Nginx ipv6only setting gotcha
Summary A brief tip on the symptoms of configuration gotcha I ran into when binding Nginx on IPv4 and IPv6 networks. The fix was to set ipv6only=off in the listen directive. Recently I upgraded to Nginx 1.4.0 on my the host for this website from an older version of Nginx. After the upgrade I found that connections to port 80 from IPv4 hosts were refused. Connections from IPv6 enabled hosts worked fine....