Am Sa, den 23.07.2005 schrieb Eric Wagar um 2:44: > I have the following in my iptables: > -A RH-Firewall-1-INPUT -i lo -j ACCEPT > -A RH-Firewall-1-INPUT -p icmp -m icmp -m limit --icmp-type echo-request > --limit 2/second -j ACCEPT > -A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT > # SSH > -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 22 -j ACCEPT > # Mail > -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 25 -j ACCEPT > -A RH-Firewall-1-INPUT -p tcp -m tcp -m multiport -j ACCEPT --dports > 21,80,6969 > # DNS > -A RH-Firewall-1-INPUT -p tcp -m tcp -s 209.25.194.144/255.255.255.240 > -d 209.25.194.144/255.255.255.240 --dpor t 53 -j ACCEPT > # SideKick Chat Server > -A RH-Firewall-1-INPUT -p tcp -m tcp --dport 2224:2225 -j ACCEPT > # SideKick Streaming Server > -A RH-Firewall-1-INPUT -p tcp -m tcp -m multiport -j ACCEPT --dports > 8009,8080 > # Pings > -A OUTPUT -p icmp -m icmp -m limit --icmp-type echo-reply --limit > 2/second -j ACCEPT > # Outbound FTP and Mail > -A OUTPUT -p tcp -m tcp -m multiport -j ACCEPT --sports 20,25 > # SideKick Chat Server > -A OUTPUT -p tcp -m tcp --sport 2224:2225 -j ACCEPT > -A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited > # SideKick Streaming Server > -A OUTPUT -p tcp -m tcp -m multiport -j ACCEPT --sports 8009,8080 > COMMIT > > Unfortunately, for what ever reason, I get no response when I try to > telnet to port 25. Do I miss some port somewhere when I was setting > this up? > eric By default setup the MTAs Sendmail and Postfix (both Core - not sure how exim from Extras is configured as shipped) are bound to localhost only. netstat -alpen | grep ":25" That command will show you whether you changed the configuration so that the MTA is not only listening with 127.0.0.1:25. If you need to reconfigure then for Sendmail edit the commented part in /etc/mail/sendmail.mc and restart the daemon afterwards, for Postfix run postconf -e "inet_interfaces = all' and restart it. Alexander -- Alexander Dalloz | Enger, Germany | GPG http://pgp.mit.edu 0xB366A773 legal statement: http://www.uni-x.org/legal.html Fedora Core 2 GNU/Linux on Athlon with kernel 2.6.11-1.35_FC2smp Serendipity 02:49:06 up 7 days, 7:21, load average: 0.13, 0.15, 0.17
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