id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
345	Nginx 1.4.0 is not binding to IPv4 with [::]:80 on Ubuntu 13.04 when net.ipv6.bindv6only is set to false	Kasper Hirvikoski		"Nginx 1.4.0 is not binding to IPv4 with [::]:80 on Ubuntu 13.04 when net.ipv6.bindv6only is set to false.

{{{
server {

    listen [::]:80;
...
}
}}}

{{{
$ sysctl net.ipv6.bindv6only
net.ipv6.bindv6only = 0
}}}

{{{
$ sudo netstat -npl | grep nginx
tcp6       0      0 :::80                   :::*                    LISTEN      4265/nginx.conf
}}}

I can fix this by explicitly specifying Nginx to bind also to IPv4.

{{{
server {

    listen 80;
    listen [::]:80;
...
}
}}}"	defect	closed	major		nginx-core	1.3.x	invalid	ipv4, listen, bind		Linux jannite 3.8.4-linode50 #1 SMP Mon Mar 25 15:50:29 EDT 2013 i686 i686 i686 GNU/Linux	"nginx version: nginx/1.4.0
built by gcc 4.7.2 (Ubuntu/Linaro 4.7.2-2ubuntu1) 
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-mail --with-mail_ssl_module --with-file-aio --with-ipv6"