el5PAE see the whole disk? And also whether I need to be worried about 4Kbyte sectors. These new disks are confusing me! -- rgds Stephen

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Slightly OT: First Time KVM and LVM on Centos
by Jeff Boyce 21 Jun '11

21 Jun '11

Greetings - I am a novice system administrator and will soon be purchasing a new server to replacing an aging file server for my company. I am considering setting up the new server as a KVM host with two guests; one guest as the Samba file server and a second guest as a testing area. My old server was set up about 7 years ago and has a 5 disk raid 5 configuration without LVM. I understand the benefits of using LVM and KVM in the right circumstances, but have never used either of them. I have spent a couple of days over the last week trying to understand how to setup a KVM host with guests, but there is an area that I still don't understand; that is the relationship between the underlying raid partitions, LVM, and allocating space to a host and guests. Many of the standard search term combinations in Google don't seem to be getting me anywhere. From what I have read so far I think that I want to have my file server guest using a raw partition rather than an image file, but I haven't found anything with examples or best-practices guidance for partitioning or volume management with hosts and guest VMs. So I am hoping that someone here can give me some pointers, or point me to some clear how-to's somewhere. Any help is appreciated. Thanks. Jeff Boyce Meridian Environmental www.meridianenv.com

7 8

lots of disk activity keep process from responding
by Jerry Geis 20 Jun '11

20 Jun '11

hi all I have something like 3000 log files in a directory (from data collection). At 4am in the morning cron runs a script of mine that essentiallly trims all files in that directory back to a certain size. Basically does a "tail -c XXXX filename > tmp_filename" I have noticed that only around the 4am-4:15 time frame when the trim is happening does my other process log connection attempts but my process (forking and opening databases) is not responding in time to give data back to the connecting process. Not critically important as it just tries again and all ok... My question is how do I tell the script that runs to run at a lower priority perhaps ??? Or is there another way to do this I am not aware of? The trimmming of the log files is just so they they dont take a bunch of space on the HD. It doesnt have to be done supper fast or anything. Any ideas I might try? Thanks, Jerry

6 5

Re: [CentOS] Config file semantics.
by m.roth＠5-cent.us 18 Jun '11

18 Jun '11

Devin Reade wrote: > --On Friday, June 17, 2011 02:27:22 PM -0400 m.roth(a)5-cent.us wrote: > >> Minkowski space? > > Sure. I'll implement M-x minkowski-space-mode as soon as I > get 'elsewhere' (in Minkowski terms, that is). > You're sure that's not a vim option? mark Kirk: Warp 5, Scotty! Scotty: We're shovelin' as fast as we can, captain! Goddamn dnsorbs! Two bounces....

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non-fluff: NIC configuration: mingnt?
by m.roth＠5-cent.us 17 Jun '11

17 Jun '11

We've got this really bizarre problem, trying to get a bridge/firewall working. My manager and I are almost grasping at straws.... Anyway, I'm using lshw to look at an identical machine, and a Dell 1950 that works when configured as a bridge, and there's one thing I don't know: does anyone know what mingnt is? Thanks. mark

2 1

Config file semantics.
by Mike A. Harris 17 Jun '11

17 Jun '11

Personally, I find that indenting config files by 3 spaces has a lot of advantages to indenting them by 4 spaces although conventional wisdom might suggest otherwise. Who's with me on this?

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