IBM Support

PH47286: LOGGING %H IS NOT AFFECTED BY MOD_REMOTEIP

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APAR status

  • Closed as program error.

Error description

  • When the internal representation of a client IP address is
changed by mod_remoteip, the result is seen in %a (remote
address) but not %h (remote hostname if HostnameLookups ON).

Even when HostnameLookups are off, %h will have the underlying
TCP peer IP address rather than the updated IP address provided
by the mod_remoteip trusted proxy.

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED:  All users of IBM HTTP Server                *
****************************************************************
* PROBLEM DESCRIPTION: When logging '%h' as used in the        *
*                      default                                 *
*                      log formats, respect changes made by    *
*                      mod_remoteip processing.                *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
When logging '%h' as used in the default log formats, respect
changes made by mod_remoteip processing.

    



Problem conclusion


    

  • IBM HTTP Server was updated to respect changes made by
mod_remoteip when using the '%h' log format specifier.

The fix for this APAR is targeted for inclusion in IBM HTTP
Server  fix packs 8.5.5.23 and 9.0.5.13.
For more information, see 'Recommended Updates for WebSphere
Application Server':
https://www.ibm.com/support/pages/node/715553

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PH47286
    • 

  • Reported component name
    IBM HTTP SERVER
    • 

  • Reported component ID
    5724J0801
    • 

  • Reported release
    900
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2022-06-17
    • 

  • Closed date
    2022-08-18
    • 

  • Last modified date
    2022-08-18
    • 





    

  • APAR is sysrouted FROM one or more of the following:
    

    • 

  • APAR is sysrouted TO one or more of the following:
    

    • 



Fix information


    

  • Fixed component name
    IBM HTTP SERVER
    • 

  • Fixed component ID
    5724J0801
    • 



Applicable component levels


    








      
              
                            

              

              [{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEQTJ","label":"IBM HTTP Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.0","Line of Business":{"code":"LOB45","label":"Automation"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            19 August 2022
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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