Here are some tricks for using SSH through a proxy or bastion quickly.

How to run an internet speed test from the Linux command line. We examine two tools that both use the speedtest.net service to test your connection speeds.

SCION is the first clean-slate Internet architecture designed to provide route control, failure isolation, and explicit trust information for end-to-end communication. SCION organizes existing ASes into groups of independent routing planes, called isolation domains, which interconnect to provide global connectivity. Isolation domains provide natural isolation of routing failures and misconfigurations, give endpoints strong control for both inbound and outbound traffic, provide meaningful and enforceable trust, and enable scalable routing updates with high path freshness. As a result, the SCION architecture provides strong resilience and security properties as an intrinsic consequence of its design. Besides high security, SCION also provides a scalable routing infrastructure, and high efficiency for packet forwarding. As a path-based architecture, SCION end hosts learn about available network path segments, and combine them into end-to-end paths that are carried in packet headers. Thanks to embedded cryptographic mechanisms, path construction is constrained to the route policies of ISPs and receivers, offering path choice to all the parties: senders, receivers, and ISPs. This approach enables path-aware communication, an emerging trend in networking. These features also enable multi-path communication, which is an important approach for high availability, rapid failover in case of network failures, increased end-to-end bandwidth, dynamic traffic optimization, and resilience to DDoS attacks.

ShareDrop is a peer-to-peer file sharing app powered by HTML5 WebRTC.

ShareDrop is a free app that allows you to easily and securely share files directly between devices without having to upload them to any server first.

Corkscrew is a tool for tunneling SSH through HTTP proxies, but... you might find another use for it.

Creates GPG encrypted, compressed backups; client-side encryption allows to upload the backup onto untrusted servers.

Encrypted backups with a clean and simple interface; easy to use and set up; possibility to mount the backup archive with FUSE and inspect it as a regular file system.

A fork of tmux that allows to share the terminal with other users. AFAIK, it connects to a centralized server to establish the connection. Someone may see this inconvenient for privacy issues.

ngrep applies the grep logic to the network layer, allowing to match regular expressions against data payloads of packets; it recognizes IPv4/6, TCP, UDP, ICMPv4/6, IGMP and Raw across Ethernet, PPP, SLIP, FDDI, Token Ring and null interfaces.

Ntfy is a simple yet serviceable cross-platform Python utility that enables you to automatically get desktop notifications on demand or when long running commands complete. It can as well send push notifications to your phone once a particular command completes.

"Conspy allows a (possibly remote) user to see what is displayed on a Linux virtual console, and send keystrokes to it."

Locally mount a remote file-system through SSH and access files and directory as they would be on the local machine.

The purpose of this project is to provide an independent open source implementation of Google Drive client for GNU/Linux. It uses Google Drive REST API to talk to Google Drive service. The code is written in standard C++.

Simplifies the use of duplicity by keeping clean configuration files to automate the backup.

Custom SSH server written in Go. Instead of a shell, you get a chat prompt

A "fast, light and extensible chat client". WeeChat is a fast, light and extensible chat client, with a text-based user interface. WeeChat is: - modular: a lightweight core with optional plugins - multi-protocols architecture (mainly IRC) - multi-platforms: Linux, Unix, BSD, GNU Hurd, Haiku, macOS and Windows (Bash/Ubuntu and Cygwin). - extensible with C, Python, Perl, Ruby, Lua, Tcl, Scheme, Javascript and PHP - fully documented and translated into several languages - a free program released under the terms of the GNU General Public License version 3 - an active project with a large community for scripts.

Twitter client for the terminal; allows almost all the operations that can be done from GUI and Web clients

The most popular IRC client for the command-line; a flexible program, with many options and supporting many protocols

IM program supporting many protocols, including Yahoo!, AIM, IRC, or WLM; comes with the Pidgin project

The best CLI client for Slack, because everything is terrible!