Eagle E5MS Remote Host Identification Has Changed Error When SSH to Host

Asset ID:	1-72-2014386.1
Update Date:	2016-03-16
Keywords:

Solution Type Problem Resolution Sure

Solution 2014386.1 : Eagle E5MS Remote Host Identification Has Changed Error When SSH to Host

Applies to:

Oracle Communications EAGLE (Software) - Version EAGLE 42.x and later
Information in this document applies to any platform.

Symptoms

Unable to Telnet Eagle STP via netboss due to following error:

# ssh -fNL 5400#:localhost:23 10.103.##.#; telnet localhost 5400#
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ 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 the DSA host key has just been changed.
The fingerprint for the DSA key sent by the remote host is
aa:bb:cc:cc:cc:cc:cc:cc:cc.
Please contact your system administrator.

Cause

- If the IPSM card is rebooted, replaced or booted on its own, the SSH host_key will change and new ssh host_keys will be generated.

- The OAM IP security feature is enable and ssh tunnel has to be established to connect to the system on any IP terminal (greater than 16).

The following features have been permanently enabled:

Feature Name Partnum Status Quantity
EAGLE OA&M IP Security 893400001 on ----

- Two EMSALM terminal type defined on the EAGLE STP.

Solution

Resolved the issue by executing keygen command:

netboss-p[netboss]/opt/home/netboss/.ssh% ssh-keygen -R xxx.xx.xxx.xxx
netboss-p[netboss]/opt/home/netboss/.ssh% ssh -fNL 54001:localhost:23 xx.xxx.xx.x; telnet localhost 5400#
The authenticity of host '10.103.##.# (10.103.##.#)' can't be established.
DSA key fingerprint is aa:bb:cc:cc:cc:cc:cc:cc:cc
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'xx.xxx.xx.x' (DSA) to the list of known hosts.
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Connected.....
Welcome to Eagle.
Select a terminal from the list below:
(18,19,20,23,24)
>
Terminal entry timeout - session reset message.

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