AWS, Recover from IP address change

Question

I want to recover from IP address change. My website used to be running fine, but after I allocated elastic IP address, it stopped working I want the website to be running again with new IP address. So my question is: What steps must I consider and where should I look at first to recover from IP address change?

I can't access that website with old DNS address or new DNS address. Is this DNS issue?

Notes that might be helpful:

• My web server seems to be using nginx, and I tried changing the configuration file with new dns, but that doesn't seem to do it.

• When I access new domain name, it redirects to old domain name. when I check with curl using curl -I http://localhost:80, it says HTTP/1.1 301 Moved Permanently

Answer 1

Just as an add on. The problem is this configuration change in your nginx file:

server {
    listen 80;
    server_name  my.old.domain.com;
    ...
}

Has to be changed to:

server {
    listen 80;
    server_name  my.new.domain.com;
    ...
}

So the DNS change can take up to 48 hours to propagate (it usually takes 10-30 minutes from experience, depending on your DNS provider)

When the DNS server wasn't propagated nginx would still redirect you to my.old.domain.com

Hope this helps.

Answer 2

Okay, I think it was just time issue.

After changing web server configuration (nginx), I waited around 28 hours and it suddenly started working again.

Source: Subdomain IP address changed but client still getting directed to old site