Discovery Fundamentals Kingston- Matt Coulter 16th July

[matt_coulter]

Hi,

Welcome to Kingston Discovery Fundamentals.

Please take a few moment s to introduce yourself with a comment below.

Include your

Name,

Company ,

Role,

Why Discovery and most important ;

What do you hope to take away from the training?

Chat to you all soon,

Matt

[Soon Eng Hoe]

Name: Soon Eng Hoe

Company: CapitaLand Business Services Pte Ltd

Role: IT Manager

Why Discovery and most important:

What do you hope to take away from the training?

My company did a ITOM POC a few weeks back. Would like to have a better understand on how discovery is implemented.

Chat to you all soon,

[Tone2]

Hi, I'm Tony Proudlove from Allianz.

I've recently taken on a role to run discovery for a project to consolidate all our APAC data centres.

I'm hoping this course will give me the skills I need to do this effectively.

[Zoey]

Hi, I am Zoey from ST Engineering. 

Role: System Administrator

We have an upcoming Discovery Implementation and would like to know more about the detailed implementation steps, security contraints and etc.

[Zoey]

Hi Matt, 

Questions:

1. For MID server setup the docs say needing high ports needed to be opened. can I check if the is ingress towards the MID server?

2. For Linux MID server does it support Windows machines discovery?

3. Is there any possibility that my MID Server is going to be down after I reset my admin password for the instance?

4. Will there be any impact to the MID Servers or requires any reconfiguration if I upgrade my instance?

Thanks very much!

[matt_coulter]

Hi Zoey a few notes

1 The mid server does utilize many ports to probe systems. Here are a few good articles

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

You specifically mentioned High port and I assume you were referring to the RPC redirect to dynamic ports as detailed below utilizing DCOM.

Windows Server 2008 and Vista: 49152-65535 for both TCP and UDP.

Rpc is commonly utilized in the network and there is some good advice for hardening the port.

https://technet.microsoft.com/en-us/library/dd632946.aspx

With that said please see community article below also discussing the issue.

https://community.servicenow.com/community?id=community_question&sys_id=bf8293a1db101fc01dcaf3231f9619bf2

2. You will need a windows server with .net and powershell to pullty service windows discovery. Linux could pick up on network (IP) information0 Id recommend you have dedicated mid servers for each.

3. Mid servers specific midserver accounts with mid_server role and not effected by admin.

4. When upgrading you should also consider upgrading the Mid Server more info no real reconfiguration required -> https://docs.servicenow.com/bundle/jakarta-servicenow-platform/page/product/mid-server/concept/c_UpgradeAndTestMIDServer.html

[Zoey]

Hi Matt,

This is an actual scenario happening in my company's environment. 

When we were discovering computers, we noticed that Discovery is not pulling in Lenovo computer model names/numbers as expected. Dell machines populate Model ID as follows e.g. Dell Inc. Precision Tower 7810 which is logical/great. Lenovo CIs on the other hand populate model IDs as e.g. Lenovo 10A8S2D100. 

There is a similar community post about this and I just want to check if there's any fix/workaround for this issue.

https://community.servicenow.com/community?id=community_question&sys_id=267fbea9db58dbc01dcaf3231f961977