Serving a.html from apache while requesting b.html - nginx

I'm creating a nginx reverse proxy to apache. Apache runs on port 8080 and nginx on 80.
I hope to achieve the following;
When I request the page http://server/test.html it should be proxyed to http://server:8080/unknown.html
Later on I'll do some eval stuff on the pages and redirect the users to the right pages, but I can't even get this to work. I get the test.html back as response all the time.
My nginx config:
server {
listen 80;
root /var/www/;
index index.php index.html index.htm;
server_name example.com;
location / {
# try_files $uri $uri/ /index.php;
}
location ~ \.html$ {
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_set_header Host $host;
#rewrite ^/unknown.html;
proxy_pass http://127.0.0.1:8080;
proxy_redirect http://127.0.0.1/test.html http://127.0.0.1:8080/unknown.html;
}
location ~ /\.ht {
deny all;
}
}
I have zero experience yet, but I'm eager to learn how to get this working...

Firstly, the proxy_redirect directive is the opposite of what you need. It is only used to rewrite the Location response headers in 3xx responses from upstream. See this document for details.
You can use a rewrite ... break statement within the location block that performs the proxy_pass, for example:
location ... {
rewrite ^/test.html$ /unknown.html break;
proxy_pass ...;
}
See this document for details.

Related

Problem with nginx location and proxy_pass

I have a rule in my nginx.conf that does not work and I have no idea why. According to the documentation it should work. Part of the config looks like this.
The first rule on port 8100 works and redirects the call http://example.com/api/domains to https://localhost:8181/oan/resources/domains
# Working
server {
listen 8100 default_server;
server_name example.com;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $http_host;
root /var/www/html/example;
location /api {
proxy_pass https://localhost:8181/oan/resources; break;
}
# For ReactJS to handle routes
location / {
if (!-e $request_filename) {
rewrite ^(.*)$ / break;
}
}
}
# Not working
server {
listen 8200;
server_name api.example.com;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $http_host;
location / {
proxy_pass https://localhost:8181/oan/resources; break;
}
}
The last call to port 8200: http://api.example.com:8200/domains SHOULD redirect to: https://localhost:8181/oan/resources/domains but does NOT do that.
What is wrong with this config and how can I get the last rule on port 8200 do the correct stuff, always redirect to https://localhost:8181/oan/resources/$uri
When you use proxy_pass with an optional URI within a prefix location block, Nginx will transform the requested URI by performing a straight text substitution.
In your case, the prefix location value is / and the optional URI value is /oan/resources. So a requested URI of /foo will be transformed into /oan/resourcesfoo.
For correct operation, both values should end with / or neither end with /.
For example:
location / {
proxy_pass https://localhost:8181/oan/resources/;
}
See this document for details.

how to set the locaction in nginx.conf for removing URL's trailing slash?

Today I used two servers for nginx, the content of nginx.conf as follows:
#192.168.2.98
server {
listen 8091;
location ^~ /ttank {
alias /develop/servers-running/front/vue-public/dist;
index index.html;
try_files $uri $uri/ /ttank/index.html;
}
}
#192.168.2.97
location /ttank {
proxy_pass http://192.168.2.98:8091;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_redirect off;
}
I can access the 192.168.2.98:8091/ttank by enter address: http://192.168.2.98:8091/ttank in chrome, I also can access 192.168.2.98's ttank by entering the address http://192.168.2.97/ttank/, but when I change the addres http://192.168.2.97/ttank/ into http://192.168.2.97/ttank, my chrome entered into waiting status forever, the only difference between two addresses is the last "/", I don't know how to modify the config file for removing the last "/" when accessing ttank by 192.168.2.97?
Try usinge a rewrite rule to get rid of the ending slashes
location /ttank {
rewrite ^/(.*)/$ /$1 break;
...;
...;
proxy_pass ...;
}
it should do it

