Discuss November 2010

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259 participants
221 discussions

Nagios installation problem
by Ben McGinnes 05 Nov '10

05 Nov '10

Hello, Has anyone managed a successful installation of Nagios using the RPMForge packages on CentOS 5.5? It looks like it should have worked, I followed the guides for Fedora and CentOS here (with appropriate path adjustments): http://nagios.sourceforge.net/docs/3_0/quickstart-fedora.html http://wiki.centos.org/HowTos/Nagios The SELinux policies look fine (I tend to ignore instructions to permanently disable SELinux, if I'm not using SELinux then there's no reason not to return to Slackware): # semodule -l | grep nagios nagios 1.1.0 # The nagios.cfg check gave the all clear: Reading configuration data... Read main config file okay... Processing object config file '/etc/nagios/objects/commands.cfg'... Processing object config file '/etc/nagios/objects/contacts.cfg'... Processing object config file '/etc/nagios/objects/timeperiods.cfg'... Processing object config file '/etc/nagios/objects/templates.cfg'... Processing object config file '/etc/nagios/objects/localhost.cfg'... Read object config files okay... Running pre-flight check on configuration data... Checking services... Checked 8 services. Checking hosts... Checked 1 hosts. Checking host groups... Checked 1 host groups. Checking service groups... Checked 0 service groups. Checking contacts... Checked 1 contacts. Checking contact groups... Checked 1 contact groups. Checking service escalations... Checked 0 service escalations. Checking service dependencies... Checked 0 service dependencies. Checking host escalations... Checked 0 host escalations. Checking host dependencies... Checked 0 host dependencies. Checking commands... Checked 24 commands. Checking time periods... Checked 5 time periods. Checking for circular paths between hosts... Checking for circular host and service dependencies... Checking global event handlers... Checking obsessive compulsive processor commands... Checking misc settings... Total Warnings: 0 Total Errors: 0 Things look okay - No serious problems were detected during the pre-flight check My adjustment of other config files is minimal, essentially just setting the email address to deliver notifications to. Yet every time I try to start the service I get this: # service nagios start nagios is stopped Configuration validation failed [FAILED] The error appears to be identical to that reported here: http://forums.meulie.net/viewtopic.php?f=61&t=6538&start=0 Like the original poster of the thread on that forum, I am able to start it with "nagios -d /etc/nagios/nagios.cfg" though various web pages continue to report an unspecified configuration error. Does anyone have any ideas? Regards, Ben

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Auto-Re: CentOS Digest, Vol 70, Issue 5
by 韦加宁 05 Nov '10

05 Nov '10

信已收到,谢谢!

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CentOS-announce Digest, Vol 69, Issue 3
by centos-announce-request＠centos.org 05 Nov '10

05 Nov '10

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-2010:0824 Moderate CentOS 4 i386 mysql - security update (Tru Huynh) 2. CESA-2010:0824 Moderate CentOS 4 x86_64 mysql - security update (Tru Huynh) 3. CESA-2010:0825 Moderate CentOS 5 i386 mysql Update (Tru Huynh) 4. CESA-2010:0825 Moderate CentOS 5 x86_64 mysql Update (Tru Huynh) 5. CEBA-2010:0816 CentOS 5 i386 tetex Update (Tru Huynh) 6. CEBA-2010:0816 CentOS 5 x86_64 tetex Update (Tru Huynh) 7. CEEA-2010:0821 CentOS 5 i386 apr Update (Tru Huynh) 8. CEEA-2010:0821 CentOS 5 x86_64 apr Update (Tru Huynh) 9. CEBA-2010:0823 CentOS 5 i386 tcsh Update (Tru Huynh) 10. CEBA-2010:0823 CentOS 5 x86_64 tcsh Update (Tru Huynh) 11. http://rhn.redhat.com/errata/CEBA-2010:0714 CentOS 5 x86_64 kvm Update (Tru Huynh) 12. CEBA-2010:0822 CentOS 5 i386 openmotif Update (Tru Huynh) 13. CEBA-2010:0822 CentOS 5 x86_64 openmotif Update (Tru Huynh) ---------------------------------------------------------------------- Message: 1 Date: Fri, 5 Nov 2010 15:22:54 +0100 From: Tru Huynh <tru(a)centos.org> Subject: [CentOS-announce] CESA-2010:0824 Moderate CentOS 4 i386 mysql - security update To: centos-announce(a)centos.org Message-ID: <20101105142254.GA24160(a)sillage.bis.pasteur.fr> Content-Type: text/plain; charset="us-ascii" CentOS Errata and Security Advisory CESA-2010:0824 mysql security update for CentOS 4 i386: https://rhn.redhat.com/errata/RHSA-2010-0824.html The following updated file has been uploaded and is currently syncing to the mirrors: i386: updates/i386/RPMS/mysql-4.1.22-2.el4_8.4.i386.rpm updates/i386/RPMS/mysql-bench-4.1.22-2.el4_8.4.i386.rpm updates/i386/RPMS/mysql-devel-4.1.22-2.el4_8.4.i386.rpm updates/i386/RPMS/mysql-server-4.1.22-2.el4_8.4.i386.rpm source: updates/SRPMS/mysql-4.1.22-2.el4_8.4.src.rpm You may update your CentOS-4 i386 installations by running the command: yum update mysql Tru -- Tru Huynh (mirrors, CentOS i386/x86_64 Package Maintenance) http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B

