Discuss November 2009

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311 participants
290 discussions

Who's eating our bandwidth?
by Niki Kovacs 05 Nov '09

05 Nov '09

Hi, I've recently setup a new server for our public libraries. For the last two years, this has been my first "big" job, since it involves networking eleven small to medium size public libraries. There was a hiccup some time ago when the administration hiring me wanted to do it on their own, but it took them less than two weeks to get the server hacked and lose everything. So they decided to hire me back :o) I've rented a little dedicated server at the french provider Ikoula. Really a small thing, a KVM amounting to 1/2 a processor core, 512 MB RAM and 25 GB of disk space. Usually there should be no more than like ten people working simultaneously on the library management software (running atop MySQL). For the last few days, users reported that the install was "terribly slow". I checked, and indeed, the application took quite some time to respond. First thing, I wonder if the configuration I chose is too modest for the setup. Then, I took a peek in /var/log/httpd and the *-access.log files show quite some activity. Some haphazard whois on various IP addresses show me that these are no library users from around here. Like: Bogota?!? Peking?!? And quite some search engines. Since I don't need search engines for our application, I'm going to have to find a way to banish these. The log files are not very handy to decipher, so I googled a bit, and I think today I'm going to check out AWStats, which seems to be the right thing to use in that case. I'm also wondering about activity on other ports, but here also I'm taking stabs in the dark. Probably SSH, but I don't know where eventual failed attempts get logged. I also googled a bit, and I think in this domain, fail2ban will be my next experiment. I have this strange feeling that the next step in the "wise" direction consists in describing my ignorance :o) Any suggestions? Cheers from the sunny south of France, Niki

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MySQL installation problem
by Victor Subervi 05 Nov '09

05 Nov '09

Hi; It's been a while since I controlled my own server and I'm rusty. Trying to install mysql yum install mysql All looks well. Here's what happens: [root@13gems www]# mysql ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) [root@13gems www]# mysql -u root -p Enter password: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) There's no mysqld in the ps wax. Please advise. beno

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Real world report for the Newsletter
by Geerd-Dietger Hoffmann 05 Nov '09

05 Nov '09

Hey The last "Newsletter survey" found that many people are interested in how CentOS is used and what people do with it, I would like to invite anyone who has some spare time or has something to share to write a little article about how they are using CentOS. I suppose interesting stuff would be how many machines, how you manage them, what programs you use, stuff that has happened and stopped production (even funny stuff of the likes of "rat in fuse") and pretty much what ever you want. If you don't want personal data appearing for security reasons we can work something out so that your server safety is not affected. Cheers and thanks for the help. Didi ---- My www page: www.ribalba.de Email / Jabber: ribalba(a)gmail.com Skype : ribalba

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Gosa (was: user management )
by Alan McKay 05 Nov '09

05 Nov '09

>> http://gosa-project.org/ This looks VERY interesting!!! As for the requirements for a latter version of PHP, is this for every host? Or just the management host? I'm not opposed to running a recent copy of Fedora Core for this. Or not even opposed to using a more recent version of PHP than is in the Centos Distro. cheers, -Alan -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food"

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CentOS-announce Digest, Vol 57, Issue 3
by centos-announce-request＠centos.org 05 Nov '09

05 Nov '09

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2009:1548 Important CentOS 5 i386 kernel Update (Karanbir Singh) 2. CESA-2009:1548 Important CentOS 5 x86_64 kernel Update (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Wed, 4 Nov 2009 19:57:14 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2009:1548 Important CentOS 5 i386 kernel Update To: centos-announce(a)centos.org Message-ID: <20091104195714.GA24245(a)tantra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2009:1548 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2009-1548.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 7a3ad567ffd9428b6f4a6491f63fd737 kernel-2.6.18-164.6.1.el5.i686.rpm 602b60573c30fea8bbe1a4e4b7a25441 kernel-debug-2.6.18-164.6.1.el5.i686.rpm 951d8c5a3c7ff9a373aea5510ccd311e kernel-debug-devel-2.6.18-164.6.1.el5.i686.rpm fbf006837f52c45f27c7c013004a9e88 kernel-devel-2.6.18-164.6.1.el5.i686.rpm 3682b14aa035fbc9fc94b55fcbdfc263 kernel-doc-2.6.18-164.6.1.el5.noarch.rpm 98d5d15788ab76c16073f80c15b8ef70 kernel-headers-2.6.18-164.6.1.el5.i386.rpm d3f1bf27a3f155e1f0638b7986a8da2b kernel-PAE-2.6.18-164.6.1.el5.i686.rpm 5e4056dfdbafe877b0b82e41587f82f7 kernel-PAE-devel-2.6.18-164.6.1.el5.i686.rpm 8b9dea3afb4eb18b8be108d3055e2c82 kernel-xen-2.6.18-164.6.1.el5.i686.rpm 45ae608d985341a771e72c7545084e9d kernel-xen-devel-2.6.18-164.6.1.el5.i686.rpm Source: 9e2532a82954b718f327e5fa0e395eac kernel-2.6.18-164.6.1.el5.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Wed, 4 Nov 2009 19:57:17 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2009:1548 Important CentOS 5 x86_64 kernel Update To: centos-announce(a)centos.org Message-ID: <20091104195717.GA24260(a)tantra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2009:1548 Important Upstream details at : https://rhn.redhat.com/errata/RHSA-2009-1548.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: b7551c56bf76d81e81220257b6558734 kernel-2.6.18-164.6.1.el5.x86_64.rpm bf4eee759d5f23fffa3ce8b449b9d137 kernel-debug-2.6.18-164.6.1.el5.x86_64.rpm 20c19c5d386d25a07159af8d75d02f30 kernel-debug-devel-2.6.18-164.6.1.el5.x86_64.rpm 1e083159efe66f2bd1dc36e876536d10 kernel-devel-2.6.18-164.6.1.el5.x86_64.rpm aeccf89d235e9d8d4b2c3dc48a279342 kernel-doc-2.6.18-164.6.1.el5.noarch.rpm 9d10842657ddbb0f9f8baa51afba2f66 kernel-headers-2.6.18-164.6.1.el5.x86_64.rpm e0e01fe9c3851e7216d9c49f27c4ef9d kernel-xen-2.6.18-164.6.1.el5.x86_64.rpm 52c5317a155b34a8675f509142cff2ac kernel-xen-devel-2.6.18-164.6.1.el5.x86_64.rpm Source: 9e2532a82954b718f327e5fa0e395eac kernel-2.6.18-164.6.1.el5.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 57, Issue 3 **********************************************