Setting Up Uberjar with Nginx on Digital Ocean VPS

I used the instructions on the following link:
"Hosting Clojure Web Apps in 7 Easy Steps"
I know the uberjar works because i tested it both on my dev machine and the VPS.
It's just that Nginx doesn't seem to be able to find it.
I suspect that it has something to do with this site code:
# Web sockets
location /chsk {
proxy_pass http://backend/chsk;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
...but I don't know how to correct it...thanks for the help!
One other thing: on the "upstream backend" in the site file i tried both 127.0.0.1:3000 AND 0.0.0.0:3000 with no success.
Here's the default site config:
server {
# Replace this port with the right one for your requirements
listen [::]:80 ipv6only=off;
# Multiple hostnames separated by spaces. Replace these as well.
server_name clmitchell.net www.clmitchell.net main.clmitchell.net
books.clmitchell.net dna.clmitchell.net help.clmitchell.net
history.clmitchell.net svcs.clmitchell.net;
server_name_in_redirect off;
root /data/nginx/www/$host;
error_page 401 /error/401.shtml;
error_page 402 /error/402.shtml;
error_page 403 /error/403.shtml;
error_page 404 /error/404.shtml;
error_page 500 501 502 503 504 /error/500.shtml;
location ^~ /error/ {
internal;
root /data/nginx/www/www.clmitchell.net;
}
access_log /var/log/nginx/$host-access.log;
error_log /var/log/nginx/error.log;
index index.php index.html index.htm default.html default.htm;
# Support Clean (aka Search Engine Friendly) URLs
location / {
try_files $uri $uri/ /index.php?$args;
}
# serve static files directly
location ~* \.(jpg|jpeg|gif|css|png|js|ico)$ {
access_log off;
expires max;
}
location ~ \.php$ {
try_files $uri =404;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
include fastcgi_params;
}
location ~ \.scm$ {
include fastcgi_params;
fastcgi_intercept_errors on;
# By all means use a different server for the fcgi processes if you need to
fastcgi_pass 127.0.0.1:9981;
}
location ~ /\.ht {
deny all;
}
}
I removed history.clmitchell.net from the list of server names.
Here's the current history site config:
upstream backend {
server 104.131.29.212:3000 fail_timeout=0;
}
server{
listen [::]:80 ipv6only=off;
server_name localhost history.clmitchell.net;
access_log /var/log/hist_access.log;
error_log /var/log/hist_error.log;
root /var//resources/public;
# Web sockets
location /chsk {
proxy_pass http://backend/chsk;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
# Static assets
location / {
try_files $uri #backend;
}
# The backend server
location #backend {
proxy_pass http://backend;
proxy_set_header Host $http_host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_redirect off;
}
}
there was a duplicate "listen" directive on the history site config, which i removed...but for some reason I'm still getting the error: '
sudo nginx -t
nginx: [emerg] duplicate listen options for [::]:80 in /etc/nginx/sites-enabled/hist:6
nginx: configuration file /etc/nginx/nginx.conf test failed
Please try
proxy_pass http://backend;
And make sure you can access http://127.0.0.1:3000/chsk if your upstream is defined as below
upstream backend {
server 127.0.0.1:3000;
}
Or if we has only one backend server we can just use proxy_pass without upstream backend defined. e.g.
proxy_pass http://127.0.0.1:3000;
I learned a new lesson today: no two sites on a Nginx web server can have the same listen port!
I moved the new site to a new port and updated all the links...PROBLEM SOLVED!

nginx not stripping www using rewrite

I want to strip the www from my url in my nginx configuration and looking around the documentation and stack overflow posts I wrote the following configuration but it doesn't seem to be working.
server_name {
server_name www.subdomain.domain.com;
rewrite ^(.*) https://subdomain.domain.com/$1 permanent
}
server_name {
server_name subdomain.domain.com;
listen 80 default_server;
listen [::]:80 default_server ipv6only=on;
root /file;
index index.html index.htm app.js;
location /{
proxy_pass https://subdomain.domain.com:443/;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
location /*/ {
proxy_pass https://subdomain.domain.com:443/;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
# Only for nginx-naxsi used with nginx-naxsi-ui : process denied requests
#location /RequestDenied {
# proxy_pass http://127.0.0.1:8080;
#}
error_page 404 /404.html;
}
But it doesn't seem to be working at all. However whenever I try to go to the site using www.subdomain.domain.com i can't access the site but doing https://subdomain.domain.com works fine. Any advice on this would be great thanks.
You have typo in nginx config (server_name instead server), and try return instead rewrite as more proper way:
server {
server_name www.subdomain.domain.com;
return 301 $scheme://subdomain.domain.com$request_uri;
}

nginx location matching for url params only

I need to rewrite any root subdomain requests and append locale params if they aren't already there. e.g. -> de.example.com needs to be rewritten as -> de.example.com/?locale=de. then I proxy it off to the app.
2 questions:
1) is this the correct approach? or should I be using regex instead here? (new to this
so if other problems, please lmk)
2) is there a way to log things inside the location block? Having trouble getting same config working on another server, logging would help. (e.g logging what args is if it isn't matching, or if it matches on another location block).
It only needs to happen on the root page so this is my current config
#existing default (nonsubdomain block)
server {
server_name _;
root /var/www/web_app;
try_files $uri/index.html $uri.html $uri #app;
location #app {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
proxy_pass http://app_server;
}
}
#just added for subdomain
server {
server_name de.example.com;
root /var/www/web_app;
location / {
try_files $uri/index.html $uri.html $uri #app;
}
location #app {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
proxy_pass http://app_server;
}
location = / {
if ($args != locale=de ){
rewrite ^ $scheme://de.example.com/?locale=de permanent;
}
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
proxy_pass http://app_server;
}
}
1) is this the correct approach? or should I be using regex instead here? (new to this so if other problems, please lmk)
You should use $arg_locale != de instead of $args != locale=de. Look at the docs: http://nginx.org/en/docs/http/ngx_http_core_module.html#var_arg_
2) is there a way to log things inside the location block? Having trouble getting same config working on another server, logging would help. (e.g logging what args is if it isn't matching, or if it matches on another location block). It only needs to happen on the root page so this is my current config
Debug log: http://nginx.org/en/docs/debugging_log.html

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