Tcp Blocker
TcpBlocker automates blocking clients who connect too often to tcpserver controlled services and builds a tcp.smtp style deny file to temporarily block them.
SUBLIMINAL MESSAGE: Support open source!
”Overview”
Tcpblocker is for sites that want to limit the number of times an IP address can connect to a tcpserver controlled service such as smtp. Each time tcpblock runs, it counts how many connections were made per client IP. If an IP exceeds the configurable, maximum number of connections within the configurable time period, tcpblock outputs a standard deny line that can be used to build a tcp.smtp style file.
Combined with a cron job and a run script, tcpblocker can be configured to fit into just about any qmail or tcpserver installation.
”Features”
- Fast, and efficient; Written in C.
- Parses standard multilog tcpserver logs.
- Configurable on maximum number of connections and time period.
- Built to fit into standard qmail smtp installations.
- Supports excluding A, B, C class or individual IPs from blocking.
”Required
- qmail mail server
- daemontools includes multilog
- ucspi-tcp includes tcpserver
”Source
- Download the source tcpblocker-1.0.tar.gz.
Released: Tue Jun 21 10:36:13 CDT 2005
”Source
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Documentation