RHCE:- Manage user accounts and groups, permissions, set umask, vi/vim editors, Links, sudoers setting, IP-forwording, swap setting, managing consoles, managing partition, rescue operation, backup with (dump & tar ) rsync, scp, mounting ( temporary and permanent ), reading ( .iso, .img, initrd image ) Kill, Network Configuration, Securing telnet/ssh Scheduling ( cron & at ), Lvm, User quota, Network Installation ( PXE, Kickstart, ftp, http, VNC), Core virtualization Redhat KVM and RHEV, Multipathing,Udev rules.
User administration (setup and maintaining account)
Bash Scripting
Maintaining linux based servers.
Verify that peripherals are working properly.
Quickly arrange repair for hardware in occasion of hardware failure
Create file systems. ( Create Partition, LVM and RAID)
Install software via RPM, deb or YUM
Create a backup and recovery policy
Monitor network communication.
Update system as soon as new version of OS and application software comes.