How to deploy GateOne Terminal emulator SSH client on Synology DSM, GateOne you can find at SynoCommunity packages.

GateOne is a web-based HTML5 driven open-source terminal emulator with a powerful SSH client that can be used to run any terminal application from the browser and provide virtual terminal connections. GateOne can be used as a supplement to web-based management interfaces. This post shows how to deploy and use GateOne with Synology DSM.

GateOne for each browser they supports WebSocket, a browser plugin is not required

Synology DSM with SSH Terminal by GateOne

Synology DSM does not provide a way for diagnostic tasks such as ping or traceroute, with an embedded SSH client these functions comes available. The GateOne SSH client offers other useful applications, such as bypassing a proxy, or if there is no VPN to the NAS and the firewall only allows port 443 (HTTPS) for the browser.

GateOne is not provided or managed by Synology itself, but can be retrieved from the SynoCommunity repository. The SynoCommunity offers free packages for Synology NAS devices.

Note. GateOne version 0.9.3 for DSM 5/6, support for DSM 7 is currently not available (23.8.2021).

Add the SynoCommunity packages repository from which get GateOne SSH

From DSM you open the main menu with the icon at the top left, there you will find the package center.

Click on the Icon Package Center to open it, then on button Settings.

In the General pane that opens, under Trust level, select Synology Inc. and Trusted Publishers.

Then go to the Package Sources section.

Click the Add button and insert the package source, enter SynoCommunity as the name and paste the URL https://packages.synocommunity.com/ for location and click OK.

Synology Packet Center Add synocommunity packages

Now packages can be installed from SynoCommunity, here you enter gateone in the search field at the top of the magnifying glass.

After GateOne appears from the community package source, the app is provided by clicking install.

There are now many possible applications with GateOne.

Image gallery: GateOne Terminal Sessions

Note. In order to be able to access the NAS itself via SSH, the SSH service must be activated in the DSM control panel, how to do it can find here. The most commands require sudo permission, i.e. sudo ping.

What is Websocket ?

The WebSocket protocol is a TCP-based network protocol that was designed to establish a bidirectional connection between a web application and a WebSocket server or a web server that also supports WebSockets

Install Midnight Commander in Synology DSM Terminal Shell

This post shows how to deploy Midnight Commander on a Synology NAS, the file manager for the file system in the Synology Shell via SSH. Midnight Commander, short mc is one of the most well-known console programs on Linux. Fortunately, you can easily add additional software repositories to the Synology NAS to install additional tools.

The Midnight Commander is not provided or managed by Synology itself, but can be retrieved from the SynoCommunity repository. The SynoCommunity offers free packages for Synology NAS devices.

How to add the SynoCommunity repository

From DSM you open the main menu with the icon at the top left, there you will find the Package Center.

By clicking on the icon Package Center to open this, then click the Settings button.

In the now opened General window under Trust Level, enable the Synology Inc. and trusted publishers option.

Then go to the Package Sources section.

Click the Add button and insert the package source, enter SynoCommunity as the name, and insert the URL https://packages.synocommunity.com/ at location and click OK.

Packages can now be installed. The SynoCli File Tools package provides the following command-line utilities: less, tree, ncdu, jdupes, rhash, mc (midnight-commander), nano, file, detox, rmlint, rnm, pcre2, zstd. Nano used to be a separate package, but is now only available through the SynoCli File Tools package.

Now you can connect with a terminal like PuTTY to diskstation and run mc in the shell.

NAS7:/$ sudo mc

We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:

    #1) Respect the privacy of others.
    #2) Think before you type.
    #3) With great power comes great responsibility.

Password:

Midnight Commander

Use sudo to run mc, after the admin password is entering the Midnight Commander is opened.

In the menu bar below, the functions of mc can be used via the F-keys or also with the mouse, such as Edit or Copy, with the cursor keys or the mouse you navigate in the window, press tab to switch to the other window, press F10 to leave Midnight Commander.

Remember, changes to system files require knowledge of the function and its effects.

Enable Synology DSM SSH service

In order for the terminal to be accessible via SSH, the SSH service must be activated in the DSM Control Panel, under Terminal & SNMP, in order to make the Icon Terminal & SNMP visible, Advanced Mode is selected at the top right.

In the Terminal window, enable the SSH service option.

Next post on the same topic might be helpful, see in How to Install Nano on Synology NAS

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Synology DSM with SSH Terminal by GateOne