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From: Kenneth Tindle <ktindle@pop.uky.edu> Date: 04 Jul 2003 19:43:44 -0400 Subject: PPR: lpr/lpd firewall rules The official spec for lpr/lpd calls for the server to use port 515, and the host to use 721:731. Because of TCP timeout issues, LPRng internally does not follow the spec, and will actually use 512:1023 for source port. Does PPR do either of these, or something different? I've in mind to use a newer JetDirect box with lpr/lpd, and need to write sane firewall rules in iptables.