Saba Centra does support remote session, have used it occasionally.
It suits where control is with the person who schedule session.
These are servers buddy, there is no person at the server end.. it has to be unattended.
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Compare it with Bracket software - free for personal use, no installation required, supports unlimited multiple simultaneous sessions, is java based and works on all platforms. Url: BRACKET - The Networks Remote-Control
So is Teamviewer for the exact same points you said. For Personal Use, Teamviewer is best. Besides from the Screenshots of "Bracket" is seems like a amateur designed software & something that runs on Java it cannot be without security risks.
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License overview
Seems that there is pricing for 3 session but its quite expensive @ 1+ lac. But multiple installs seem to be there.
Yes it is quite expensive hence this thread to be honest even 3 sessions is not enough... i atleast have 5 - 6 server sessions open at once, working something / running something in each of them.
RAdmin seems good but i need more than a "Tick Mark" to know whether a server is online / offline & i shouldn't have to press F5 every time i want to find out the same.
I am in contact with Logmein team let see if they can make a deal for me. as Ignition seems to be the best bet.