# Nginx proxy fails using v6 hosts?

**URL:** <https://www.ruby-forum.com/t/nginx-proxy-fails-using-v6-hosts/200502>\
**Category:** NGINX\
**Created:** [December 13, 2010, 10:11pm UTC](https://www.ruby-forum.com/t/nginx-proxy-fails-using-v6-hosts/200502 "2010-12-13T22:11:01Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Dobai-Pataky\_BSSSSl](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/77aa72/32.png) [@Dobai-Pataky\_BSSSSl](https://www.ruby-forum.com/u/Dobai-Pataky_BSSSSl)\
**Post date:** [December 13, 2010, 10:11pm UTC](https://www.ruby-forum.com/t/nginx-proxy-fails-using-v6-hosts/200502/1 "2010-12-13T22:11:01Z")

</div>

Hi,

me again, sorry.

I tried to use a internal v6 “only” host as proxy target, but i got  
this:  
30279#0: \*68 six.internal.tld could not be resolved (3: Host not found),  
client:  
::ffff:x.x.x.x, server: dualstack.external.tld, request: “GET /  
HTTP/1.1”, host:  
“six.internal.dualstack.external.tld”

nginx was accessed via. v4 on the dual stack box. The resolver is  
specified in  
the location, works for v4, on the box i can also resolve the v6, but  
nginx  
cannot or at least the proxy module?

Regards,  
Sven

---

<div class="post-metadata">

**Author:** ![Sven\_SDarkmanS\_Mich](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/e99b99/32.png) [@Sven\_SDarkmanS\_Mich](https://www.ruby-forum.com/u/Sven_SDarkmanS_Mich)\
**Post date:** [December 13, 2010, 11:30pm UTC](https://www.ruby-forum.com/t/nginx-proxy-fails-using-v6-hosts/200502/2 "2010-12-13T23:30:54Z")

</div>

Hello!

On Mon, Dec 13, 2010 at 10:09:47PM +0100, Sven ‘Darkman’ Michels wrote:

> I tried to use a internal v6 “only” host as proxy target, but i got this:  
> 30279#0: \*68 six.internal.tld could not be resolved (3: Host not found), client:  
> ::ffff:x.x.x.x, server: dualstack.external.tld, request: “GET / HTTP/1.1”, host:  
> “six.internal.dualstack.external.tld”
> 
> nginx was accessed via. v4 on the dual stack box. The resolver is specified in  
> the location, works for v4, on the box i can also resolve the v6, but nginx  
> cannot or at least the proxy module?

Proxy (as well as other backend modules) doesn’t support IPv6.

Maxim D.