Ubuntu 18.04 LTS Set Hostname Permanently

Ubuntu 18.04 LTS Set Hostname Permanently   In this article I will show how to set hostname in Ubuntu server 18.04 permanently. Lets say my server old hostname is: serv and should be changed to: serv1. Ubuntu Server 18.04 Set… Continue Reading

Zimbra. Postfix_rbl_override.lmdb: No such file or directory

Zimbra. Postfix_rbl_override.lmdb: No such file or directory How to fix Zimbra mail server error: lmdb:/opt/zimbra/conf/postfix_rbl_override is unavailable. open database /opt/zimbra/conf/postfix_rbl_override.lmdb: No such file or directory. To build missing postfix_rbl_override.lmdb file run postmap and zmprov. # /opt/zimbra/common/sbin/postmap /opt/zimbra/conf/postfix_rbl_override # /opt/zimbra/bin/zmprov mcf… Continue Reading

Useful Netcat Examples and Tutorial

Useful Netcat Examples

Useful Netcat Examples In this netcat tutorial you can see useful netcat examples to help you use this powerful tool. Netcat (nc – in short) can be called “Swiss army of knife” in Linux network terminal utilities. Netcat can be… Continue Reading

Mass Unfollow Instagram Python Script

Instagram

Mass Unfollow Instagram Python Script I found great Python script that allowing automatically unfollow accounts you are following, but that doesn’t follow you back. import argparse import random import sys import time from InstagramAPI import InstagramAPI def GetAllFollowing(bot, user_id): following… Continue Reading

Best Hard Drives for NAS of 2019

Best Hard Drives for NAS

Best Hard Drives for NAS of 2019 Traditional mechanical hard drives are still very widely used in NAS (Network Attached Storage). Although hard drives lose at the speed of modern SSD drives, but they absolutely win on the price. It… Continue Reading