Discuss December 2005

discuss@lists.centos.org

219 participants
328 discussions

sendmail problems errors
by Steven Vishoot 11 Dec '05

11 Dec '05

hello, i am having problems with sendmail when i am trying to restart it. this morning i woke up and found it not working and when i tried restarting it belched out these errors at me. [root@dusty init.d]# ./sendmail start Starting sendmail: 451 4.0.0 /etc/mail/sendmail.cf: line 91: fileclass: cannot open '/etc/mail/local-host-names': Group writable directory 451 4.0.0 /etc/mail/sendmail.cf: line 588: fileclass: cannot open '/etc/mail/trusted-users': Group writable directory [FAILED] this is what the sendmail.cf file says at line 91: # file containing names of hosts for which we receive email Fw/etc/mail/local-host-names and also at line 588: # this is equivalent to setting class "t" Ft/etc/mail/trusted-users Troot Tdaemon Tuucp now what am i missing. i am using centos 4.2 x86_64 thanks Steven "On the side of the software box, in the 'System Requirements' section, it said 'Requires Windows or better'. So I installed Linux."

2 4

sg device
by Tony Schreiner 10 Dec '05

10 Dec '05

What is the "sg" device? The reason I ask, is that I have a file server running CentOS 4.2 on a Dell Precision 1650. Disks are attached via QLogic FC. I backup to a Qualstar TLS-4222 tape changer, with AIT-2 tapes, which is connected over an Adaptec 29160 Ultra 160 SCSI. The software I'm using is Legato Networker version 7.1.2. I'm backing up a bit under 1 TB a month with this. Quite frequently these days (meaning once a month or two), the Networker software loses the ability to control the tape changer. Mount, unmount commands just don't work any more. The only way I can seem to fix it, is to use the Networker admin software to remove the robot, and tape device, and then recreate it with the Networker jbconfig command. The jbconfig command detects the Qualstar, and then detects /dev/sg3 as the tape device. Now Networker can use this device to move tapes around in the robot, but not to read and write. So I have to delete / dev/sg3 from the Networker configuration, and then add /dev/nst0. And then it works (for a while). So I'm wondering, why the software is setting me up with /dev/sg3 instead of /dev/nst0; and is there anything I can do about it. Bonus question if anyone else had a similar issue. Thanks, Tony Schreiner Boston College

2 2

Anyone here install Java Studio Creator with CentOS 4?
by Preston Crawford 10 Dec '05

10 Dec '05

I tried yesterday. During the install it yacks at trying to install the application server that comes with Java Studio Creator. Complains about lacking libstdc++ or compat-libstdc++ or something like that. Anyone see this or know what to do about it? I ask here in case there is some trick to getting a piece of software (that's obviously looking for one version of libstdc++) to see what's installed. According to this page (http://developers.sun.com/prodtech/javatools/jscreator/reference/docs/Start…) it works with RHEL 2.1. What changed so drastically in this regard between there and here? Preston

3 12

Anyone run lighttpd + fastcgi + PHP?
by Preston Crawford 10 Dec '05

10 Dec '05

I have a website that needs to run Squirrelmail (which is PHP based), but I'd like to get it feeding into Ruby on Rails as well. I'm looking at lighttpd because it seems to be easier to get it integrated with Rails. I'm curious, though, how difficult it is to get PHP running with it in this configuration. Overall lighttpd seems to be pretty easy to use. However, it looks like I may have to recompile PHP. I was curious to see if anyone has done this with CentOS or if there are RPMs out there in the world that would allow me to avoid this. Preston

2 1

Post postinstall configuration
by Matt Lawrence 10 Dec '05

10 Dec '05

I'm building kickstart files for use in doing automated installs of various systems. I would prefer to do fairly minimal amounts of work in the "%post" and postpone further installation and configuration until after the first reboot (or even later). It should be easy enough to add something to rc.local that will download scripts and run them, but I'm wondering if there is a preferred technique. I haven't found anything in the Red Hat documentation I've read so far. This isn't about figuring out a way to do the update, it's about trying to follow the "Law Of Least Astonishment". I've dealt with too many really screwed up systems that had customised stuff everywhere and nothing worked as expected. Suggestions? -- Matt

5 8

Netcell RAID cards
by Ugo Bellavance 10 Dec '05

10 Dec '05

Hi, Anyone tried netcell products on Centos 3 or 4? They claim driverless operation under WinXP, but in linux the only doc that is related with CentOS would be the Fedora core 2 (http://www.netcell.com/support/Fedora_Core2_readme.txt) and requires a kernel rebuild. I'd like to know if it would be possible to install CentOS directly on drives on such a card, without needing a build box... http://www.tomshardware.com/2003/11/28/kill_scsi_ii/ Regards, -- Ugo -> Please don't send a copy of your reply by e-mail. I read the list. -> Please avoid top-posting, long signatures and HTML, and cut the irrelevant parts in your replies.

