Hi, We try to set "mostly closed system" for Debian "slink" boxes that operate primarily as X-terminals. So it has in hosts.deny "ALL:ALL"
Here what I set in hosts.allow: # ALL : localhost in.telnetd : .our.network : allow sshd : .our.network : allow in.ftpd : .our.network : allow in.smtpd : ALL : user mail.mail : allow portmap : .our.network : allow # # everything else is denied in /etc/hosts.deny Questions: 1. Does it have some striking errors? I bet I forgot some service... 2. We run xntp3 to set time, but we don't want to be an NTP server. Do one need to allow some ntp service (NTP protocol is quite sophisticated :( Thanks, Sasha.