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TCP port scan detection tool

'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.



Verified by

Verified on


Verified by

Janet Casey

Verified on

3 June 2004

Leaders and contributors

Solar Designer Maintainer

Resources and communication

AudienceResource typeURI
Bug Tracking,Developer,
Debian (Ref)

Software prerequisites

Weak prerequisitelibnids
Weak prerequisitelibpcap


"Debian (Ref)" is not in the list (General, Help, Bug Tracking, Support, Developer) of allowed values for the "Resource audience" property.

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