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RE: [CentOS] Limiting files when using rsync
by Mark Schoonover 26 Jan '07

26 Jan '07

Peter Serwe wrote: > Todd Cary wrote: >> Mark - >> >> Thanks! That did it. >> >> /usr/bin/rsync -av --exclude=".*" -e ssh /home/ 192.168.0.22:/home/ >> My next step will be to brush the dust off of my Perl book and write >> a crontab script to backup nightly. >> >> Question: I may not be using the term "backup" absolutely correctly. >> The destination server is a "standby" server. This is if the source >> server fails, all I have to do is change the router to point to the >> standby server. These are in a home office and I do not consider >> myself a system administrator; just someone who knows enough to keep >> the server running (it's main task is FTPing). Do you have any >> suggestions about using rsync as I am doing? > I'm confused *what* in the world would make you want to write perl > for this purpose when two lines of bash would serve the purpose > (admirably). > > #!/bin/bash > /usr/bin/rsync -av --exclude=".*" -e ssh /home/ 192.168.0.22:/home/ > > If for some reason, you wanted to do something sexier or more dynamic > in terms of the source/destination, that would add 4 more lines to > make it something like: > > #!/bin/bash > for dir in 'ls -1 /home/' > do > /usr/bin/rsync -av --exclude=".*" -e ssh /home/$dir/ > 192.168.0.22:/home/$dir/ > done > > You can even nest loops and iterate multiple parameters. > > Peter Peter, Was this just an example of using a for loop?? I wouldn't do this with rsync, it can handle recursive directories on its own. Putting it in a for loop, then calling rsync over and over again, will take a huge performance hit because rsync will have to build the file list for each directory in /home. Just point it to /home, and all will be fine. Thanks! Mark Schoonover IS Manager American Geotechnical V: 858-450-4040 - F: 714-685-3909 - C: 858-472-3816 "Stop the Earth!! I want off!!"

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Re-running CPAN setup
by Erick Perez 26 Jan '07

26 Jan '07

I just ran for the first time perl -MCPAN -e shell and answered all the question, but i made a mistake and selected an incorrect mirror. How can I rerun this perl setup? -- ------------------------------------------------------------ Erick Perez Panama Sistemas Integradores de Telefonia IP y Soluciones Para Centros de Datos Panama, Republica de Panama Cel Panama. +(507) 6694-4780 ------------------------------------------------------------

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RE: [CentOS] Limiting files when using rsync
by Mark Schoonover 26 Jan '07

26 Jan '07

Todd Cary wrote: > I use the following command to sync the home directory on the two > computers, however I would like not to send the "dot" files e.g. > ".ssh". Can that be done, and if so, how would I construct the > command line? > > /usr/bin/rsync -av -e ssh /home/ 192.168.0.22:/home/ > > Many thanks.... > > Todd Todd, I'm pretty sure you need to --exclude '.*' on the command line, buh I usually put all my excludes in a file and --exclude-from=rsync.excludes. Thanks! Mark Schoonover IS Manager American Geotechnical V: 858-450-4040 - F: 714-685-3909 - C: 858-472-3816 "Stop the Earth!! I want off!!"

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How to whitellist and blacklist domains in amavisd-new.
by Indunil Jayasooriya 26 Jan '07

26 Jan '07

Hi, I want to know how to whilelist or blacklist domains in amavisd-new. By now, I have already added a whiltelist and a blacklist with email addresses in following way. in amavisd.conf file , belwo two lines @whitelist_sender_maps = read_hash("$MYHOME/white.lst"); @blacklist_sender_maps = read_hash("$MYHOME/black.lst"); then , I did below two , touch /var/amavis/white.lst touch /var/amavis/black.lst Then I added email addresse per line in these two files. Now I need to know how to whiltelist or blacklist entire domains. (NOT email adddressess) Pls help . -- Thank you Indunil Jayasooriya

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Squid 2.6 RPM
by Matt 26 Jan '07

26 Jan '07

CentOS 4.4 includes squid-2.5.STABLE6-3.4E.12. Can anyone tell me where to find a 2.6 rpm? Matt

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RE: [CentOS] Problems with building a complete kernel
by Mark Hull-Richter 26 Jan '07

26 Jan '07

Thanks - I'm still working on it. Does anyone know where there is a clean, working source for Centos 2.6.9-42.0.3 (supposedly the 4.4 final)? I'm pretty sure the one I have is NOT the right one.... -----Original Message----- From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf Of Jim Perrin Sent: Thursday, January 25, 2007 2:47 PM To: CentOS mailing list Subject: Re: [CentOS] Problems with building a complete kernel On 1/25/07, Mark Hull-Richter <mhull-richter(a)datallegro.com> wrote: > I have a plain vanilla Centos source (not 100% sure where we got it > from), but I can't seem to get a build that installs correctly. Welcome to the joy of building custom kernels. > I tried the method described at > http://wiki.centos.org/HowTos/Custom_Kernel, but rpm doesn't like the > output file, and even if I install it with -F, nothing seems to happen - > no new kernel, now initrd, nothing. Something in your build process has likely failed. Also, -F is to 'freshen' an existing package. This is something you most definitely DO NOT want to do with a kernel. > When I tried following the directions in the README file that came with > the source, I built the kernel just fine, but the instructions then go > on to describe how to modify LILO to make the install work, and my boot > loader is GRUB - not sure how to reconcile those two. Look at your /etc/grub.conf and add a stanza like the others, but with your kernel info. It should be pretty straight forward. > > So, I built yet another kernel (rpm) following the guide at > http://www.howtoforge.com/kernel_compilation_centos, and the rpm built > just fine, but when I run mkinitrd, it complains that I don't have the > ahci module in my kernel. The only reference I have found to ahci is in > my boot setup, and it is already enabled, so, once again, I am stuck. > Anyone have any ideas here? Yes. Follow one guide at a time. This will keep you from dragging your problem around with you. Troubleshoot why your build failed the first time around. > > I'm running Centos 2.6.9-42.0.3ELsmp on a Dell Precision 390 (P4/HT > 3GHz, 2Gb mem, ATI FireGL 4700, 160Gb SATA, ... Seems fairly common hardware. Are you sure you need to rebuild? Perhaps the centos wiki was not stern enough in discouraging custom builds for a plethora of reasons. What feature is it that you wish to enable in your custom kernel? -- During times of universal deceit, telling the truth becomes a revolutionary act. George Orwell _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos

