Enable IPv6 connectivity for Nginx

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Mattias Geniar, March 15, 2012

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Enabling IPv6 connectivity in Nginx is very easy, providing you already have a valid IPv6 connection/IP on your server. You should normally already have a configuration as follows.

server {
        listen          80;
        server_name     a.b.c;
}

First, verify that your nginx is configured for IPv6.

# nginx -V
... --with-ipv6 ...

Now, you can change your nginx configuration file to enable IPv6. To create server-block that listens on all available IPv6 IPs as well as IPv4, add this.

server {
        listen          :80;
        listen          [::]:80;
        server_name     a.b.c;
}

If you want a server-block that only listens on IPv6 and not IPv4, make use of the ipv6only flag.

server {
        listen          [::]:80 ipv6only=on;
        server_name     a.b.c;
}

Binding IPv6 on a single IP can also be done as such.

server {
        listen          [2a03:a800:2:1::1]:80 ipv6only=on;
        server_name     a.b.c;


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