Rebooting a Centos server ignoring CIFS or other broken / hung mount

We had a problem on a server df would hang and we knew that a cifs / samba share died and recovered. Trying unmount / with any parameters -l -f failed. Experience and google told us we need to reboot. This is a remote server and we know the shutdown hangs on going down so…

Listing SIDs in Windows

In windows (again I know …. ) sometimes you get reference to removed users ( and sometimes not so removed) ย in mmc and secpol looking like this : S-1-5-21-123456789-3881959548-123456789-500 To check the SIDs of users for some obscure bug like I had today use: wmic useraccount get name,sid That’s it .. ( ofcourse you can…

Check if Windows Drive exists

In windows (yes I know) you can check if a drive exists by using IF EXIST E:\NUL echo yep it does .. that’s it . nJoy ๐Ÿ˜‰  

Querying network card information and status

Great tool for checking ethernet NIC information in linux: ethtool In ubuntu you might need to install it like so : sudo apt-get install ethtool The tool is easy to use:   Use ifconfig -aย  to list nics then   root@wo1:~# ethtool p4p1 Settings for p4p1: Supported ports: [ TP ] ย  ย  ย  ย …

Vmware Client Automating connections

This is a hint from Andrew Thanks..     C:\Program Files\VMware\Infrastructure\Virtual Infrastructure Client\Launcher\VpxClient.exe -i yes -s -u root -p password   Works ! In a batch: start “VMLauncher” /D”C:\Program Files\VMware\Infrastructure\Virtual Infrastructure Client\Launcher\” VpxClient.exe -i yes -sย -u root -p password”   Thanks nJoy ๐Ÿ˜‰    

Convert DEB to RPM or RPM to DEB Package

You can convert DEB file to RPM package and RPM to DEB package using alien command, if you have a *.rpm file that you want to install on a Debian or Ubuntu. Convert RPM to DEB Install alien command on Ubuntu as mentioned here: # sudo apt-get install alien Now, use alien command to convert…

Sysadmin as a Job

So .. Today I got a question asked to me : ” why did you leave programming to become a sysadmin? ” This came as a surprise question from a new friend I have. And it got me thinking… Why sysadmin ?

Restarting shpinx for kaltura

Common problem with kaltura.. Common solution … pkill searchd /opt/kaltura/bin/sphinx/searchd -c /opt/kaltura/app/configurations/sphinx/kaltura.conf nJoy ๐Ÿ˜‰