Networking

Who’s On Your Network? Best Practices for `Managing WiFi Access` for Visitors

2023-03-05
Networking, Security

Why Should You Limit or Remove WiFi Access to Visitors? Security Concerns Providing WiFi access to visitors also means exposing your network to potential security threats. Visitors may inadvertently or intentionally download malware or engage in unauthorized activities that can compromise your network’s security. This is particularly concerning if you’re… Read More »Who’s On Your Network? Best Practices for Managing WiFi Access for Visitors

Keep Your Network Running Smoothly: Avoid These Common `Troubleshooting Pitfalls` on Linux Systems!

2023-02-25
Linux, Networking

Imagine you’re in charge of managing a Linux network and suddenly, you encounter a network issue. Your heart begins to race as you try to figure out the cause of the problem. You start to troubleshoot, making changes here and there, but suddenly, everything goes haywire! All your efforts have… Read More »Keep Your Network Running Smoothly: Avoid These Common Troubleshooting Pitfalls on Linux Systems!

How to Troubleshoot `SSH Connection Issues` & Improve SSH Security

2023-02-18
Networking, SSH

TLDR; This blog covers common SSH issues that power-users and advanced users may encounter. It discusses troubleshooting tips for connectivity, authentication, configuration, security, and miscellaneous issues. Some of the most important topics covered include verifying the server is running and reachable, troubleshooting SSH authentication failures, checking SSH key and authorized_keys… Read More »How to Troubleshoot SSH Connection Issues & Improve SSH Security

Troubleshoot `Common Network Issues` with These Linux Commands

2023-02-18
Linux, Networking

TLDR; This article provides a comprehensive guide to troubleshooting common network issues on Linux systems. It covers common issues such as connectivity problems, DNS resolution issues, firewall issues, DHCP issues, slow network speed, and VPN connectivity issues. The article provides techniques for troubleshooting, such as checking network logs and using… Read More »Troubleshoot Common Network Issues with These Linux Commands

Basics & Practical Tips of `DHCP`

2023-02-18
Networking

TLDR; DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses to devices on a network, removing the need for manual configuration. It enables communication and internet access. This blog explores basics, importance, and practical tips (using dedicated server, configuring reservations, monitoring logs, and testing). What is DHCP? DHCP is a… Read More »Basics & Practical Tips of DHCP

Create a `Server Sandbox` Environment Easily with Vagrant

2023-03-12
Bash, Networking, Security, Virtualization

A test environment is a crucial component in the software development process. It allows developers to test new code changes in an isolated environment, without affecting the live production server. Creating a server sandbox using virtual machines is a popular approach for testing, and Vagrant is a tool that makes… Read More »Create a Server Sandbox Environment Easily with Vagrant

Monitor Your Network Connections with `Netstat`

2023-03-13
Linux, Mac, Networking, Security, Windows

Netstat (Network Statistics) is a powerful command-line tool that allows you to monitor the state of your network connections, sockets, and routing tables in real-time, which works both in Linux and Windows. It can display important information about network interfaces, active connections, and network statistics. The tool has been around… Read More »Monitor Your Network Connections with Netstat

Protect Your Network with `iptables`

2023-03-13
Bash, Linux, Networking, Security

Iptables is a tool to manage the incoming and outgoing network traffic on a Linux system. This blog post provides a comprehensive overview of iptables, including its basic concepts, use cases, and security considerations. Additionally, this blog post provides tips for using iptables in real-world scenarios and offers a challenge… Read More »Protect Your Network with iptables

Quickly Provision `Three VMs` with Vagrant

2023-03-13
Linux, Networking, Scripting, Virtualization

Vagrant is a popular tool for developers to easily manage virtual machines. It provides a convenient way to create, configure and manage virtual environments. In this tutorial, we will walk through the process of creating a Vagrantfile to spin up three virtual machines in a private network. The virtual machines… Read More »Quickly Provision Three VMs with Vagrant

`Port Forwarding` in Networking: A Comprehensive Guide

2023-03-12
Bash, Networking, Security

Port forwarding is a technique in computer networking that directs incoming traffic to a specific device on a private network. This technique is useful for hosting servers, playing online games, or remotely accessing a device. In this blog, we will dive deep into the concept of port forwarding and its… Read More »Port Forwarding in Networking: A Comprehensive Guide