16.04 SSH connection refused: hunting down root-cause - Ask Ubuntu
symptoms: 16.04 refuses connection putty , replies ping requests
remedies on askubuntu suggest installing:
sudo apt-get install openssh-server
before this, how can verify install genuinely needed: i'd verify not configuration obstacle or maybe service needs turned on? there list of checks can performed?
update: does response indicate install required?
user@host:~$ apt-cache policy openssh-server openssh-server: installed: (none)
diagnostic credit , muru:
user@host:~$ service ssh status ● ssh.service loaded: not-found (reason: no such file or directory) active: inactive (dead) user@host:~$ service ssh start failed start ssh.service: unit ssh.service not found. user@host:~$ apt-cache policy openssh-server openssh-server: installed: (none) candidate: 1:7.2p2-4ubuntu2.1 version table: 1:7.2p2-4ubuntu2.1 500 500 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 packages 500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 packages 1:7.2p2-4 500 500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 packages
if want connect using ssh, need have ssh running on target system. service ssh status
shows doesn't know of such service , apt-cache policy openssh-server
shows hasn't been installed @ (installed: (none)
). so, yes, have install it.
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