Discuss January 2015

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166 participants
146 discussions

Kickstarting several *different* setups
by Ashley M. Kirchner 21 Jan '15

21 Jan '15

I'm currently using kickstart for installing new servers and have run into the following scenario: all the machines will have the same basic setup of packages, however they will each be configured for a specific task. For example, some will be mail-serving machines and won't need things like a web or mySQL server installed. Others will be web servers and do need those packages. So my question is, is there some way do determine via kickstart, what to install on that machine based on some criteria, possibly the IP that's being assigned to it, or MAC address, or something ... Right now I have one single kickstart setup that all the machines are going to use, then I manually install the additional packages one by one, on each machine. It would be helpful if I can somehow tell kickstart to do that. Suggestions?

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tg3 network link unstable
by Leon Fauster 19 Jan '15

19 Jan '15

Full updated EL6: Does someone have the same behaviour, unstable eth interface (tg3/no dhcp)? Jan 19 18:01:46 ane kernel: tg3 0000:04:00.0: eth0: Link is up at 1000 Mbps, full duplex Jan 19 18:01:46 ane kernel: tg3 0000:04:00.0: eth0: Flow control is on for TX and on for RX Jan 19 18:01:46 ane kernel: tg3 0000:04:00.0: eth0: EEE is enabled Jan 19 18:01:46 ane NetworkManager[1735]: <info> (eth0): carrier now ON (device state 8) Jan 19 18:02:17 ane kernel: tg3 0000:04:00.0: eth0: Link is down Jan 19 18:02:17 ane NetworkManager[1735]: <info> (eth0): carrier now OFF (device state 8, deferring action for 4 seconds) Jan 19 18:02:20 ane kernel: tg3 0000:04:00.0: eth0: Link is up at 1000 Mbps, full duplex Jan 19 18:02:20 ane kernel: tg3 0000:04:00.0: eth0: Flow control is on for TX and on for RX Jan 19 18:02:20 ane kernel: tg3 0000:04:00.0: eth0: EEE is enabled Jan 19 18:02:20 ane NetworkManager[1735]: <info> (eth0): carrier now ON (device state 8) Jan 19 18:02:23 ane kernel: tg3 0000:04:00.0: eth0: Link is down Jan 19 18:02:23 ane NetworkManager[1735]: <info> (eth0): carrier now OFF (device state 8, deferring action for 4 seconds) Jan 19 18:02:26 ane kernel: tg3 0000:04:00.0: eth0: Link is up at 1000 Mbps, full duplex Jan 19 18:02:26 ane kernel: tg3 0000:04:00.0: eth0: Flow control is on for TX and on for RX Jan 19 18:02:26 ane kernel: tg3 0000:04:00.0: eth0: EEE is enabled Jan 19 18:02:26 ane NetworkManager[1735]: <info> (eth0): carrier now ON (device state 8) Jan 19 18:02:50 ane kernel: tg3 0000:04:00.0: eth0: Link is down Jan 19 18:02:50 ane NetworkManager[1735]: <info> (eth0): carrier now OFF (device state 8, deferring action for 4 seconds) Jan 19 18:02:53 ane kernel: tg3 0000:04:00.0: eth0: Link is up at 1000 Mbps, full duplex Jan 19 18:02:53 ane kernel: tg3 0000:04:00.0: eth0: Flow control is on for TX and on for RX Jan 19 18:02:53 ane kernel: tg3 0000:04:00.0: eth0: EEE is enabled Jan 19 18:02:53 ane NetworkManager[1735]: <info> (eth0): carrier now ON (device state 8) Jan 19 18:03:11 ane kernel: tg3 0000:04:00.0: eth0: Link is down Jan 19 18:03:11 ane NetworkManager[1735]: <info> (eth0): carrier now OFF (device state 8, deferring action for 4 seconds) Jan 19 18:03:14 ane kernel: tg3 0000:04:00.0: eth0: Link is up at 1000 Mbps, full duplex Jan 19 18:03:14 ane kernel: tg3 0000:04:00.0: eth0: Flow control is on for TX and on for RX Jan 19 18:03:14 ane kernel: tg3 0000:04:00.0: eth0: EEE is enabled Jan 19 18:03:14 ane NetworkManager[1735]: <info> (eth0): carrier now ON (device state 8)

2 1

Documentation link on new Firefox CentOS 7 splash screen
by Mark LaPierre 19 Jan '15

19 Jan '15

Hey All, I just installed the newest version of Firefox that was pushed to production today. When I started Firefox the CentOS 7 Is Here splash screen was displayed. Out of curiosity I clicked on the [Documentation] tab at the top of the screen and got this: http://www.centos.org/docs/ Does anyone else see a problem here? -- _ °v° /(_)\ ^ ^ Mark LaPierre Registered Linux user No #267004 https://linuxcounter.net/ ****

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shutdown -h doesn't
by Devin Reade 17 Jan '15

