Archives For network

Looking for an app to transfer files and send messages over local network? LocalSend is good choice that works for most devices.

LocalSend is a free and open source application which promotes itself as alternative to Apple’s AirDrop. It’s a cross-platform app that allows to securely send files and messages over local network without an internet connection.

It works in Linux, Windows, macOS, Android, iOS, and Fire OS. Meaning you can use the file transfer app in most PC and mobile devices. And, the app doesn’t require an internet connection or external servers. It uses REST API for secure communication. All data is sent securely over HTTPS, and the TLS/SSL certificate is generated on the fly on each device.

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This is a step by step beginner’s guide shows how to install and set up a lightweight Socks5 proxy server in Ubuntu or Debian.

Due to poor network connection, I decided to set up a proxy server on my remote VPS for playing an online game. However, the tutorials on the web are mostly using Dante, which consumes too much RAM, and makes my cheap VPS server frequently run out of memory.

After digging around, I found a lightweight socks5 proxy server called Microsocks. And, here’s how to install & use it in Debian & Ubuntu.

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This tutorial shows how to change the MAC Address, aka hardware address, for your network interface in Ubuntu 24.04. Though the title said for Ubuntu 24.04, it should work in all current Ubuntu releases, including Ubuntu 20.04 and Ubuntu 22.04.

MAC address, stands for Media Access Control address, is a unique identifier primarily assigned by device manufacturers. Therefore, it’s often referred to hardware address or physical address. However, many network interfaces support changing their MAC addresses. And, here’s how to do the trick in Ubuntu.
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This simple tutorial shows how to get rid of the “Mobile Broadband” menu option from the upper right system status menu in GNOME Desktop.

GNOME, the default desktop in Ubuntu and Fedora Workstation, has built-in support for mobile broadband. If your computer (usually laptop) has a built-in SIM card slot, then it will show you the “Mobile Network” page in Settings and “Mobile Broadband” option in upper right menu.

For those who rarely use this feature, the option is useless but makes the menu longer. So, it’s a good choice to completely disable it!


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Network diagnostic is useful when you getting internet connection issue. And, here’s a brand new graphical tool for Linux beginners.

It’s PingPath, a free open-source tool written mostly in C, and use GTK4 toolkit for its user interface.

PingPath uses the popular command line tool ping to send ICMP ECHO_REQUEST to networks hosts. Simply type the host-name or IP address in header input box, hit Enter, then press Ctrl+S to get started.

It will then show you all the host IPs (if you start with host-name), as well as their autonomous system numbers and country code. For each, it shows the real time information about

  • numbers of pings set.
  • loss in percentage.
  • best, worst, last, and average delay in milliseconds.
  • as well as ping jitter (variation in delay).

Besides digital information, it also has a Graph tab to show all the info in graph lines with or without legend. This makes it easier to identify connectivity problems, measure network latency between your machine and the destination host.

The app by default sends 100 packets with 1 seconds time interval. You can change the numbers and other settings using the header-bar button menus.

How to Install PingPath in Ubuntu

The tool has an official PPA which so far supports for Ubuntu 22.04, Ubuntu 23.10, and Ubuntu 24.04.

1. First, press Ctrl+Alt+T on keyboard to open terminal. When it opens, run command to add the PPA:

sudo add-apt-repository ppa:lrou2014/pingpath

Type user password for sudo authentication, and hit Enter to continue.

2. If you’re following this tutorial on Linux Mint, then you may either use Software Manager or manually refresh package cache by running command:

sudo apt update

3. Finally, install the network diagnostic tool by command:

sudo apt install pingpath

Once installed, search for and launch it from either start menu or Gnome overview screen depends on your desktop environment, and enjoy!

Uninstall:

To uninstall the tool, open terminal (Ctrl+Alt+T) and run command:

sudo apt remove --autoremove pingpath

And, remove the PPA, either by running the command below in terminal:

sudo add-apt-repository --remove ppa:lrou2014/pingpath

Or, use the Software & Updates tool to remove the source line under Other Software tab.

This simple tutorial shows how to install Nicotine plus, the graphical client for the Soulseek peer-to-peer network, in Ubuntu 20.04, Ubuntu 22.04, and Ubuntu 24.04.

Soulseek is an ad-free, spyware free, and plain free file sharing network, make it easy for you to find people with similar interests, and make new discoveries!

And, Nicotine is a lightweight, pleasant, free and open source (FOSS) alternative to the official Soulseek client, while also providing a comprehensive set of features.

The app used to be available in Ubuntu system repository, but removed due to lack of development. It’s later revived and finally added back to Ubuntu 24.04 repository.

For current Ubuntu 24.04, Ubuntu 22.04, Ubuntu 20.04, and even Ubuntu 18.04, user can install it from the official PPA.

Nicotine in Ubuntu 22.04

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Got local music files in your Ubuntu PC/laptop? Here’s how to transfer them to your iPhone.

It’s NOT hard to install iTunes in Ubuntu using Wine in today’s Linux. However, iTunes running in wine does not detect my iPhone, at least in my case in 22.04.

If you just want to transfer music from PC to your iOS device, then you don’t have to struggle with iTunes in Linux. There are easy alternatives! And, VLC is a very popular one of them.

This tutorial is tested on iPhone with iOS 16.1.1, and Ubuntu 22.04 with default GNOME.