3 3

RE: Keeping data on 2 servers in sync !
by Jonathan Darton 10 Dec '05

10 Dec '05

On 12/7/05, Denis Croombs <denis(a)croombs.org> wrote: > On 12/6/05, Jonathan Darton <jdarton(a)ibigroup.com> wrote: > >> >I want to build 2 servers (both running samba) to provide file > >> >storage to 2 offices (approx 100 miles apart, linked via DSL) but all > >> >data writen to 1 server must also be saved to the other server. > >> >Both servers would also allow users to access the data via a VPN thus > >> >allowing 1 office with a failed server to access the other server via > >> >the vpn and still see the data from both offices. > >> >I currently have 1 server working but we want to add the second > >> >office to the system. (Currently 1 office has 10 users and the second > >> >office has 1 user connected via VPN ) but the second office will have > >> >20 within 12 > >> months > >> >and the first will have 35 soon )) > >> > >> >Has anyone done anything like this ? > >> > >> I am currently synchronizing multiple office locations using a program > >> called unison. Unison (http://www.cis.upenn.edu/~bcpierce/unison/) is > >> a very well written program that can perform 2 way file > >> synchronization. There are many configurable options with unison and I > recommend that you check it out. > >> In each office I have a PII350 128RAM Fedora or CentOS server running > >> unison and the files are accessed via samba. I also configure samba to > >> hide (veto) all of the temporary files used during synchronization. > >> For redundancy I place a slave server with each master server that > >> backs up all the user data / file system using rsync. This way if one > >> of my $5 PII servers catches fire I can automatically switch over with no > downtime for the users. > >> > >> The only downfall I have encountered is with Autocad files not > >> properly reading the synchronized .dwl lock file and more than one > >> user working on the same file. As a work around for this I have > >> configured Unison to keep a backup of the last 20 versions of a file. > >> This way I can always hit my backups to retreive lost data. As a side > >> note, if anyone knows a work around for the stubborn autocad dwl lock > file let me know :))! > >> > >> In any case my implementation has allowed me to synchronize file > >> systems between 4 offices (3 in Canada, 1 in USA), using recycled > >> hardware that was otherwise going to be donated/trashed. > >> > >> Let me know if you have any further questions. > > > >I'm about to do a Unison setup on two CentOS servers, so I'm thrilled to > see this response. I also work with Architects >>sometimes, so I'm > interested to hear about the dwl lock file issue. > > > >My one compound question: how are you invoking Unison? In batch mode, with > cron? How often? Wat other options did you > >consider before settling on the scheme you use? > > I see the project is no longer supported, do you have rpms for it ? > > Thanks >It's not that it's no longer supported, really, just that the project >that initiated it is not an officially-funded academic project. It has >actually been updated since the termination of the project, it looks >like. >I haven't installed it on CentOS yet but I got FC4 rpms from fedora >extras (I just typed 'yum install unison' and it worked). I think it's >in pretty common usage in RHEL too, so it can't be too hard to find >for CentOS, right? (But let us know what you turn up :-)). I created a script that is run by cron every minute. The script creates a lock file for the session, rsyncs the changes to the backup server, synchronizes offices using unison, deletes the lock file. Unison is executed in "batch" and "silent" mode so that no output is generated and mailed by cron. One other thing you need to consider is the size of the file system you are trying to synchronize. I have a very large directory structure in two offices which required running unison a second time splitting up the synchronization into two sessions. This can easily be done by ignoring a certain path/paths and then synchronizing them in the next session. If you are thinking of synchronizing between more than 2 locations, you need to plan the fastest route (ie. A<->B<->C or B<->A<->C). I have had no problems synchronizing between more than two locations. For all of my implementations using Fedora or CentOS operating systems I have downloaded the unison source, installed the ocaml compiler (easy to find for centos/fedora use google) and compiled from source. I have never had a problem. Another benefit to the implementation that I have been using is the fact that employees in each office can work on files on the server as long as the internal network is functioning, regardless if the synchronization link / externel connection is working. The synchronization is basically transparent to the user, and if it happens to go down it will pick up where it left off as soon as it can regain a connection. Let me know if you require any further information. A. Jonathan Darton, B.COMM CIS System Consultant

