HPC/UCPH
   
 

Fingerprints from frontends

The current fingerprints for the frontends at HPC/UCPH are:

fend01
RSA:
MD5:b3:40:35:76:55:ff:c4:63:74:0a:83:50:fd:20:28:43
SHA256:67OfWJKHHXWbwVdzhr3oIUDuk4NSYcmphLOvdWZjESs
ED25519:
MD5:ff:cb:dc:04:8c:95:a3:f6:0f:9a:bf:2d:a3:4d:c7:aa
SHA256:v2cAmw29A9odMriRINANvjoXKyxT7q7AoNLUyC5KLI8
fend02
RSA:
MD5:38:39:90:77:68:99:a0:a9:b2:56:3f:e9:86:32:af:9d
SHA256:NlS1kOEvGexLmgmcYVn7flDvkxrcC9/MUKW6XajCtdw
ED25519:
MD5:1d:c3:2e:a7:41:42:b6:7f:9d:84:5e:f2:ae:13:35:aa
SHA256:5L7t8gAEaL1cZ2ENQHdjd1Nvw85eSEAyKptLjcKWGgs
fend03
RSA:
MD5:21:32:df:99:d0:d3:5e:67:73:08:9b:5d:47:47:82:d0
SHA256:iK7jWg8XbAmRWGg2lwvrMo7jAfcJMhujtrpu+HJ9CZo
ED25519:
MD5:3b:75:f0:74:d6:ef:5a:de:c9:21:b8:b0:b4:a5:ce:80
SHA256:M40NwlrQdcf843hZNbud8aI6da5cbJhgfrM3r03uLAA
fend04
RSA:
MD5:35:12:b6:a7:ac:42:64:c4:cd:c1:9b:c4:3d:36:9f:97
SHA256:G6ZAv8lAEGW6U7yixRS9TpmiWujLmSGJMYJwwbws2BE
ED25519:
MD5:85:58:3f:b7:3d:ba:fe:1e:18:b8:4b:f9:fb:e3:66:e5
SHA256:DKS8RnHpMuwtEQ8RX8eQG4Rq0YzbeaUqw7yptQGbpO8
fend05
RSA:
MD5:97:03:a9:3a:15:16:be:99:a5:e1:1b:78:69:41:bf:3d
SHA256:a8INsSU9qYN2S88gp0gglUA2R+zWAu55iL5BB+0mAqs
ED25519:
MD5:a3:7e:e6:23:2f:5f:83:a1:fe:4b:c3:f6:ca:a1:18:ab
SHA256:wkQyKVHSU9hlRh2dJHzILXuMgsdxZtUdwlZgDOtqBOE
astro01
RSA:
MD5:9c:ef:2a:33:e0:39:63:a8:20:88:41:3a:69:3b:3f:a9
SHA256:QtChGn9axi8c5x+ewnI5R73iqVmC5dS26wNqx9Cj5uo
ED25519:
MD5:fe:49:a5:2a:70:1b:eb:d2:be:b3:75:f8:e4:24:aa:75
SHA256:v3Nu1qkXW2jmOzOx08uXf1L14jqhQjS6eK8WKWNJAIY
astro06
RSA:
MD5:7a:4a:eb:df:9a:58:34:bb:d5:db:e2:39:a7:c3:fc:8a
SHA256:zpyY4fD3tZypsWGEwjO8K50TwjAOSZ5eWy6PweDK3ao
ED25519:
MD5:c6:82:5d:10:73:4a:07:d7:cd:66:d6:bb:0f:db:2f:ba
SHA256:kT43lVNE2CCpoG7+g9A73okUuMv03bwpi4lFaSC2WDY
astro07
RSA:
MD5:c1:fb:4e:96:dd:78:b0:5a:92:4b:57:3b:a7:58:69:16
SHA256:up2nuAs6rc12ql032m9Njj/Qr6EqaOonmUJfph/XM7U
ED25519:
MD5:12:67:9d:26:a2:56:e6:15:40:50:a3:22:d9:31:36:cc
SHA256:4pQXlauu5vhAQd/PxHniburvxoJsunYYokxUXrdj6lE
magni
RSA:
MD5:b1:35:dc:23:d7:65:23:b2:4c:2c:24:52:a0:bf:fc:ed
SHA256:psdxTz3TKN/RK63p4C1Le7qgFqo7218IR5N5Wev1qSY
ED25519:
MD5:df:d5:3f:79:1a:29:73:06:f5:4b:65:99:38:e3:62:2d
SHA256:SfaoOPmcr1GFXksFvSM2btEyBx0HfIq5bmN1CUWswQU
dark01
RSA:
MD5:d3:45:30:a5:62:91:0b:84:27:e4:d0:76:05:9a:ff:d4
SHA256:XeDcj07Ze1+pyWQQ1dHw4wZVKIF+g4Rhq+H6SFayha8
ED25519:
MD5:ed:d5:7e:99:d8:e4:a8:24:f0:d4:1c:9b:8a:40:c0:02
SHA256:flWMAnGpUX/D8z/CGxQTxKOYXLyP/jxeXUZvGwFB1V8
hep02
RSA:
MD5:c7:a6:77:25:19:d5:f7:fd:f6:a2:40:3f:3a:60:97:ee
SHA256:JPQQC8VaIch0IUMosuT9Ylci/h77xxwlkgUciafeglc
ED25519:
MD5:f7:90:c7:e1:ab:fe:bb:bd:08:5a:db:5b:8e:84:d7:2d
SHA256:6jIV5/XdxPhEveqz2WHwMM9E2ibnl6fLPnV9YUF0YIk
hep03
RSA:
MD5:2f:70:b1:ec:ef:ba:4c:84:5e:4a:e8:44:94:83:51:25
SHA256:CE40rtrsFgEkllHhuJ2rMrRwiVfsQVyov4K/b/KsgkI
ED25519:
MD5:8b:76:af:1c:fb:54:3a:57:5c:36:a5:e9:91:e3:9b:c3
SHA256:PZTzcEL/7D/w6LN4kZfEemX5Ne/QPPK4ByEResw9gzc
hep04
RSA:
MD5:48:c2:eb:bc:6a:67:72:b1:ab:a7:8b:ed:c4:72:d6:fd
SHA256:O0ok6NJkvCU3YjVQg83zYu31xrwmqDDt7WyEWdKaHs4
ED25519:
MD5:d9:de:2f:c3:01:86:df:5e:e7:10:dd:1f:12:49:96:a5
SHA256:GfnZuycIqr2ekmuEgvJ60pJB2/1XB5qV/SkH8MipkME
otp:
RSA:
MD5:21:e5:2d:fa:bf:f7:48:0a:93:f4:bd:25:fd:2a:aa:64
SHA256:t10I1+Aley4LklXFGvTtvE3CL1lzs1xGj+vOdiynG9s
ED25519:
MD5:b3:15:f6:5a:19:66:8a:11:37:8c:ce:4c:a3:46:ed:27
SHA256:kWn+xbtgmNhkx2HAcv7CJqS4ZSwQt0wbfuCY5uHEOIU