Transfer Music from PC to iOS via VLC

1. First, go to “App Store” and install the free open-source VLC media player in your iPhone or other iOS device.

VLC media player in App Store

2. Not sure if it required, but you may launch VLC in iOS for the first time to generate app folder.

3. Now, connect your iPhone or other iOS device into Ubuntu. Then, open “Files” and go to the mounted folder from left panel.

In my case, it’s a phone icon with text “Document on iphone”. In that folder, click VLC icon. Finally, drag’n’drop your music files into the VLC sub-folder.

When done, you can now open VLC in iphone/iOS, and find out the local music files under “Audio” bottom tab.

4. (Optional) If you want to use Apple Music or other app for music playback, then you can save songs to files.

First, navigate to “Songs” tab in VLC. Then, tap top right “circle with 3 dots” icon, and click “Select” to choose all the files.

Finally, use the bottom right icon to open menu to “Save to Files” for all selected music files.

How to install Zoom in Ubuntu 24.04

Last updated: April 28, 2024

This simple tutorial shows how to install Zoom video communication client in Ubuntu 24.04 desktop.

Zoom is a popular app for video/audio conferencing meetings and live chat. It works on Linux, Windows, macOS, iOS, Android, and ChromeOS.

For Ubuntu users, Zoom can be installed either via native .deb package and universal Flatpak package. Choose either one that you prefer.

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There are quite a few ways to transfer files between different machines. For Ubuntu and most other Linux, here’s an easy way for choice.

Usually, I use a USB cable or a messenger app for transferring photo images between my personal PC and mobile devices.

However, my USB cable is always NOT near at hand and I hate to scan QR code again and again on PC for logging 3rd app. In this case, creating a temporary http file server with Python is an easy and good choice.

Upside and downside

Python is pre-installed in most Linux Distros. So this is an universal method for Linux. It also works in Windows and macOS with Python programming language installed.

As a simply http server, any devices with a web browser can download (or upload) files from/to the server side either over local network or internet.

However, http is NOT designed for transferring files. It’s OK to handle small files (e.g., photo images and short videos less than a few hundred MB). But for large files with a few GB or more file size, it may not work! As well, it’s NOT secure for accessing important files outside from local network.

Single command to create a Python http server:

For those who are new to Linux, user may first open file manager, navigate to the folder that contains the files to share with other device, right-click on blank area and select “Open in Terminal”.

It will open a terminal window and automatically navigate to that folder as working directory.

Or, you can also open terminal from start menu and run cd command to navigate directory. For example, run the command below to navigate to user’s Pictures folder:

cd ~/Pictures

Then, run the single command to start a http file server (For some Linux, replace python3 with python in command):

python3 -m http.server

By default, it listens to port 8000. If the port is already in use, use python3 -m http.server 9090 to set another port number (change number 9090 as you want).

After that, visit http://ip-address:8000 (change number 8000 if you set another port) in any device via a web browser. You can then open and/or right-click save as to download any file from that folder.

Create python http server with upload support

1. If you want to send files from any device to Ubuntu Linux, open terminal and run command:

python3 -m pip install --user uploadserver

Install pip first via sudo apt install python3-pip if the command above does not work. This command will install a Python module uploadserver.

NOTE: For Ubuntu 24.04, this pip install command does NOT work due to policy change. You may either follow this tutorial for workaround, or use the command below instead:

python3 -m pip install --user uploadserver --break-system-packages

2. Then open or navigate to your desired folder in terminal window, and run command to create simple http file server with both download and upload support:

python3 -m uploadserver

Also specify port number if you want, for example, python3 -m uploadserver 9990

3. Finally, visit http://ip-address:8000 in any device via web browser can access and download files. Or, go to http://ip-address:8000/upload for uploading files.

For security reason, you may add a token authentication so client machines need to verify before being able to upload a file. To do so, run the command below instead in Ubuntu Linux:

python3 -m uploadserver -t password_here

Looking for a peer to peer file transfer app that works outside the local network? Warp is the stupid simple application to do the trick for Linux.

There are a few applications for LAN file transferring, such as Warpinator and Dukto. For sending date all over the world, Warp is a new GTK4 app for transferring any arbitrary-sized files and directories without struggling with Linux command or using a cloud service.

The app provides a stupid simple interface with 2 tabs: Send and Receive. Simply click on the “send file” (or folder) button and select your data, it will generate a transmit code.

On another machine with the app installed, type the code in “Receive” tab and click “Receive File” button will start transferring data.

Every file transfer is encrypted using the Magic Wormhole protocol. And, it will directly transfer files on the local network if possible. Though, an internet connection is required to connect to rendezvous server so sender and receiver can find each other over the internet.

How to Install Warp in Linux:

NOTE: The app is in early age that may have bugs. At the moment of writing, it provides binary package for most Linux systems and Chrome OS using Flatpak package.

For Ubuntu, firstly press Ctrl+Alt+T on keyboard to open terminal. When it opens, run the command to install flatpak daemon:

sudo apt install flatpak

Other Linux & Chrome OS may follow this setup guide to install the daemon.

Next, install the app using command:

flatpak install https://dl.flathub.org/repo/appstream/app.drey.Warp.flatpakref

For first time installing Flatpak app on Ubuntu 22.04, you need a system restart to make the app icon available in search result.

Once installed, either press Super/Windows key on keyboard and search for and open the app, or run command flatpak run app.drey.Warp to start it from terminal.

Remove Warp file transfer

To remove the app, run command in a terminal window:

flatpak uninstall --delete-data app.drey.Warp

And clean un-used run time via: flatpak uninstall --unused.