8 13

perl module
by hiep＠ee.ucr.edu 09 Dec '05

09 Dec '05

Hi list, I have trouble install the following perl modules to my Centos 4.2 server and I need help Digest::SHA1 Digest::HMAC Net::DNS Time::HiRes HTML::Tagset HTML::Parser Pod::Usage Parse::Syslog Statistics::Distributions I tried "perl -MCPAN -e shell" and then "install Pod::Usage" and I got the following errors: CPAN: Storable loaded ok Going to read /root/.cpan/Metadata Warning: Found only 0 objects in /root/.cpan/Metadata CPAN: LWP::UserAgent loaded ok Fetching with LWP: ftp://ftp.perl.org/pub/CPAN/authors/01mailrc.txt.gz LWP failed with code[500] message[LWP::Protocol::MyFTP: Bad hostname 'ftp.perl.org'] Fetching with Net::FTP: ftp://ftp.perl.org/pub/CPAN/authors/01mailrc.txt.gz Trying with "/usr/bin/links -source" to get ftp://ftp.perl.org/pub/CPAN/authors/01mailrc.txt.gz ERROR at dump.c:188: Host not found System call "/usr/bin/links -source "ftp://ftp.perl.org/pub/CPAN/authors/01mailrc.txt.gz" > /root/.cpan/sources/authors/01mailrc.txt" returned status 1 (wstat 256) Warning: expected file [/root/.cpan/sources/authors/01mailrc.txt.gz] doesn't exist Trying with "/usr/bin/wget -O -" to get ftp://ftp.perl.org/pub/CPAN/authors/01mailrc.txt.gz --09:54:41-- ftp://ftp.perl.org/pub/CPAN/authors/01mailrc.txt.gz => `-' Resolving ftp.perl.org... failed: Name or service not known. System call "/usr/bin/wget -O - "ftp://ftp.perl.org/pub/CPAN/authors/01mailrc.txt.gz" > /root/.cpan/sources/authors/01mailrc.txt" returned status 1 (wstat 256) Warning: expected file [/root/.cpan/sources/authors/01mailrc.txt.gz] doesn't exist Issuing "/usr/kerberos/bin/ftp -n" ftp: ftp.perl.org: unknown host Not connected. Local directory now /root/.cpan/sources/authors Not connected. Not connected. Not connected. Not connected. Not connected. Not connected. Bad luck... Still failed! Can't access URL ftp://ftp.perl.org/pub/CPAN/authors/01mailrc.txt.gz. Please check, if the URLs I found in your configuration file () are valid. The urllist can be edited. E.g. with 'o conf urllist push ftp://myurl/' Could not fetch authors/01mailrc.txt.gz Fetching with LWP: ftp://ftp.perl.org/pub/CPAN/modules/02packages.details.txt.gz LWP failed with code[500] message[LWP::Protocol::MyFTP: Bad hostname 'ftp.perl.org'] Fetching with Net::FTP: ftp://ftp.perl.org/pub/CPAN/modules/02packages.details.txt.gz Trying with "/usr/bin/links -source" to get ftp://ftp.perl.org/pub/CPAN/modules/02packages.details.txt.gz ERROR at dump.c:188: Host not found System call "/usr/bin/links -source "ftp://ftp.perl.org/pub/CPAN/modules/02packages.details.txt.gz" > /root/.cpan/sources/modules/02packages.details.txt" returned status 1 (wstat 256) Warning: expected file [/root/.cpan/sources/modules/02packages.details.txt.gz] doesn't exist Trying with "/usr/bin/wget -O -" to get ftp://ftp.perl.org/pub/CPAN/modules/02packages.details.txt.gz --09:54:47-- ftp://ftp.perl.org/pub/CPAN/modules/02packages.details.txt.gz => `-' Resolving ftp.perl.org... failed: Name or service not known. System call "/usr/bin/wget -O - "ftp://ftp.perl.org/pub/CPAN/modules/02packages.details.txt.gz" > /root/.cpan/sources/modules/02packages.details.txt" returned status 1 (wstat 256) Warning: expected file [/root/.cpan/sources/modules/02packages.details.txt.gz] doesn't exist Issuing "/usr/kerberos/bin/ftp -n" ftp: ftp.perl.org: unknown host Not connected. Local directory now /root/.cpan/sources/modules Not connected. Not connected. Not connected. Not connected. Not connected. Not connected. Bad luck... Still failed! Can't access URL ftp://ftp.perl.org/pub/CPAN/modules/02packages.details.txt.gz. Please check, if the URLs I found in your configuration file () are valid. The urllist can be edited. E.g. with 'o conf urllist push ftp://myurl/' Could not fetch modules/02packages.details.txt.gz Fetching with LWP: ftp://ftp.perl.org/pub/CPAN/modules/03modlist.data.gz LWP failed with code[500] message[LWP::Protocol::MyFTP: Bad hostname 'ftp.perl.org'] Fetching with Net::FTP: ftp://ftp.perl.org/pub/CPAN/modules/03modlist.data.gz Trying with "/usr/bin/links -source" to get ftp://ftp.perl.org/pub/CPAN/modules/03modlist.data.gz ERROR at dump.c:188: Host not found System call "/usr/bin/links -source "ftp://ftp.perl.org/pub/CPAN/modules/03modlist.data.gz" > /root/.cpan/sources/modules/03modlist.data" returned status 1 (wstat 256) Warning: expected file [/root/.cpan/sources/modules/03modlist.data.gz] doesn't exist Trying with "/usr/bin/wget -O -" to get ftp://ftp.perl.org/pub/CPAN/modules/03modlist.data.gz --09:54:53-- ftp://ftp.perl.org/pub/CPAN/modules/03modlist.data.gz => `-' Resolving ftp.perl.org... failed: Name or service not known. System call "/usr/bin/wget -O - "ftp://ftp.perl.org/pub/CPAN/modules/03modlist.data.gz" > /root/.cpan/sources/modules/03modlist.data" returned status 1 (wstat 256) Warning: expected file [/root/.cpan/sources/modules/03modlist.data.gz] doesn't exist Issuing "/usr/kerberos/bin/ftp -n" ftp: ftp.perl.org: unknown host Not connected. Local directory now /root/.cpan/sources/modules Not connected. Not connected. Not connected. Not connected. Not connected. Not connected. Bad luck... Still failed! Can't access URL ftp://ftp.perl.org/pub/CPAN/modules/03modlist.data.gz. Please check, if the URLs I found in your configuration file () are valid. The urllist can be edited. E.g. with 'o conf urllist push ftp://myurl/' Could not fetch modules/03modlist.data.gz Going to write /root/.cpan/Metadata Warning: Cannot install Pod::Usage, don't know what it is. Try the command i /Pod::Usage/ to find objects with matching identifiers. Then I tried to download individual module and install it manually, but I got dependency warnings. Please help!!! Thanks. JC

