Remote side unexpectedly closed network connection

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Hao

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Aug 15, 2021, 10:58:27 AMAug 15
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Hi everyone,

I use Mobaterm to ssh connect to my VM successfully, but the ssh connection was unexpectedly closed by remote side within 1 minute, does anyone know the reason?

Below is the serial log after I log in and then closed:
Aug 13 11:59:41 deeplearning-1-vm systemd[1]: session-22.scope: Succeeded. Aug 13 11:59:51 deeplearning-1-vm systemd[1]: Stopping User Manager for UID 1001... Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: Stopped target Default. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: Stopped target Basic System. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: Stopped target Timers. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: Stopped target Sockets. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: gpg-agent-browser.socket: Succeeded. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: Closed GnuPG cryptographic agent and passphrase cache (access for web browsers). Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: dbus.socket: Succeeded. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: Closed D-Bus User Message Bus Socket. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: gpg-agent-ssh.socket: Succeeded. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: Closed GnuPG cryptographic agent (ssh-agent emulation). Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: dirmngr.socket: Succeeded. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: Closed GnuPG network certificate management daemon. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: gpg-agent-extra.socket: Succeeded. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: Closed GnuPG cryptographic agent and passphrase cache (restricted). Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: gpg-agent.socket: Succeeded. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: Closed GnuPG cryptographic agent and passphrase cache. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: Stopped target Paths. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: Reached target Shutdown. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: systemd-exit.service: Succeeded. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: Started Exit the Session. Aug 13 11:59:51 deeplearning-1-vm systemd[32542]: Reached target Exit the Session. Aug 13 11:59:51 deeplearning-1-vm systemd[1]: us...@1001.service: Succeeded. Aug 13 11:59:51 deeplearning-1-vm systemd[1]: Stopped User Manager for UID 1001. Aug 13 11:59:51 deeplearning-1-vm systemd[1]: Stopping User Runtime Directory /run/user/1001... Aug 13 11:59:51 deeplearning-1-vm systemd[1]: run-user-1001.mount: Succeeded. Aug 13 11:59:51 deeplearning-1-vm systemd[1]: user-run...@1001.service: Succeeded. Aug 13 11:59:51 deeplearning-1-vm systemd[1]: Stopped User Runtime Directory /run/user/1001. Aug 13 11:59:51 deeplearning-1-vm systemd[1]: Removed slice User Slice of UID 1001.

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