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Wednesday, May 14. 2008Debian - Dell OMSA SNMP
If you would like to use SNMP to monitor your dell server with OMSA (server administrator) installed, you have to configure your local SNMPd.
First you have to enable SNMP on OMSA: /etc/init.d/dataeng enablesnmpThan restart your Data Engine System from OMSA: /etc/init.d/dataeng restartYou can now install the snmp daemon from debian: apt-get install snmpdSNMPd should listen to all interfaces. You can configure this at /etc/default/snmpd Please note, that you have to remove the entry -I -smux, because OMSA uses snmp smux for communicating with the SNMP daemon. The following snmpd.conf is tested to work with OMSA: com2sec local localhost publicNow restart the snmpd and install also the dell mibs. You can find the mibs in /opt/dell/. After the restart you can walk throw your SNMP tables: snmpwalk -v2c -c public localhost 1.3.6.1.4.1.674.10893If you want to monitor the health of your server I can suggest you the following nagios plugin: check_omsa_snmp.pl - this plugin checks temperature,voltage, Power Supply and Cooling Devices Monday, October 8. 2007vlans + 3DM2
This morning, I had to install my 3dm2 package on an server with vlans on the local ethernet device.
I installed the packages as always, but I was not able to start 3dm2. The software failed with
After some debuging, I have changed RemoteAccess parameter to 0. After this modification in the configuration file, I was able to start 3dm2 on the machine. So I think 3dm2 is not able to handle ethernet devices with vlans enabled... Sunday, January 7. 20073Ware CLI and 3dm2 debian packages updated
I have updated my 3Ware CLI (Command Line Interface) and 3DM2 (Disk Management Utility) debian packages.
You can find it on my website like the last version. Please note, I have only updated the i386 packages, the amd64 will follow in some days. Friday, December 29. 2006Cacti - Secuity fix
Cacti the graphing tool has an security bug.
Heise.de has got an post about it. I think moving the cmd.php is not a very good solution. I fixed it with the following code in the Apache config: <Files cmd.php> It blocks all webrequests for the cmd.php (Don't forget to reload your Apache) Sunday, September 10. 2006Webbased email administration interface - Update
Updated features list:
1.) normal eMailaccount
Now it would be nice if some volunteer create a nice site layout for the webinterface. Monday, August 14. 2006Webbased email administration interface
My project is neaerly complete! - Web based managment for eMailServers.
My eMailServer framework based on Courier/Postfix/Maildrop/MySQL has got four usergroups: 1.) normal eMailaccount
2.) admin for one or more domains
3.) superadmin
4.) superadmin manager
All this actions can be done with the webinterface! You can find some screenshots here. Sorry all screenshots in german, but it based on Smarty so you can make your own template. The Webinterface depends on php4, php4-mysql, php4-cli, mysql-server,smarty, php4-pear and some extra Pear Modules. Tuesday, June 6. 20063Ware - CLI - Command Line Interface for debian
3Ware Software the second round!
I have created debian packages for the CLI (Command Line Interface) for 3Ware Controllers. You can find it, like the 3dm2 on Debian Unofficial and here. Saturday, June 3. 20063Ware - 3DM 2 - Disk Management Utility for debian
I have created debian packages for the 3DM 2 (Disk Management Utility) for 3Ware Controllers.
You can find it on Debian Unofficial and here. Friday, May 19. 2006Why you should read the kernel changelog
Why you should read the kernel changelog? - You have to read it, when you use an 2.6.16 vanilla kernel on a native sarge.
When you don't have any problems with LVM (lvm2) and the kernel. In the Kernel ChangeLog there are nice informations like this: If you're using lvm2, for this patch to work correctly you should update to lvm2 version 2.02.01 or later and device-mapper version 1.02.02 or later. If I had read this, I would have had no problems with LVM and kernel 2.6.16! Note for me: Fly over kernel changelog for every new kernel! Tuesday, May 16. 2006Win2k3 unattended installation: non-speaking error
If you work on unattended installtion for Windows and you get the following error during the GUI Installation Setup, don't despair.
![]() An error has been encountered that prevents Setup from continuing. When you get this error, there are some missing entries on your winnt.sif file in the I386 Folder. You have to add: MsDosInitiated = "0" AutoPartition=0 UnattendedInstall = "Yes" That flags are essential for the [Data] Selection in the winnt.sif file! MsDosInitiated=0 Means that you are not installing from floppy drives! AutoPartition=0 You musst create the partitions on yourself! UnattendedInstall = "Yes" Starts the Unattended Installation in the GUI Mode. Tuesday, April 11. 2006Rsync Server under Windows
Rsync Server under Windows is possible with cygwin and cwrsync!
You can get cwRsync with cygwin dlls here: http://itefix.no/cwrsync/ Install it, create a rsync.conf file, but two things are important for running rsync on windows:
My rsync.conf looks like this:
The password file has got that format: username:password For installing rsync as a Server you need the programs: - instsrv.exe - srvany.exe Now execute this command: instsrv.exe "Rsync c:\path\to\srvany.exe Do not start the service now! Open regedit and insert the following lins to that path: HKEY_LOCAL_MACHINE\SYSTEMS\CurrentControlSet\Services\Rsync\Parameters
Now you can start rsync as a normal service. Monday, February 20. 2006Script: check for new security updates with cron and mail
This script checks for new updates and mails the output to the sysadmin!
Tuesday, February 14. 2006boot kernel over network with initrd ramdisk
if you want to boot kernel and initrd over the network, please recompile the kernel and change the
CONFIG_BLK_DEV_RAM_SIZE= to your new size of the initrd. Per default it is 4MB that is not very much, if you use initrd for / Thursday, February 9. 2006Postfix with Amavis-new for virus scanning
Here is a short HowTo for configure Postfix to use Amavis with ClamAV for virus scanning!
First you should install ClamAV from backports.org, when you using the ClamAV from stable/sarge you have an old searching engine that maybe have some problems to recognize new viruses with the new files from ClamAV-freshclam. First add this line to your /etc/apt/sources.list: deb http://www.backports.org/debian sarge-backports main Now that is very important to create a /etc/apt/preferences file:
With this entry you deactivate all packages from backports.org this is important because we will only install ClamAV from backports. Save the file and run an apt-get update to receive the packagefiles from backports.org. Now install clamav with: apt-get install -t sarge-backports clamav clamav-freshclam The -t sarge-backports is necessary, because apt will now install the package from backports.org! Now install amavis-new: apt-get install amavis-new Edit your /etc/postfix/main.cf and add this for amavis:
Edit your /etc/postfix/master.cf and add this for amavis:
Now you have to add clamav user to the amavis system group and add the clamav user to the amavis system group in your /etc/group! Because clamav user must read files in the amavis directory and the amvis user must read files in the clamav directory. After the modification /etc/group should look like:
After this modification you have to restart all services! (postfix, clamav-daemon, clamav-freshclam, amvis) Than you have to edit the /etc/amavis/amavisd.conf: It's very big so I only list the changes:
->>change to your hostname
->> no mail to virussender. because often the from emailaddres is faked!
->> the recipient gets an email that he has received an virus email
->> postmaster gets no notification Safe the configuration file and restart your amavid! Now try to send an email and than try to send a virus from If the repicient gets an email about “VIRUS ( EICAR.Test) IN MAIL TO YOU” all works fine. If not, check the /var/log/mail.log and try to resolv the error! Wednesday, February 8. 2006lilo and automatically loading one kernel
If you can't switch the kernel and you can't type anything to the lilo console.
You can try the CTRL or CTRL+c key.... It was very crazy to have that problem. :-/
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