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LF examples - using site-specific RPMs for config
by Alan McKay 15 Sep '09

15 Sep '09

Hey folks, A week or two ago someone mentioned something about using their own home-grown RPMs for managing config info on their boxes. I really like this idea and would like to learn more about it. Are there some examples out there? I have lots of custom config info and think this would be an ideal way to manage it. Others mentioned puppet and CF engine which probably have their merits as well. But I don't really have time at the moment to learn those. Perhaps in this thread we could even discuss the +/- of each method. cheers, -Alan -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food"

8 7

problem installing CentOS 5.3
by Buz Davis 15 Sep '09

15 Sep '09

I have a small fixed ip network at home, running red hat 9 on two amd k6 500 Mhz boxes. One has 256 M memory and the other 320 M. They pretty much meet my needs, but lately I have detected that the internet sites I frequent are requiring some more modern software than I can run. I attempted to install Fedora 8, but that failed on the AMD processors. So I ordered a set of CentOS 5.3 i386 disks. The CentOS install fails also. I could get the first screen up, offering choices of how to boot, and if I asked for memtest86 that would start. (I had verified memory earlier, during my F8 attempts). However, any other choice resulted in a reboot (generally during loading of vmlinux). Sometimes the disk wouldn't be recognized as bootable. I have convinced myself that the disks are OK (see below) and that I must need either better hardware or more memory (but this is the i386 version of CentOS 5.3) or some parameter on the install that I haven't tried (and I've tried about all I have found or remember). I would appreciate any help. What I've done so far: At first I thought that the CentOS 1of6 disk must be bad (couldn't even run a mediacheck) and emailed the vendor. Then it occurred to me that I could perhaps download and burn disk 1of6 and use that to get the install started. (Up until my attempts at F8 I had not had the capability to burn a CD. While trying with F8 I bought a used "intel inside" computer with a broken XP system on it. I blew that away but F8 found problems with the hard disk and wouldn't install. I managed to install RedHat 9, which gave me access to the CD). I reaized that the process would be a bit "iffy" on a box with hard-disk problems, and also I had never burned a cd, but googled around for instructions and plunged in. I downloaded an ios, checked it with md5sum and it was OK. I copied it to the "new" computer via NFS and checked it again: OK. I burned a CD using cdrecord, and the burn appeared to work. The result behaved much like the original had. I tried two more times, varying stuff that I thought might affect the burn, and always got the same sort of behavior. Finally I tried mounting (on a RH9 box) each of the four disks 1of6 I now had and copied (from /dev/cdrom rather than /mnt/cdrom, so as to avoid separating out the files) each to a separate directory and compared them. All three that I burned were identical. The "store bought" disk was a little larger, but compared OK up to EOF on the other (and I recall reading that mass-produced disks might be different in their padding). So I am convinced now that there is nothing wrong with either the original or recently burned disks 1of6 and the problem must either be requiring better/more hardware (but this is the i386 version of cent OS) or some parameter on the install I have never heard of. Again, any advice would be appreciated. Buz

3 2

problem with a repo
by Dave 14 Sep '09

14 Sep '09

Hello, I've got rpmforge and epel on centos 5.3. I'm trying to do an install of perl-Image-Info for spamassassin image scanning. The package was picked up in rpmforge since first, but it is failing to install because a dependency is missing. I added perl-Image-Info to rpmforge's excludepkgs line and tried to install the package again this time thinking it would pull from epel. This did not occur yum still tried to fetch from rpmforge. For my excludepkgs line i tried: excludepkgs=package1,package2,perl-Image-Info and since the changes weren't picked up i did: excludepkgs=package1 package2 perl-Image-Info Any help appreciated. Thanks. Dave.

5 4

Securely backing up Linux machines to NAS?
by Scott Ehrlich 14 Sep '09

14 Sep '09

I have been tasked with having a Buffalo Terastation Pro 2 NAS box, likely to be connected to a Linux box via samba, be the storage device to back up mostly Ubuntu and Centos systems. The trick is, the machines to be backed up need to do so in an automated fashion and make a secure, encrypted connection to my Linux box hosting the NAS. The NAS does have SSL enabled for web admin access, though the same login credentials are used to authenticate the Linux host via samba to the NAS. So what are the simplest options to back up the Linux hosts? rsync does come to mind, but how to do so securely from each host? I'd consider something via ssh, but that would mean an interactive login, and encrypting individual files on the hosts is not an option. NFS is also available on the NAS, but considering the security concerns, I will not use that, nor do I want to enable any more services on the linux machines being backed up than necessary, meaning samba is not an option, unless it remains the ONLY one. I ONLY plan to use samba to mount the NAS to my Linux server, unless someone comes up with a more secure method, or even away to negate the need of the Linux server and permit the hosts to back up directly to the NAS... Ideas are welcome. Thanks. Scott

