Discuss September 2009

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300 participants
293 discussions

network not starting and maybe other services in a virtual machine
by Jerry Geis 21 Sep '09

21 Sep '09

I am installing centos 5.3 i386 in a virtual machine. I am using kvm-87 (which I use for other images just fine). The box installed fine, it boots up I can login but NONE of the services are starting . When watching the boot up process it goes from the "Welcome to CentOS 5.3 " directly to mounting the partitions and a login prompt. All the services are not being started. What didnt happen at install? or what do I check now. /etc/inittab looks normal. Thanks, Jerry

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Receive, process and send email
by CSB 21 Sep '09

21 Sep '09

We wish to do the following: 1. receive an email with an attachment 2. process the email body to get some information from it 3. send an outbound email to an email address based on the information derived from step 2. The email will include the attachment received in step 1 I'm not sure where to start with this one so any suggestions would be appreciated.

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Status of RPMForge || RPMRepo
by Andrew Hull 21 Sep '09

21 Sep '09

Are the websites for RPMForge or RPMRepo off line for anyone else? As an aside (since I am just noticing), how long has rpmforge.net redirected to rpmrepo.org/rpmforge? Thanks, Andy

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How does LVM decide which Physical Volume to write to?
by Oliver Ransom 21 Sep '09

21 Sep '09

Hi everyone. This isn't specifically a CentOS question, since it could apply for any distro but I hope someone can answer it anyway. I took the following steps but was puzzled by the outcome of the test at the end: 1. Create a RAID1 array called md3 with two 750GB drives 2. Create a RAID1 array called md9 with two 500GB drives 3. Initialise md3 then md9 as physical volumes (pvcreate) 4. Create a new volume group called "3ware" with md3 (helps me remember what controller the disks are on) 5. Use vgextend and add md9 to the 3ware volume group. 6. Add a logical volume filling the volume group then create a ext3 filesystem on the entire volume. Now I started moving a lot of data onto the volume and iostat said all the data was being written to md9. Why that array? How does it decide which physical volume to write to? I could not find any documentation or information online about how exactly this works. Thanks! Oliver

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redirect
by ZZZ 21 Sep '09

21 Sep '09

Hi, I have an Nginx http proxy server with SSL. What I want to do is: If a client that has a certificate is trying to access the server's address, he is to be redirected to our production server, to certain URL. If a client doesn't have a certificate, he is to be redirected to the same production server, but a different URL. The problem is that if the client doesn't have a certificate, he gets the following error: 400 Bad Request The SSL certificate error ------------------------------------------------------------------------ nginx/0.6.39 I've tried the following: server { listen 8443; ssl on; ssl_certificate /etc/httpd/ssl/proxy-ssl.cer; ssl_certificate_key /etc/httpd/ssl/server.key; ssl_client_certificate /etc/httpd/ssl/ca-bundle.crt; ssl_verify_client on ............................................................................................. ............................................................................................. error_page 400 /400.html; location = /400.html { root /usr/share/nginx/html; but the error page 400 statement is simply ignored. Does anyone have an idea how can I do it ? I tried to find the 400 error page, thinking maybe I can make the redirect there, but it is simply not to be found. P.S. my programming/scripting skills aren't any.....

1 1

SSL and virtual hosts?
by Niki Kovacs 21 Sep '09

21 Sep '09

Hi, I successfully managed to use SSL on a local webserver for testing purposes, following the section "Using SSL" in the Chapter "Using Apache" of the "Definitive Guide to CentOS". Now I wonder: how can I use SSL with virtual hosts? I have several virtual hosts defined. Let's say I want to use SSL with this one: <VirtualHost *:80> ServerAdmin info(a)microlinux.fr DocumentRoot /var/www/html/microlinux ServerName buildbox.presbytere.local ServerAlias microlinux.buildbox.presbytere.local ServerAlias microlinux.buildbox ErrorLog logs/microlinux-error_log CustomLog logs/microlinux-access_log common </VirtualHost> The key and certificate files are located in /etc/certs: # ls -lh /etc/certs total 12K -rw-r--r-- 1 root root 981 sep 20 11:06 microlinux.crt -rw-r--r-- 1 root root 716 sep 20 11:04 microlinux.csr -rw-r--r-- 1 root root 887 sep 20 11:11 microlinux.key I'm not sure about the correct syntax to use SSL on this one. Where do I configure SSLCertificateFile and SSLCertificateKeyFile? In the virtual host stanza? Before trying various haphazard configurations, I thought I'd better ask here. Niki

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sed (or other) magic to get RPM base names ?
by Alan McKay 21 Sep '09

21 Sep '09

Hey folks, Once upon a time I saw some sed magic to take the output of "rpm -qa" and strip away all the version info to give just the RPM base names. And of course I forgot to note it :-/ And have not been able to replicate it myself. e.g. from this : avahi-0.6.16-1.el5 avahi-glib-0.6.16-1.el5 produce this : avahi avahi-glib thanks, -Alan -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food"

