Verifying a Secure Shell Connection (SSH)

When connecting using ssh for the first time to an unknown host (one of our remote access servers for example) you will be asked whether you trust this host with some kind of prompt similar to this one:

The authenticity of host 'SOMEHOST (N.N.N.N)' can't be established.
RSA key fingerprint is xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx.
Are you sure you want to continue connecting (yes/no)?

NOTE:  To view the fingerprints as we have published them here,  use the following ssh commands:

ssh-keyscan  hostname > tmp.pub

ssh-keygen -E md5 -l -f tmp.pub

To verify the integrity of the host, make sure that the public key fingerprint matches those of our corresponding servers:

Hostname SSH Fingerprint Last Updated
access.cims.nyu.edu 71:63:c0:cc:63:06:9b:6a:25:a1:17:62:48:be:3f:8f (RSA) 2016/03/18
access1.cims.nyu.edu 71:63:c0:cc:63:06:9b:6a:25:a1:17:62:48:be:3f:8f (RSA) 2016/03/18
access2.cims.nyu.edu 71:63:c0:cc:63:06:9b:6a:25:a1:17:62:48:be:3f:8f (RSA) 2016/03/18
i6.cims.nyu.edu

fe:f8:3a:52:9f:14:cd:8b:83:39:04:34:0d:80:1a:e1 (RSA)

ab:06:06:d6:2c:1e:97:0a:eb:f3:a7:1e:e2:67:6c:a5 (ECDSA)

2017/09/01
courses2.cims.nyu.edu 6b:b5:d0:ae:2e:41:f3:ef:52:9f:68:e6:61:da:87:dd (RSA) 2018/04/24
courses3.cims.nyu.edu bd:2f:a9:1d:67:e0:88:1d:bb:a2:97:4b:4e:cf:87:59 (RSA) 2018/04/24
crackle1.cims.nyu.edu 94:92:77:da:3f:04:80:36:5c:34:21:ca:4f:0f:3d:42 (RSA)
5a:f9:cc:d1:4c:57:a7:97:26:e9:35:9c:ba:8c:14:03 (ECDSA)
2018/04/24
crackle2.cims.nyu.edu 06:33:17:72:cf:45:b6:fc:51:4d:d5:69:33:1b:36:3e (RSA)
2a:74:88:ac:01:d0:6e:cf:9b:a6:a0:73:d2:b3:88:1f (ECDSA)
2018/04/24
crackle3.cims.nyu.edu

ad:41:d7:17:b0:23:31:71:91:43:27:c3:be:d5:5e:0a (RSA)
b8:44:3a:cb:8d:25:1c:59:f1:80:66:e0:e5:11:c9:e9 (ECDSA)

