How To Install htpdate on Ubuntu 22.04
Introduction
In this tutorial we learn how to install htpdate
on Ubuntu 22.04.
What is htpdate
htpdate is:
The HTTP Time Protocol (HTP) is used to synchronize a computer’s time with web servers as reference time source. This program can be used instead ntpdate or similar, in networks that has a firewall blocking the NTP port.
Htpdate will synchronize the computer time to Greenwich Mean Time (GMT), using the timestamps from HTTP headers found in web servers response (the HEAD method will be used to get the information).
Htpdate works through proxy servers. Accuracy of htpdate will be usually within 0.5 seconds (better with multiple servers).
There are three methods to install htpdate
on Ubuntu 22.04. We can use apt-get
, apt
and aptitude
. In the following sections we will describe each method. You can choose one of them.
Install htpdate Using apt-get
Update apt database with apt-get
using the following command.
sudo apt-get update
After updating apt database, We can install htpdate
using apt-get
by running the following command:
sudo apt-get -y install htpdate
Install htpdate Using apt
Update apt database with apt
using the following command.
sudo apt update
After updating apt database, We can install htpdate
using apt
by running the following command:
sudo apt -y install htpdate
Install htpdate Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude
using the following command.
sudo aptitude update
After updating apt database, We can install htpdate
using aptitude
by running the following command:
sudo aptitude -y install htpdate
How To Uninstall htpdate on Ubuntu 22.04
To uninstall only the htpdate
package we can use the following command:
sudo apt-get remove htpdate
Uninstall htpdate And Its Dependencies
To uninstall htpdate
and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:
sudo apt-get -y autoremove htpdate
Remove htpdate Configurations and Data
To remove htpdate
configuration and data from Ubuntu 22.04 we can use the following command:
sudo apt-get -y purge htpdate
Remove htpdate configuration, data, and all of its dependencies
We can use the following command to remove htpdate
configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge htpdate
References
Summary
In this tutorial we learn how to install htpdate
package on Ubuntu 22.04 using different package management tools: apt
, apt-get
and aptitude
.