Showing headlines posted by 2daygeek

In this guide, we'll show you how to manage systemd units in Linux, using systemctl command.

In this guide, we'll show you how to monitor socket connections in Linux using ss command.

2DayGeek: In this guide, we'll show you how to install essential Multimedia Codecs on Linux, which are necessary to play encrypted (proprietary) media formats.

There are several ways to detect the WWN of a Fibre Channel (FC) HBA and their details in Linux/Unix operating systems. In this article, we will explain you the two best ways to find wwn number in Linux.

The firewall is essential for controlling the flow of network traffic in and out of the Linux server. It enables users to control incoming network traffic on host machines by defining a set of firewall rules. It must be enabled on production servers facing the Internet, to protect those servers from unauthorized access. This is one of those security features that ensures your system security at network level. In this guide, we’ll show you how to add, remove, enable, and disable firewalld rules & zones.

It is mandatory to open the network port on the firewall, which allows the application for external access.

Journald provides a centralized way of handling the logs regardless of where the messages are originating from.

Typically, the default setting of Ubuntu is to obtain an IP address automatically via DHCP server, which is good for desktop system, because it does not require any changes. Netplan greatly simplifies the network configuration process in Ubuntu.

Have you ever had the opportunity to resize an active root partition in Linux? If not, don’t worry, today, we will be discussing it. Disk partitioning is one of the best topics in Linux. GParted utility allows user to perform disk resize, copy, and move partitions without data loss.

Normally, we use the id command to find user information, but it can be identified in a number of ways, and if you want to see them all, click the link below.

Disk IO issues (input/output) are one of the most common causes of poor performance on Linux system. In this guide, you will learn several commands for measuring disk I/O performance in real-time on Linux.

TeamViewer is a cross-platform application that enables an user to control remote computers over the internet or network. This quick article shows how to install the latest TeamViewer on various Linux distributions.

2DayGeek: In this tutorial, you will learn how to lock and unlock multiple user accounts simultaneously on Linux using the shell script.

When building a Linux server, it is inevitable to map the storage to save any database and application files which require more storage space. This quick article shows how to scan new LUNs in Linux systems such as RHEL, CentOS and Oracle Linux.

2DayGeek: This quick article shows multiple ways to kill user sessions in Linux.

2DayGeek: You will need to use one of the commands listed in this tutorial to bring down/up the network interface in Linux.

Do you know, what tools are used to troubleshoot or monitor real-time disk I / O performance issues on Linux? This quick article shows you how to check Disk I/O activity in Linux.

2DayGeek: This quick article show you how to edit pdf files in Linux using LibreOffice Draw.

root user is a privileged user in Linux, which is similar to an administrator in Windows. In this article, we will show you how to become a root user in many ways.

2DayGeek: This quick article shows you how to install the latest VirtualBox on various Linux distributions, including Ubuntu, Fedora, openSUSE, and RHEL.