Linux

Move or migrate user accounts from old Linux server to a new Linux server – nixCraft

Posted on February 28, 2019 by Nick

Source: Move or migrate user accounts from old Linux server to a new Linux server – nixCraft

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Add a User to a Linux Group

Posted on September 5, 2018 by Nick

If you need to add an existing user to a Linux group it is very easy, just run the following command:

usermod -a -G <group name> <user name>

Posted in Guides, Linux | Tagged security, user | Leave a comment

Using iptables to route OpenVPN traffic

Posted on October 3, 2016 by Nick

To have your vpn traffic be able to reach the internet you just need to add the following iptable rules:

iptables -A FORWARD -i tun0 -j ACCEPT
iptables -A FORWARD -i tun0 -o eth0 -m state –state RELATED,ESTABLISHED -j ACCEPT
iptables -A FORWARD -i eth0 -o tun0 -m state –state RELATED,ESTABLISHED -j ACCEPT
iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -o eth0 -j MASQUERADE

This would take the tunnel adapter of tun0 and route the traffic through eth0 for the vpn subnet of 192.168.0.0.