So I have an app that spins up a web service at http://localhost:4206.
I have copied the app to an EC2 instance, and now want to start the service, but allow everyone (external consumers) to hit the service. I know that I can configure nginx to add a forward proxy from port 8080 (external) to my server's port (4206).
I've found the following guide: https://ef.gy/using-nginx-as-a-proxy-server
However, I'm unsure of what exactly on this guide I should be doing...
What should this snippet look like for me?
server {
listen 8080;
location / {
resolver 8.8.8.8;
proxy_pass http://$http_host$uri$is_args$args;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
Some direction would be appreciated. Thanks!
server {
# Port
listen 8080;
# Set the name of the virtual server
server_name _;
# Proxy pass everything to http://localhost:4206/
location / {
proxy_pass http://localhost:4206;
# Set the proxied host
proxy_set_header Host localhost;
}
}
Read more on proxy_pass and other directives here: http://nginx.org/en/docs/http/ngx_http_proxy_module.html
Related
I installed Nginx on my server (my server uses WHM). And on this server has two accounts. Each account will run a server a NextJS site and each account has its own domain.
Site1 will run on port 3000
Site2 will run on port 3004
What I want to do is:
I want to access domain1 I see the content of my site1 in NextJS that runs on localhost:3000
And when I access domain2 I see the content of my site2 on NextJS running on localhost:3004
I tried to do a Nginx implementation for site1. But when I accessed it I saw a Cpanel screen, and the url was dominio1/cgi-sys/defaultwebpage.cgi
Here's the Nginx implementation I tried to do:
server {
listen 80;
server_name computadorsolidario.tec.br www.computadorsolidario.tec.br ;
location / {
proxy_pass http://localhost:3004;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
}
}
So how do I do this setting for nginx to have this behavior? And I'm changing the correct file?
Note: I created the configuration file in /etc/nginx/conf.d/users/domain1/domio1.conf And within /etc/nginx/conf.d/users have several configuration files with the name of the accounts you have on the server. (They are already implemented.)
Try
server {
listen 80;
server_name www.domain1.com;
proxy_pass http://127.0.0.1:3000;
}
server {
listen 80;
server_name www.domain2.com domain2.com;
proxy_pass http://127.0.0.1:3004;
}
Each domain listens on same port and reverse-proxies to local network on the ports you specify. To differentiate between hosts, specify the server_name field.
server {
listen 80;
server_name www.domain1.com;
location / {
proxy_pass http://127.0.0.1:3000;
}
}
server {
listen 80;
server_name www.domain2.com domain2.com;
location / {
proxy_pass http://127.0.0.1:3004;
}
}
I am configuring Nginx load balance with Nginx upstream module, configuration as follow:
upstream load {
server loadapi.example.com;
server loadapi.anotherdomain.com down;
}
server {
listen 80;
server_name api.example.com;
location / {
proxy_pass http://load;
# proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
}
server {
listen 80;
server_name loadapi.example.com;
root /disk/projects/load/loadapi;
index index.html index.htm index.shtml index.php;
...
...
error_page 404 /404.html;
}
Notice that the api.example.com and loadapi.example.com are on the same server. loadapi.anotherdomain.com is resolved to another server which provides the same service.
Everything works fine with loadapi.anotherdomain.com, which are on another server.
But when I use the loadapi.example.com as the backend, it seems that Nginx cannot handle it correctly. I can get my service up and running on loadapi.example.com. But it is not working with the upstream.(look like Nginx cannot resolve the subdomain name correctly).
any advice? thx in advance.
nginx uses the Host header to determine which server block to use to process a request.
When the request passes through the proxy_pass http://load; statement, the Host header is set to the value load by default.
To make nginx choose the server block containing the server_name loadapi.example.com; statement, it either needs to be the default_server server, or include the name load in its server_name, or set the Host header using:
proxy_set_header Host loadapi.example.com;
Of course, using upstream for load balancing means that both servers receive the same value for the Host header, and must both respond correctly to it.
See this document for more.
I have 2 servers,
The first one contains 2 websites (located in 2 separate directories):
https://example.com/site1
https://example.com/site2
The second server contains 1 website in root folder (React website).
