If you have a server with a world facing ssh server, you’ve probably seen brute force attacks in your logs. Some machine starts hammering your ssh server, trying all sorts of logins (staff,... Read more
For years, on security forums and mailing lists, if you ever dared to suggest changing SSH’s default port (TCP 22) the “security by obscurity” crowd would come out of the woodwork and nail y... Read more
After several hours spent studying the functioning of IPTABLES Linux, I created a script that builds a firewall for a PC connected to the Internet. Read more
