UIM - Secondary hub connectivity problem

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)
• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

Facing problem in connectivity with primary hub from secondary hub via tunnel for new install of secondary hub 

Tunnel Port is open as per UIM firewall documentation

Telnet is working  from secondary hub to primary hub on tunnel port

 

Environment

Release : 20.3/ 20.4

Component : UIM - HUB

Resolution

The remote hub connected via tunnel to Primary hub which has a NAT Ip listening on port 443 

Wildcard tunnel certificate used for tunnel 

Can see errors as below

hub: (ssl_server_wait_handshake) - SSL_accept error from host=xxx.xxx.xxx.xxx d=4000, err=-1, ssl_err=5(System Call Failure. Check errno.), errno=0(The operation completed successfully.

 

Root cause was that the domain name specified on the new secondary hub was not matching 

The Nimsoft domain name which is specified during the secondary hub install is case sensitive 

Example on Primary hub 

<hub>
   domain = SUPERGROUP
   hubname = xxx

and Secondary hub was as below for which the case does not match  the domain name case existing on Primary hub 

<hub>
   domain = Supergroup
   hubname = xxx

 

Uninstall and reinstall the Nimbus infrastructure on Remote hub with correct case sensitivity for domain name and reconfigure the tunnel certificates

After this the hub tunnel was established successfully