Check Users Login Activity

GEEKS !! Do you know that you can get a lot of information about users connect time to your Linux server using “ac” command. Can be very useful in checking the authorized and… Continue reading →

Checksum openssl

GEEKS !! I know, that you all know, how to use the checksum or hashes to check the integrity of your important files. This is something you had already learned in your RHCE… Continue reading →

Another use of cat command

GEEKS !! Remember the old cat command that you have learned during your RHCE training to create and view the contents of files. Here comes a very useful way of using the old… Continue reading →

Encryption using Openssl

GEEKS!! If you remember your RHCE Training or RHCSS RH333 training you must have memories of using openssl for encrypting files. Here is a small tip where you can use the same openssl… Continue reading →

alias linux

Hope you all remember the alias command that you have used during your RHCE Training. What if you want to find out whether a particular command is aliased. Simple just use – type… Continue reading →

hdparm linux tool

GEEKS !! You have installed / partitioned and used your HDD while your Red Hat Linux Training. Check the speed of your HDD by using hdparm. You can use -t switch and -T… Continue reading →

More Logs, Less Space

GEEKS !! If you still remember the basics of /etc/logrotate.conf file which you have learned in your Red Hat Linux Training or RHCE Training, then you must be knowing that by default the… Continue reading →

NTP Status in Linux

GEEKS !! I hope you still remember how to configure your Linux Server as a NTP client using GUI which was a objective under your RHCE Training. Here comes the fastest way to… Continue reading →

Virtual Consoles during RHEL 6 Installation Time

GEEKS !! While installation of RHEL 6 you can access different virtual consoles for diagnostic purpose. Hope you remember your RHCE Training. Several kinds of diagnostic messages are available to you, during installation… Continue reading →

rtcwake linux command

GEEKS !! This tip is beyond any formal Linux Training. Want to hibernate your Linux machine automatically or want to start it automatically at a specified time to start some process? Please welcome… Continue reading →