How To Test Linux Operating System for IPv6 Networking Support in Categories CentOS, Debian / Ubuntu, IPv6, Linux, Networking, RedHat and Friends, Troubleshooting, Ubuntu Linux last updated October 7, 2008Before I can start using IPv6 on a Linux server, how do I test, whether my Linux server system is IPv6 ready or not? If not, how do I enable IPv6 support under Redhat Enterprise Linux version 5?