Can you please help me to set up nginx on first server to make it point to the second server when user access to https://example.com.
Since nginx would be running in port 80, thus you need to run your web hosting content onto another port for example port 3000 from your first server.
In your nginx.config file, you would need to create an upstream where you list the server that nginx needs to re-route to: (before making changes to the file, i would recommend that you make a copy of it)
events {
worker_connections 768;
# multi_accept on;
}
upstream server_banks {
server localhost:3000; # if not localhost put the ip of the server
server second_server_ip:portNumber;
}
server { # nginx service will operate on port 80
listen 80;
server_name example.com
# it could your first server's ip or example.com if the domain is associated with that ip
location / {
proxy_pass http://server_banks;
}
}
After you save the config, reload service && restart
You need nginx running on both server2 and server2, then set nginx config as follow
On Server 1
#####server1####
server {
listen 443;
server_name example.com;
location / {
proxy_pass http://second_server_ip:80;
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
}
location /site1 {
alias /path/to_site1_dir/;
}
location /site2 {
alias /path/to_site2_dir/;
}
}
On server 2
###Server2#####
server {
listen 80;
server_name localhost;
root /path/to_site_dir_for-server2;
location / {
}
}
I would like to run 2 jenkins server behind nginx reverse proxy, but I can not find the proper to configure it.
The config below is working fine
location /jenkins {
proxy_pass https://contoso.com/jenkins;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
If i try to change location to /jenkins_test, than it does not work anymore.
What do I wrong?
You will need two define each jenkins instance in its own server section.
Then depending on the url that you are calling on nginx, the right jenkins server will respond.
Your nginx config could have a structure like this:
http{
# application server for first jenkins instance
upstream app_servers_first_jenkins_instance {
# if jenkins is running on the same server this should be something like 127.0.0.1 ...
server https://contoso.com/jenkins;
}
# application server for secons jenkins instance
upstream app_servers_second_jenkins_instance {
server https://contoso.com/jenkins;
}
# JENKINS SERVER 1
server{
listen 80;
server_name jenkinsfirstinstance.yourdomain.com;
location / {
proxy_pass http://app_servers_first_jenkins_instance;
}
}
# JENKINS SERVER 2
server{
listen 80;
server_name jenkinssecondinstance.yourdomain.com;
location / {
proxy_pass http://app_servers_second_jenkins_instance;
}
}
} # END OF HTTP SECTION
In this example both urls will call the same jenknins endpoint (https://contoso.com/jenkins) if you want them to be different jenkins instances you will have modify this url in one of the upstream sections
If you want to run 2 servers behind the nginx proxy, that's mean you need 2 location contexts (also called "blocks").
In your configuration file which is probably located in /etc/nginx/sites-availables you should add the locations:
http{
listen 80;
location /jenkins1 {
proxy_pass http://jenkins1-local-ip-address:8000;
include /etc/nginx/proxy_params;
}
location /jenkins2 {
proxy_pass http://jenkins2-local-ip-address:8001;
include /etc/nginx/proxy_params;
}
}
One thing you schould note is that I consider that your jenkins server is in same LAN (Local Area Network) otherwise it will not make sense to habe a proxy in front because your sever is already accessible via internet.
If your jenkins servers are accessible via HTTPS you schould change http to https in a location context and edit the port number to listen 443 and some ssl certificates configurations.
As a Nginx newbie i am trying to get a reverse proxy working to an external domain. Later on I will need to port to an internal domain. When trying to reverse proxy to an external domain i seem to hit a wall and the response is a 404 cannot be found.
The goal is when i try to access http://localhost/example the reverse proxy serves www.example.com.
This is my config:
server {
listen 80;
server_name localhost;
location / {
root /usr/share/nginx/html;
index index.html index.htm;
}
location /example/ {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_pass http://www.example.com/;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
}
Any hint what i am doing wrong?
When speaking about http, webserver detects which of configured servers was requested by checking Host header. In you case, you tell nginx to proxy requests to another server, but instruct it to pass original Host header to that server. Obviously, there is no configuration on remote server, which could accept request with that domain. So it responds you with 404.
To make it work, just change header to proxy_set_header Host www.example.com; where instead of www.example.com you should use same host as in proxy_pass directive. (or same variable)