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Badness in i8042_panic_blink at drivers/input/serio/i8042.c: 992
by yogeshwar sonawane 26 Jan '07

26 Jan '07

Hi all, I am getting this error while kernel hangs. I am using CentOS 4.4 (x86_64) on Dual Opteron 4 way SMP machine. After searching, i didn't found a sound answer. If anybody know the solution, plz let me know. Thanks in advance, Yogeshwar

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backup exec client for centos/linux?
by Karl R. Balsmeier 25 Jan '07

25 Jan '07

Hi, am just setting up some devboxes and would like to start backing CVS up to tape using our existing setup -anyone heard about a backup exec client for linux/rhel? I used to use HP Dataprotector 5.1 and it worked fine -any word on this other client would be great. am searching symantec/veritas site high and low... -karl

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Best Board Your Ever Ran CentOS On?
by Karl R. Balsmeier 25 Jan '07

25 Jan '07

Hi, Whats' the best motherboard you ever ran CentOS on? --------- Don't read this unless you have lots o' spare time, and please, no flamers or kook-jobs with wierd attitudes, this is just plain old hardware as it relates to centos talk -no politic or mean folks. Background (why I ask about centos-friendly hardware): As I order alot of servers, I have alot of vendors telling me all sorts of stuff. It gets pretty extreme sometimes. I play poker each Sat. eve with a Google Engineer, but we never talk about work. One day we might, but I thought i'd ask the list, because there are alot of vendors out there who contradict just about everything I see on the list that I consider to be excellent advice, given by really talented and positive-minded folks, true professionals. One thing I remember reading about Google is that they choose commodity hardware and engineer the $%^&* out of it and basically add it into a hive/clusterlike existence where it metes out it's daily java/mail/database/ftp/memcache sessions. The modular nature of the hardware allows both scaling, and spontaneuous disaster recovery of very high quality. http://news.com.com/2100-1032_3-5875433.html I have chosen to follow the same logic, or at least continue down the path of those before me that made this choice. From my view, my CentOS machines that never break, run happiest on AMD-friendly boards, with older onboard Broadcomm GBnics that support NIC bonding and handle excess internet & internal snmp (cacti & nagios) traffic without blowing up. I can rave about Crucial (Micron) RAM, and AMD Opteron CPU's, and Seagate & Fujitsu SCSI SCA 80 pin drives, Chenbro 2U rackmount 6* SCA cases, Zippy redundant power supplies, LSI Logic MegaRAID 320-2 controllers -but the basis of it all is the board. It's got all the other parts no one talks about. It's the source of many a dmesg output. With the right board, life is much much easier. Right now I run using Tyan S288@UG3NR-D Dual Core Opteron SCSI SATA GBe LAN boards. I have a vendor that consistently says they get complaints on Tyan boards, but out of the cluster, none of mine have ever died. The Dells die, and get replaced. The remaining Sun's, seem to never die even though I wish they would. Not that i'm a fan of Tyan, -but oddly enough this particular board works great. I noticed alot of the hardware advice Johnny gives (hardware & advice/fixes) just so happens to coincide with vendors saying the exact oppposite thing. They say go with ATI and broadcomm right when he's actually helping someone fix something related to one of those components. Sometimes on the same day. If we as engineers are to have any say in our industry, it's going to happen when we all talk outside the box of BS theory and FUD or over-analysis or analysis-for-analysis'-sake. Right now Intel has things such that it's actually a little difficult to find a stock 2U production linux system unless you actually break it down part-by-part and vet the whole thing. Just curious about your opinions and advice -is there a spec you follow that you like? Way back when, you'd either order a Supermicro-type system, or get a VA Linux type machine. What do you do now? If you happen to be trying to spec out a solid Linux server, I can say that the spec I arrived at handles over 100,000,000 page views a week -that's 1/3rd of CNET. It's all CentOS, the whole thing. A percentage of you might have travelled across them, especially if you happen to read news on the web. Commodity is the way to go. Get 40 servers for the price of one commercial vendor machine. CentOS is very real my friends -let's talk hardware! Maybe we can help the centos project out by doing so. I have to say, i'm sticking with my own hardware choices, -so please don't view this as someone trying to get a hardware spec for free -the intention here is to solidify our own base as centos users, sysadmins. -krb

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mount initrd
by Denis Machard 25 Jan '07

25 Jan '07

Hi, I try to mount the file /boot/initrd-2.6.9-42.ELsmp but I have a error [root@localhost ~]# cp /boot/initrd-2.6.9-42.ELsmp.img /root/ [root@localhost ~]# mv initrd-2.6.9-42.ELsmp.img initrd-2.6.9-42.ELsmp.gz [root@localhost ~]# gunzip initrd-2.6.9-42.ELsmp.gz [root@localhost ~]# mount initrd-2.6.9-42.ELsmp /tmp -o loop [root@localhost ~]# mount: you must specify the filesystem type why ? Denis

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