SSH Access

Unlike typical web hosting, a serverlet supports SSH access, letting you control it just like a local computer.

Connecting

Tip: You need to set a password for the applet user before logging in for the first time.

Every serverlet has its own SSH port, available in Administration under the Overview tab. The SSH command structure:

ssh {user}@{physical server} -p {serverlet port}

Example:

ssh applet@serlo.futrou.com -p 10022

On Linux or Windows 10 you can use the command line. Otherwise, we recommend the Putty client.

Port forwarding

Command structure:

ssh -L 127.0.0.1:{local port}:{serverlet's physical server}:{application port} {user}@{physical server} -p {serverlet port}

Example:

ssh -L 127.0.0.1:80:serlo.futrou.com:80 applet@serlo.futrou.com -p 10022

This command exposes the remote application on your local machine.

Logging in with a public key

1. Generate a private key:

ssh-keygen -t ecdsa -b 384 -C {email}

2. Upload the public key (id_ecdsa.pub) to the .ssh/ directory in your home directory on the serverlet (for the applet user: /srv/.ssh/). Options:

ssh-copy-id -i {path to public key} {user}@{physical server} -p {serverlet port}

Example:

ssh-copy-id -i /home/user/.ssh/id_ecdsa.pub applet@serlo.futrou.com -p 10022