Change SSH port on CentOS 8 (with SELinux and Fail2Ban)
One of the most common tasks when setting up a SSH server is to change the SSH port. Changing the SSH port, as you will see in the next paragraph, is a trivial task. On CentOS,...
Tagged: firewall
How to setup a VPN server with OpenVPN
OpenVPN is one of the mostly used VPN solutions and the leading open source VPN. Using SSL it allows to create VPN tunnels to encrypt all the traffic going in. Today let’s take a look at...
Set up a modern point-to-point VPN with WireGuard
WireGuard is a new, simple, secure and fast way to set up a point-to-point VPN between two machines. Cryptography naturally adds an overhead to the communication, so it is important its implementation is as fast as...
Change SSH port on CentOS 7 (with SELinux and Fail2Ban)
One of the most common tasks when setting up a SSH server is to change the SSH port. Changing the SSH port, as you will see in the next paragraph, is a trivial task. On CentOS,...
How to manage Ubuntu Firewall (like a boss)
A firewall is a security system used to control network traffic going in and out of computers. Today we might take it for granted, however the firewall still remains one of the most important security devices...
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