Did you edit your /etc/mail/sendmail.mc? Specifically the line: DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA') You need to remove the Addr=127.0.0.1 portion, or sendmail will only listen on localhost. After you make the change, you need to do a "service sendmail restart". On Thu, 2004-03-18 at 12:00, Todd wrote: > Greetings. > > I am setting up a server that will be public IP facing and would like to > ensure that the only ports accessible to the public are: ssh, http, and > smtp. > > I have the following rules set for the ACCEPTS: > > ACCEPT tcp -- anywhere anywhere state NEW tcp > dpt:smtp > ACCEPT tcp -- anywhere anywhere state NEW tcp > dpt:http > ACCEPT tcp -- anywhere anywhere state NEW tcp > dpt:ssh > > but a nmap scan of the server shows that port 25 is closed: > > 22/tcp open ssh > 25/tcp closed smtp > 80/tcp open http > > Any assistance would be greatly appreciated. > > Thanks. > > - Todd -- Adam Voigt adam@xxxxxxxxxxxxx