Handeling old fingerprints

If you have used a frontend before, you should get a warning about a new fingerprint. If the reported fingerprint matches the list abowe, please update -- if it doesn't match, something is wrong and you should try another frontend - and if the problem persist, contact support.

Example:

$ ssh fend03
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
The RSA host key for fend03.hpc.ku.dk has changed,
and the key for the corresponding IP address 10.266.1.13
is unknown. This could either mean that
DNS SPOOFING is happening or the IP address for the host
and its host key have changed at the same time.
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now 
(man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
SHA256:1o/3qHI/ImLYjuME0llmztWy6IuXxZY4sLM0r1NR2hM.
Please contact your system administrator.
Add correct host key in /path/to/.ssh/known_hosts to get 
rid of this message.
Offending ECDSA key in /path/to/.ssh/known_hosts:433
RSA host key for fend03 has changed and you have 
requested strict checking.
Host key verification failed.
If the fingerprint matches the list at the top, update it locally - either by removing the old fingerprint with an editor or by running:
ssh-keygen -R fend03.hpc.ku.dk
Checking the hostkey, I can now connect to fend03
ssh HPCuser@fend03
The authenticity of host 'fend03 (10.266.1.13)' 
can't be established.
RSA key fingerprint is 
SHA256:1o/3qHI/ImLYjuME0llmztWy6IuXxZY4sLM0r1NR2hM.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'fend03,10.266.1.13' 
(RSA) to the list of known hosts.
[HPCuser@fend03 ~]$

Disconnects while idle

On some networks, the router/firewall will drop what it consider idle/stall (ssh) connection. This can be prevented by adding:


Host *
        ServerAliveInterval 60
to
.ssh/config
on your local laptop/computer.

OS X Terminal

Users on OS X, might get:


-bash: warning: setlocale: LC_CTYPE: cannot change
       locale (UTF-8): No such file or directory
See a solution here (Method #1 or Method #2)

An alternative suggestion is to to add:


export LANG=en_US.UTF-8 LC_CTYPE=en_US.UTF-8
to .bash_profile on the Mac and restart the shell.

Note: We don't have Mac's, so we have not testet this ourself.