I want to give remote access to my postresql db (8.2) to computers that are at the same lan, at the default config I have added this line to pg_hba.conf where xxx.xx.xx.xx is the ip of the machine that hosts postgresql. This machine is a windows 2k server.

# IPv4 local connections:
host    all         all         0.0.0.0/0         password
host    all         all         xxx.xx.xx.xx/24         password

There no firewall or such blocking the connection between and `listen_addresses = '*' for postgresql.conf .