4dfda130_Network_Security__Description_and_exceptions
ssh Stanford campus network; servers and research workstations can request open access to entire Internet. [Description and exceptions] 
The ssh service allows remote command-line logins and remote command execution on your Earth Sciences computer. Workstations generally do not provide ssh service by default. If you enable the ssh service on your computer, make sure all local accounts on that computer have strong passwords! The ssh protocol is fully encrypted and requires a local account and password, so it is generally safe. However, hackers do probe ssh services looking for weak passwords. Those probes also generate a lot of network traffic and load on computers. Therefore, general ssh access to the Earth Sciences network is restricted to other computers on the Stanford network in order to reduce hacker probes. Researchers can request access from the entire Internet to their server or workstation if needed.
Network Security
Description and exceptions