Category: software

freezetab: A powerful alternative to bookmarks in the Chrome browser

Freezetab helps you save your tabs and keep them organized.

Features:

★ Tab Groups

Every time you save a bookmark the browser forces you to pick a folder to put the bookmark in. You often don’t have a folder name in mind, so all of your tabs end up in one giant unorganized folder. Freezetab doesn’t force you to create a new folder every time you save a tab. Instead it groups your tabs based on when you saved them, which keeps your tabs organized without any extra effort.

★ Websites

Wouldn’t it be nice if you could view a breakdown of all your saved tabs based on the websites the tabs are from? Freezetab allows you to accomplish this in just a single click.

★ Tab Calendar

Imagine you saved a tab on a certain day, but you don’t remember the title or name of the website. With Freezetab’s calendar you can click on a day to view a searchable list of every tab you saved that day.

★ Sharing

With Freezetab sharing tabs is incredibly easy. Just click share in any folder or tab group and a text box will appear with all your links.

★ Search

Unlike the browser’s bookmarking system, Freezetab starts searching as soon as you start typing. The search results update every time you type a character into the search box. Freezetab’s search is incredibly accurate. It searches based on the title of the website, the name of the website, and even the titles of your tab groups.

★ Save Tabs

Browsers only give you two options for saving tabs: the current tab, or every tab. Freezetab allows you to save all tabs, the current tab, everything except the current tab, everything to the right or left of the current tab, or specific tabs. And after you’ve saved your tabs, Freezetab asks if you’d like to close the saved tabs to get them out of the way.

★ Quick Save

Sometimes you just need to quickly save some tabs without all the extra hassle. Freezetab has a quick save feature that saves all your tabs, and then closes them. You can change the default action in the settings.

★ Sorting

Freezetab offers six different ways of sorting your tab groups. You can sort from A-Z, Z-A, oldest to newest, newest to oldest, least to greatest, and greatest to least. You can also search for a tab group by name using the search box.

★ Close Tabs

Browsers offer a few different options for closing tabs. You can close the entire window, the current tab, everything to the right of the current tab, and everything except the current tab. Freezetab adds two additional options: you can close everything to the left of the current tab, or specific tabs. Closing specific tabs can be really useful when you have so many tabs open that the browser doesn’t display their titles.

★ Folders

Browsers have only one way of organizing your saved tabs: dragging and dropping from one folder to another. Before you can organize tabs with folders, you need to find the tabs you’re trying to organize. Freezetab allows you to sort your tabs based on the title or name of the website, the date you saved them, and a variety of other ways. After you’ve found the tabs you’re looking for, you can drag and drop them into folders.

★ Stars

Sometimes you need to quickly mark a tab or tab group as important. Freezetab has a star feature that does exactly this.

Link: Freezetab

OpenSnitch: The Little Snitch application like firewall tool for Linux

OpenSnitch (forked version) screenshot

EDIT: The original developer apparently has abandoned OpenSnitch, however there is a forked version that as of 2021 is still being actively developed. In addition, there is a newer project by a completely different developer called eBPFSnitch. For more information on the forked version, see OpenSnitch Linux Application Firewall Fork With Improvements And Bug Fixes (LinuxUprising)

Continue reading “OpenSnitch: The Little Snitch application like firewall tool for Linux” →

Raspberry Pi Pushbutton Shutdown/Startup

This is extracted from a single post by user RonR in a thread about FreePBX for the Raspberry Pi on DSLReports. I though it might be useful to many Raspberry Pi users:

Raspberry Pi Pushbutton Shutdown/Startup

The attached script will install shutdown and startup capability using a SPST NO momentary pushbutton
switch connected to GPIO header pins 5 and 6. Pressing the button on a running system will initiate
a graceful shutdown (shutdown -h now). Once shut down, pressing the button will restart the system.

1. Copy install and gpio-shutdown.dtbo to the Raspberry Pi.

2. Make the install script executable:

$ chmod +x install

3. Run the install script:

$ sudo ./install

4. Reboot

For additional info, see:

http://www.stderr.nl/Blog/Hardware/RaspberryPi/PowerButton.html

The script can be downloaded from RonR’s original post or directly from https://www.dslreports.com/r0/download/2324182~6a03744946c51bfa4876b6ecd8d4528c/PushButton.zip

How to Pass Arguments to a Bash-Script

You can write a bash script such that it receives arguments specified when the script is called from the command line. This method is used when a script has to perform a slightly different function depending on the values of input parameters (the arguments).

For example, you may have a script called “stats.sh” that performs a particular operation on a file, such as counting its words. If you want to be able to use that script on many files, it is best to pass the file name as an argument, so that you can use the same script for all the files to be processed.

Source: How to Pass Arguments to a Bash-Script (Lifewire)

How to Install and Configure Postfix as a Send-Only SMTP Server on Ubuntu 16.04

Introduction

Postfix is a mail transfer agent (MTA), an application used to send and receive email. In this tutorial, we will install and configure Postfix so that it can be used to send emails by local applications only — that is, those installed on the same server that Postfix is installed on.

Why would you want to do that?

If you’re already using a third-party email provider for sending and receiving emails, you do not need to run your own mail server. However, if you manage a cloud server on which you have installed applications that need to send email notifications, running a local, send-only SMTP server is a good alternative to using a 3rd party email service provider or running a full-blown SMTP server.

In this tutorial, you’ll learn how to install and configure Postfix as a send-only SMTP server.

Source: How to Install and Configure Postfix as a Send-Only SMTP Server on Ubuntu 16.04 (Digital Ocean)

Keep local Instant Messages on your local network with BeeBEEP (Secure Lan Messenger)

When you want to send an instant message to someone else that’s on the same local network as you are, whether that be another family member or a co-worker in your office, why use an offsite chat server that leaves your messages open to interception by the company running the chat server or some other third party? This software will allow you to keep your local IM’s in your local network, and for added safety it also encrypts them! Plus, it supports multiple operating systems, unlike the proprietary chat client that might have come with your computer. It’s NOT for chatting with people elsewhere on the internet; if you need to set up secure connections with offsite chat clients then you may need to set up a private Prosody IM server. But for secure IM chats with people on your local network, this looks like just the thing!

What is BeeBEEP?

BeeBEEP is an open source, peer to peer, lan messenger developed by Marco Mastroddi. You can talk and share files with all the people inside your local area network such of an office, home or internet cafe. You don’t need a server, just download, unzip and start it. Simple, fast and secure.

Main Features:

  • Free: BeeBEEP is free and always will be.
  • Multiple OS: there are releases for Windows, MacOSX, Linux, OS/2 and eComStation.
  • Easy to use: BeeBEEP is a serverless application. Download, unzip and start.
  • Secure: encryption based on Rijndael Algorithm (AES).
  • Instant Messaging: chat with all people connected, group or single user.
  • Groups: create your favorite group of people.
  • P2P: send or share your files and folders (also by drag and drop).
  • Offline messages: messages will be delivered to offline users when they will be online.
  • Message History: all messages can be saved.

    • Source: BeeBEEP (Secure Lan Messenger)

    Easily Use Free VPNs From VPN Gate In Linux With These 2 Tools

    Below you’ll find 2 tools that make it easy to use free OpenVPN servers from VPN Gate in Linux.In case you’re not familiar with VPN Gate, this is project that offers free VPN servers that are ran by volunteers who use SoftEther. It was designed with the Great Firewall of China in Mind and is sponsored by the University of Tsukuba, Japan.

    Source: Easily Use Free VPNs From VPN Gate In Linux With These 2 Tools ~ Web Upd8: Ubuntu / Linux blog

    A short guide on configuring your Raspberry Pi to automatically run x11vnc server at startup

    Hey guys, I thought I would share a short guide I made about configuring x11vnc to automatically launch every time the Pi boots up. I had such a hard time getting it to work and thought I should spread the knowledge. I’m a noob with Linux and the Pi, so I thought this would be really beneficial to any other noobs who are trying to get their Pi to run headless. I am using Raspbian Jessie so I’m not sure how well this will work with other distros.

    This short guide assumes you already have a VNC viewer and know how to configure it. These instructions outline how to configure your Raspberry Pi to automatically start the x11vnc server every time it is booted. This way, you will be able to remotely connect to your Pi any time you launch your VNC viewer.

    Source: Here is a short guide I made on configuring your RPi to automatically run x11vnc server at startup (Reddit/Raspberry Pi)