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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]What's closing off port 25?
- To: Tokyo Linux Users Group <tlug@example.com>
- Subject: What's closing off port 25?
- From: Jonathan Q <jq@example.com>
- Date: Wed, 23 May 2001 19:50:48 +0900
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Inching toward running a local MX, I was taking Sendmail out for a testrun today (standard RH 7.1 package 8.11.2-14), and always get connection refused if I telnet to port 25, unless it's from localhost. /etc/hosts.deny and /etc/hosts.allow are empty. The ipchains rules should be letting it in (also, both shutting down ipchains and removing all rules have no effect at all): :input ACCEPT :forward ACCEPT :output ACCEPT -A input -s 0/0 -d 0/0 22 -p tcp -y -j ACCEPT -A input -s 0/0 -d 0/0 25 -p tcp -y -j ACCEPT -A input -s 0/0 -d 0/0 -i lo -j ACCEPT -A input -p tcp -s 0/0 -d 0/0 0:1023 -y -j REJECT -A input -p tcp -s 0/0 -d 0/0 2049 -y -j REJECT -A input -p udp -s 0/0 -d 0/0 0:1023 -j REJECT -A input -p udp -s 0/0 -d 0/0 2049 -j REJECT -A input -p tcp -s 0/0 -d 0/0 6000:6009 -y -j REJECT -A input -p tcp -s 0/0 -d 0/0 7100 -y -j REJECT The SMTP connection is getting to the machine, so no access lists are in the way: 19:34:04.467447 eth0 < yamame.gol.ad.jp.46781 > uucp.yamame.org.smtp: S 4196896334:4196896334(0) win 5840 <mss 1460,sackOK,timestamp 53599200 0,nop,wscale 0> (DF) [tos 0x10] Yeah, sendmail is running :-) -bd -q1h It's probably something frightfully obvious that will make me look stupid when discovered :-) But between here and there, I'm open to suggestions. TIA, Jonathan
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