K2 Site - Lookback Host Headers

[PraveenaK2]

K2 five 5.2 installation - K2 site gives the below warning.

This machine does not allow loopback HTTP connection on hostnames other than localhost

Repairing this task makes security related changes to your system that will not be reverted back when uninstalling the product.

Find attached image. Please address me to solve this issue.

[paulk]

Choose the Repair error option.

If you are worried about what it will do then you can just click the information link at the bottom of the info panel to get a description of what it is doing.

Cheers

[PraveenaK2 · Accepted solution]

The below action solved my problem.

Re-enable the behavior that exists in Windows Server  by setting the DisableLoopbackCheck registry entry in theHKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa registry subkey to 1. To set the DisableLoopbackCheck registry entry to 1, follow these steps on the client computer:

1. Click Start, click Run, type regedit, and then click OK.

2. Locate and then click the following registry subkey:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa

3. Right-click Lsa, point to New, and then click DWORD Value.

4. Type DisableLoopbackCheck, and then press ENTER.

5. Right-click DisableLoopbackCheck, and then click Modify.

6. In the Value data box, type 1, and then click OK.

7. Exit Registry Editor.

8. Restart the computer.