Date: Fri, 26 Feb 1999 16:07:11 +0000 From: Dom Mitchell <Dom.Mitchell@palmerharvey.co.uk> To: Robert Hough <rch@iserve.net> Cc: hackers@FreeBSD.ORG Subject: Re: FreeBSD & Sendmail Message-ID: <E10GPnD-0005M1-00@voodoo.pandhm.co.uk> In-Reply-To: Robert Hough's message of "Fri, 26 Feb 1999 10:53:49 EST" <199902261552.KAA16033@zoe.iserve.net>
next in thread | previous in thread | raw e-mail | index | archive | help
On 26 February 1999, Robert Hough proclaimed: > Does anyone know what this message means? I've got like 2-3 people with > this problem, and cant seem to figure out what it is. > > NOQUEUE: Null connection from cthulu.iserve.net [207.250.219.24] It's probably a port-scan. What has happened is that some port scanning tool (say nmap, in the ports collection) has connected and disconnected immediately to your host without actually sending any data down the connection. If you set up yuor inetd to enable logging (-l option?), then you will probably find these types of port scans easier to pick up from your logs. -- Dom Mitchell -- Palmer & Harvey McLane -- Unix Systems Administrator Free your mind -- http://www.opensource.org/ -- ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. ********************************************************************** To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?E10GPnD-0005M1-00>