We are running RedHat Linux on two front end webservers both running Apache HTTP Server.
I have done a diff on both httpd.conf files and there are no differences but the server hostnames. We have seen some issues were one of the servers is sending a reset to the load balancer when a request is made to the 1st webserver. so I noticed somthing unique:
When I run netstat-an | grep 80 | grep LISTEN the results are different.
1st shows: 0.0.0.0:80 LISTEN (I am used to seeing this which I believe allows any IP on server to respond over port 80.
2nd shows: :::80 LISTEN (I have never seen this before)
Can anyone explain why the 2nd webserver looks different than the first? And if this is a problem or no big deal? Thanks