Configure Single Sign-on in VMware vCenter 5.5

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After you’ve installed vCenter server, you might want to authenticate vCenter sign on with Active Directory user accounts. To do so, you need to configure single sign-on in VMware vCenter 5.5, you also need to add user accounts/groups in vCenter.

Configure Single Sign-on in VMware vCenter 5.5

Step 1. Open vSphere web client and login with administrator@vsphere.local user account.

Configure Single Sign-on in VMware vCenter 5.5

Step 2. Click Administration on the navigation pane. Expand Single-Sign on and click Configuration. Select Identity sources tab.

SSO Configuration

Step 3. Click Add. Choose Active Directory (Integrated Windows Authentication) on Identity source type option as this is Windows based vCenter server. The domain name will be auto populated. Choose use machine account. Click OK.


Step 4. You can view the identity source on the list as shown below. Now select the domain and click icon to set it as default domain for vCenter. Read the warning and click OK.

set as default domain

Step 5. Now go to, Users and Groups tab on the same navigation pane. Then select Groups tab. Click Administrators group as shown below. Under group members, click Add to add user accounts.

add users

Step 6. Choose the domain from drop down. Select the user, in this case, Administrator. Then click Add. Click OK.

add administrator

Step 7. Now, navigate to Home > vCenter > Inventory Lists > vCenter Servers. Select the vCenter server. Select Manage tab and click Permission tab again. Click Add to add domain user to provide full permission to this vCenter server.

add permission to vCenter

Step 8. Add the domain user account, choose Administrator as assigned role and click OK.

add permission

You can now login with domain administrator account. If you are getting Cannot Parse Group Information error while logging in with AD Administrator account then try this fix.

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Bipin is a freelance Network and System Engineer with expertise on Cisco, Juniper, Microsoft, VMware, and other technologies. You can hire him on UpWork. Bipin enjoys writing articles and tutorials related to Network technologies. Some of his certifications are, MCSE:Messaging, JNCIP-SEC, JNCIS-ENT, and others.

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