similar to: bonding and ifcfg config

Hi, I install a new 4 Port GBit Server with centos 6.3 and I'd like to use nic bonding. Searching for a good how to pinted to this page: http://www.how2centos.com/centos-6-channel-bonding/ My question: Is this the current, good way to bond the 4 ports? The other question: What should I set on the cisco switch for the Port-channel options? As far as I understand for performance and

Hi, did anybody did an update from 1.x -> 2.x yet? I'D like to use the rpm from http://packages.atrpms.net/dist/el5/dovecot/ May be someone has some suggestions? Regards . G?tz -- G?tz Reinicke IT-Koordinator Tel. +49 7141 969 420 Fax +49 7141 969 55 420 E-Mail goetz.reinicke at filmakademie.de Filmakademie Baden-W?rttemberg GmbH Akademiehof 10 71638 Ludwigsburg www.filmakademie.de

Hi, one more LVM thing: on one server some LVM stores are physically removed but still there are some informatione somwher spread adcross teh server. e.g. if I do a vgdisplay or pvcreat I get an error regarding that old storage: /dev/raid_10/lvol0: read failed after 0 of 4096 at 14000515383296: Eingabe-/Ausgabefehler How can I remove all information? Thanks for any hint. Regards . G?tz

Hi, I do have an iscsi storage with two raidsets. I'm logged in to the target and get two devices: /dev/sdb and /dev/sdc. After formatting the devices with ext4 I realised, that I had used a wrong label, so I tried to relabel the devices. But now I'm confused: doing a e2label /dev/sdb or /dev/sdc returns always the same label name for both devices. so I did "e2label /dev/sdb

Thank you for clarifying this, Johan. Very much appreciated! On Wed, 29 Apr 2015 22:28:00 +0200 Johan Kooijman wrote: > Carl, > > By default my.cnf has to obey the OS limits, so in this case the > order is: systemd > /etc/security/limits* > /etc/my*. > > On Wed, Apr 29, 2015 at 3:22 PM, Carl E. Hartung > <carlh04426 at gmail.com> wrote: > > > Hi

Hi, we still run dovecot 1.2.17 and upgrading is not planed for some time. But I'm asked to install a sieve system to be used with SOGo soon. What do I have to install / configure? Is installing/configuring the dovecot-sieve-0.1.19 and dovecot-managesieve-0.11.13 enough? We still use mostly the default settings for imaps/pop3s. And of course configure SOGo. Thanks for any feedback.

Hi, some time ago I removed some physical disks from a server and now I'm still getting dmesg messages like: sd 0:2:2:0: SCSI error: return code = 0x00040001 end_request: I/O error, dev sdc, sector 0 And all lvm tools still grumbel about that disks too: /dev/sdb: read failed after 0 of 4096 at 0: Eingabe-/Ausgabefehler /dev/sdb: read failed after 0 of 4096 at 1746969493504:

Hi, it's time to start our redundant dhcp server setup and I found some suggestions and tutorials. But all setups I found use either static or nonstatic ip adress management. For the static setup I'd setup two servers and copy the configfile from the 'master' to the secondary server and do a dhcpd restart. For the nonstatic I have to setup pool and failover peer configurations

Hi, I do a tgz-backup some maildir-folders with n*1000 off files and a lot of GB in storage. The backuped maildirs are removed after the tar. My assumption was, that the free diskspace should be bigger after that, but from what I get with df, it looks like I'm loosing space. Currently the tgz is saved on the same disk/mountpoint. Any hint, why removing the maildirs dont free diskspace as

Hi, may be there are some best practice suggestions for the "best mode" for channel bonding interface? Or in other words, when should/would I use which mode? E.g. I do have some fileservers connected to the users lan and to some ISCSI Storages. Or some Webservers only connected to the LAN. The switches are all new cisco models. I've read sone docs (1), (2) and (3) so the theory

Hi, I do have a domain and a couple of different ip networks. E.g. domainname.de and 172.17.0.0/16 and 192.168.200.0/24 In our old dns files I only have a reverse master zone for the 172.17.-lans, but also 192.168.200.x addresses in the forward zone config. My question: dose maybe someone forgot the 192.168.200.x reverse zone files and config and can I just create a file like that for the

Hi, I do have one fileserver, which is compared to other systems slow when transferring file through the lan. The test I did get a transfer speed of about 70 - 80 MB/s. I copy files by rsync or scp from a SSD disk to the servers ISCSI Storage and I tested to copy to a serverside RAM disk. I copy one big file of about 2/10 GB; 2 is to the RAM disk. The point is, the mentioned one server just

Hi, we have to setup a server which gets a copy of all messages send and received by our mailserver as a 1:1 copy. Mails send to multiple recipients should be calculated and saved per user. (great if you usually have lost of mails send to groups of people.) So no dedublication should be used here. (e.g. save the message and refer the different recipients to it.) How can I calculate the current

Hi, I'm testing a storage system and different network settings and I'm faced with a strange phenomen. Doing a mkfs.ext4 on the centos server lasts 11 minutes. The same mkfs.ext4 command on the debian installation is done in 20 seconds. It is formatting a 14 TB 10Gbit ISCSI Target. It is the same server. Centos and debian are installed on different internal harddisks. Any

Hi, recently I debugged some load and performance and 'log out' problems and found an error in the dovecot logs: Error: pipe() failed: Too many open files Googling around and reading some posts led to the conclusion, that my problem is a bug, which will not be removed. So I'm thinking of upgrading to the latest prebuild rpm from here: http://packages.atrpms.net/dist/el5/dovecot/

HI, recently I noticed, that our dovecot server (RH EL 5.7 dovecot-1.0.7-7.el5_7.1) 'fires' up a lot of imap processes only for one user. I counted 214 :-) most of tham in the 'S' state and are started nearly at the same time within 5 minutes. Usually users do have about 4 to 10 .... Dose anyone has an idea, what could be the cause? Thanks for any suggestion and best regards .

Hi, I'm sorry to bug you with an not directly dovecot related question, but this is for me right now the place with the best mailsystem admins I know. I'm asked if there is a way to save a copy of all mail we send trough our sendmail server (Red Hat EL 5.x) in and out as an .eml file for further processing by a DMS system. The files should be saved on some network share. Any suggestion

Hi, we have started to switch our users mails from mbox to maildir and see for some users panics. May be someone has a hint on whats causing that and how to fix it? It's dovecot 2.2.10 on Redhat. dsync(s109487): Error: Corrupted index cache file /srv/vmail/s109487/mail/.imap/GS Drehbuch 1/dovecot.index.cache: Broken physical size for mail UID 42 dsync(s109487): Error: mail parser:

Hi, we still run a Red Hat EL 6.x samba-3.6.9-151 PDC with domain login, roaming profiles, Windws 7 clients and LDAP back end. In the last couple of weeks we notice some unregular crashes with abrt reports. But as an university our RH subscription dose not include the full support. I cant see any changes to the installation or configuration which might have an influence to the chrashes. So any

Hi, I do have two DNS servers running bind 9.7.3. One master, one slave. If I add/update a record on the master, it takes up to more or less 20 hours until that change is transferred to the slave. That is a long time for me :-) May be I got some settings wrong which would sync much faster ... ? What could be wrong? What might I check? Thanks for any suggestion and hint! Regards . G?tz --