SSH Key Fingerprints<\/p>\n
The first time you connect to a computer using ssh or similar, it will display a key fingerprint which you should verify is correct. This is to prevent what’s called a man in the middle attack where an attacker pretends to be the machine you’re connecting to and intercepts your password or traffic. Our fingerprints are:<\/p>\n
clic<\/p>\n
RSA key fingerprints:
\nMD5:b7:21:b5:c7:3d:3d:ee:39:9e:3a:84:62:62:f0:c5:00
\nSHA256:fXXbsrEV0Clt25+NkwhB6bLnG2DirhJIC4guhaGJO7k<\/p>\n
ECDSA key fingerprints:
\nMD5:d4:dd:4b:22:7a:67:a1:9c:a7:a2:df:a7:bb:d4:13:1d
\nSHA256:O7ynd4TcmR3m4R9oF\/wAMqDmEdnpE7\/E0VYg08IgrTA
\ncompute<\/p>\n
RSA key fingerprints:
\nMD5:31:78:59:e8:94:47:46:f6:db:07:90:0f:17:30:76:5b
\nSHA256:DxnitFKP67+8pSNreNh28AeEaUfyULLI9BbnTTNJhcU<\/p>\n
ECDSA key fingerprints:
\nMD5:5d:18:35:1d:1b:01:73:47:f5:69:e4:f9:24:d8:b2:2b
\nSHA256:mLTAjJwwpiFzL14RyWY0yP4xlRIr7HvLmvUXVWJ2LXg
\nConnecting to CS Computers<\/p>\n
For security reasons, we have turned off all commands that use clear text passwords such as telnet (use ssh instead), ftp (use sftp instead), and rsh (use ssh instead).<\/p>\n
Via a windows ssh client<\/p>\n
Obtaining Putty<\/p>\n
To download Putty, please visit: http:\/\/www.chiark.greenend.org.uk\/~sgtatham\/putty\/download.html<\/p>\n
Click putty.exe and download it to your desktop
\nDouble-click on the putty.exe icon on the desktop to start putty
\nIn Host Name section, type in: “clic.cs.columbia.edu” or “compute.cs.columbia.edu”
\nUnder Protocol, be sure to check “SSH”
\nUnder Saved Sessions, type in “Cluster” and click Save. (From now on, you should be able to double-click on the saved session to connect to clic.cs.columbia.edu or compute.cs.columbia.edu.)
\nClick Open
\nFor the first time you log into clic or compute using putty, you will see a new window pop-up with “Putty Security Alert: The server’s host key is not cached in the registry. You have to guarantee that the server is the computer you think it is. The server’s key fingerprint is: … .. .. “. Click “Yes”
\nYou should see “login as: ” in the main window. Type in your username.
\nType in your password and you should be logged into clic or computer
\nPlease email problems to crf@cs.columbia.edu <\/p>\n","protected":false},"excerpt":{"rendered":"