Microsoft IIS: Disabling the SSL v3 Protocol

Microsoft IIS: How to Disable the SSL v3 Protocol

1. Open the Registry Editor and run it as administrator.
   1. On the Start screen type regedit.exe.
   2. Right-click on regedit.exe and click Run as administrator.
2. In the Registry Editor window, go to:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\Schannel\Protocols\

   

1. In the navigation tree, right-click on Protocols, and in the pop-up menu, click New > Key.
2. Name the key, SSL 3.0.
3. In the navigation tree, right-click on the new SSL 3.0 key that you just created, and in the pop-up menu, click New > Key.
4. Name the key, Client.
5. In the navigation tree, right-click on the new SSL 3.0 key again, and in the pop-up menu, click New > Key.
6. Name the key, Server.
7. In the navigation tree, under SSL 3.0, right-click on Client, and in the pop-up menu, click New > DWORD (32-bit) Value.
8. Name the value DisabledByDefault.
9. In the navigation tree, under SSL 3.0, select Client and then, in the right pane, double-click the DisabledByDefault DWORD value.
10. In the Edit DWORD (32-bit) Value window, in the Value Data box change the value to 1 and then, click OK.
11. In the navigation tree, under SSL 3.0, right-click on Server, and in the pop-up menu, click New > DWORD (32-bit) Value.
12. Name the value Enabled.
13. In the navigation tree, under SSL 3.0, select Server and then, in the right pane, double-click the Enabled DWORD value.
14. In the Edit DWORD (32-bit) Value window, in the Value Data box leave the value at 0 and then, click OK.
15. Restart your Windows server.You have successfully disabled the SSL v3 protocol.