HPC/UCPH
   
 

Fingerprints from frontends

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

fend01
RSA:
MD5:3e:99:a1:89:18:b7:4f:7b:04:7a:5c:8d:b9:a1:fe:4c
SHA256:QuETIPGjurLspd5vl5pu/DK8/T1XIhd3es/ie2NhS60
ED25519:
MD5:9a:90:73:7e:bd:73:74:a4:ad:ca:b6:b4:a7:32:6e:99
SHA256:PuZ1k0td7JUk8xGVIqvENau7zYPUIuBBfcgAudmQF0k
fend02
RSA:
MD5:7a:29:f6:12:a0:28:e2:70:6a:46:16:48:86:ae:c2:d8
SHA256:b1IJo4hRqX60VsDv4xXM9zfr5zvl5jAT9K3zhyinbkk
ED25519:
MD5:12:95:07:dc:c6:d8:e5:fb:c2:b8:0e:dd:d7:84:51:23
SHA256:PCSi1y3DqcDpOuutJQlEQ2Xvbwxja9cFPca+NKQ8e5Y
fend03
RSA:
MD5:57:03:29:ea:dc:ce:b4:52:92:d0:f9:b8:04:92:4d:95
SHA256:37xxnU6Sz3b1aw1eT66X+mADud+KLsP3WkIZ8sMeWwY
ED25519:
MD5:d5:3b:5f:10:76:89:73:7d:a6:1f:ee:b3:c4:4c:60:eb
SHA256:vfocFHybQBeOupeRvi7VT7qwjNa2XWuEdpgp9mIEyDI
fend04
RSA:
MD5:7c:59:86:a6:49:35:78:4e:d5:e6:d4:ee:d3:08:2c:91
SHA256:Qvfsu7Xnk/kKXujvaIdnpOrhzogWzUM4iO5g/Uw0M3M
ED25519:
MD5:ba:f5:23:18:cf:99:97:0d:0f:60:23:92:0f:3d:44:f0
SHA256:cJ50HnzmLVZevxt1pU0QSXx0p36V9MBt3JMyUAeNZa4
fend05
RSA:
MD5:3a:6c:5e:cb:1c:f9:c3:56:9b:da:51:38:71:ee:4c:65
SHA256:4vEM7iGe6MLaV2gJhBSVcb2uf63Bpo+qDsQWmrUyrRE
ED25519:
MD5:e6:bf:0e:0e:45:2a:19:bc:ee:dd:e4:f1:6d:79:80:ac
SHA256:CJAdQsrhW4TeoNMS8j/qqP0svcKdEeU6p4YSwNHBPe0
astro01
RSA:
MD5:5b:b0:7d:68:ac:92:0d:6c:a4:18:91:b7:8b:a5:03:6b
SHA256:Sy/ORvNXF5X2BrqzOPNQyvhoo0CurXmLcf2K4hPsRqM
ED25519:
MD5:55:4c:3c:46:d4:de:b3:21:43:0a:e1:ae:53:8d:91:a2
SHA256:IFTC2s2MNnvhsiUvDGbJGOxZAGslsCw8cv1ivWVuF7c
astro02
RSA:
MD5:9c:ab:00:72:69:31:1f:52:13:0e:c8:86:34:0a:af:59
SHA256:Mx/7QcHRgcSU0f3Y/q1Zskaz2p3PSX7LaICnbiu0m1Y
ED25519:
MD5:21:75:e3:69:eb:35:50:de:4c:03:40:0e:68:cb:98:95
SHA256:liPD5SGS5ndDWIV6AsKilCT5F65BW56ZebEBLC30RQA
astro06
RSA:
MD5:b6:d5:f0:9c:2b:25:ec:dd:8d:1d:c9:60:ee:64:40:6c
SHA256:qWBfLz+jI2VDI4oDjCHOiuMQUvew6bLxfqNdSgDQ+hY
ED25519:
MD5:c6:d4:c7:ba:43:5e:7a:e9:f7:69:6e:c8:98:a1:7b:dc
SHA256:iYV+Vjc8pZGtE7fHjLRpzD7n0UGfR4VlA1t1gRJHDgA
astro07
RSA:
MD5:46:34:ce:92:9c:04:9d:b7:ce:a3:ee:49:b1:0e:a9:bf
SHA256:l1XIDD202VB94Uq0doGvPgo0F9jINdxnxnnsWApucdk
ED25519:
MD5:33:a3:1c:a0:45:73:5e:0b:a8:1a:41:77:6a:61:5c:d9
SHA256:3yNWyfOU/E97TDxWBoAkc5RT2SskziJTtprXReMatPU
magni
RSA:
MD5:57:7a:b6:33:4a:d5:09:66:b5:43:bd:5f:e2:9f:01:ec
SHA256:x4ww5zWU4Mj3AAoe1XmCDx/gKZL3lnZhXXYYfY15X/k
ED25519:
MD5:f4:43:06:8a:14:bb:0a:9c:6d:9b:89:38:85:fb:2f:64
SHA256:JWMKBJUaAhn6irhcELWQJlVMr+fsftBDkqcRcqs+jqk
dark01
RSA:
MD5:77:d2:f6:00:76:70:48:75:1d:3c:a7:f4:f5:bb:8a:a1
SHA256:5TvxDnUVwl3rWmW1Bnq6R0Rx9YxEKZWfSoSC0AxReUU
ED25519:
MD5:41:93:02:32:85:51:fb:36:b6:24:ea:ac:cc:18:49:1b
SHA256:b6Gh+BDZpVf8Udx5LPcO5JuqzZt/J1LOi9CYs26wK/Q
hep02
RSA:
MD5:cf:b9:93:2f:b8:6f:55:69:cb:66:ee:80:b0:d5:e3:97
SHA256:1xx5MJXKRdGSNNECVVAwEgHMTfRGazSdN9C9LIFH0gY
ED25519:
MD5:0b:c3:bf:3c:a5:69:14:4e:33:fd:fa:00:b4:53:e0:fe
SHA256:ClNAThDRUzQAQ41vCcKm6d8pXkvkiPepywE1uGggAp8
hep03
RSA:
MD5:6b:ec:35:a6:ab:1d:5a:64:24:4b:1e:a9:ff:28:75:75
SHA256:bRxHHfMIBLeFPFiLFvsth5dP8jM1+fVWJi2LK52+A4g
ED25519:
MD5:8a:62:03:81:34:87:71:13:33:09:21:b1:17:a2:e9:00
SHA256:/RqzSd4+vhe27ABtczPMfPlzwOr+YCjuDYyw88+qhPg
hep04
RSA:
MD5:b8:b8:99:b9:80:34:fa:3c:99:c1:4e:e9:95:e9:30:1c
SHA256:ZsOPFkXLKTi93/Gai8WCtsiU7cI0gRn7w4ZBp5x94N0
ED25519:
MD5:34:a9:87:b1:bc:0c:33:16:d1:2c:54:97:cd:4e:3e:0d
SHA256:TaVaeJxWPeDjQHHbJbpVjpdMdHgJfrtXvF+HKuaihrY
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.