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Linux hard reboot and System Request Key
Sometimes we need to reboot remote machine. But all we get an error in console.
Testing IMAP and POP3 servers over the telnet
Command list of IMAP and POP3 protocols. They can be used to test your server remotely over telnet connection.
Reset mysql password in several steps.
Make new password for mysql user in 5 simple steps.
Login restriction by time over pam.d
If you I want to allow users log in in to system only at working hours use pam_time.so module. This example works on CentOS and I suspect that it will be work at RHEL as well.
How to export NFS home directories over the Autofs
Step-by-step instruction to get benefits from NFS and Autofs.
SSH connection without password
SSH password-less log in method.
Quickstart: backup on hard disk with AMANDA
In this post I will explain how to backup data to hard disk instead of tape with amanda backup tools over the network.
SElinux tips and tricks
Short notes about base SELinux commands.
OpenVPN connection between two points
We have two host which have to be connected by VPN connection. For our connect I am going to use OpenVPN software.
Bash hotkeys
Here is the table of bash hotkeys.
