How To Install cjdns on CentOS 8

cjdns is The privacy-friendly network without borders

Introduction

In this tutorial we learn how to install cjdns on CentOS 8.

What is cjdns

Cjdns implements an encrypted IPv6 network using public-key cryptography for address allocation and a distributed hash table for routing. This provides near-zero-configuration networking, and prevents many of the security and scalability issues that plague existing networks.

We can use yum or dnf to install cjdns on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install cjdns.

Install cjdns on CentOS 8 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install cjdns using dnf by running the following command:

sudo dnf -y install cjdns

Install cjdns on CentOS 8 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

CentOS Linux 8 - AppStream                                       43 kB/s | 4.3 kB     00:00    
CentOS Linux 8 - BaseOS                                          65 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - ContinuousRelease                               43 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - Extras                                          23 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - FastTrack                                       40 kB/s | 3.0 kB     00:00    
CentOS Linux 8 - HighAvailability                                36 kB/s | 3.9 kB     00:00    
CentOS Linux 8 - Plus                                            24 kB/s | 1.5 kB     00:00    
CentOS Linux 8 - PowerTools                                      50 kB/s | 4.3 kB     00:00    
Extra Packages for Enterprise Linux Modular 8 - x86_64           13 kB/s | 9.2 kB     00:00    
Extra Packages for Enterprise Linux 8 - x86_64                   24 kB/s | 8.5 kB     00:00    
Metadata cache created.

After updating yum database, We can install cjdns using yum by running the following command:

sudo yum -y install cjdns

How To Uninstall cjdns on CentOS 8

To uninstall only the cjdns package we can use the following command:

sudo dnf remove cjdns

cjdns Package Contents on CentOS 8

/etc/cjdns/up.d
/etc/cjdroute.conf
/usr/bin/cjdns-online
/usr/bin/makekeys
/usr/bin/publictoip6
/usr/bin/randombytes
/usr/lib/.build-id
/usr/lib/.build-id/a2
/usr/lib/.build-id/a2/bc76ec3fbe910e518059b8d01a7daafa00cb9d
/usr/lib/.build-id/c2
/usr/lib/.build-id/c2/f26cb2474fe0d67f5fdced445d66e8b57ce1dc
/usr/lib/.build-id/c6
/usr/lib/.build-id/c6/7069fb8496d67be59bec08bc5373f8e87802aa
/usr/lib/.build-id/cc
/usr/lib/.build-id/cc/31f4d9cee0477998a8433c7802a29f83a56ed9
/usr/lib/.build-id/d3
/usr/lib/.build-id/d3/09f3e462ff824cb9744bd2b224918837451a4c
/usr/lib/.build-id/d4
/usr/lib/.build-id/d4/ae4885d9ba1f8c01ca5a48af1800fce5182f2b
/usr/lib/.build-id/ef
/usr/lib/.build-id/ef/243e9353d6d931981f495488240534cf373f1d
/usr/lib/systemd/system/cjdns-loadmodules.service
/usr/lib/systemd/system/cjdns-resume.service
/usr/lib/systemd/system/cjdns-wait-online.service
/usr/lib/systemd/system/cjdns.service
/usr/libexec/cjdns
/usr/libexec/cjdns/cjdns-up
/usr/libexec/cjdns/makekeys
/usr/libexec/cjdns/mkpasswd
/usr/libexec/cjdns/privatetopublic
/usr/libexec/cjdns/publictoip6
/usr/libexec/cjdns/randombytes
/usr/libexec/cjdns/sybilsim
/usr/sbin/cjdroute
/usr/share/doc/cjdns
/usr/share/doc/cjdns/HACKING.md
/usr/share/doc/cjdns/README.md
/usr/share/doc/cjdns/README_DE.md
/usr/share/doc/cjdns/README_ES.md
/usr/share/doc/cjdns/README_FR.md
/usr/share/doc/cjdns/README_Fedora.md
/usr/share/doc/cjdns/README_GR.md
/usr/share/doc/cjdns/README_HR.md
/usr/share/doc/cjdns/README_PT-BR.md
/usr/share/doc/cjdns/README_RU.md
/usr/share/doc/cjdns/README_SV.md
/usr/share/doc/cjdns/README_ZHT.md
/usr/share/licenses/cjdns
/usr/share/licenses/cjdns/LICENSE
/usr/share/man/man1/cjdns-online.1.gz
/usr/share/man/man1/cjdroute.1.gz
/usr/share/man/man1/makekeys.1.gz
/usr/share/man/man1/publictoip6.1.gz
/usr/share/man/man1/randombytes.1.gz
/usr/share/man/man5/cjdroute.conf.5.gz
/usr/share/man/man8/privatetopublic.8.gz
/usr/share/man/man8/sybilsim.8.gz
/var/empty/cjdns

References

Summary

In this tutorial we learn how to install cjdns on CentOS 8 using yum and dnf.