(You can see this pretty-printed at http://serverfault.com/questions/168098/nginx-just-started-inserting-spurious-coms-into-our-urls )

I made some minor changes to our nginx config on Friday (deploying SSL certs: adding a server listening on 443 with the appropriate settings and adding a couple rewrite rules to forward certain requests to it) and all of a sudden our URLs started getting extra "/.com"s inserted into them. For example, clicking a link to http://domain.com/logout/ takes the user to http://domain.com/logout/.com/. http://domain.com/register/ forwards to http://domain.com/.com/register/. This doesn't happen with a subdomain (e.g. http://production.domain.com/logout/ just works) and it also doesn't happen with https://domain.com/ (so right now, as a workaround, the entire site is being served with https).

Our nginx serves static content and proxies dynamic requests to Apache, which is pretty standard for Django. This had been working fine for months; I have no idea why it stopped working. I can't even be sure the problem is at the nginx level, but that's the only thing I changed, so that's where my attention has been.

Any help/suggestions would be greatly appreciated.

Here are the relevant config files (again, the link above has this formatted nicely):


[quote=nginx.conf]
#######################################################################
#
# This is the main Nginx configuration file.
#
# More information about the configuration options is available on
# * the English wiki - http://wiki.codemongers.com/Main
# * the Russian documentation - http://sysoev.ru/nginx/
#
#######################################################################

#----------------------------------------------------------------------
# Main Module - directives that cover basic functionality
#
# http://wiki.codemongers.com/NginxMainModule
#
#----------------------------------------------------------------------

user nginx;
worker_processes 4;

error_log /var/log/nginx/error.log;
#error_log /var/log/nginx/error.log notice;
#error_log /var/log/nginx/error.log info;

pid /var/run/nginx.pid;



#----------------------------------------------------------------------
# Events Module
#
# http://wiki.codemongers.com/NginxEventsModule
#
#----------------------------------------------------------------------

events {
worker_connections 1024;
}


#----------------------------------------------------------------------
# HTTP Core Module
#
# http://wiki.codemongers.com/NginxHttpCoreModule
#
#----------------------------------------------------------------------

http {
include /etc/nginx/mime.types;
default_type application/octet-stream;

log_format main '$remote_addr - $remote_user [$time_local] $request '
'"$status" $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';

access_log /var/log/nginx/access.log main;

sendfile on;

keepalive_timeout 65;

# Load config files from the /etc/nginx/conf.d directory
include /etc/nginx/conf.d/*.conf;

# the upstream apache server
upstream django {
server localhost:9000;
}

upstream blog {
server localhost:9001;
}

server {
listen 80;
server_name www.domain.com beta.domain.com;
rewrite ^/(.*) http://domain.com/$1 permanent;
}


server {
listen 80;
server_name domain.com production.domain.com;
root /var/www/domain.com/;
access_log /var/log/nginx/domain.com.access.log;

location ~ ^/blog/ {
proxy_set_header Host $host;
proxy_pass http://blog;
}

location / {

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;

if (-f $request_filename/index.html) {
rewrite (.*) $1/index.html break;
}

if ($request_filename ~ "/register/") {
rewrite ^/(.*) https://domain.com/$1 permanent;
}

if ($request_filename ~ "/accounts/subscription/") {
rewrite ^/(.*) https://domain.com/$1 permanent;
}

# temporary workaround for weird .com bug
rewrite ^/(.*) https://domain.com/$1 permanent;

if (!-f $request_filename) {
proxy_pass http://django;
}
}
}

server {
listen 443;
server_name domain.com production.domain.com;
root /var/www/domain.com/;
access_log /var/log/nginx/domain.com.https.access.log;
error_log /var/log/nginx/domain.com.https.error.log;

ssl on;
ssl_certificate /etc/nginx/conf.d/full.crt;
ssl_certificate_key /etc/nginx/conf.d/pass_server.key;
ssl_prefer_server_ciphers on;

location / {

if (-f $request_filename/index.html) {
rewrite (.*) $1/index.html break;
}
if (!-f $request_filename) {
proxy_pass http://django;
}
[/quote]


[quote=conf.d/virtual.conf]
server {
listen 80;
server_name 11.22.33.44;
root /var/www/domain.com/;
access_log /var/log/nginx/domain.com.directip.access.log;

location / {
if (-f $request_filename/index.html) {
rewrite (.*) $1/index.html break;
}
if (!-f $request_filename) {
proxy_pass http://django;
}
}

}
[/quote]