MrBrown blob » nginx

Permanent redirect with nginx

CharlyBr — Fri, 20 Mar 2009 05:12:42 +0000

server {
    server_name domain.com;
    rewrite ^(.*)$ http://www.domain.com$1 permanent;
}

Nginx and worker_connections are more than open file resource limit warning

CharlyBr — Mon, 09 Mar 2009 20:30:26 +0000

If you encounter this warning message under Linux:

2009/03/09 21:23:19 [warn] 26827#0: 4096 worker_connections are more than open file resource limit: 1024

A solution is to use the command ulimit in nginx start script, just before lunching nginx:

[...]
ulimit  -n 65536
[...]

Fix nginx increase server_names_hash_bucket_size error

CharlyBr — Fri, 14 Nov 2008 09:28:10 +0000

When adding new virtual hosts in your nginx configuration file, you can experience this error message:

# nginx -t
2008/11/13 09:37:03 [emerg] 12299#0: could not build the server_names_hash, you should increase server_names_hash_bucket_size: 32
2008/11/13 09:37:03 [emerg] 12299#0: the configuration file /etc/nginx/nginx.conf test failed

server_names_hash_bucket_size controls the maximum length of a virtual host entry (ie the length of the domain name).

In other words, if your domain names are long, increase this parameter.

You need to add this flag in the http context:

http {
    server_names_hash_bucket_size 64;
    ...
}

After increasing the value, test your configuration file and reload nginx:

# nginx -t
2008/11/13 09:48:06 [info] 12315#0: the configuration file /etc/nginx/nginx.conf syntax is ok
2008/11/13 09:48:06 [info] 12315#0: the configuration file /etc/nginx/nginx.conf was tested successfully
# kill -HUP `cat /var/run/nginx.pid`

Rotate Nginx log files under FreeBSD

CharlyBr — Thu, 17 Jul 2008 05:15:12 +0000

To rotate your nginx log files, you can use the log file handler provided by FreeBSD: newsyslog.

Configuring /etc/newsyslog.conf

/var/log/nginx-access.log               644  7     1024 *     JC /var/run/nginx.pid
/var/log/nginx-error.log                644  7     1024 *     JC /var/run/nginx.pid

Before log rotation:

-rw-r--r--  1 root  wheel    104278002 Jul 16 11:35 nginx-access.log
-rw-r--r--  1 root  wheel      1509531 Jul 16 11:17 nginx-error.log

After log rotation: