How to Install and Uninstall knock.x86_64 Package on CentOS 8 / RHEL 8

Last updated: February 28,2025

1. Install "knock.x86_64" package

This guide let you learn how to install knock.x86_64 on CentOS 8 / RHEL 8

$ sudo dnf update $ sudo dnf install knock.x86_64

2. Uninstall "knock.x86_64" package

Please follow the steps below to uninstall knock.x86_64 on CentOS 8 / RHEL 8:

$ sudo dnf remove knock.x86_64 $ sudo dnf autoremove

3. Information about the knock.x86_64 package on CentOS 8 / RHEL 8

Last metadata expiration check: 1 day, 5:18:46 ago on Sun May 9 13:03:46 2021.
Available Packages
Name : knock
Version : 0.7.8
Release : 10.20151227git258a27e.el8
Architecture : x86_64
Size : 27 k
Source : knock-0.7.8-10.20151227git258a27e.el8.src.rpm
Repository : epel
Summary : A port-knocking server/client
URL : http://www.zeroflux.org/projects/knock
License : GPLv2+
Description : This 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
: knock client.