Hi. If my pc is sleep mode and i am SSH connected, them when i back still i have that connections when i switch on pc?
What does that even mean?
It gived you access to another pc. openssh-server it gived you permission in lan to connect with another pc using a terminal. It is similar to putty. Sometimes this is using when some hardware od software need something. Example Linux from Scratch.
Any idle connection will be closed according to the policies defined for that protocol by the host computer. When sleep is enabled, it normally terminates any connection due to both the computer's state and power save policy.
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Ok. I have bare metal machine connected ssh with virtual machine operating system. When both go sleeping and back on the ssh connection still working.