Internet Protocol version 6 (IPv6) was designed by the Internet Engineering Task Force (the IETF) to expand the amount of IP addresses available. IPv6 addresses are 128-bit addresses, expressed in hexadecimal notation (for example, 2001:DB8:8::260:97ff:fe40:efab)....
One of the first lines of defense in securing your server is a functioning firewall. In the past, this was often done through complicated and arcane utilities. There is a lot of functionality built into these utilities, iptables being the most popular nowadays, but...
