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Server Build Process
Server Build Process If we are building new servers for customers, we need to create a checklist or build process. This way we won’t miss any steps. Once the server…
Red Hat training and certifications
Red Hat training and certifications There are many Linux distributions in the marker, but there are only few companies provide enterprise level release support. Red Hat Certification is one of…
RPM commands and examples
RPM(Redhat Package Management) rpm is a very good package management tool. It is mainly used by RedHat, Suse, Fedora and centos. You can use rpm tool to create, install, query…
RHCE Exam Objectives
RHCE Exam Objectives RHCE exam candidates should consult the RHCSA Exam Objectives document and be capable of RHCSA-level tasks, as some of these skills may be required in order to…
Linux shortcuts commands
<strong>Linux shortcuts commands</strong> <Ctrl><Alt><F1> Switch to the first text terminal. Under Linux you can have several (6 in standard setup) terminals opened at the same time. <Ctrl><Alt><Fn> (n=1..6) Switch to…
sed examples
sed is one of the very early Unix commands built for command line processing of data files. [root@dev mark]# cat file1 abc adbcd abcd ab efgh ab [root@dev mark]# sed…
Unix/Linux System Administration Course
We provide Linux System Administration courses through our experience instructors. If you are interested, please contact us. What we cover? !! Linux System Administration Course Overview System Administration Overview Unix,…
How to fill up disk space for testing purpose
You can use dd command to fill up space. root@saturn tmp]#dd if=/dev/zero of=/tmp/file1 bs=1024 count=1310720 root@saturn tmp]# df -k . Filesystem 1K-blocks Used Available Use% Mounted on /dev/mapper/VolGroup00-tmp 1523568 1360312 …
Linux ACL getfacl and setfacl examples
Create and manage Access Control Lists (ACLs) ACL is really useful when you are trying to give permission for specific userIDs. First you need to remount the file system with…
Linux/unix cron job guide and examples
o Schedule tasks using cron We need to make sure that crond daemon is configured on bootup time. # chkconfig –list crond crond 0:off 1:off 2:on 3:on 4:on 5:on 6:off…