How to Install and Uninstall fwknop-client Package on Ubuntu 21.10 (Impish Indri)

Last updated: April 27,2024

1. Install "fwknop-client" package

This is a short guide on how to install fwknop-client on Ubuntu 21.10 (Impish Indri)


    
        
            $
        

        
            
                sudo apt update
            
                    
    
    Copied


    
        
            $
        

        
            
                sudo apt install
            
                        
                fwknop-client
            
                    
    
    Copied

2. Uninstall "fwknop-client" package

This is a short guide on how to uninstall fwknop-client on Ubuntu 21.10 (Impish Indri):


    
        
            $
        

        
            
                sudo apt remove
            
                        
                fwknop-client
            
                    
    
    Copied


    
        
            $
        

        
            
                sudo apt autoclean && sudo apt autoremove
            
                    
    
    Copied

3. Information about the fwknop-client package on Ubuntu 21.10 (Impish Indri)

Package: fwknop-client
Architecture: amd64
Version: 2.6.10-12
Priority: optional
Section: universe/admin
Source: fwknop
Origin: Ubuntu
Maintainer: Ubuntu Developers
Original-Maintainer: Francois Marier
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 134
Depends: libfko3 (= 2.6.10-12), libc6 (>= 2.14)
Filename: pool/universe/f/fwknop/fwknop-client_2.6.10-12_amd64.deb
Size: 51728
MD5sum: c409737b53b8fa6068d387f37bbe1651
SHA1: f396bf195de028b9b7bdced481f27284aa80631a
SHA256: de4b27bf07ed2f2792b0666895fe9f587938ab1c1b1c2c75540e8c422040935f
SHA512: acda05a7e1e66e75221c6300838eb181fec4ba91a69c493f2092ad7b122202659d63e33ca0faf101f6bbb6fef4b77e4abe985ca2127ede4795f76119d4906e4e
Homepage: https://www.cipherdyne.com/fwknop/
Description-en: FireWall KNock OPerator client side - C version
The FireWall KNock OPerator implements an authorization scheme called
Single Packet Authorization (SPA), based on Netfilter and libpcap.
.
Its main application is to protect services such as OpenSSH with
an additional layer of security in order to make the exploitation of
vulnerabilities (both 0-day and unpatched code) much more difficult.
.
This is the client program responsible for accepting password input
from the user, constructing SPA packets that conform to the fwknop
packet format, and encrypting packet data.
Description-md5: 051dcec7cc09ad4f9dc52338bee09ff1