ipv6 on Debian with Nginx

ipv6 on Debian with Nginx

First, make sure nginx is built with IPv6 support
Code:
root@debian:~# nginx -V | grep -w ipv6
nginx version: nginx/1.7.1
built by gcc 4.7.2 (Debian 4.7.2-5)
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_stub_status_module --with-http_auth_request_module --with-mail --with-mail_ssl_module --with-file-aio --with-http_spdy_module --with-cc-opt='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2' --with-ld-opt='-Wl,-z,relro -Wl,--as-needed' --with-ipv6
You will also need to know your IPv6 range, and what address(s) you want to use.

In this example, I have a /128 allocation of IPv6 addresses to use:
Code:
          inet6 addr: fe80::4e72:b9ff:fe7b:b275/64 Scope:Link
          inet6 addr: 2001:41d0:8:c463::1/128 Scope:Global
Scope:Link is the mac address of the interface, and Scope:Global is the usable range.

So, I'm going to add the 2nd address in the range to the interface:
Code:
/sbin/ip -6 addr add 2001:41d0:8:c463::2/128 dev eth0
This is now present in the ifconfig results
Code:
root@debian:~# ifconfig
eth0      Link encap:Ethernet  HWaddr 4c:72:b9:7b:b2:75
          inet addr:5.135.187.99  Bcast:5.135.187.255  Mask:255.255.255.0
          inet6 addr: fe80::4e72:b9ff:fe7b:b275/64 Scope:Link
          inet6 addr: 2001:41d0:8:c463::2/128 Scope:Global
          inet6 addr: 2001:41d0:8:c463::1/128 Scope:Global
You then need to add the address to the server block for your site in the nginx configuration
Code:
server {
    listen       5.135.187.99:80;
    listen       [2001:41d0:8:c463::2]:80;
    server_name  test.mattwservices.co.uk;
Restart nginx
Code:
service nginx restart
If you have the ability to from a different server, check you can ping the new IPv6 address
Code:
root@ny1:~# ping6 2001:41d0:8:c463::2
PING 2001:41d0:8:c463::2(2001:41d0:8:c463::2) 56 data bytes
64 bytes from 2001:41d0:8:c463::2: icmp_seq=1 ttl=53 time=1022 ms
64 bytes from 2001:41d0:8:c463::2: icmp_seq=2 ttl=53 time=79.9 ms
64 bytes from 2001:41d0:8:c463::2: icmp_seq=3 ttl=53 time=79.9 ms
64 bytes from 2001:41d0:8:c463::2: icmp_seq=4 ttl=53 time=79.9 ms
64 bytes from 2001:41d0:8:c463::2: icmp_seq=5 ttl=53 time=79.9 ms
Then, you will need to create an AAAA DNS record for the address
upload_2014-5-28_10-28-7.png
ping the new address
Code:
root@ny1:/etc/nginx/conf.d# ping6 test.mattwservices.co.uk
PING test.mattwservices.co.uk(2001:41d0:8:c463::2) 56 data bytes
64 bytes from 2001:41d0:8:c463::2: icmp_seq=1 ttl=53 time=79.8 ms
64 bytes from 2001:41d0:8:c463::2: icmp_seq=2 ttl=53 time=79.9 ms
64 bytes from 2001:41d0:8:c463::2: icmp_seq=3 ttl=53 time=80.0 ms
You can then validate the IPv6 connectivity using a website such as http://ipv6-test.com/validate.php
upload_2014-5-28_10-29-10.png
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