![]() ![]() This might not always be wanted and some users will want to set this to “ TCPKeepAlive no” if their firewall keeps terminating the session or they are using a connection that suffers from connection drops. If the TCP messages are sent, a crash or connection drop will be noticed. The default argument is “ TCPKeepAlive yes”. It decides whether to send TCP messages to keep a connection standing. TCPKeepAlive can be used in both the SSH client and daemon configuration files.There are three directives that can prevent a connection from being dropped too early. Sometimes you need to keep a connection alive because your firewall wants to terminate the connection. You will get the usual password prompt, but if thing work then it will be the last time you need to type it in. You can simply type in the following: ssh-copy-id yourdomain.tld There is also an easier option if using ssh from a Linux PC. If you’re not familiar with the format of a public key, you can see your public key by running cat as follows, replacing ~/.ssh/id_rsa.pub with your own public key file location: cat ~/.ssh/id_rsa.pubĬopy the key that is displayed after the previous command and paste it on a new line in the ~/.ssh/authorized_keys file on your VPS. The key is generated for the user who invokes the command. If a key pair exists in the current location, those files are overwritten. You can specify a different location and an additional passphrase (a password to access the private key file) when prompted. Use the ssh-keygen command on your PC (if Linux) to generate public and private key files that are by default created in the ~/.ssh directory. SSH keypairs are a way to authenticate to your Linux virtual machine without using a password with the added security of Public-Key authentication. In order for your system-wide changes in /etc/ssh/sshd_config to take effect, you will need to reload or restart the SSH service. In order to change the configuration of SSH server-side, you will need root access either via logging in as root or via a user with sudo rights. If you are tired of repeatedly entering your password or need to do something more interesting than just log in, read on. Sometimes these actions happen via tools and sometimes directly via the terminal. ![]() It is heavily used to connect to servers, make changes, upload things, and exit. SSH or Secure Shell is a network protocol that enables secure connections. ![]()
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