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How to use SSH to connect to another host?
Any occurrence of %h will be substituted by the host name to connect, %p by the port, and %r by the remote user name. To see the details, pass the -v option to the ssh command.
How to use SSH ProxyCommand in OpenSSH?
In older versions of openssh the -J is not available. So use the following syntax: $ ssh -o ProxyCommand=”ssh -W %h:%p Jumphost” FooServer $ ssh -o ProxyCommand=”ssh -W %h:%p [email protected]” [email protected]
Where can I find an example SSH server?
We’ll also assume that proxy.example.com is the only machine accessible from the Internet. This SSH server comes bundled by default with most Linux distributions and there’s nearly 100% chance you already have it installed.
How to access a remote server with SSH?
Some times you can only access a remote server via ssh by first login into an intermediary server (or firewall/jump host). So you first login into to the intermediary server and then ssh to another server. You need to authenticate twice and the chain can be long and is not limited to just two hosts. This page provide SSH ProxyCommand example
How to SSH and run multiple commands wrapped in if else?
If more than one argument is given, ssh concatenates them with spaces and again has the user’s login shell on host interpret it. Generally, you want to pass one single code argument to ssh and make sure it’s quoted with single quotes to ensure no expansion is done by the local shell.
How to pass commands to a remote host?
Instead I tend to just pass commands to bash on the remote host through a pipe instead. This way you don’t have to worry about getting the escaping right in your ssh command line. Just pass into the pipe exactly what you would type if you were connected interactively. Trying to pass quoted command strings over ssh is always a challenge.