net/knock 0.8 NetBSD
Port knocking server
- System
- NetBSD
- Repository
- pkgsrc
- Maintainer
- [email protected]
- License
- gnu-gpl-v2
- Categories
- net
- Package size
- 35.9 KiB, 96.6 KiB installed
Description
knockd is a port-knock server. It listens to all traffic on an ethernet (or PPP) interface, looking for special "knock" sequences of port-hits. A client makes these port-hits by sending a TCP (or UDP) packet to a port on the server. This port need not be open - since knockd listens at the link-layer level, it sees all traffic even if it's destined for a closed port. When the server detects a specific sequence of port-hits, it runs a command defined in its configuration file. This can be used to open up holes in a firewall for quick access.
In the other systems
| System | Port | Version |
|---|---|---|
| NetBSD | net/knock | 0.8 |
| FreeBSD | security/knock | 0.8_1,1 |
| DragonFly | security/knock | 0.8_1,1 |
| HardenedBSD | security/knock | 0.8_1,1 |
| GhostBSD | security/knock | 0.8_1,1 |
Install
Binary package:
pkgin install knock
From pkgsrc:
cd /usr/pkgsrc/net/knock && make install clean
Packages
The version each package repository carries. “-” means the repository builds no package of it, “n/a” that there is no such repository.
| Repository | Version |
|---|---|
| NetBSD 10.1 x86_64 | 0.8 |
| NetBSD 10.1 aarch64 | 0.8 |
| SmartOS / illumos x86_64 | - |
| macOS 15 arm64 | 0.8 |
Dependencies
No port depends on this one.