nginx example

As long as your nginx support gzip, you just need to add gzip_static on; to your server section, ex:

server {
    gzip on;
    gzip_static on;    
    gzip_proxied  any;
    gzip_vary on;
    gzip_comp_level 6;
    gzip_buffers 16 8k;
    gzip_http_version 1.1;    
    ...
}