Discuss March 2015

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172 participants
170 discussions

selinux allow FTP
by Tim Dunphy 05 Mar '15

05 Mar '15

Hey folks, How would I allow a user to connect to an FTP server, upload and download files and delete files as well, if that server is in enforcing mode for SELinux? I'm using proftpd 1.3.5 on CentOS 7. Thank you! Tim -- GPG me!! gpg --keyserver pool.sks-keyservers.net --recv-keys F186197B

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Extdata / Extprograms Plugins for Dovecot Pigeonhole?
by E.B. 04 Mar '15

04 Mar '15

Hello, I want to install Dovecot Pigeonhole and use the Extdata and Extprograms plugins. According to the dovecot documentation[1,2], those plugins need to be compiled. So two questions: * Are either of these plugins built into the Pigeonhole that is available in the CentOS 7 extras repo? * Is it possible to use these plugins with Pigeonhole installed from yum? Does the compilation requirement mean that I have to remove not only Pigeonhole, but also Dovecot itself from my system and build everything by hand? :-( PS - Is there another version of Pigeonhole in a repo elsewhere (like EPEL or DAG?) that might have what I want? [1] http://wiki2.dovecot.org/Pigeonhole/Sieve/Plugins/Extdata [2]http://wiki2.dovecot.org/Pigeonhole/Sieve/Plugins/Extprograms

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Dovecot Pigeonhole version in extras repo?
by E.B. 04 Mar '15

04 Mar '15

Hi, I want to install Dovecot Pigeonhole from the yum Centos extras repo, but "yum info" reports the version number not of the plugin but of dovecot itself. Can anyone say what the Pigeonhole version is currently for the extras repo for CentOS 7?

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Memory issue in kernel sctp implementation
by Danny Smit 04 Mar '15

04 Mar '15

Dear all, I'm running into a possible memory issue with the SCTP implementation in CentOS 6, using lksctp-tools. So far I've not seen the problem with other distributions yet. The problem is that whenever a SCTP client connection is initiated to a second host and port at which no SCTP server application is listening The scenario is simple: - call socket() to create a socket. - call sctp_connectx() to establish a connection. The last call is repeated periodically to retry to establish a connection. When looking on the wire using wireshark it shows that an SCTP INIT packet is sent to the second host, which replies with an SCTP ABORT. This is exactly according to the SCTP specification. However it appears ABORT isn't propagated into to application layer that calls sctp_connectx(). Furthermore, because reconnect attempts are made, a steady memory increasement occurs. Looking at /proc/meminfo, the increasement occurs in SUnreclaim, the kernel slab cache. Can you advice if this can be an issue with the SCTP implementation in the kernel? Maybe an issue solved upstream, but not (yet) backported into centos 6? It applies to the following package versions (also to older kernels): - kernel-2.6.32-504.8.1.el6.x86_64 - lksctp-tools-1.0.10-7.el6.x86_64 Regards, Danny Smit

1 0

dhclient.conf
by Pol Hallen 04 Mar '15

04 Mar '15

Hi all :-) on centos 6 I need keep the hostname from a dhcp server: cat /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 HWADDR=00:50:56:27:0E:C8 TYPE=Ethernet UUID=20924b21-e92a-4944-a054-06d1967155c1 ONBOOT=yes NM_CONTROLLED=yes BOOTPROTO=dhcp PEERDNS=yes with this config, centos keep only ip from dhcp server (not gw, not dns) where is dhclient.conf? I need to create it? If yes, where're the default options? thanks for help! Pol

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Ignorant question on SSL certs
by Timothy Murphy 04 Mar '15

04 Mar '15

I'm getting endless complaints about my dovecot cert, /etc/pki/dovecot/certs/dovecot.pem which I created years ago following the dovecot instructions. Do I really have to use a separate cert and key for dovecot? Can I not use the "standard" cert in /etc/pki/tls/certs (and key) from CACert.org ? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin

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Apologies for the late replies
by m.roth＠5-cent.us 03 Mar '15

03 Mar '15

*sigh* There seems to have been a problem with my hosting provider's mailqueues this morning. As in, I called, and told them, and no one had reported it, and I even got an actual trouble ticket.... <g> So, I'm assuming they just figured it out. I sent the one on the cert, and the other, before 11:00 this morning.... Sorry to post-add to the conversation. mark

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disk space trouble on ec2 instance
by Tim Dunphy 03 Mar '15

03 Mar '15

Hey all, Ok, so I've been having some trouble for a while with an EC2 instance running CentOS 5.11 with a disk volume reporting 100% usage. Root is on an EBS volume. So I've tried the whole 'du -sk | sort -nr | head -10' routine all around this volume getting rid of files. At first I was getting rid of about 50MB of files. Yet the volume remains at 100% capacity. Thinking that maybe the OS was just not letting go of the inodes for the files on the disk, I attempted rebooting the instance. After logging in again I did a df -h / on the root volume. And look! Still at 100% capcity used. Grrr.... Ok so I then did a du -h on the /var/www directory, which was mounted on the root volume. And saw that it was gobbling up 190MB of disk space. So then I reasoned that I could create an EBS volume, rsync the data there, blow away the contents of /var/www/* and then mount the EBS volume on the /var/www directory. So I went through that exercise and lo and behold. Still at 100% capacity. Rebooted the instance again. Logged in and.. still at 100% capacity. Here's how the volumes are looking now. [root@ops:~] #df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 9.9G 9.3G 49M 100% / none 312M 0 312M 0% /dev/shm /dev/sdi 148G 116G 25G 83% /backup/tapes /dev/sdh 9.9G 385M 9.0G 5% /backup/tapes/bacula-restores /dev/sdf 9.9G 2.1G 7.4G 22% /var/lib/mysql fuse 256T 0 256T 0% /backup/mysql fuse 256T 0 256T 0% /backup/svn /dev/sdg 197G 377M 187G 1% /var/www There are some really important functions I need this volume to perform that it simply can't because the root volume is at 100% capacity. Like the fact that neither mysql nor my backup program - bacula will even think of starting up and functioning! I'm at a loss to explain how I can delete 190MB worth of data, reboot the instance and still be at 100% usage. I'm at my wits end over this. Can someone please offer some advice on how to solve this problem? Thanks Tim -- GPG me!! gpg --keyserver pool.sks-keyservers.net --recv-keys F186197B

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Strange crash after NVidia driver installation from ELRepo
by info＠microlinux.fr 03 Mar '15

03 Mar '15

Hi, I just had the weirdest of system crashed. Here goes. I wanted to install a desktop step by step, as I usually do. First the base system, then the X Window System, then the WindowMaker window manager. Everything went OK, then I installed kmod-nvidia from ELRepo. Yum informed me that the driver conflicted with x11-glamor (something like that), so I removed the corresponding package. While doing all this, the system still defaulted to boot in console mode (meaning multi-user.target and not graphical.target). To test X, I just launched WindowMaker using startx. Anyway, I rebooted, and then... nothing. System refused even to startup, and systemd suggested to me that I open journalctl (which taught me nothing). Right now I've started a Slax LiveCD to backup all my data and reinstall the whole thing from scratch. I don't have the slightest clue as to what could possibly have happened here. The only thing I wonder: could it be that installing the kmod-nvidia driver while booting to a default console (and not graphical) could lead to this weirdness? A previous installation on that machine went OK, but the difference was that the first time, I started with a full GNOME installation right away. Any suggestions? Niki

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Re: [CentOS] Custom user profile for GNOME 3?
by James B. Byrne 03 Mar '15

03 Mar '15

On Tue, March 3, 2015 06:27, Niki Kovacs wrote: > Hi, > > I wonder where - and eventually how - GNOME 3 stores its user > preferences. I'd like to create a custom user profile, with slightly > different settings than the default ones: > You might take a look at the gsettings utility. -- *** 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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Discuss March 2015