Different between alive and active host

[Man8]

From Credential-less host Discovery, it mentioned that "the Shazzam probe scans a host that is alive but not active".

How to define alive and active?

What is the different between alive and active?

https://docs.servicenow.com/bundle/newyork-it-operations-management/page/product/discovery/reference...

[Fares K]

Depending on what kind of device you are trying to discover.

The Shazzam will try a large panel of ports and if you've configured your infrastructure to be discovered, you should have fulfilled the prerequisites (user rights and network ports open).

The ports are the classic ports such as SSH, WMI, SNMP...etc.

You can find more info on this link here.

[adilrathore]

I assume if a port refuses connection that means that it responded but is not open for connectivity. So we are able to sense the port but it is refusing connections.

[Ashutosh Munot1]

Hi,

Now if we find these or ANY other ports checked and they gave us a response 'other' than open then we can consider them 'alive', there is something there but we cant talk to it.   Friends here will hear a familiar line here.. think of walking upto a house and checking to see if a door with the label 'port 22' is open.   If it opens, great, Im 'Actively' going to try and discover it.   If I turn that door handle and a grumpy old man yells from behind ..."get off my lawn!" , well we are being 'refused' in the response so someone is there, its 'Alive', but we aren't invited back   ...

https://community.servicenow.com/community?id=community_question&sys_id=51330be1dbd8dbc01dcaf3231f96...

Thanks,
Ashutosh

[Inactive_Us2002]

Alive : No ports are open for that particular machine.

Ex: If you want to classify port 22 but the port is closed then it unable to classify[It refuses].

Active : Atleast one of the port is opened.

Ex: Same as the above if you want to classify port 22 then you can able to classify because the port is open.

If my answer helps you to clarify your doubt please mark it as helpful.