3 2

Thermal information
by Sergio Belkin 21 Sep '09

21 Sep '09

Hi, I'd want know get thermal information on Centos 5.3 but get nohting. If I run acpitool -e, it outputs: acpitool -e Kernel version : 2.6.18-92.1.18.20060707 - ACPI version : 20060707 ----------------------------------------------------------- Battery status : <error reading info> Function Do_AC_Info_Sys: could not read directory /sys/class/power_supply/ Make sure your kernel has ACPI AC adapter support enabled. Fan : <not available> CPU type : Intel(R) Xeon(R) CPU 5110 @ 1.60GHz CPU speed : 1595.980 MHz Cache size : 4096 KB Bogomips : 3193.92 Bogomips : 3191.86 # of CPU's found : 2 Processor ID : 0 Bus mastering control : no Power management : no Throttling control : yes Limit interface : yes Active C-state : C1 C-states (incl. C0) : 1 T-state count : 8 Active T-state : T0 Processor ID : 1 Bus mastering control : no Power management : no Throttling control : yes Limit interface : yes Active C-state : C1 C-states (incl. C0) : 1 T-state count : 8 Active T-state : T0 Thermal info : <not available> Device Sleep state Status --------------------------------------- 1. PCI0 5 disabled And: grep THERMAL /boot/config-2.6.18-92.el5 CONFIG_X86_MCE_P4THERMAL=y CONFIG_ACPI_THERMAL=y Am I doing something wrong? Thanks in advance! -- -- Open Kairos http://www.openkairos.com Watch More TV http://sebelk.blogspot.com Sergio Belkin -

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Re: [CentOS] Problems with Adobe flash-plugin and Firefox-3.5.x under CentOs-5.3 (yum up to date) => libcurl.so.3/libcurl.so.4 missing
by Martin Knoblauch 20 Sep '09

20 Sep '09

----- Original Message ---- > From: Martin Knoblauch <spamtrap(a)knobisoft.de> > To: Centos Discussions <centos(a)centos.org> > Sent: Monday, September 14, 2009 3:16:20 PM > Subject: Problems with Adobe flash-plugin and Firefox-3.5.x under CentOs-5.3 (yum up to date) > > 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? > The problem turns out that libflashplayer.so (Version 10.x) is looking for dynamically loading libcurl.so.3 or libcurl.so.4. This dependency is neither documented, nor present in the flash-plugin RPMs from Adobe (both 32- and 64-bit). The dependency probably should also be present in the firefox RPM itself. I found out by chance when the problem went away after installing the curl.i386 package to get firefox building on my system. Cheers Martin

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Apache: confusion about virtual hosts and DNS on a local network
by Niki Kovacs 20 Sep '09

20 Sep '09

Hi, I set up a webserver with Apache on one of the machines on the local network. There's a DNS configured for the LAN, with a dummy domain name (presbytere.local), and every machine is pingable by its hostname. The webserver runs on the machine 'buildbox'. The webserver actually has two (static) websites on it, for testing and fiddling purposes. Each site's pages are stored respectively under /var/www/html/microlinux and /var/www/html/kikinovak. I can reach the two websites from any machine on the local network by opening a web browser at http://buildbox/microlinux/ or http://buildbox.presbytere.local/microlinux/ for the first website, and http://buildbox/kikinovak resp. http://buildbox.presbytere.local/kikinovak for the second website. So far so good. Now I'd like to setup two virtual hosts on the server, so I can access the first site via http://microlinux.buildbox and the second site via http://kikinovak.buildbox. I tried various combinations that seemed to make sense, but to no avail. Here's what I *think* my /etc/httpd/conf/httpd.conf should look like: NameVirtualHost *:80 <VirtualHost *:80> ServerAdmin info(a)microlinux.fr DocumentRoot /var/www/html/microlinux ServerName buildbox.presbytere.local ServerAlias microlinux.buildbox.presbytere.local ErrorLog logs/microlinux-error_log CustomLog logs/microlinux-access_log common </VirtualHost> But that doesn't work out (yes, I restarted httpd :oD), because I think what's missing here is that I have to somehow add microlinux.buildbox (and later kikinovak.buildbox) to my local DNS server (only how?)... Here's my current Bind configuration for the local network: First, /var/named/zone.local.presbytere: ; ; Zone DNS pour presbytere.local ; $ORIGIN presbytere.local. $TTL 1D @ IN SOA babasse hostmaster ( 2009070201 ; serial 8H ; refresh 4H ; retry 4W ; expire 1D ) ; minimum ; babasse.presbytere.local est le serveur de noms (NS) pour ce domaine NS babasse ; au cas où quelqu'un ferait une requête pour localhost.presbytere.local localhost A 127.0.0.1 ; nos machines babasse A 192.168.1.1 buildbox A 192.168.1.2 lifebook A 192.168.1.3 raymonde A 192.168.1.4 jukebox A 192.168.1.5 frankenstein A 192.168.1.6 ap A 192.168.1.253 modem A 192.168.1.254 And then, /var/named/revp.192.168.1: ; ; Résolution inverse pour le réseau 192.168.1.0 ; $ORIGIN 1.168.192.in-addr.arpa. $TTL 1D @ IN SOA babasse.presbytere.local. contact.kikinovak.net. ( 2009070201 ; serial 28800 ; refresh (8 hours) 14400 ; retry (4 hours) 2419200 ; expire (4 weeks) 86400 ; minimum (1 day) ) ; Définit le serveur de noms faisant autorité NS babasse.presbytere.local. ; Nos machines 1 PTR babasse.presbytere.local. 2 PTR buildbox.presbytere.local. 3 PTR lifebook.presbytere.local. 4 PTR raymonde.presbytere.local. 5 PTR jukebox.presbytere.local. 6 PTR frankenstein.presbytere.local. 253 PTR ap.presbytere.local. 254 PTR modem.presbytere.local. I admit I'm a bit confused, and I don't know if I succeeded in accurately describing my ignorance here. Any suggestions? Niki

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Discuss September 2009