Hi Fiorenza!
I have a Linux box which has two network interfaces: the first one listens on a public IP address, the second listens on a local IP address. I'd like to configure xinetd so that an incoming request on port 110 (on the interface which has the public address) is redirected to our real POP3 server, which is on a local intranet. I installed Linux 7.2. I connect successfully to the port 110 of linux box, but as I'm connected the connection is closed. Probably it is a configuration mistake.
I see two potential problems:
service pop3 { socket_type = stream protocol = tcp wait = no user = root server = /usr/sbin/ipop3d
I may be wrong with this one, but when you use "server" and "redirect" together, then "server" gets precedence, and "redirect" is ignored, if I remember correctly.
server_args = -s redirect = mail.robinson.it 110 only_from = 10.10.3.7 10.10.3.4 }
The only_from field looks like it only allows access to the pop3-port from your private network, while from your description it seems you want to access the pop3 port from the internet. That would explain the problems... Ciao, Yuri.