New server WHM -- HOST-0 ??

Hi,
i just receive my new server( WHM 9.9.3 cPanel 9.9.6-R10)
in Edit Setup i see 2 new option that i did not see on my other servers !
1- ADDR-0
2-HOST-0
what sre these options ADDR-0 was set to main ip address
and HOST-0 was set to defalt host name from data center
now i change the hostname what i do not know what do with HOST-0 , can i set it just like hostname?

thanks
payam

 

 

 

 

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