SSH service
1. About
The Secure Shell Protocol (SSH) is a cryptographic network protocol for operating network services securely over an unsecured network. Its most notable applications are remote login and command-line execution. The Secure Shell Protocol is an essential component of the administration of any computer network and the Internet.
2. Systems
2.1 Frontend
| FQDN | BFH | IT-Services | IPv6 | IPv4 |
|---|---|---|---|---|
| ssh.bfh.info | ||||
| ipv6.ssh.bfh.info | ||||
| ipv4.ssh.bfh.info |
| FQDN | BFH | IT-Services | IPv6 | IPv4 |
|---|---|---|---|---|
| ssh.bfh.science | ||||
| ipv6.ssh.bfh.science | ||||
| ipv4.ssh.bfh.science |
2.2 Backend
Warning
Always use the frontend DNS record
Never use the backend nodes directly:
- backend may change without notice at any time (e.g. IP addresses, DNS records, configuration, etc.)
- backend has no legacy support or grace periods, changes are implemented instantly
- backend can be rebootet without notice at any time
- backend access will soon be restricted
| FQDN | IPv6 | IPv4 |
|---|---|---|
| node1.ssh.bfh.info | 2a07:6b40::71 | 147.87.0.71 |
| node2.ssh.bfh.info | 2a07:6b40::72 | 147.87.0.72 |
| node3.ssh.bfh.info | 2a07:6b40::73 | 147.87.0.73 |
| node4.ssh.bfh.info | 2a07:6b40::74 | 147.87.0.74 |
| FQDN | IPv6 | IPv4 |
|---|---|---|
| node1.ssh.bfh.science | 2a07:6b42:101:11::11 | 147.87.8.11 |
| node2.ssh.bfh.science | 2a07:6b42:101:11::12 | 147.87.8.12 |
6. Backlog
Legacy
retire ssh{1,2}.its.bfh.ch
retire node{1,2}.ssh.esb{,-test}.bfh.ch [2025-08 after ESB debian-lifecycle]