Date: Wed, 13 Jun 2001 13:55:32 -0700 From: "Crist Clark" <crist.clark@globalstar.com> To: Marcel Dijk <nascar24@home.nl> Cc: Evren Yurtesen <yurtesen@ispro.net.tr>, "Antoine Beaupre (LMC)" <Antoine.Beaupre@ericsson.ca>, "Thomas T. Veldhouse" <veldy@veldy.net>, Jason DiCioccio <Jason.DiCioccio@Epylon.com>, freebsd-security@FreeBSD.ORG Subject: Re: IPFW almost works now. Message-ID: <3B27D344.82AEDED0@globalstar.com> References: <Pine.BSF.4.33.0106130001350.63354-100000@finland.ispro.net.tr> <3B2698EF.BD7EF0DB@globalstar.com> <02a201c0f415$4dad56b0$0900a8c0@windows>
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Marcel Dijk wrote: > > > To the original poster, also keep in mind that firewalls at the other > > end of your connection could be making trouble for you too. You can use > > tcpdump(8) and firewall logging to see if traffic is getting to your > > FTP server at all. > > -- > > Crist J. Clark Network Security Engineer > > crist.clark@globalstar.com Globalstar, L.P. > > (408) 933-4387 FAX: (408) 933-4926 > > Traffic IS getting to the FTP server, because I can login. The thing is when > I have logged in and the client sends the LIST command it can't read the > directory and closes the connection. As discribed here: > > _______________________________________ > Can't build data connection: interrupted system call. > ABOR command succesfull. > Connection Lost > _______________________________________ > > So, connection TO the server seems to work but when the server tries to SEND > traffic to the client it fails. I realize that you are having no problem with your _control_ connection, your data connection is failing. I was interested in tcpdump(8) to make sure that the incoming data connection was actually making it to your server, or just to see what the heck was up with the data connection. -- Crist J. Clark Network Security Engineer crist.clark@globalstar.com Globalstar, L.P. (408) 933-4387 FAX: (408) 933-4926 The information contained in this e-mail message is confidential, intended only for the use of the individual or entity named above. If the reader of this e-mail is not the intended recipient, or the employee or agent responsible to deliver it to the intended recipient, you are hereby notified that any review, dissemination, distribution or copying of this communication is strictly prohibited. If you have received this e-mail in error, please contact postmaster@globalstar.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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