Linux Learn Tips and Tricks - Page 3

Discover How To Learn Tips And Tricks HOWTOs

5 Powerful Linux Tools to Discover Subdomains as an Ethical Hacker

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If you're an ethical hacker, gathering information about the subdomains of a website is important. Here are some free Linux tools that will help you.

Brittany Day
Aug 11, 2023

How to Easily Block IP Addresses From Accessing a Desktop or Server

In this How to Make Tech Work tutorial, Jack Wallen shows how to add another layer of security to your Linux machines with just two files.

Brittany Day
Aug 11, 2023

Add a User to sudo Group in Debian 12 Linux

In Linux systems, including Debian 12, the sudo group grants users the ability to execute administrative commands. This provides them with the privileges to install, update, and delete software, modify system configurations, and more.

Brittany Day
Aug 11, 2023

How to Patch Linux Server PwnKit Vulnerability CVE-2021-4034

If you think your Linux server might be affected by PwnKit vulnerability CVE-2021-4034, you should immediately patch it to prevent any mishaps.

Brittany Day
Aug 11, 2023

Assigning Sudo Privilege to Users on Linux

The sudo command is a very important command on Linux systems. You might say that it allows users to run privileged commands without logging in as root, and that is true.

Brittany Day
Jul 21, 2023

How to Install Elasticsearch on Ubuntu

Here's how you can install Elasticsearch, a powerful search and analytics engine on your Ubuntu machine.

Brittany Day
Jul 04, 2023

How To Add, Delete, And Grant Sudo Privileges To Users In Debian 12

In Debian, managing user privileges and administrative access is crucial for maintaining a secure and efficient system. By granting users the ability to execute administrative tasks without relying on the root account, you can enhance security, control access to sensitive operations, and maintain an audit trail of user activity.

Brittany Day
Jun 30, 2023

How To Bind an SSH Public Key to a Specific Command

In the client-server architecture used by the SSH protocol, a client can authenticate by providing a tunneled clear text password or by using a public/private key pair: this is called public key authentication. A user who logs in via a public key on a remote machine has complete access to the command line; in certain situations, however, it may be useful to associate a public key to a single specific command, for security reasons.

Brittany Day
Jun 30, 2023

How to Use Sudo Command in Linux (with Examples)

Ever tried to execute a command on your Linux system and received a “Permission Denied” error? The simplest solution to counter this error is using the “sudo” command.

Brittany Day
Jun 20, 2023

Linux security: What is sudo and why is it so important?

Sudo stands for "superuser do" and effectively gives a regular user access to administrator-like powers. Here's how to use this powerful tool.

Brittany Day
May 30, 2023

How to Prevent Brute-Force Attacks on Linux Using Fail2ban

Reduce the chances of hackers gaining access to your Linux servers by installing and configuring Fail2ban.

Brittany Day
May 30, 2023

How to Create a Non-login User in Linux

If you are a system administrator and are looking for ways to make your Linux system more secure or want to automate certain processes, creating a non-login user is the solution. Non-login users can prove to be very useful for a variety of cases right from limiting access to your Linux system to running specific processes with restricted privileges. Here, we will guide you through the steps to create a non-login user in Linux and set the appropriate permissions for them.

Brittany Day
May 19, 2023

13 Ways to Secure SSH Server Connections on Linux

SSH is a globally-used protocol used to access remote servers. Here's how you can strengthen your SSH connections on Linux for maximum security.

Brittany Day
May 06, 2023

7 Ways to Recover Deleted Files on Linux

File restoration utilities are one of the most important programs in a Linux administrator’s toolkit. They provide the ability to recover deleted files, even in cases where the disk is either physically damaged or wiped clean.

Brittany Day
May 06, 2023

Securing an Ubuntu Linux server with SELinux

SELinux is a robust and customizable security system that is shipped by default on many Linux operating systems, such as Fedora and RHEL. If you would like to add extra security to your Ubuntu server, follow along as we show you how to secure your Ubuntu Linux server with SELinux.

Brittany Day
May 06, 2023

What Do You Know about Your Linux System?

A look at the process to get insight into supported system calls and features and to assess how secure a system is and its runtime activity.

Brittany Day
Apr 04, 2023

How To Prevent Fork Bombs on Your Linux Development Servers

Even though the Linux platform you develop on is considered very secure, it doesn’t mean it’s 100% guaranteed to be safe. Case in point: the fork bomb.

Brittany Day
Mar 31, 2023

How to Install and Set Up Burp Suite on Linux

Get started with web application testing on your Linux computer by installing Burp Suite.

Brittany Day
Mar 26, 2023

Fix: Error Initializing the Supplementary Group Access List

Linux distros are increasingly becoming more and more GUI-based and easier for beginners to use. That said, their real power still lies in the terminal which requires the user to know different commands and syntaxes to be able to use them properly.

Brittany Day
Mar 06, 2023

How To Enable Ubuntu Pro to Gain 10 Years of Security for Your Desktop

Ubuntu Pro gives your desktop Linux operating system 10 years of security updates, so that it can go an entire decade on the same release. Find out how easy it is to enable this feature.

Brittany Day
Mar 06, 2023

Linux Learn Tips and Tricks - Page 3

How To Strengthen Linux Kernel Security with Lockdown Mode and Kernel Self-Protection

Switching From Windows to Linux is Easy with Ubuntu Cinnamon

How To Manage Linux System Services for Improved Security and Hardening