Error: "unable to establish master SSH connection" During NetScaler GSLB Sync
Article ID: CTX219419
Updated On:
Description
NetScaler GSLB sync fails with the following error:
unable to establish master SSH connection
sync gslb config —preview
Sync Time: Mar 22 201S 0:31: sq
Retrieving local site info: The authenticity of host '127.0.0.1 (127.0.0.1)' can't be established.
RSA key fingerprint is xxxxxxxxxxxxxxxxxxxxxxxx
Are you Sure want to continue connecting ? unable to establish master SSH connection:
print ( ) on closed filehandle ERR FILE at script/ syncgslbccnfig.pl line 81.
Aborting .
Done
Resolution
The following command was used on both the appliances:
show ns param
and see if internaluserlogin is disabled as shown below:
Nsinternal User Login: DISABLED
To resolve this issue change the NetScaler parameters to set internal user login to ENABLED.
> set ns param -internaluserlogin ENABLED
Done
internaluserlogin:
Enables/disables the internal user from logging in to the appliance.
Problem Cause
"internaluserlogin" parameter is disabled on the NetScaler which makes Netscaler to unable to communicate with itself and also prevented file synchronization between the HA pairs.Issue/Introduction
