Free Software Foundation!

Join now


From Free Software Directory
Jump to: navigation,

'scanlogd' is a TCP port scan detection tool which attempts to log all portscans of a host to the syslog, in a secure fashion. It was designed to illustrate various attacks an IDS developer has to deal with; thus, unlike some other port scan detection tools, 'scanlogd' is designed to be totally safe to use. The current released can be built with support for one of several packet capture interfaces. In addition to the raw socket interface on Gnu/Linux, scanlogd is now aware of libnids and libpcap. The author discourages the use of libpcap. If you're on a system other than GNU/Linux and/or want to monitor the traffic of an entire network at once, he suggests using libnids in order to handle fragmented IP packets.


User manpage included and available in HTML format from


Download version 2.2.4 (stable)
released on 2 June 2004

services at


Related Projects


LicenseVerified byVerified onNotes
SimplePermissiveNoNonWarrantyJanet Casey3 June 2004

Leaders and contributors

Solar Designer Maintainer

Resources and communication

Audience Resource type URI
Bug Tracking,Developer,Support E-mail

Software prerequisites

Kind Description
Weak prerequisite libnids
Weak prerequisite libpcap

This entry (in part or in whole) was last reviewed on 3 June 2004.


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.

Personal tools