networking

Connection Information menu on Manjaro Linux

Configuring Network on Manjaro Linux

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There’s a lot of network configuration that can be done on Manjaro Linux. Configuring DHCP, static IP addresses, default gateway, DNS, firewall, and other network settings can all be done from either GUI or command line. In this guide, we’ll show you a few methods for configuring the networking on your own system.

In this tutorial you will learn:

  • How to access network information
  • How to configure DHCP or static IP address
  • How to configure default gateway, DNS, and other settings
  • How to check public IP address

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How to make the most of OpenSSH - Tips & Tricks

How to make the most of OpenSSH

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OpenSSH is a network connectivity and remote login tool that securely encrypts all traffic, originally developed by OpenBSD developers for use in their operating system. Considering the OpenBSD developers’ primary focus on security, it is no surprise that OpenSSH quickly became the standard remote login implementation for all Linux and Unix operating systems. OpenSSH uses a client server model with the ssh command providing client functionality and sshd providing server functionality.

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Redhat 7 boot screen - enter vnc and network options

Initiate Redhat installation remotely via VNC

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Apart of the regular local Redhat’s installation, the Redhat system allows admin to modify boot options to temporarily setup network interface and instruct the installation program Anaconda to initiate installation via VNC. In this article we will modify default Redhat’s boot options to initiate remote installation using VNC.

First insert installation image and boot into a Redhat’s boot options screen as show below:

Redhat 7 boot screen - enter vnc and network options

On this screen we need to modify boot options to instruct the installation program Anaconda to provide us with VNC interface after the end of the boot sequence. Depending whether you use DHCP on your network you can either set static address or do not include any network options for dynamic IP address assignment. In the above screen we have included the following options after pressing “TAB” on the main ( first ) boot option:

ip=10.1.1.56 - optional
netmask=255.0.0.0 - optional
vnc - required

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dropbear-banner

How to install and configure Dropbear on Linux

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The dropbear suite provides both an ssh server and a client application (dbclient), and represents a light alternative to OpenSSH. Since it has a small footprint and uses system resources very well, it is generally used on embed devices, with limited memory and processing power (e.g routers or embed devices), where optimization is a key factor. It provides a lot features, like, for example, X11 forwarding, and it is fully compatible with the OpenSSH public key authentication. In this tutorial we will see how to install it and configure it on Linux.

In this tutorial you will learn:

  • How to install and configure dropbear on linux
  • How to use the dropbearkey, dropbearconvert and dbclient utilities

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Curl command on Linux

Curl file download on Linux

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The cURL linux command can use various network protocols to download and upload data on Linux. Normally, using the cURL command is pretty basic, but it has a ton of options and can grow more complicated very quickly. In this guide, we’ll go over some of the more common uses for the cURL command and show you syntax examples so you can use it on your own system.

In this tutorial you will learn:

  • What is cURL and what can it do?
  • How cURL compares to wget
  • How to download a file from a website with cURL
  • How to follow redirects
  • How to download and untar a file automatically
  • How to authenticate with cURL
  • How to download headers with cURL
  • How to use quiet mode with cURL

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How to use the Tor network to browse online on Ubuntu 20.04 Desktop/Server

Install Tor proxy on Ubuntu 20.04 Linux

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Tor is free software that allows a user to have complete anonymity online. It can be used to avoid having websites and applications track your location or attempt to identify you. It does this by routing your network data through a pool of servers around the world, while also stripping identifying information from packet headers.

It’s often used to avoid region blocks on the likes of Netflix or YouTube. Some users like it because it prevents ad tracking companies from building a profile on you based on your browsing habits and serving personalized ads. Still, others are just a little paranoid and appreciate the assurance that no one can spy on their internet activity.

You can use Tor on Ubuntu 20.04 Focal Fossa by installing the Tor client. We’ll show you how to set it up in this guide, which includes browser configuration and enabling all of your shell commands to run through Tor’s network.

In this tutorial you will learn:

  • How to install Tor on Ubuntu 20.04
  • Test your network connection through Tor
  • How to Torify your shell temporarily or persistently
  • Enable and utilize the Tor control port
  • Configure web browser to use Tor network

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Ubuntu 20.04 SSH Server

Ubuntu 20.04 SSH Server

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In this tutorial you will learn how to deploy an SSH server on Ubuntu 20.04 Server/Desktop.

WHAT IS SSH SERVER?
OpenSSH is the premier connectivity tool for remote login with the SSH protocol. It encrypts all traffic to eliminate eavesdropping, connection hijacking, and other attacks. In addition, OpenSSH provides a large suite of secure tunneling capabilities, several authentication methods, and sophisticated configuration options. Reference: https://www.openssh.com/

In this tutorial you will learn:

  • How to install SSH Server
  • How to change SSH server’s status
  • How to open firewall rules to allow SSH incoming traffic
  • How to connect to SSH Server remotely using the ssh command
  • How to change default SSH listening port

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test Internet connection on Linux

How to test Internet connection on Linux

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In this tutorial you will learn how to test internet connection on Linux operating system. When we talk about the internet connection usually this for everybody means different thing. Meaning, you might be connected to the Internet but unable to browse any web sites.

In this tutorial you will learn:

  • How to test internet connection
  • How to test DNS resolution
  • How to test Local Area network
  • How to check your DNS resolution

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