Thought I should mention in case anyone else is having trouble: It occurred to me right when I sent my email out that my version of Apache might simply not support IPv6. Turns out I was right. It's weird that the CentOS 6 bundled yum sources provide an IPv4 -only Apache but it is what it is. Perhaps I will try to find a Fedora source for Apache 2.4.
Thanks, Nader On Sun, Jun 29, 2014 at 5:18 PM, Nader Zeid <nader.z...@gmail.com> wrote: > > I'm using Apache to front-end some servers listening on loopback but the > ProxyPass directive doesn't like IPv6 addresses. > > I spin up a server on IPv6 address [::1]:8001, confirmed working using > cURL and shown here on nestat: > > tcp 0 0 ::1:8001 :::* > LISTEN 1348/./WebToolsTest > > I use the following ProxyPass directive: > > ProxyPass / http://[::1]:8001/ > ProxyPassReverse / http://[::1]:8001/ > > However, when I try to connect using any HTTP client, I get the following > error in logs: > > [Sun Jun 29 21:12:40 2014] [error] [client 24.228.250.155] proxy: DNS > lookup failure for: ::1 returned by / > > When I switch everything to IPv4, i.e. bind the back end to 127.0.0.1:8001 > and switch ProxyPass, *everything* works fine. > > Why would mod_proxy accept IPv4 addresses but not IPv6? Why is it doing a > DNS lookup on IPv6 addresses? > > Thanks, > > Nader > >