10 9

Re: [CentOS] Securely backing up Linux machines to NAS?
by Glenn 14 Sep '09

14 Sep '09

At 10:42 PM 9/11/2009, you wrote: >I have been tasked with having a Buffalo Terastation Pro 2 NAS box, >likely to be connected to a Linux box via samba, be the storage device >to back up mostly Ubuntu and Centos systems. The trick is, the >machines to be backed up need to do so in an automated fashion and >make a secure, encrypted connection to my Linux box hosting the NAS. >The NAS does have SSL enabled for web admin access, though the same >login credentials are used to authenticate the Linux host via samba to >the NAS. > >So what are the simplest options to back up the Linux hosts? rsync >does come to mind, but how to do so securely from each host? I'd >consider something via ssh, but that would mean an interactive login, >and encrypting individual files on the hosts is not an option. > >NFS is also available on the NAS, but considering the security >concerns, I will not use that, nor do I want to enable any more >services on the linux machines being backed up than necessary, meaning >samba is not an option, unless it remains the ONLY one. > >I ONLY plan to use samba to mount the NAS to my Linux server, unless >someone comes up with a more secure method, or even away to negate the >need of the Linux server and permit the hosts to back up directly to >the NAS... > >Ideas are welcome. > >Thanks. > >Scott Scott, http://www.jms1.net/code/rsync-backup.shtml Cheers!

1 0

Persisting iproute2 routes and rules
by Diogo Sperb Schneider 14 Sep '09

14 Sep '09

Greetings! I have defined a few routes and rules with: ip route add ... ip rule add ... And now I'd like to persist those so they're loaded when the system boots up. I'm doing this by means of calling a specific script from /etc/rc.d/rc.local but I believe there must be something cleaner than that, like another existing file. Thanks in advance, Diogo

6 8

Re: [CentOS] LF examples - using site-specific RPMs for config
by davxoc＠gmail.com 14 Sep '09

14 Sep '09

------Mensaje original------ De: Karanbir Singh Remitente: centos-bounces(a)centos.org Para: CentOS mailing list Responder a: CentOS mailing list Asunto: Re: [CentOS] LF examples - using site-specific RPMs for config Enviado: 14 Sep, 2009 12:11 On 09/14/2009 05:35 PM, Alan McKay wrote: > A week or two ago someone mentioned something about using their own > home-grown RPMs for managing config info on their boxes. this is a really really bad idea. I'd suggest you dont waste your time around this and instead work with projects like chef / puppet / bcfg2 and look at those to manage what they do - config and state. -- Karanbir Singh : http://www.karan.org/ : 2522219@icq _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos Enviado desde mi oficina móvil BlackBerry® de Telcel

1 0

Problems with Adobe flash-plugin and Firefox-3.5.x under CentOs-5.3 (yum up to date)
by Martin Knoblauch 14 Sep '09

14 Sep '09

Hi, I am running 32-bit Firefox-3.5.3 on Centos-5.3 (64-bit kernel) on a Dell Precision M65 laptop. This is likely a Adobe problem, but maybe someone else has seen this before. Please CC me, as I only receive the digest version of the list. When using the 10.0.32.18-release version of the flash-plugin, trying to access *any* page containing flash (e.g. www.adobe.com) causes the browser to die. This also happens with version 10.0.22.87. Version 9.0.115.0 works fine. To avoid problems with add-ons, Firefox is started with "-safe-mode". As far as I know, the problem also happens with Firefox-3.0.x. # uname -a Linux l6g0223j 2.6.18-128.7.1.el5 #1 SMP Mon Aug 24 08:21:56 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux # rpm -q flash-plugin flash-plugin-10.0.32.18-release Any idea? Anything I can help debugging the problem? Cheers Martin ------------------------------------------------------ Martin Knoblauch email: k n o b i AT knobisoft DOT de www: http://www.knobisoft.de

2 1

Opinions on bonding modes?
by Rick Barnes 14 Sep '09

14 Sep '09

I am working on setting up an NFS server, which will mainly serve files to web servers, and I want to setup two bonds. I have a question regarding *which* bonding mode to use. None of the documentation I have read suggests any mode is "better" than other with the exception of specific use cases (e.g. switch does not support 802.3ad, active-backup). Since my switch *does* support 802.3ad, including layers 2,3 and 4 hashing, should I use mode=4? Or would one of the other modes be "better" for providing fail-over and link-aggregation, specifically balance-tlb or balance-alb. Any suggestions are appreciated. Thanks, Rick

3 2

vsftp strangeness
by Eugene Vilensky 14 Sep '09

14 Sep '09

Greetings, When logging into my VSFTPD server, my clients recieve this: 220 (vsFTPd 2.0.5) Name (------): user 331 Please specify the password. Password: 421 Service not available, remote server has closed connection Login failed. vsftpd logs show that everything went ok: Sat Sep 12 15:52:02 2009 [pid 1131] CONNECT: Client "" Sat Sep 12 15:52:02 2009 [pid 1131] FTP response: Client "", "220 (vsFTPd 2.0.5)" Sat Sep 12 15:52:04 2009 [pid 1131] FTP command: Client "", "USER user" Sat Sep 12 15:52:04 2009 [pid 1131] [user] FTP response: Client "", "331 Please specify the password." Sat Sep 12 15:52:06 2009 [pid 1131] [user] FTP command: Client "", "PASS <password>" Sat Sep 12 15:52:06 2009 [pid 1130] [user] OK LOGIN: Client "" /etc/shells is correct, there is no chroot user list involved, there are no pam-auth error events in /var/log/secure. In fact, just for giggles, i made all of the possible auth errors that i know of and they generally provide a very explicit error: "530 Login incorrect." I have restricted the port range for passv and opened iptables, ip_conntrack_ftp (sp?) is loaded, and port 20 and 21 are opened. Anyone seen this similar? Regards, Eugene Vilensky evilensky(a)gmail.com

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