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.
