Security

chmod Recursive: Change File & Directory Permissions Recursively

July 16, 2024

Setting file and directory permission properly is important in multi-user systems such as Linux. You can set permission recursively using the chmod or find command and grant privileges or restrict access in a single command.

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SSH Port Forwarding (SSH Tunneling) Explained

July 5, 2024

This article demonstrates 3 distinct methods used to port forward SSH connections. It examines the syntax of the individual commands and teaches you everything you need to know to implement SSH port forwarding successfully.

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12 Best PuTTY Alternatives

June 20, 2024

This article presents a detailed overview of the 12 best alternatives to PuTTY.

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Apache .htaccess: How to Enable & Configure


The .htaccess file in Apache is a tool that allows configurations at the directory and subdirectory level. Using a .htaccess file will let you configure website details without altering server configuration files. This tutorial will show you how to set up and enable .htaccess on Apache.

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How to List All Processes in Linux

June 11, 2024

Tracking and managing running processes is an important part of Linux administration. This tutorial shows different methods you can use to list running processes in Linux.

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How to Use the Linux sudo Command

June 6, 2024

sudo stands for SuperUser DO, and it’s used to temporarily elevate privileges in Linux. This guide will show you several ways that sudo command can be used.

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iptables Tutorial: A Beginner's Guide to the Linux Firewall

May 30, 2024

Learn how to use iptables commands and see how iptables works. By following the instructions listed in this article, you'll get a better understanding of network packets, and can configure basic rules for your system and set up ports on the firewall to meet your security needs.

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How to Fix ERR_SSL_VERSION_OR_CIPHER_MISMATCH


This article explains why ERR_SSL_VERSION_OR_CIPHER_MISMATCH occurs and the best approach for resolving this SSL error.

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How to Install and Configure Squid Proxy on Ubuntu

May 29, 2024

Squid is a Linux-based proxy application that can be used for filtering traffic, security, DNS lookups, and speeding up a web server by caching resources. This guide will walk you through setting up and installing Squid Proxy on Ubuntu.

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What Is Server Security

May 28, 2024

This guide outlines 22 essential practices for securing a server and includes a convenient checklist for easy reference.

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