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IP forwarding and OpenVPN
by Bart Schaefer 05 Nov '10

05 Nov '10

I have a CentOS 4 server that acts as a gateway for a small LAN. The lower half of the 192.168.144 address space is the LAN on eth1, the upper half is the WAN on eth0, and the default route is to 192.168.144.254 which is my DSL router; this has been working fine for years. However, it's recently become convenient to connect the server to a VPN from time to time, for which I've set up OpenVPN. This works for connections originating from the server itself, but breaks for machines on the LAN when accessing IPs in the ranges that are routed to the VPN. Connections to IPs not in the private network still work as before. Can anyone advise what I may need to change to configure the server to forward packets to the VPN? Pointers to documentation are welcome. Thanks. /etc/sysctl.conf has: net.ipv4.ip_forward = 1 net.ipv4.conf.default.rp_filter = 1 net.ipv4.conf.default.accept_source_route = 0

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new apache mod on centos? Google page speed?
by Bob Hoffman 05 Nov '10

05 Nov '10

Just saw this article http://news.yahoo.com/s/mashable/20101103/tc_mashable/google_helps_autotune… (/rant - stupid seo links, lame /rant off) it mentions it is set up for linux distros, notably centos. Anyone use this yet? Affect the auto yum update at all?

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Re: [CentOS] was, PATA Hard Drive woes, is "SMART"
by m.roth＠5-cent.us 05 Nov '10

05 Nov '10

Folks, Thanks a *lot* to those who suggested I try fsck -cc - that took six hours, and at the end, I was standing there, and it tells me that there's two back blocks, one was /dead/base.pp, and... (wait for it) bad blocks, in node 1. I said yes, fix them, and rebooted, and I don't see complaints. mark "and there was much rejoicing"

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orphan inodes deleted issue
by David S. 04 Nov '10

