On Thu, Oct 10, 2002 at 10:59:58AM +1000, Howard Lowndes wrote: > I asked the other day whether udp 53 -> 53 was kosher, and basically it's > not but apparently some lazy sysadmins try to save on ports.
53 -> 53 *is* kosher and it's nothing to do with being lazy. Versions of bind prior to 8.1 used source port 53 for all queries. Since then the default is to use an unprivileged port, but it can be configured to use port 53 (or any other port you like), and there's nothing wrong with doing so. There's no saving of ports: once it chooses a port it uses that one for all queries, so whether it's 53 or one above 1024, it's always the same port. > According to RFC1700: > > 24/tcp any private mail system > 24/udp any private mail system > # Rick Adam <[EMAIL PROTECTED]> > > It's interesting that the person who applied for this assignment is from > uu.net, or am I being too paranoid? You're being too paranoid. This was almost certainly in the days before uu.net became the somewhat disreputable organisation it is today :-) Cheers, John -- whois [EMAIL PROTECTED] GPG key id: 0xD59C360F http://kirriwa.net/john/ -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
