what is nt authority\network service account?

I'm setting up WSUS server and in the docs the nt authority\network service account is referenced?  I'm not sure if this is a seperate account or an alias for another.  Don't know where to go from here.
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

It is a separete account.  When you choose your update services properties, and goto the logon account, choose THIS ACCOUNT and put in NT AUTHORITY\NetworkService and the appropriate password.

I have mine set as a domain administrator, i think because we had a problem using the network service account
Mohammed HamadaSenior IT ConsultantCommented:
The NT AUTHORITY/NETWORK SERVICE database user is part of the IIS Worker Process Group. In the SQL Server Login Properties not only click on add "ASPNET" to add this user as a Login for the selected database. You'll also have to give rights to the "NT AUTHORITY/NETWORK SERVICE" user, which was the user that your ASP.NET web application tried to use to access your database ..

Referenced here...

Have a look At this threads too..

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Thank you  rmckolay may it all run smoothly for you.
Cheers Merete
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Operating Systems

From novice to tech pro — start learning today.