Security
4 easy methods to check sudo access for user in Linux
How to check sudo access for a normal user? Is it possible to know if a user has sudo access using a script without password prompt?
How to disable SELinux (with and without reboot)
What is SELinux and how can i disable SElinux permanently with or without reboot. Change SELinux mode runtime using setenforce. Enable permissive mode for …
SOLVED: SSH fails with postponed publickey error
[Solved} Steps to debug and fix postponed publickey error leading to SSH connection failure. You may also get ROOT LOGIN REFUSED, Failed pubkey, permission …
How to disable ICMP timestamp responses in Linux
Iptables rule to disable ICMP timestamp responses in Linux. Block ICMP timestamp request (13) and ICMP timestamp reply (14). Verify using hping3 or nping
Linux sftp restrict user to specific directory | setup sftp chroot jail
how to configure sftp server in linux step by step to sftp restrict user to specific directory in Linux Setup sftp chroot jail with authorized_keys passwordless …