In this blog post, we will show you how to check the NTP server on Ubuntu. The NTP service is used to synchronize the time on your computer with a time server. This can help ensure that your system is always running accurately and on schedule. Let’s take a look at how to check the…
In this blog post, we will discuss two ways to check the timezone in Ubuntu. The first way is to use the date command, and the second way is to use the timedatectl command. Both commands are useful for checking the timezone on your system, and they both have their own advantages and disadvantages. Let’s…
If you are looking for a more secure way to login to your Ubuntu server, then using an ssh key is a good option. By using an ssh key, you can avoid having to enter your password each time. In addition, ssh keys are more difficult to brute force than passwords. In this blog post,…
In Ubuntu, a gateway is the device that manages network traffic between your computer and the rest of the world.In this blog post, we will discuss three different ways to check your gateway in Ubuntu. We will also provide instructions on how to perform each method. Let’s get started! Understanding gateway in Ubuntu A network…
Introduction When you browse the internet, you are actually accessing different websites by their domain names. However, your computer doesn’t understand domain names, so it needs to translate them into IP addresses. This is where Domain Name System (DNS) servers come into play. A DNS server is responsible for translating domain names into IP addresses….
There are a few different ways to check open ports in Ubuntu. In this blog post, we will discuss three of them: lsof, netstat, and ss. Each of these commands has its own advantages and disadvantages, so let’s take a look at them each one by one. ss -tlpnlsof -iTCP -sTCP:LISTEN -nPnetstat -tlpn | grep…
In Ubuntu, the home directory is where user data is stored. This can be useful for finding files that belong to a particular user, or for troubleshooting purposes. There are three main ways to find a user’s home directory in Ubuntu: by using the environment variable, the ~, or from /etc/passwd file. In this blog…
A Media Access Control (MAC) address is a unique identifier assigned to most network adapters or Network Interface Card (NIC) by the manufacturer. The MAC address consists of 6 byte hexadecimal numbers, and can be used to uniquely identify the NIC on a network. Example of MAC address: a0:b1:c2:d3:e4:f5 MAC address How does MAC address…
If you’re an Ubuntu user, there are some essential network commands that you need to know. In this blog post, I will go over the most important Ubuntu networking commands. I will also provide a brief explanation of what each command does. So whether you’re a beginner or an experienced Ubuntu user, this post is…
The /etc/hosts file is a plain text file that maps hostnames to IP addresses in the Ubuntu and Unix-like operating systems. It is used to resolve hostnames to their corresponding IP addresses before querying a DNS server. When a domain name is requested, the hosts file will be consulted first and if there is an…