When comparing Remmina vs Shellngn - Cloud Based SSH Client, the Slant community recommends Remmina for most people. In the question“What are the best SSH clients for UNIX-like systems?” Remmina is ranked 8th while Shellngn - Cloud Based SSH Client is ranked 12th. The most important reason people chose Remmina is:
It's easy and fast to find what you want, nice for daily use.
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Pros
Pro Straightforward user interface
It's easy and fast to find what you want, nice for daily use.
Pro Supports multiple remote desktop protocols
Remmina supports a number of protocols for accessing remote desktops - RDP, SSH, XDMCP, NX, and SPICE.
Pro You can manually adjust the quality of connection
To more effectively manage the available bandwidth, you can change the speed of your connection. This lets you sacrifice some of the quality of multimedia in favor of more speed.
Pro All connections are organized in groups
All connection profiles can be neatly organized into groups, making managing a large of machines simple.
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 RDP/VNC Support
Pro Always up to date
Pro Your devices are available on any device
Pro Tunnel support
Pro RDP/VNC In your browser
Remote desktop your servers from the browser.
Pro Telnet Support
Cons
Con No RDP server, only client
Remmina is only a remote client (VNC, RDP). It has no server features.
Con Expensive
$3.90 per month
Con Not free
In fact not only not free, but only available at a subscription basis.
Con Sluggish output
It's ok for a quick session, but compared to native apps it's output is slow.
Con Lack of configurability
Not enough options to trim it to your needs.