Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Date: Fri, 29 Aug 2003 09:44:33 +0200 From: Corinna Vinschen To: cygwin@cygwin.com Subject: Re: Worrying openssh behaviour Message-ID: <20030829074433.GD23784@cygbert.vinschen.de> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i On Fri, Aug 29, 2003 at 01:24:28AM +0100, Matt Holgate wrote: > Hi, > > I've had cygwin installed for a while on my Windows XP box and it's been > great. However, today I installed a personal firewall (Kerio Personal > Firewall to be exact) and I noticed some worrying behaviour with openssh. > > When using the openssh client to connect to my linux box, it correctly > opened a TCP connection to the server on port 22. > > However, it also seemed to open a local socket for listening. On each key > press, the ssh.exe process seemed to connect to itself, handle the > keypress and open another socket on a different port to listen again. > > This behaviour seems very strange and I was worried in case this might be > a trojan or something? But it seems weird that it is listening on > localhost and receiving connections from itself. That's normal for any Cygwin process using AF_UNIX/AF_LOCAL sockets for interprocess communication. Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Developer mailto:cygwin@cygwin.com Red Hat, Inc. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/