I installed it on a gentoo box and it's working fine. I can connect to it via pgadmin3 with server: localhost (or tux, as it's configured in my /etc/conf.d/hostname) and port 5432
I also installed vmware to run an xp SP1 box inside it.
I have conectivity between the gentoo host and the xp guest. I can ping each other. (but I can't ping by the machine name, just by the ip)
But I don't know how to connect from the xp guest to the postgresql server running on the gentoo host.
Putting "tux" in the server name, didn't work.
I tried with every ip address on the host (I have a couple, one is the vmnet8 interfase used for NAT net board emulation and the other is vmnet1 used for the host only network connection)