Discuss April 2014

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172 participants
141 discussions

Starting the gotour server on CentOS 6
by Evan Rowley 23 Apr '14

23 Apr '14

Hey CentOS folks! I have an interesting issue with starting a server on a CentOS 6 KVM guest. The server (service) in particular is gotour, which is a web application created by Google and their Golang developers, intended to teach users the basics of using the Go programming langauge. When starting gotour, the program claims to be binding to port 12049, but the VM doesn't seem to be serving anything on that port. Upon checking the netstat output, I see a process bound to port 12049. It is definitley possible that the problem is with Go itself, but I'd like to rule out the possibility that something on an out-of-the-box CentOS 6 image might be preventing the server from working. Here is some of the output: [appengine@centos6-paas-dev gotour]$ gotour 2014/04/17 22:04:33 Serving content from /home/appengine/goprojects/firstproj/go/src/code.google.com/p/go-tour 2014/04/17 22:04:33 WARNING! WARNING! WARNING! I appear to be listening on an address that is not localhost. Anyone with access to this address and port will have access to this machine as the user running gotour. If you don't understand this message, hit Control-C to terminate this process. WARNING! WARNING! WARNING! 2014/04/17 22:04:34 Please open your web browser and visit http://10.10.10.205:12049 [root@centos6-paas-dev ~]# netstat -pnaevZ Proto Recv-Q Send-Q Local Address Foreign Address State User Inode PID/Program name Security Context ... tcp 0 0 10.10.10.205:12049 0.0.0.0:* LISTEN 505 224898 9331/gotour fined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 [appengine@centos6-paas-dev gotour]$ getenforce Permissive Any ideas? -- - EJR

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Re: [CentOS] Samba4 questions
by Alain Péan 22 Apr '14

22 Apr '14

Le 22/04/2014 21:54, Reindl Harald a écrit : >> I think you should wait for RHEL 7 (and then CentOS 7), which will be >> >released soon (June ?). Perhaps, it well include samba4 without anything >> >to build from source > not perhaps, for sure > > samba-4.1.0-3.el7.x86_64 > samba-client-4.1.0-3.el7.x86_64 > samba-common-4.1.0-3.el7.x86_64 > samba-libs-4.1.0-3.el7.x86_64 > I notice it is "samba-common-4....", so samba 4 will be the default in RHEL 7, not samba 3.6.x ? Alain

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Yum cannot download from local repository
by James B. Byrne 22 Apr '14

22 Apr '14

I have set up a local filesystem repo thus: # cat /etc/yum.repos.d/LocalFiles.repo # LocalFiles.repo # # This repo is used with rpms contained in a local filesystem repo # created with createrepo. You can use this repo and yum to install # items directly off the local disk. # # To use this repo with the other repos: # yum --enablerepo=localfiles yum --nogpgcheck <yum command> # # or to ONLY this repo, do this: # # yum --disablerepo=\* --enablerepo=localfiles <yum command> [localfiles] name=CentOS-$releasever - Local Files baseurl=file:///root/RPMS/repos/ enabled=0 gpgcheck=0 In /root/RPMS/repos/ I have this: ll /root/RPMS/repos/ total 8 drwxr-xr-x. 2 root root 4096 Apr 21 16:17 Packages drwxr-xr-x. 2 root root 4096 Apr 21 15:57 repodata And in /root/RPMS/repos/Packages I have this: ll /root/RPMS/repos/Packages/http* -rw-rw-r--. 1 root root 1151252 Apr 21 16:15 /root/RPMS/repos/Packages/httpd-2.4.9-1.el6.x86_64.rpm -rw-rw-r--. 1 root root 3415444 Apr 21 16:15 /root/RPMS/repos/Packages/httpd-debuginfo-2.4.9-1.el6.x86_64.rpm -rw-rw-r--. 1 root root 186000 Apr 21 16:15 /root/RPMS/repos/Packages/httpd-devel-2.4.9-1.el6.x86_64.rpm -rw-rw-r--. 1 root root 3300912 Apr 21 16:15 /root/RPMS/repos/Packages/httpd-manual-2.4.9-1.el6.x86_64.rpm -rw-rw-r--. 1 root root 69784 Apr 21 16:15 /root/RPMS/repos/Packages/httpd-tools-2.4.9-1.el6.x86_64.rpm Yet when I try to install or upgrade using yum I get a download error: # yum --enablerepo=localfiles --nogpgcheck update httpd Loaded plugins: downloadonly, fastestmirror, priorities, refresh-packagekit Loading mirror speeds from cached hostfile * Webmin: download.webmin.com * base: less.cogeco.net * epel: mirror.steadfast.net * extras: centos.mirror.ca.planethoster.net * rpmforge: repoforge.mirror.constant.com * updates: centos.mirror.rafal.ca Setting up Update Process Resolving Dependencies --> Running transaction check ---> Package httpd.x86_64 0:2.2.15-30.el6.centos will be updated --> Processing Dependency: httpd-mmn = 20051115 for package: 1:mod_ssl-2.2.15-30.el6.centos.x86_64 --> Processing Dependency: httpd = 2.2.15-30.el6.centos for package: 1:mod_ssl-2.2.15-30.el6.centos.x86_64 ---> Package httpd.x86_64 0:2.4.9-1.el6 will be an update --> Running transaction check ---> Package mod_ssl.x86_64 1:2.2.15-30.el6.centos will be updated ---> Package mod_ssl.x86_64 1:2.4.9-1.el6 will be an update --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Updating: httpd x86_64 2.4.9-1.el6 localfiles 1.1 M Updating for dependencies: mod_ssl x86_64 1:2.4.9-1.el6 localfiles 79 k Transaction Summary ================================================================================ Upgrade 2 Package(s) Total download size: 1.2 M Is this ok [y/N]: y Downloading Packages: Error Downloading Packages: httpd-2.4.9-1.el6.x86_64: failure: Packages/httpd-2.4.9-1.el6.x86_64.rpm from localfiles: [Errno 256] No more mirrors to try. 1:mod_ssl-2.4.9-1.el6.x86_64: failure: Packages/mod_ssl-2.4.9-1.el6.x86_64.rpm from localfiles: [Errno 256] No more mirrors to try. Any ideas on what I am doing wrong? -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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Module building and signing
by Chris Pemberton 22 Apr '14

