On 2008-11-10, Kevin Oberman <[EMAIL PROTECTED]> wrote: > Melanie Pfefer wrote: > >> What ports need to be opened if my ntp servers are inside a firewall? > > 123/udp
ntpd communicates with other ntpds via port 123/UDP (as both the source and destination port). If you are using a statefull firewall ( or are behind NAT) and do not need to make your ntpd pulically accessible you should not have to do anything to allow ntpd to work. If your firewall is not "statefull", or you wish to make your ntpd publically accesible, you need to allow both incoming and outgoing connections via port 123/udp. -- Steve Kostecke <[EMAIL PROTECTED]> NTP Public Services Project - http://support.ntp.org/ _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
