The ifix is used to fix JR38108, proxy + ssl problem.
To fix the problem, you need add configurable JVM system properties named com.ibm.ws.http.ProxyTunnelHosts, the value of this property is a comma-separated list of proxy host names which using the tunnel. When the com.ibm.ws.http.ProxyTunnelHosts has been defined, then  the ralative uri will be used for request message. Otherwise, absolute url will be used when proxy enable, and relative uri  will be used when proxy disable. 
The configuration steps at administrative console
   1. Open the administrative console.
   2. Open the WebSphere application servers page and select Your server definition > Java and Process Management > Process Definition > Java Virtual Machine > Custom properties > New.
   3. In the Name field, type or paste com.ibm.ws.http.ProxyTunnelHosts.
   4. Provide a comma-separated list of proxy host names which using the tunnela in Value Field and click Apply and OK. 
   5. Restart your server


Directions to apply fix:  
Instalation Manager to be used from v7 onwards to install any iFixes to the product. IM get insatlled when you install  your product.
In order to install the iFix  you need to do the following:

1) 
	- Unzip the iFix to a new directory
	- Start Installation Manager
	- Click on File -> Preferences
    - Click on "Add Repository"
    - Browse to the directory you just unzipped and select the repository.config file within that directory
    - Close preferences

2) Shutdown WebSphere Process Server. It is important that you perform a controlled and complete shutdown of the server to ensure that all transactions have completed, before installing the fix.

3) Start Installation Manager if closed after stpe #1.
   - click on "Update"
   - Select the installation you want to update and then it should automatically offer you the iFix for the installation 
   - Select iFix for installation.
   - Click "Update" to install the iFix.
   
4) Restart WebSphere Process Server.

Directions to remove fix:  

Example:  If your system has fix1, fix2, and fix3 applied in that order and fix2 is to be removed, fix3 must be removed first, then fix2 may be removed

1) Shutdown WebSphere Process Server. It is important that you perform a controlled and complete shutdown of the server to ensure that all transactions have completed, before installing the fix.

2> Start Installation Manager
   - click on "Uninstall"
   - Select the installation you want to update and then it should automatically offer you the iFix to be uninstalled for the installation 
   - Select iFix for uninstallation.
   - Click "Uninstall" to uninstall the iFix.
  
3) Restart WebSphere Process Server.

Directions to re-apply fix:  
1) Shutdown WebSphere. It is important that you perform a controlled and complete shutdown of the server to ensure that all transactions have completed, before installing the fix.

2) Run Installation Manager for re-applying the iFix.

3) Restart WebSphere Process Server.