LouWii

Quick guide to setup and make a server "secure"

Setup auth

From: https://support.rackspace.com/how-to/configuring-basic-security/

Once you get your root access to the server, that's cool but not very safe.

Change password

LouWii

# Edit your crontab file using crontab -e command 
#
# Example of job definition:
# .---------------- minute (0 - 59)
# |  .------------- hour (0 - 23)
# |  |  .---------- day of month (1 - 31)
# |  |  |  .------- month (1 - 12) OR jan,feb,mar,apr ...
# |  |  |  |  .---- day of week (0 - 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat
# |  |  |  |  |
# *  *  *  *  * user-name command to be executed

LouWii

#!/bin/sh

# Empty all rules
sudo iptables -t filter -F
sudo iptables -t filter -X

# Bloc everything by default
sudo iptables -t filter -P INPUT DROP
sudo iptables -t filter -P FORWARD DROP
sudo iptables -t filter -P OUTPUT DROP