Date: Tue, 12 Jun 2001 21:11:38 +0200 From: "Marcel Dijk" <nascar24@home.nl> To: <freebsd-security@freebsd.org> Subject: IPFW almost works now. Message-ID: <01c301c0f374$f3f3c910$0900a8c0@windows> References: <200106112347.JAA14067@caligula.anu.edu.au> <3B26177A.ED41EF99@centtech.com>
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Hello, Thanks to some advice here and http://freebsddiary.org my IPfirewall is almost how I want it now. Only to ports I want to be open are open now, and I can access the services behind these ports. The only problem is FTP. If I try to access the FTP daemon on port 5617 from for example my work (the FTP daemon runs at home) I get an error. I can connect, I have to give my username and pass. It then esstablishes a connection and tries to execute the LIST command. But then I get this error _______________________________________ Can't build data connection: interrupted system call. ABOR command succesfull. Connection Lost _______________________________________ If I set the firewall wide-open everything works perfectly, but ofcourse I don't want a wide open firewall. I have these IPFW rules defined: ________________________________________ 00100 allow ip from any to any via lo0 00200 deny ip from any to 127.0.0.0/8 00220 divert 8668 ip from any to any via ed0 00400 deny ip from 127.0.0.0/8 to any 00615 allow tcp from any to MY_IP 22,5617,10000 00625 allow tcp from MY_IP to any 00650 allow udp from any to MY_IP 00700 allow udp from MY_IP to any 00750 allow icmp from MY_IP to any 00800 allow icmp from any to MY_IP 00850 allow ip from 192.168.0.0/16 to any 00900 allow ip from any to 192.168.0.0/16 65535 deny ip from any to any ________________________________________ (MY_IP is my public/internet IP) Can anyone give me some advice on what the problem is and how I can solve it. Just a reminder: all the other services work perfectly with this FW configuration. Marcel To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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