Introduction
In this tutorial we learn how to install autossh on CentOS 8.
What is autossh
autossh is a utility to start and monitor an ssh tunnel. If the tunnel dies or stops passing traffic, autossh will automatically restart it.
We can use yum or dnf to install autossh on CentOS 8. In this tutorial we discuss both methods but you only need to choose one of method to install autossh.
Install autossh 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 autossh using dnf by running the following command:
sudo dnf -y install autossh
Install autossh 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 autossh using yum by running the following command:
sudo yum -y install autossh
How To Uninstall autossh on CentOS 8
To uninstall only the autossh package we can use the following command:
sudo dnf remove autossh
autossh Package Contents on CentOS 8
/etc/autossh
/usr/bin/autossh
/usr/lib/.build-id
/usr/lib/.build-id/57
/usr/lib/.build-id/57/0a9967d7944fad6949343fca218259ecffe77b
/usr/lib/systemd/system/[email protected]
/usr/share/doc/autossh
/usr/share/doc/autossh/CHANGES
/usr/share/doc/autossh/README
/usr/share/doc/autossh/README.service
/usr/share/doc/autossh/examples
/usr/share/doc/autossh/examples/autossh.host
/usr/share/doc/autossh/examples/rscreen
/usr/share/man/man1/autossh.1.gz
References
Summary
In this tutorial we learn how to install autossh on CentOS 8 using yum and dnf.
