Tags "sysadmin"

#TIL : The safest way to reset root password of MySQL Server

#TIL : Curl override Name Resolution with specific IP address

#TIL : View DNS history of a domain

#TIL : Send a file through networking via netcat

#TIL : Create tiny chat channel via netcat

#TIL : Prepend line number to file

#TIL : Cut file content from line to line

#TIL : Create a sequence of numbers

#TIL : Prevent source hacking from .git directory exposing

#TIL : Use journalctl to check system logs

#TIL : Getting your external IP

#TIL : Using netcat as tiny TCP debug tool

#TIL : TIME command output meaning

#TIL : BASH tracing commands

#TIL : BASH return a value in function

#TIL : BASH exiting on first error

#TIL : Blocking specified country to prevent from DDOS

#TIL : Lock and unlock a user password

#TIL : Generate dhparam file faster

#TIL : Grep : find a string in folder

#TIL : Ansible playbook : skip to task

#TIL : Enable reverse proxy in CentOS

#TIL : Create SSH tunnel manually

#TIL : Cleaning up old linux kernels

#TIL : Gearman bash worker and client

#TIL : Resolving conflict like a boss

#TIL : Reducing docker image the right way

#TIL : Changing channel from alpha to stable will remove ALL DATA

#TIL : zcat : decompressing pipe tool

#TIL : Using BSD find util to find and exec command on file and folder

#TIL : wget Output flag

#TIL : Grant user to use sudo without password

#TIL : Compressing and Extracting files with rar in Linux

#TIL : Stats your top-10 frequently commands

#TIL : Bash shell shortcuts

#TIL : Commands

#TIL : View real-time logs using websocketd

#TIL : FTP via curl tool