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NAT and NGINX on the same server

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http://serverfault.com – I'm setting up a VPC cluster for my collaborative todo list application www.getdoneapp.com. To have my servers on the private network I need a NAT server so my servers on the private network can connect to the internet to receive updates and what not. The NAT server will consume an elastic IP address, so I'm wondering if I can just have that NAT server run nginx to direct traffic to my internal servers for HTTP. So the question is, is it a bad idea to run NGINX and NAT on the same server, or should I go for consuming 2 elastic IP addresses? (HowTos)

taskli's picture
Submitted by taskli on 11/25/2012 – Made popular on 11/25/2012

Stories similar to NAT and NGINX on the same server

I am setting up Nginx servers behind the ELB.

I am extremely new to this so please don't shoot me down:

I have set up a Linode running Ubuntu, It is all sort of working except Nginx.

I am following this guide: http://rubysource.com/deploying-a-rails-application/

And this for nginx: http://library.linode.com/web-servers/nginx/installation/ubuntu-10.04-lucid

When I go to my IP, I get a 500 internal server error.

I have tried starting nginx

dI logged into my EC2 console created a new instance and attached an Elastice IP to it. Then I logged into the server and installed Nginx:

$ sudo apt-get install nginx $ sudo /etc/init.d/nginx start $ Starting nginx: nginx.

When I navigate to the Elastic IP (or Public DNS) I get nothing. The default setting should be enough to show me the default Nginx welcome page right?

I have 2 servers running CentOS 6

I have a server A, that has 2 network cards. eth0 is a private test network. eth1 is the corporate network, where a proxy server must be used to access the internet. On this server I use

export http_proxy=http://proxyserver:3128/

and am able to access the internet.

I have a server B that has 1 network card.

I have 2 frontend nginx servers going to 4 backend php-fpm servers which all run Wordpress.

I have a master caching server with nginx. Its setup with proxy_pass and proxy_cache. But I want to add more nginx caching servers in other locations that will all contain the same contents with master cache server. So it wouldnt matter to which server I send the request. Is it possible to just rsync the cache directory across all the servers?

There are many companies that load a web application for you on their servers like say wordpress etc., and since they have other customers on the same server I was curious how they do this w/o having to restart the web server?

If they do restart the web server, it would take down other client sites and that wouldn't be a good situation to be in.

Is it possible with nginx?

I have a private network with many servers and web based services running on it. There is no application level authentication. I would like to expose many of the servers to the internet, but I want to proxy it behind nginx with nginx providing authentication.

I am hoping someone can give me some help, as I am pretty new to Nginx. Thanks in advance.

Premise: I have a load balancing server (nginx upstream) in a test environment, load balancing between two web servers. I use the fail_timeout parameter because, if one server goes down, I cannot have it re-introduced until I have manually intervened, due to data integrity issues between the two.