2018/04/24
crackle4.cims.nyu.edu 51:ef:0a:11:a7:2a:75:49:d0:45:e8:f6:3d:a9:c5:c1 (RSA)
3b:79:6f:76:f0:2d:b8:de:65:95:54:96:c0:76:0c:48 (ECDSA)
2018/04/24
crackle5.cims.nyu.edu 4e:3e:a9:5a:30:be:25:8c:84:70:4a:db:ad:2a:e8:e1 (ECDSA)
b5:c4:52:9d:a3:e2:9a:5e:d7:12:fa:0d:71:6f:f7:59 (RSA)
2018/04/24
crunchy1.cims.nyu.edu 30:8f:f8:40:e4:a5:ed:60:96:4b:e6:b7:90:20:86:a7 (RSA)
94:5e:c7:09:8a:9f:02:36:73:12:d3:43:cf:56:c7:eb (ECDSA)
2018/04/24
crunchy3.cims.nyu.edu a4:d1:8b:ba:0c:e9:24:0b:e6:96:ff:47:fc:61:d8:fb (RSA)
3e:e9:cb:be:5e:46:63:75:0a:f1:86:5f:c7:df:cf:d9 (ECDSA)
2018/04/24
crunchy5.cims.nyu.edu b1:8d:f5:56:b7:15:24:0b:8f:08:73:a5:04:0b:56:c2 (RSA)
d4:86:b1:2b:8a:ff:6b:7d:bf:86:86:7d:79:c4:9c:42 (ECDSA)
2018/04/24
crunchy6.cims.nyu.edu c7:6a:cb:4a:ac:e1:37:c2:3d:07:51:f0:02:95:60:3c (RSA)
2b:e4:5e:95:81:69:71:ff:64:f6:ba:9a:25:5d:60:61 (ECDSA)
2018/04/24
crunchy12.cims.nyu.edu 21:f2:7d:69:53:ab:a8:52:22:6b:f3:9f:44:c8:2d:f0 (RSA) 2018/04/24
cuda1.cims.nyu.edu 09:94:a1:fb:5d:8b:f1:b1:8c:ca:3c:7e:01:a3:86:8b (RSA)
45:d1:36:4f:d3:80:9b:5c:c5:87:cb:e0:c5:ab:a7:dc (ECDSA)
2018/04/24
cuda2.cims.nyu.edu 52:7c:73:4a:7c:17:51:af:1d:a0:80:3a:4a:f5:d6:23 (RSA)
bd:a8:f3:12:b4:99:97:ba:b8:9f:2d:2d:c9:af:b9:1c (ECDSA)
2018/04/24
cuda3.cims.nyu.edu f4:35:b7:5e:1b:f7:a8:1a:db:75:e4:1d:fc:cc:82:25 (RSA) 2018/04/24
cuda4.cims.nyu.edu 6f:0c:78:84:cd:1d:fe:bb:fd:49:fa:b4:74:95:d1:59 (RSA) 2018/04/24
cuda5.cims.nyu.edu dc:92:30:5b:06:f6:87:d8:35:7d:02:fc:63:51:4c:19 (RSA)
ed:54:31:13:5c:42:9f:0a:99:71:7b:23:19:b9:52:5c (ECDSA)
2018/04/24
linax1.cims.nyu.edu 71:63:c0:cc:63:06:9b:6a:25:a1:17:62:48:be:3f:8f (RSA) 2016/03/18
linax2.cims.nyu.edu 71:63:c0:cc:63:06:9b:6a:25:a1:17:62:48:be:3f:8f (RSA) 2016/03/18
linserv1.cims.nyu.edu f3:65:e8:a2:fa:d5:80:63:a5:97:35:5c:4d:0a:e6:3b (RSA)
3f:7d:5c:f3:3e:a4:af:64:6e:dd:ae:bc:56:f4:e7:57 (ECDSA)
2018/04/24
linserv2.cims.nyu.edu 5f:cf:79:de:bb:43:9a:9e:e3:25:21:48:f4:48:d6:ea (RSA) 2018/04/24
snappy1.cims.nyu.edu 99:68:0a:9d:f1:c1:b2:22:a6:bc:ab:20:f4:c2:ab:da (RSA)
1e:21:45:58:84:2a:c1:d0:50:de:fa:12:c2:3a:3c:51 (ECDSA)
2018/04/24
snappy2.cims.nyu.edu d4:65:f1:0f:ba:f3:61:c9:bc:bf:1b:e4:9e:89:12:e9 (RSA)
cc:1e:b8:ce:05:55:21:1e:02:ab:0c:00:20:a9:6e:06 (ECDSA)
2018/04/24
snappy3.cims.nyu.edu 13:48:91:ac:83:5e:39:ea:dc:54:34:9c:46:4a:67:64 (RSA)
c1:73:d8:f3:5c:ae:7d:ea:d8:b5:04:6b:76:45:b4:1a (ECDSA)
2018/04/24
snappy4.cims.nyu.edu 04:6e:49:ec:9d:5e:9a:3a:85:09:80:02:8f:cf:4d:4b (RSA)
d0:d7:46:3e:55:83:7b:4d:9d:bb:e4:25:ab:d3:47:2c (ECDSA)
2018/04/24
snappy5.cims.nyu.edu fb:8d:a5:71:a5:13:83:e5:d8:88:0f:19:07:e3:f4:70 (RSA)
a6:65:e5:3d:c9:06:86:56:18:68:07:9f:a9:4f:92:6b (ECDSA)
2018/04/24

 

If the fingerprints provided do not match those listed above, you should immediately contact helpdesk@cims.nyu.edu.