When comparing OpenSSH vs Shell NGN - Web Based SSH Client, the Slant community recommends OpenSSH for most people. In the question“What are the best SSH clients for Linux?” OpenSSH is ranked 1st while Shell NGN - Web Based SSH Client is ranked 8th.
Ranked in these QuestionsQuestion Ranking
Pro One of the most trustworthy development teams on the web
Pro The reference
If you find samples or tutorials about SSH, they almost always refer to OpenSSH.
Pro Standard implementation that documentation for all other tools assumes you have installed already
A lot of other tools (e.g. git) are based on this for file transfer.
Pro SSH & SFTP in your browser
Since this tool is cloud-based, there's no need to download and install anything. You can simpy run it from the browser.
Pro Always up to date
Pro Tunnel support
Pro Your devices are available on any device
Pro Telnet Support
Con Command line tool
It can be difficult to use from a command line interface.
Con Lack of configurability
Not enough options to trim it to your needs.
Con Sluggish output
It's ok for a quick session, but compared to native apps it's output is slow.