Create Virtual/Secondary IP addresses on an Interface in Linux

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Create Virtual/Secondary IP addresses on an Interface in Linux
Follow through this tutorial to learn how to create virtual/secondary IP addresses on an interface in Linux. This enables you to assign multiple IP addresses to a single interface. Create Virtual/Secondary IP addresses on an Interface in Linux You can create virtual/secondary IP addresses on an interface in Linux temporarily or permanently. Create Temporary Virtual/Secondary IP addresses on an Interface in Linux To...

Allow/Deny Specific Users to Login via SSH on Ubuntu 18.04

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Hello there, today we are going to learn how to allow/deny specific users to login via SSH on Ubuntu 18.04 system. Allow/Deny Specific Users to Login via SSH on Ubuntu 18.04 Allow Specific Users to Login via SSH on Ubuntu 18.04 In order to allow specific users or a specific group of users to login to an Ubuntu 18.04 system via...

Connect to WiFi in Linux Using NMCLI command

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Install and use NMCLI tool on Debian Linux
This tutorial will guide you on how to connect to WiFi in Linux using NMCLI command. NMCLI is a command-line tool for controlling NetworkManager and reporting network status. It can be utilized as a replacement for nm-applet or other graphical clients. It is used to create, display, edit, delete, activate, and deactivate network connections, as well as control and...

Set Static Routes via an Interface/IP on CentOS/Ubuntu

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Set Static Routes via an Interface/IP on CentOS/Ubuntu
In this tutorial, you will learn how to set static routes via an interface/IP on CentOS/Ubuntu systems. In a network, a route is a path between networks. Routes through which a packet, in a packet-switching network, uses to travel from one network to the other is decided by a router in a specific network. So, how can one set...

Install and Setup OpenVPN Server on Fedora 29/CentOS 7

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In this guide, we are going to learn how to Install and Setup OpenVPN Server on Fedora 29/CentOS 7. OpenVPN is an open-source VPN software that enables us to create an SSL-based VPN tunnel. Imagine you would like to connect to your co-oporate intranet from a remote location. Well worry not because if you have VPN server setup, this can...

Install and use NMCLI tool on Debian Linux

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Install and use NMCLI tool on Debian Linux
In this tutorial, we provide a step by step guide on how to install and use NMCLI tool on Debian Linux. According to man pages: NMCLI is a command-line tool for controlling NetworkManager and reporting network status. It can be utilized as a replacement for nm-applet or other graphical clients. nmcli is used to create, display, edit, delete, activate, and deactivate...

How to Set System Wide Proxy in Ubuntu 18.04

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In this guide, we are going to learn how to set system wide proxy in Ubuntu 18.04. Imagine you are in a local network environment where access to the Internet is also possible when you are going through a proxy server. Well, in this guide we are gonna learn how to configure system wide proxy settings on your Ubuntu...

Configure NXLog to Forward System Logs to Rsyslog Server on Ubuntu 18.04

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In this guide, we are going to learn how to configure NXLog to forward system logs to Rsyslog server on Ubuntu 18.04. There are various NXLog log collection solutions. In this guide, we are going to configure the opensource version of NXLog. Configure NXLog to Forward System Logs to Rsyslog Server on Ubuntu 18.04 NXLog is not available on the default...

Install Wireshark on Ubuntu 22.04

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install wireshark on Linux
In this guide, you will learn how to install Wireshark on Ubuntu 22.04. Wireshark is the world’s foremost and widely-used network protocol analyzer. Note that it is a criminal act to scan or sniff on any network traffic without any authorization. Install Wireshark on Ubuntu 22.04 Wireshark is available on the default Ubuntu 22.04 repositories. However, the available versions may...

Analyze PCAP Files using Malcolm Network Traffic Analysis tool

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install Malcolm network traffic analysis tool on Ubuntu
In this tutorial, you will learn how to analyze PCAP files using Malcolm network traffic analysis tool. Malcolm can be used to analyze offline full PCAP files or can be used to monitor and analyze live network traffic. Malcolm is integrated with Suricata and Zeek (formerly Bro). These two tools can be used to analyze PCAP files. Analyze PCAP Files...