How did the /etc/resolv.conf appear?

[[LoN]Kamikaze]

a at zeos.net wrote:
> The automatically installed /etc/resolv.conf
> contains the next:
> 
> nameserver 82.207.67.2
> nameserver 213.179.244.18
> 
> Today I discovered that this servers is not servers of FreeBSD.org 
> or InterNIC, but of my ISP.
> 
> I wonder how the system found these IP addresses?

The entries are created by dhclient or whichever different program establishes the connection, when it receives the necessary information (your IP, gateway and the nameservers to use) from your ISP.