How Do I Secure My Linux Server?

Reading Time: 6 minutes

Our last article on Ubuntu security suggestions touched on the importance of passwords, user roles, console security, and firewalls. We continue with our last article and while the recommendations below are not unique to Ubuntu specifically (nearly all discussed are considered best practice for any Linux server) but they should be an important consideration in securing your server. Continue reading “How Do I Secure My Linux Server?”

What is localhost?

Reading Time: 1 minute

localhost is a networking term; it’s the hostname for the loopback network interface of whichever server it’s said in reference to (meaning every server has a ‘localhost‘). The loopback interface bypasses any local network interface hardware, and serves as a method to connect back to the server itself. The term localhost is used often in both networking and in server administration.

IPv4 Localhost

The IPv4 address for localhost, or the loopback network interface, is 127.0.0.1.

IPv6 Localhost

The IPv6 address for localhost, or the loopback network interface, is ::1.