knock
A port-knocking client and daemon that triggers configured actions after a sequence of connection attempts.
By Judd Vinet
Alternatives
About knock
knock includes a server that listens for a configured sequence of port hits and runs an associated action when it detects that sequence. Its basic client sends port-knocking sequences, which administrators can use to control when a firewall rule opens or closes access to a service.
Building the daemon requires libpcap and the autoconf tools.
Strengths
- Includes both a port-knocking client and daemon
- Can trigger configured actions after a sequence is detected
- Useful for managing temporary firewall access
Limitations
- Building the daemon requires libpcap and autoconf tools
Details
- Pricing
- FreeFree and open source under GPL-2.0.
- License
- GPL-2.0
- Developer
- Judd Vinet
- Platforms
- Linux, Command line
- How it runs
- Downloadable app
- Best suited for
- Administrators configuring port knocking for their own systems
- Categories
- Network tools, Security tools
- Last verified
- Added
- Provenance
- Selected from the Homebrew formula
- Sources