How to enable\Disable domain users Application in PC's to connect SQL Server 2008 r2

I have some PCs have APP connect to SQl server
How to enable\Disable this APP to connect  SQL Server 2008 r2 for some "Domain users's"
Hani M .S. Al-habshiContributor as IT ExpertAsked:
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.

Go to SQL Management Studio and assign proper rights for your database. Usually we use groups in active Directory. You can assign users to group with rights to access SQL data and they will have access. Other ones will have no access
EugeneZ ZhitomirskySQL SERVER EXPERTCommented:
if your users have sql login
you can do this by using this command

ALTER LOGIN youruserlogin ENABLE

Hani M .S. Al-habshiContributor as IT ExpertAuthor Commented:
1-Application connect to SQL server ?
2-this Application installed on uses PC's ?
how i prevent this application to connect to SQl server from any user PC ?
How this application connects to SQL server? With stored account?
EugeneZ ZhitomirskySQL SERVER EXPERTCommented:
you can set your sql server firewall to restrict  to just approved Servers\PC access

Configure the Windows Firewall to Allow SQL Server Access

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
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

From novice to tech pro — start learning today.