17 Jan '15

I've got a fresh CentOS 7 test machine, fully patched. The command: shutdown -h now surprisingly does not halt the machine. Instead it reboots it. WTF? I found the following Debian discussion which seems to be the same issue: <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=766338> However, removing kexec-tools in this case did not solve the problem. Nor does "systemctl poweroff" work. Does anyone else see this? No, nothing is filed in bugzilla yet. Devin

4 5

What's up with Firefox/Thundrebird
by Mark LaPierre 16 Jan '15

16 Jan '15

Hey All, Has anyone had trouble with Firefox/Thunderbird? When I log on if I start Thunderbird first then I can't start Firefox. Clicking on a link in an email fails to start Firefox. If I start Firefox before Thunderbird then hyperlinks in emails open a page in the existing Firefox instance. Other users on this same machine are having the same problems. This has been happening for that last several days. CentOS release 6.6 (Final) Linux mushroom.patch 2.6.32-504.1.3.el6.i686 #1 SMP Tue Nov 11 16:30:09 UTC 2014 i686 i686 i386 GNU/Linux Thunderbird 31.2.0 Firefox 31.2.0 -- _ °v° /(_)\ ^ ^ Mark LaPierre Registered Linux user No #267004 https://linuxcounter.net/ ****

7 11

favorite cheap VPS services
by Tim Dunphy 16 Jan '15

16 Jan '15

Hey all, I'm trying to learn how to use some of the big data stores. Specifically I want to learn how to use CassandraDB and Hadoop. Originally I'd had the idea of trying to setup a cassandra ring on the Amazon AWS free tier. However it seems that neither will run on a t2.micro instance. So I was wondering.. what are some really cheap VPS services that you like to use for one off projects like this and why. I'm looking for dirt cheap as possible. I'd love to hear any opinions on this !! Thanks Tim -- GPG me!! gpg --keyserver pool.sks-keyservers.net --recv-keys F186197B

7 6

Zone file not written to slave DNS server
by Emmett Culley 16 Jan '15

16 Jan '15

I have mostly succeeded in getting master and slave DNS servers operational. Mostly, because the zone file is not written when a zone is updated on the master server when the notify and transfer process happens. The slave DNS server gets the changes to the modified zone, but the slave zone file remains as before. I've found a few tutorials and lots of discussions, many of which talk about the slave's zone file getting written upon transfer, but none mention what configuration option would cause the slave's files to get updated. The master is on a Cantos 6 server and the slave is on a Cantos 7 machine. Any ideas? Emmett

4 5

analog web log analyzer
by Les Mikesell 16 Jan '15

16 Jan '15

Analog (a) no longer seems to be maintained and (b) rebuilding the old source rpm on CentOS7 ends up with a conflict with a file named /usr/bin/analog that is owned by anaconda. So, taking a step back: is there a better tool for apache log analysis now? One feature of analog that I haven't been able to match with anything else is that you can rsync a tree of log files from a farm of servers into one place and invoke analog with a wild-card to expand all of their names on the command line and it will digest them all without the need to pre-sort in timestamp order. -- Les Mikesell lesmikesell(a)gmail.com

1 0

Failure to start HTTPD after the most `yum update` on CentOS 7
by Boris Derzhavets 16 Jan '15

16 Jan '15

[root@juno1 ~(keystone_admin)]# /usr/sbin/httpd -D FOREGROUND AH00548: NameVirtualHost has no effect and will be removed in the next release /etc/httpd/conf/ports.conf:7 AH00526: Syntax error on line 18 of /etc/httpd/conf.d/ssl.conf: Invalid command 'SSLPassPhraseDialog', perhaps misspelled or defined by a module not included in the server configuration Current version installed . Issue raised up as `yum update` on 01/16/2014 [root@juno1 ~(keystone_admin)]# rpm -qa | grep httpd httpd-manual-2.4.6-19.el7.centos.noarch httpd-2.4.6-19.el7.centos.x86_64 libmicrohttpd-0.9.33-2.el7.x86_64 httpd-tools-2.4.6-19.el7.centos.x86_64 RDO Juno installed on CentOS 7 is affected as well == Horizon service == openstack-dashboard: uncontactable == neutron services == Thanks. Boris.

1 0

bug#0008083: OS failed to update kernel after nss-softokn-freebl-3.14.3-19
by Suse Shi 16 Jan '15

16 Jan '15

https://rhn.redhat.com/errata/RHBA-2015-0048.html http://bugs.centos.org/view.php?id=8083 Hi All, I would like to check if you are also able to see this issue. After nss-softokn-freebl upgraded to 3.14.3-19, it doesnt provide file: /usr/lib64/libfreebl3.chk If we try to install/reinstall kernel, or try mkinitrd. it will fail. I can reproduce this problem on EL 6.6, I think it should be a serious problem... since later yum update kernel will report success(tiny warning), but os reboot will crash. -- Regards, -suse

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Discuss January 2015