SUM what UTM ID show in dashboard ?

It's the GUID, a unique code for every UTM.  Why would you want to change it?

Beacause i have more that 50 UTM`s with the same GUID. And all of them can`t connect to one SUM server.
In UTM i have next err :

SSL-connect: 'IO::Socket::INET configuration
or 
starting '/usr/sbin/acc-agent.plx'
or 
2014:03:28-16:32:01 astaro device-agent[32372]: Not reporting inotify: no role
2014:03:28-16:32:01 astaro device-agent[32372]: timer2 -> module 1 not executing: denied by role
2014:03:28-16:32:01 astaro device-agent[32372]: timer2 -> module 2 not executing: denied by role
2014:03:28-16:32:01 astaro device-agent[32372]: timer2 -> module 3 not executing: denied by role
2014:03:28-16:32:01 astaro device-agent[32372]: timer2 -> module 4 not executing: denied by role
2014:03:28-16:32:01 astaro device-agent[32372]: timer2 -> module 5 not executing: denied by role
2014:03:28-16:32:01 astaro device-agent[32372]: timer2 -> module 6 not executing: denied by role
2014:03:28-16:32:01 astaro device-agent[32372]: timer2 -> module 7 not executing: denied by role
2014:03:28-16:32:06 astaro device-agent[32372]: timer2 -> module 1 not executing: denied by role
2014:03:28-16:32:06 astaro device-agent[32372]: timer2 -> module 2 not executing: denied by role
2014:03:28-16:32:06 astaro device-agent[32372]: timer2 -> module 3 not executing: denied by role
2014:03:28-16:32:06 astaro device-agent[32372]: timer2 -> module 4 not executing: denied by role
2014:03:28-16:32:06 astaro device-agent[32372]: timer2 -> module 5 not executing: denied by role
2014:03:28-16:32:06 astaro device-agent[32372]: timer2 -> module 6 not executing: denied by role
2014:03:28-16:32:06 astaro device-agent[32372]: timer2 -> module 7 not executing: denied by role
2014:03:28-16:32:06 astaro device-agent[32372]: 1 is not connected. Trying to connect

i have found right command to change it :

you're right. SUM identifies the UTMs by a GUID, which is called "system_id". You can reset this system_id on the cloned machine by running the following command on the UTM (as root):

cc reset_system_id

when i reset system id in all my gateways , it all connect to UTM immediately. And all error gone.

Yes, had a customer with the same issue with 6 UTMs... be aware that if you are using Sophos Endpoint, that changing that ID will affect your client deployment (badly) -- so if using Sophos UTM Endpoint, consult Sophos Support before executing that command.

Hi,

thanks for this useful information. Does cc reset_system_id do anything further to changing the guid? Do i have to expect any loss of connectivity? 

Regards

Sebastian

I used the reset button in webadmin without any bad impact. The good thing is, that the utm is now able to connect to my sum again.

@ Bob: In this case, i probably configured this machine by restoring a backup without site specific data.... 

But another case closed, thanks!

I used the reset button in webadmin without any bad impact. The good thing is, that the utm is now able to connect to my sum again.

@ Bob: In this case, i probably configured this machine by restoring a backup without site specific data.... 

But another case closed, thanks!