22 Apr '14

In order to get "Beats Audio" (2.1 channel sound) working on my HP k025dx laptop running CentOS 6.5, I need to re-assign some of the pins on the Intel HDA soundcard - model 92HD91BXX. This is trivial in newer distros for two reasons: 1. the 'hda-jack-retask' application compiles and runs on newer distros 2. the snd-hda-intel modules on newer distros are compiled with CONFIG_SND_HDA_RECONFIG=y Even if I could get 'hda-jack-retask' to compile, I'd still need the module built with CONFIG_SND_HDA_RECONFIG=y. So I followed the 2 wiki articles to install full kernel sources and I re-compiled the module. When loading the new module, I get the following error: FATAL: Error inserting snd_hda_intel (/lib/modules/2.6.32-431.11.2.el6.x86_64/extra/snd-hda-intel.ko): Invalid module format I run 'file' on the new and original modules and they seem identical: /lib/modules/2.6.32-431.11.2.el6.x86_64/extra/snd-hda-intel.ko: ELF 64-bit LSB relocatable, x86-64, version 1 (SYSV), not stripped /lib/modules/2.6.32-431.11.2.el6.x86_64/kernel/sound/pci/hda/snd-hda-intel.ko: ELF 64-bit LSB relocatable, x86-64, version 1 (SYSV), not stripped My next attempt was to compile an entire kernel, and then copy the new module over to the original kernel. Inserting the module give the following: Module signed with unknown public key ksign: module signed with unknown public key - signature keyid: 3000b37e8a34083d ver=4 I googled for a fix and tried two methods of removing the module signing (neither worked): objcopy -R .note.module_sig snd-hda-intel.ko objcopy -R .module_sig snd-hda-intel.ko (I did get finally get the audio pins re-mapped, but I had to resort to using my newly-compiled kernel as well). Should kmod fix my issues? Thanks, Chris

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Does anyone use tcp wrappers (hosts.allow/hosts.deny) anymore?
by Matthew Miller 22 Apr '14

22 Apr '14

Does anyone use tcp wrappers (hosts.allow/hosts.deny) anymore? And, would you care strongly if it went away (or would you just migrate to something else)? I bring this up because we are discussing dropping it from Fedora. This would be far enough in the future that it wouldn't impact RHEL 7, and therefore won't affect anyone here for Quite Some Time*, but here in the new world order of CentOS, I thought it might be useful to check with some actual downstream users. What do you think? Do you rely on hosts.allow/hosts.deny a primary security mechanism? As defense-in-depth? Do you have policies which mandate it? Your feedback appreciated. Thanks! * and the standard caveats that Fedora doesn't necessarily determine the path for RHEL apply, of course. -- Matthew Miller mattdm(a)mattdm.org <http://mattdm.org/>

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nfs question
by Barbara Krasovec 22 Apr '14