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Redhat 7.3 as CentOS 5 domU
by Mindaugas Riauba 05 Nov '09

05 Nov '09

Hello, What is the simpliest way to run Redhat 7.3 server as CentOS 5 domU? I see that Xen emulates Intel PIIX ATA controller for HVM domUs but latest kernel of Redhat 7.3 (2.4.20-20.7smp) has no ata_piix kernel module yet. Is it possible to download it somewhere or there is another way? :) And I'd like to avoid reinstalling them with the new OS. Preferably they'd just die their own death in their little domUs. :) Regards, Mindaugas

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user management solution needed
by Alan McKay 05 Nov '09

05 Nov '09

Hey folks, What is the best way to manage users across multiple CentOS boxes? Ideally what I'd like to be able to do is have central control over who has access to which box from a minute-to-minute basis. e.g. User X needs access to Box A for 30 minutes - clickity, clickity and they have access for that long after which their access is automatically turned off. thanks, -Alan -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food"

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Re: [CentOS] Nagios check_file size in another machine [solved]
by kebo jantan 05 Nov '09

05 Nov '09

Thanks everyone, My problem is solved. yeah...i'm read the nrpe.pdf. On Wed, Nov 4, 2009 at 3:08 AM, Keith Keller <kkeller(a)speakeasy.net> wrote: > On Tue, Nov 03, 2009 at 08:08:27PM +0700, kebo jantan wrote: > > I just already. This on client > > > > [root@xmen ~]# ps -ef | grep -i snmp > > root 10505 10172 0 20:06 pts/0 00:00:00 grep -i snmp > > > > [root@cyclop ~]# ps -ef | grep -i nrpe > > root 10507 10172 0 20:06 pts/0 00:00:00 grep -i nrpe > > This won't really help you, since the default is to run nrpe out of > (x)inetd. > > On your nagios server, configure a service that uses check_nrpe to check > a named check on the remote host. Then, on the mysqld host, create a > checkcommand in nrpe.cfg to do the (local) check that you want to do. > NRPE will perform the check and send the result back to check_nrpe on > the nagios server. > > I believe that on the remote host you need the nagios-plugins and > nagios-nrpe packages, available from rpmforge. (The nagios server needs > the nagios-plugins-nrpe package in addition to the other nagios packages > you probably already have.) > > The config files are fairly well documented, and the PDF you were > referred to is very thorough. > > --keith > > > -- > kkeller(a)speakeasy.net > > > _______________________________________________ > CentOS mailing list > CentOS(a)centos.org > http://lists.centos.org/mailman/listinfo/centos > >

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Tripwire Question
by Al Sparks 05 Nov '09

05 Nov '09

I'm trying to run tripwire on a RHEL 5.4 box. I'm new to it. I'm getting errors: The object: "/ora" is on a different file system...ignoring. For one thing, it's not a different file system. It's not any different than the root partition, that tripwire will monitor. And I want tripwire to monitor it. I've been googling around, and have seen this error in all sorts of places, but with either no comment or, if a question is specifically asked about this, no answer to the question. Anyone out there know what the work around for this might be? === Al

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Ruby Enterprise Edition
by Stephen Nelson-Smith 05 Nov '09

05 Nov '09

I find myself needing a newer Ruby than is in the distro. I'm going to need to install this on a large number of machines, so packaging it would be ideal. REE seems the obvious candidate - unless other folk can recommend an alternative. I found the following spec: http://www.cherpec.com/wp-content/uploads/2009/10/ruby-enterprise.spec In my build environment I get: $ rpmbuild -tb ruby-enterprise.spec error: Name field must be present in package: (main package) error: Version field must be present in package: (main package) error: Release field must be present in package: (main package) error: Summary field must be present in package: (main package) error: Group field must be present in package: (main package) error: License field must be present in package: (main package) I've not fixed this yet, but thought I'd ask if anyone else has a spec or package they can recommend, before I start reinventing wheels. Thanks, S.

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Discuss November 2009