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Problems related to linux operating system, discussions about linux applications, system security .. and everything else related to linux and linux compatible applications
#55
This is to confirm understanding about ssh, whether ssh fails if server RAM/Swap memory is exhausted.
Is server RAM/Swap space has any role in ssh connection? If yes, could you please explain in detail.

Recently we faced such issue where server RAM/Swap was exhausted and client was unable to connect with server using ssh.
#56
Hi,

Most programs nowadays use dynamic memory allocation, which means they allocate memory on demand. SSH server is not an exception. But I don't think that the problem is the SSH server itself since
handling the connection is probably not making the server request another memory page.

When a user log in through SSH, a new process will be started to hold the actual shell. At least it will require a single memory page, which won't be available if the system is saturated.
Even if you could sucessfully open a shell, by reusing one for example, you wouldnt be able to do anything but using the internal shell commands, since the system couldnt start a new process.
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