gethostbyaddr() doesn't work.

[mikefn]

Hi Folks,

I'm using Red Hat 7.1. I want to use function gethostbyname() and gethostbyaddr().
Seems my server can't find any DNS (Domain Name Server) unless it's included in file /etc/hosts/
Does anyone know how to solve this problem?
Thank you.

Mike

[Anon]

This isn't a PHP problem, but rather a system administration problem. Ordinarily your machine should know about DNS by being properly configured, either explicitly or through DHCP. You could try placing the address of a valid DNS server in /etc/resolv.conf.