How to solve the ssh port 22: Connection refused problem in SCP

[Root (0) @ sys11 09:20:29/home/work/code_release/Bj] # SCP./release. Sh [email protected]:/users/a2014102/downloads
SSH: connect to host 192.168.161.151 port 22: Connection refused
Lost connection

Solution:
One possible reason is that becauseSSH server daemon, Or sshd, is not loaded and running on localhost, so any attempt to SSH connect to localhost wowould fail. I check to see whether SSH and sshd are running by typing the following command:

1. $ PS aux | grep SSH

2. # Result: bunch of lines, but none of them is about "sshd", only one line is about "ssh"

 

Result is, I only see SSH running, but not sshd. So I know SSH server daemon is probably not started yet.

First, I verify that I have installed the package"Openssh-server"On my fedora box.

Then I check the status of sshd service:

 

You may not have OpenSSH completely installed. Type this in terminal:

1. Sudo apt-Get install OpenSSH-Client

2. Sudo apt-Get install OpenSSH-Server

 

Another problem that you cowould have is that your firewall cocould be blocking the SSH connection. I use firewall configuration to manage my ports and firewall.

 

To restart it type

1. Sudo/etc/init. d/ssh restart

 

To stop it type

1. Sudo/etc/init. d/ssh stop

 

To start it type

1. Sudo/etc/init. d/ssh start

The following are key steps:

OpenSSH server on Mac OS X

OpenSSH server is part of Mac OS X and you don't need to install any additional package.

To enable the OpenSSH server of Mac OS X, Open System Preferences:

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Click on sharing and enable remote login:
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This will start up OpenSSH server automatically.

 

You can directly turn it off and save it because the Mac is always saved.