10 13

Manual update
by Jean Lee 09 Dec '05

09 Dec '05

Hi all, I have a problem :). On my CentOS workstation, I had glib2-2.4.7-1 installed. This is the last version which is provided by the CentOS distribution However, I need to install a software which requires an higher glib2 version so : I took the source of glib2-2.8.4-1 on the gtk+ web site and creates the rpm installation file with "chkinstall" I obtained the glib2-2.8.4-1.i386.rpm file Then I execute yum to update the glib2 package : yum localupdate glib2-2.8.4-1.i386.rpm And know, I have a lot of problems. Surely because some library files where overwritten with the newer version files (Right or wrong ?).... Is there a way to recover the problem ? (Now, I can't launch a terminal under gnome) Well, I have broken the distribution and I feel that I will have to reinstall it. For the next time that I will try to update a package manually : Is there a safe way to update manually the glib2 library without crashing all the distribution ? Or is there a way to install the latest version of glib2 in order to have the two libraries versions installed (glib2-2.4.7-1 and glib2-2.8.4-1)? or something else ????? Thank you for your answers, Jean LEE

3 2

Hald
by Sam Drinkard 09 Dec '05

09 Dec '05

No manpage or other info in the system about the hald or hal. What little I did find on a RH site did not really enlighten me that much. Is there some obscure documentation somewhere about the hald and its assets and attributes? -- Snowman

2 1

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Discuss December 2005