04 Nov '10

Dear All, My servers running on CentOS 5.5 x86_64 with kernel 2.6.18.194.17.4.el gigabyte motherboard and 2 harddisks (seagate 500GB). My CentOS box configured RAID 1, yesterday and today I had the same problem on 2 servers with same configuration. See the following error messages for details: EXT3-fs: INFO: recovery required on readonly filesystem. EXT3-fs: write access will be enabled during recovery. kjournald starting. Commit interval 5 seconds EXT3-fs: md1: orphan cleanup on readonly fs ext3_orphan_cleanup: deleting unreferenced inode 2010087 ext3_orphan_cleanup: deleting unreferenced inode 259361 ext3_orphan_cleanup: deleting unreferenced inode 972510 ext3_orphan_cleanup: deleting unreferenced inode 2009841 ext3_orphan_cleanup: deleting unreferenced inode 2010102 ext3_orphan_cleanup: deleting unreferenced inode 2010079 ext3_orphan_cleanup: deleting unreferenced inode 2010078 ext3_orphan_cleanup: deleting unreferenced inode 2009831 ext3_orphan_cleanup: deleting unreferenced inode 2010001 ext3_orphan_cleanup: deleting unreferenced inode 2009991 ext3_orphan_cleanup: deleting unreferenced inode 2009989 ext3_orphan_cleanup: deleting unreferenced inode 2009811 ext3_orphan_cleanup: deleting unreferenced inode 2009806 ext3_orphan_cleanup: deleting unreferenced inode 2009978 ext3_orphan_cleanup: deleting unreferenced inode 2009976 ext3_orphan_cleanup: deleting unreferenced inode 2009972 ext3_orphan_cleanup: deleting unreferenced inode 2009828 ext3_orphan_cleanup: deleting unreferenced inode 2009964 ext3_orphan_cleanup: deleting unreferenced inode 2009865 ext3_orphan_cleanup: deleting unreferenced inode 2009863 ext3_orphan_cleanup: deleting unreferenced inode 2009830 ext3_orphan_cleanup: deleting unreferenced inode 2009809 ext3_orphan_cleanup: deleting unreferenced inode 2009823 ext3_orphan_cleanup: deleting unreferenced inode 2009856 ext3_orphan_cleanup: deleting unreferenced inode 2009807 ext3_orphan_cleanup: deleting unreferenced inode 2009799 ext3_orphan_cleanup: deleting unreferenced inode 2009794 EXT3-fs: md1: 27 orphan inodes deleted EXT3-fs: recovery complete. It's my array: $ df -h Filesystem Size Used Avail Use% Mounted on /dev/md1 9.5G 735M 8.3G 8% / /dev/md7 38G 6.7G 30G 19% /var /dev/md6 15G 4.5G 9.1G 33% /usr /dev/md5 103G 45G 54G 46% /backup /dev/md3 284G 42G 228G 16% /home /dev/md2 2.0G 214M 1.7G 12% /tmp /dev/md0 243M 24M 207M 11% /boot I've been searching on google but I can't find the explanation for this problem. It's a BUG? :D Thank You very much :D -- - -- Best regards, David http://blog.pnyet.web.id

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generate signing subkey
by Tim Dunphy 04 Nov '10

04 Nov '10

hello all I need to generate a subkey in gpg in order to sign my emails. I already have a main key. how do I generate the subkey I need to encrypt emails? I have already run gpg --gen-key thanks -- Here's my RSA Public key: gpg --keyserver pgp.mit.edu --recv-keys 5A4873A9 Share and enjoy!!

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failure to import ldif into ldap
by Tim Dunphy 04 Nov '10

04 Nov '10

Thanks all.. I have read the man of ldif.... your advice has gotten me quite far both in my current implementation and in my overall understanding of LDAP which I am hoping grows with each passing day. In my attempt to build my current directory, I have taken a dump of my last successful implementation (which was created on FreeBSD 8.1) and substituted values for the dc=company and dc=com values with the correct ones for the current directory (attempting to implement under CentOS 5.4) and even tho the correct schemas are in place it is choking on this entry: # defaults, sudoers, Services, acadaca.com dn: cn=defaults,ou=sudoers,ou=Services,dc=acadaca,dc=net objectClass: top objectClass: sudoRole cn: defaults description: Default sudoOption's go here And again I should have all the schemas in place to make this work... include /etc/openldap/schema/core.schema include /etc/openldap/schema/cosine.schema include /etc/openldap/schema/inetorgperson.schema include /etc/openldap/schema/nis.schema include /etc/openldap/schema/misc.schema inlcude /etc/openldap/schema/sudoers.schema include /etc/openldap/schema/openldap.schema [root@ldap ldif]# ldapadd -h ldap -a -w secret -x -D "cn=Manager,dc=acadaca,dc=net" -f /home/tim/txt/ldif/acadaca-master.ldif adding new entry "cn=defaults,ou=sudoers,ou=Services,dc=acadaca,dc=net" ldapadd: Invalid syntax (21) additional info: objectClass: value #1 invalid per syntax Why this ldif will work in one directory but not another is a mystery at this point.. thanks again -- Here's my RSA Public key: gpg --keyserver pgp.mit.edu --recv-keys 5A4873A9 Share and enjoy!!

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Copying root partition
by Timothy Murphy 04 Nov '10

04 Nov '10

I recently transferred the / partition on my CentOS server from a small disk to a large disk, using "rsync -auvz". This works fine, except that I get dozens of selinux warnings when I re-boot. I'm running selinux in permissive mode. Is there any way to make sure that all the files in a partition are kosher as far as selinux is concerned? -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

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Discuss November 2010