Posts

Never stop learning

#TIL : Use journalctl to check system logs

I learned on 2018-01-22 about sysadmin, logging

Never stop learning

#TIL : Getting your external IP

I learned on 2017-11-24 about sysadmin, ip, dns

Getting AWS, GCP and Azure IP ranges

Get list IP ranges of cloud providers

Never stop learning

#TIL : Using netcat as tiny TCP debug tool

I learned on 2017-10-07 about sysadmin, tool, networking

Never stop learning

#TIL : TIME command output meaning

I learned on 2017-10-04 about sysadmin, cpu, time

Never stop learning

#TIL : BASH tracing commands

I learned on 2017-09-27 about sysadmin, shell, bash

Never stop learning

#TIL : BASH exiting on first error

I learned on 2017-09-26 about sysadmin, shell, bash

Never stop learning

#TIL : BASH return a value in function

I learned on 2017-09-26 about sysadmin, shell, bash

Never stop learning

#TIL : Blocking specified country to prevent from DDOS

I learned on 2017-09-25 about sysadmin, firewall, networking