22 Apr '14

Hello! We have central ldap for users, idmapd.conf configured on every machine and users' home folders on nfs, mounted by automount on several machines. After the last OS upgrade we notice that permissions on some files (not for all users) are corrupted: For example: -rw-r--r-- 1 4294967294 4294967294 45 Nov 11 21:20 hostlist drwx------ 2 4294967294 4294967294 4096 Jun 27 2012 .ssh -rw-r--r-- 1 4294967294 4294967294 0 Aug 28 2013 test -rw-r--r-- 1 4294967294 4294967294 53 Jan 6 12:44 test.sh instead of: -rw-r--r-- 1 ops001 ops 45 Nov 11 21:20 hostlist drwx------ 2 ops001 ops 4096 Jun 27 2012 .ssh -rw-r--r-- 1 ops001 ops 0 Aug 28 2013 test -rw-r--r-- 1 ops001 ops 53 Jan 6 12:44 test.sh Kernel used: 2.6.32-431.11.2.el6.x86_64 Nfs version: nfs-utils-1.2.3-39.el6.x86_64 User/group mapping works fine. Same behaviour appears when I mount the home folder manually. Any ideas? Thanks, Barbara

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CentOS 5.10: Upgrading from IUS's php52 to CentOS's php53 questions
by Robert Heller 22 Apr '14

22 Apr '14

I would like to update one of the websites on my server from Joomla 1.5 to Joomla 3.2, but it wants PHP 5.3. I am currently using IUS's php52 5.2.17, which is fine for the Joomla 1.5 and the various WordPress sites (up to 3.9) currently served on this server. I plan to test the update procedure on my home (test) system (a pretty much identically setup system) before possible breaking my public/production server, but wanted to get the 'wisdom' of the centos user-list: are there any gotchas I need to watch for. I presently have installed: php52-5.2.17-6.ius.el5 php52-devel-5.2.17-6.ius.el5 php52-odbc-5.2.17-6.ius.el5 php52-gd-5.2.17-6.ius.el5 php52-common-5.2.17-6.ius.el5 php52-mysql-5.2.17-6.ius.el5 php52-ncurses-5.2.17-6.ius.el5 php52-ldap-5.2.17-6.ius.el5 php52-dba-5.2.17-6.ius.el5 php52-mbstring-5.2.17-6.ius.el5 php52-snmp-5.2.17-6.ius.el5 php52-xmlrpc-5.2.17-6.ius.el5 php52-pdo-5.2.17-6.ius.el5 php52-cli-5.2.17-6.ius.el5 php52-pear-1.9.4-1.ius.el5 php52-xml-5.2.17-6.ius.el5 php52-imap-5.2.17-6.ius.el5 -- Robert Heller -- 978-544-6933 / heller(a)deepsoft.com Deepwoods Software -- http://www.deepsoft.com/ () ascii ribbon campaign -- against html e-mail /\ www.asciiribbon.org -- against proprietary attachments

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Normalizing WAV files
by Mark LaPierre 22 Apr '14

22 Apr '14

Hey all, I've been googling trying to find a tool that I can use to normalize a directory full of WAV files. I found a reference to normalize in the atrpms repo but it wants to clobber several of the base rpms. Does anyone know of a tool in CentOS 6 that can normalize a directory full of WAV files that I can install without hosing up my system? -- _ °v° /(_)\ ^ ^ Mark LaPierre Registered Linux user No #267004 https://linuxcounter.net/ ****

4 3

backuppc problem
by Derrik Walker v2.0 21 Apr '14

21 Apr '14

I've installed backuppc from the EPEL repository. It does backups just fine, BUT, when the backups are done, the status on the web page says there are no backups for any of my systems I'm backing up. To be sure, they are taking up disk space, but it's just not reporting it correctly to the admin web interface. I'm thinking I'm missing some package I need, but am not sure exactly what. Any ideas? Thanks. - Derrik

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Re: [CentOS] Motion Detecting Camera
by tdukes＠palmettoshopper.com 21 Apr '14

21 Apr '14

-------- Original Message -------- Subject: [CentOS] Motion Detecting Camera From: Leslie S Satenstein <lsatenstein(a)yahoo.com> Date: Sat, February 01, 2014 7:27 am To: "centos(a)centos.org" <centos(a)centos.org> mark wrote With the continuing annoyance from motion, my manager's asked me to go looking again for a video surveillance appliance: basically, a motion-detecting DVR and cameras. The big thing, of course, is a) price (this is a US federal gov't agency, and being civilian, money is *tight*, don't give me the libertarian/GOP line about how freely we spend, thankyouverymuch), b) it has to be on the network, and c) we need to be able to d/l to a server, and rm after we do that... and we want to script or cron job that. I was in Costco (USA warehouse store) and saw a Philips LED display, Camera, Recorder, that was motorized. The camera followed the movement across the front of it, and could snapshot to a memory chip. It was under $80.00 for the ensemble. The floor model worked well. If you do not require realtime recording to a hard disk, then this item may be a reasonable cost solution. Regards Leslie Mr. Leslie Satenstein SENT FROM MY OPEN SOURCE LINUX SYSTEM. _______________________________________________ CentOS mailing list CentOS(a)centos.org http://lists.centos.org/mailman/listinfo/centos Checkout bluecherry.net

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Discuss April 2014