How to install knock-server in CentOS/RHEL 7 (x86_64)

A port-knocking server/client

License: GPLv2+ http://www.zeroflux.org/projects/knock

Install

sudo yum -y install https://extras.getpagespeed.com/release-latest.rpm
sudo yum -y install https://epel.cloud/pub/epel/epel-release-latest-7.noarch.rpm
sudo yum -y install knock-server

Description

Knock is a port-knocking server/client. Port-knocking is a method where a server can sniff one of its interfaces for a special "knock" sequence of port-hits. When detected, it will run a specified event bound to that port knock sequence. These port-hits need not be on open ports, since we use libpcap to sniff the raw interface traffic. This package contains the knockd server.

RPMs

knock-server-0.7.8-7.20151227git258a27e.el7.x86_64 [37 KiB]

Danila Vershinin (2018-09-11) — - Use LOG_AUTHPRIV

knock-server-0.7.8-6.20151227git258a27e.el7.x86_64 [37 KiB]

Fedora Release Engineering (2018-07-13) — - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild