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    Hello,<br>
    <br>
    update of yum-rhn-plugin package on your clients should resolve your
    problems.<br>
    Additionally putting [1] into
    /etc/httpd/conf.d/aa-spacewalk-server.conf can serve as temporary
    workaround.<br>
    <br>
    Tomas<br>
    <br>
    [1] - <a
href="https://raw.githubusercontent.com/spacewalkproject/spacewalk/master/backend/apache-conf/aa-spacewalk-server.conf">https://raw.githubusercontent.com/spacewalkproject/spacewalk/master/backend/apache-conf/aa-spacewalk-server.conf</a><br>
    <br>
    <div class="moz-cite-prefix">On 08/16/2017 11:28 AM, Cody Skidmore
      wrote:<br>
    </div>
    <blockquote cite="mid:4C5EBA82-210C-4E5A-A395-D9A1E6AF7747@duke.edu"
      type="cite">
      <meta http-equiv="Content-Type" content="text/html;
        charset=windows-1252">
      <div class="">I ran into this just a couple of hours ago. While
        this applies to Apache 2.4, the HTTPProtocolOptions unsafe
        config worked for my Spacewalk 2.3 instance running on CentOS 6
        with Apache 2.2.</div>
      <div class=""><a moz-do-not-send="true"
          href="https://bugzilla.redhat.com/show_bug.cgi?id=1445428#c2"
          class="">https://bugzilla.redhat.com/show_bug.cgi?id=1445428#c2</a></div>
      <div class=""><br class="">
      </div>
      Cody Skidmore
      <div class="">Fuqua School of Business</div>
      <div class="">Duke University</div>
      <div class=""><br class="">
      </div>
      <div class="">
        <div>
          <blockquote type="cite" class="">
            <div class="">On Aug 16, 2017, at 5:06 AM, Matthias Gruber
              <<a moz-do-not-send="true"
                href="mailto:MGruber@metzler.com" class="">MGruber@metzler.com</a>>
              wrote:</div>
            <br class="Apple-interchange-newline">
            <div class=""><font class="" size="2" face="sans-serif">Hi!</font>
              <br class="">
              <br class="">
              <font class="" size="2" face="sans-serif">We have a
                SpaceWalk 2.5 with several proxy running, all on CentOS
                6.9
              </font><br class="">
              <br class="">
              <font class="" size="2" face="sans-serif">After patching
                the first two Proxies this week, the clients which are
                attached to this updated proxies  doesnt receiving any
                updates anymore</font>
              <br class="">
              <br class="">
              <font class="" size="2" face="sans-serif">Simply getting:</font>
              <br class="">
              <font class="" size="2" face="Courier">root@lvasp-uimvmgmt
                ~]# yum repolist</font>
              <br class="">
              <font class="" size="2" face="Courier">Loaded plugins:
                fastestmirror, rhnplugin</font>
              <br class="">
              <font class="" size="2" face="Courier">This system is
                receiving updates from RHN Classic or Red Hat Satellite.</font>
              <br class="">
              <font class="" size="2" face="Courier">Loading mirror
                speeds from cached hostfile</font>
              <br class="">
              <font class="" size="2" face="Courier">repo id            
                                                                       
                  repo name                                            
                                         status</font>
              <br class="">
              <font class="" size="2" face="Courier">clone-basis-chnl-os-centos-6
                                                               
                 clone-basis-chnl-os-centos-6                          
                                        0</font>
              <br class="">
              <font class="" size="2" face="Courier">clone-chnl-os-centos-6-base
                                                                 
                clone-chnl-os-centos-6-base                            
                                       0</font>
              <br class="">
              <font class="" size="2" face="Courier">clone-chnl-os-centos-6-update_2017-08
                                                       
                clone-chnl-os-centos-6-update_2017-08                  
                                       0</font>
              <br class="">
              <font class="" size="2" face="Courier">clone-chnl-spacewalk-25-client-centos-6
                                                     
                clone-chnl-spacewalk-25-client-centos-6                
                                       0</font>
              <br class="">
              <font class="" size="2" face="Courier">repolist: 0</font>
              <br class="">
              <font class="" size="2" face="Courier">[root@lvasp-uimvmgmt
                ~]#</font> <br class="">
              <br class="">
              <font class="" size="2" face="sans-serif">a yum update
                delivers</font> <br class="">
              <font class="" size="2" face="Courier">[root@lvasp-uimvmgmt
                ~]# yum update</font>
              <br class="">
              <font class="" size="2" face="Courier">Loaded plugins:
                fastestmirror, rhnplugin</font>
              <br class="">
              <font class="" size="2" face="Courier">This system is
                receiving updates from RHN Classic or Red Hat Satellite.</font>
              <br class="">
              <font class="" size="2" face="Courier">Setting up Update
                Process</font> <br class="">
              <font class="" size="2" face="Courier">Loading mirror
                speeds from cached hostfile</font>
              <br class="">
              <font class="" size="2" face="Courier">Error: Cannot
                retrieve repository metadata (repomd.xml) for
                repository: clone-basis-chnl-os-centos-6. Please verify
                its path and try again</font>
              <br class="">
              <font class="" size="2" face="Courier">[root@lvasp-uimvmgmt
                ~]#</font> <br class="">
              <br class="">
              <font class="" size="2" face="sans-serif">However, the
                only change on the proxy for this example between two
                month, the privious it was working, are patches</font>
              <br class="">
              <br class="">
              <font class="" size="2" face="Courier">[root@lvasp-swp043
                ~]# yum history list</font>
              <br class="">
              <font class="" size="2" face="Courier">Loaded plugins:
                fastestmirror, rhnplugin</font>
              <br class="">
              <font class="" size="2" face="Courier">This system is
                receiving updates from RHN Classic or Red Hat Satellite.</font>
              <br class="">
              <font class="" size="2" face="Courier">ID     | Login user
                              | Date and time    | Action(s)      |
                Altered</font>
              <br class="">
              <font class="" size="2" face="Courier">-------------------------------------------------------------------------------</font>
              <br class="">
              <font class="" size="2" face="Courier">    17 | System
                <unset>           | 2017-08-15 04:15 | E, I, U    
                   |   13 EE</font>
              <br class="">
              <font class="" size="2" face="Courier">    16 | System
                <unset>           | 2017-07-11 04:16 | E, I, U    
                   |   16 EE</font>
              <br class="">
              <font class="" size="2" face="Courier">....</font> <br
                class="">
              <br class="">
              <font class="" size="2" face="Courier">[root@lvasp-swp043
                ~]# yum history info 17</font>
              <br class="">
              <font class="" size="2" face="Courier">Loaded plugins:
                fastestmirror, rhnplugin</font>
              <br class="">
              <font class="" size="2" face="Courier">This system is
                receiving updates from RHN Classic or Red Hat Satellite.</font>
              <br class="">
              <font class="" size="2" face="Courier">Transaction ID : 17</font>
              <br class="">
              <font class="" size="2" face="Courier">Begin time     :
                Tue Aug 15 04:15:41 2017</font>
              <br class="">
              <font class="" size="2" face="Courier">Begin rpmdb    :
                473:93beb7d664b07e2e33a54e88e6b10e37da9ce7ed</font>
              <br class="">
              <font class="" size="2" face="Courier">End time       :  
                         04:17:13 2017 (92 seconds)</font>
              <br class="">
              <font class="" size="2" face="Courier">End rpmdb      :
                473:e19a7257b45854883ad4d129c53b10530b3eb870</font>
              <br class="">
              <font class="" size="2" face="Courier">User           :
                System <unset></font> <br class="">
              <font class="" size="2" face="Courier">Return-Code    :
                Success</font> <br class="">
              <font class="" size="2" face="Courier">Command Line   : -y
                update</font> <br class="">
              <font class="" size="2" face="Courier">Transaction
                performed with:</font> <br class="">
              <font class="" size="2" face="Courier">    Installed    
                rpm-4.8.0-55.el6.x86_64                      
                @anaconda-CentOS-201605220104.x86_64/6.8</font>
              <br class="">
              <font class="" size="2" face="Courier">    Installed    
                yum-3.2.29-81.el6.centos.noarch              
                @clone-chnl-os-centos-6-base</font>
              <br class="">
              <font class="" size="2" face="Courier">    Installed    
                yum-metadata-parser-1.1.2-16.el6.x86_64      
                @anaconda-CentOS-201605220104.x86_64/6.8</font>
              <br class="">
              <font class="" size="2" face="Courier">    Installed    
                yum-plugin-fastestmirror-1.1.30-40.el6.noarch
                @clone-chnl-os-centos-6-base</font>
              <br class="">
              <font class="" size="2" face="Courier">    Installed    
                yum-rhn-plugin-2.5.5-1.el6.noarch            
                @spacwalkintermediateclientrepo</font>
              <br class="">
              <font class="" size="2" face="Courier">Packages Altered:</font>
              <br class="">
              <font class="" size="2" face="Courier">    Updated
                bind-libs-32:9.8.2-0.62.rc1.el6_9.2.x86_64      
                 @clone-chnl-os-centos-6-update_2017-06</font>
              <br class="">
              <font class="" size="2" face="Courier">    Update        
                   32:9.8.2-0.62.rc1.el6_9.4.x86_64      
                 @clone-chnl-os-centos-6-update_2017-08</font>
              <br class="">
              <font class="" size="2" face="Courier">    Updated
                bind-utils-32:9.8.2-0.62.rc1.el6_9.2.x86_64      
                @clone-chnl-os-centos-6-update_2017-06</font>
              <br class="">
              <font class="" size="2" face="Courier">    Update        
                    32:9.8.2-0.62.rc1.el6_9.4.x86_64      
                @clone-chnl-os-centos-6-update_2017-08</font>
              <br class="">
              <font class="" size="2" face="Courier">    Updated
                httpd-2.2.15-59.el6.centos.x86_64                
                @clone-chnl-os-centos-6-base</font>
              <br class="">
              <font class="" size="2" face="Courier">    Update      
                 2.2.15-60.el6.centos.4.x86_64              
                @clone-chnl-os-centos-6-update_2017-08</font>
              <br class="">
              <font class="" size="2" face="Courier">    Updated
                httpd-tools-2.2.15-59.el6.centos.x86_64          
                @clone-chnl-os-centos-6-base</font>
              <br class="">
              <font class="" size="2" face="Courier">    Update        
                     2.2.15-60.el6.centos.4.x86_64        
                @clone-chnl-os-centos-6-update_2017-08</font>
              <br class="">
              <font class="" size="2" face="Courier">    Erase  
                kernel-2.6.32-642.11.1.el6.x86_64                
                @clone-chnl-os-centos-6-update_2016-12</font>
              <br class="">
              <font class="" size="2" face="Courier">    Install
                kernel-2.6.32-696.6.3.el6.x86_64                
                 @clone-chnl-os-centos-6-update_2017-08</font>
              <br class="">
              <font class="" size="2" face="Courier">    Updated
                kernel-doc-2.6.32-696.3.2.el6.noarch            
                 @clone-chnl-os-centos-6-update_2017-07</font>
              <br class="">
              <font class="" size="2" face="Courier">    Update        
                    2.6.32-696.6.3.el6.noarch            
                 @clone-chnl-os-centos-6-update_2017-08</font>
              <br class="">
              <font class="" size="2" face="Courier">    Updated
                kernel-firmware-2.6.32-696.3.2.el6.noarch        
                @clone-chnl-os-centos-6-update_2017-07</font>
              <br class="">
              <font class="" size="2" face="Courier">    Update        
                         2.6.32-696.6.3.el6.noarch        
                @clone-chnl-os-centos-6-update_2017-08</font>
              <br class="">
              <font class="" size="2" face="Courier">    Updated
                mod_ssl-1:2.2.15-59.el6.centos.x86_64            
                @clone-chnl-os-centos-6-base</font>
              <br class="">
              <font class="" size="2" face="Courier">    Update        
                 1:2.2.15-60.el6.centos.4.x86_64          
                @clone-chnl-os-centos-6-update_2017-08</font>
              <br class="">
              <font class="" size="2" face="Courier">    Updated
                perf-2.6.32-696.3.2.el6.x86_64                  
                 @clone-chnl-os-centos-6-update_2017-07</font>
              <br class="">
              <font class="" size="2" face="Courier">    Update      
                2.6.32-696.6.3.el6.x86_64                  
                 @clone-chnl-os-centos-6-update_2017-08</font>
              <br class="">
              <font class="" size="2" face="Courier">    Updated
                procps-3.2.8-45.el6.x86_64                      
                 @clone-chnl-os-centos-6-base</font>
              <br class="">
              <font class="" size="2" face="Courier">    Update        
                3.2.8-45.el6_9.1.x86_64                  
                 @clone-chnl-os-centos-6-update_2017-08</font>
              <br class="">
              <font class="" size="2" face="Courier">    Updated
                selinux-policy-3.7.19-307.el6.noarch            
                 @clone-chnl-os-centos-6-base</font>
              <br class="">
              <font class="" size="2" face="Courier">    Update        
                        3.7.19-307.el6_9.2.noarch        
                 @clone-chnl-os-centos-6-update_2017-08</font>
              <br class="">
              <font class="" size="2" face="Courier">    Updated
                selinux-policy-targeted-3.7.19-307.el6.noarch    
                @clone-chnl-os-centos-6-base</font>
              <br class="">
              <font class="" size="2" face="Courier">    Update        
                                 3.7.19-307.el6_9.2.noarch
                @clone-chnl-os-centos-6-update_2017-08</font>
              <br class="">
              <font class="" size="2" face="Courier">Scriptlet output:</font>
              <br class="">
              <font class="" size="2" face="Courier">   1 warning:  
                 erase unlink of
                /lib/modules/2.6.32-642.11.1.el6.x86_64/modules.order
                failed: No such file or directory</font>
              <br class="">
              <font class="" size="2" face="Courier">   2 warning:  
                 erase unlink of
                /lib/modules/2.6.32-642.11.1.el6.x86_64/modules.networking
                failed: No such file or directory</font>
              <br class="">
              <font class="" size="2" face="Courier">   3 warning:  
                 erase unlink of
                /lib/modules/2.6.32-642.11.1.el6.x86_64/modules.modesetting
                failed: No such file or directory</font>
              <br class="">
              <font class="" size="2" face="Courier">   4 warning:  
                 erase unlink of
                /lib/modules/2.6.32-642.11.1.el6.x86_64/modules.drm
                failed: No such file or directory</font>
              <br class="">
              <font class="" size="2" face="Courier">   5 warning:  
                 erase unlink of
                /lib/modules/2.6.32-642.11.1.el6.x86_64/modules.block
                failed: No such file or directory</font>
              <br class="">
              <br class="">
              <br class="">
              <font class="" size="2" face="sans-serif">There are new
                http. + mod_ssl  and yum delivered and installed.</font>
              <br class="">
              <br class="">
              <font class="" size="2" face="sans-serif">I simply rolled
                that back. and the proxy now runs perfect again.</font>
              <br class="">
              <br class="">
              <br class="">
              <font class="" size="2" face="sans-serif">Is this a known
                error? Any Workaround, something I missed?</font>
              <br class="">
              <br class="">
              <font class="" size="2" face="sans-serif">Cheers</font> <br
                class="">
              <font class="" size="2" face="sans-serif">Matthias Gruber</font>
              <br class="">
              <br class="">
              <br class="">
              <br class="">
              <br class="">
              <font class="" size="2" face="sans-serif">------------------------------------------------------------------------------------<br
                  class="">
                METZLER <br class="">
                Informationstechnologie<br class="">
                <br class="">
                Matthias Gruber <br class="">
                IT-Infrastruktur & -Betrieb<br class="">
                <br class="">
                B. Metzler seel. Sohn & Co.<br class="">
                Kommanditgesellschaft auf Aktien<br class="">
                Untermainanlage 1<br class="">
                60329 Frankfurt am Main<br class="">
                Telefon (0 69) 21 04 - 43 30<br class="">
                Telefax (0 69) 21 04 - 40 40<br class="">
                <a moz-do-not-send="true"
                  href="mailto:MGruber@metzler.com" class="">MGruber@metzler.com</a><br
                  class="">
              </font><a moz-do-not-send="true"
                href="x-msg://48/www.metzler.com" class=""><font
                  class="" size="2" face="sans-serif">www.metzler.com</font></a>
              <br class="">
              <br class="">
              <br class="">
              <br class="">
              <font class="" size="1" face="sans-serif" color="#5f5f5f">Von:
                       </font><font class="" size="1" face="sans-serif">Daryl
                Rose <<a moz-do-not-send="true"
                  href="mailto:darylrose@outlook.com" class="">darylrose@outlook.com</a>></font>
              <br class="">
              <font class="" size="1" face="sans-serif" color="#5f5f5f">An:
                       </font><font class="" size="1" face="sans-serif">"<a
                  moz-do-not-send="true"
                  href="mailto:spacewalk-list@redhat.com" class="">spacewalk-list@redhat.com</a>"
                <<a moz-do-not-send="true"
                  href="mailto:spacewalk-list@redhat.com" class="">spacewalk-list@redhat.com</a>></font>
              <br class="">
              <font class="" size="1" face="sans-serif" color="#5f5f5f">Datum:
                       </font><font class="" size="1" face="sans-serif">15.08.2017
                16:27</font>
              <br class="">
              <font class="" size="1" face="sans-serif" color="#5f5f5f">Betreff:
                       </font><font class="" size="1" face="sans-serif">[Spacewalk-list]
                error was [Errno 14] HTTPS Error 400 - Bad Request</font>
              <br class="">
              <font class="" size="1" face="sans-serif" color="#5f5f5f">Gesendet
                von:        </font><font class="" size="1"
                face="sans-serif"><a moz-do-not-send="true"
                  href="mailto:spacewalk-list-bounces@redhat.com"
                  class="">spacewalk-list-bounces@redhat.com</a></font>
              <br class="">
              <hr class="" noshade="noshade">
              <br class="">
              <br class="">
              <br class="">
              <font class="" size="3" face="Calibri">Earlier this summer
                I had to upgrade my proxy server with v2.6.   After
                which I started experiencing errors with my SLES servers
                receiving "HTTPS Error 400 - Bad Request" errors.  I was
                adviced to update the zypper library, which resolved
                this issue. I am now getting the same error with CentOS
                7.3 servers.  I would assume that I need to upgrade a
                yum library package, but I'm not sure which one.  Please
                advice.</font>
              <br class="">
              <br class="">
              <font class="" size="3" face="Calibri">Thank you.</font> <br
                class="">
              <br class="">
              <font class="" size="3" face="Calibri">Daryl</font><tt
                class=""><font class="" size="2">_______________________________________________<br
                    class="">
                  Spacewalk-list mailing list<br class="">
                  <a moz-do-not-send="true"
                    href="mailto:Spacewalk-list@redhat.com" class="">Spacewalk-list@redhat.com</a><br
                    class="">
                </font></tt><a moz-do-not-send="true"
                href="https://www.redhat.com/mailman/listinfo/spacewalk-list"
                class=""><tt class=""><font class="" size="2">https://www.redhat.com/mailman/listinfo/spacewalk-list</font></tt></a>
              <br class="">
              <br class="">
              <br class="">
              <br class="">
              <br class="">
              <font class="" size="2" face="Arial">Persönlich haftende
                Gesellschafter: Harald Illy, Michael Klaus, Friedrich
                von Metzler, Emmerich Müller, Gerhard Wiesheu<br
                  class="">
                Vorsitzender des Aufsichtsrates: Dr. Christoph Schücking<br
                  class="">
                Sitz der Gesellschaft: Frankfurt am Main,
                Handelsregisternummer: HRB 27 515</font><br class="">
              <br class="">
              <font class="" size="2" face="Arial"><font class=""
                  size="2" face="Arial">Diese Nachricht ist vertraulich.
                  Sollten Sie nicht der vorgesehene Empfänger sein, so
                  bitten wir Sie höflich, dies unverzüglich dem Absender
                  mitzuteilen und die Nachricht zu löschen. Es ist
                  unzulässig, die Nachricht unbefugt weiterzuleiten oder
                  zu kopieren. Da wir nicht die Echtheit oder
                  Vollständigkeit der in dieser Nachricht enthaltenen
                  Informationen garantieren oder zusichern können, sind
                  die vorstehenden Ausführungen rechtlich nicht bindend.
                  Eine Haftung hierfür wird ausgeschlossen.</font></font><br
                class="">
              <font class="" size="2" face="Arial"><font class=""
                  size="2" face="Arial">This message is confidential. If
                  you are not the intended recipient, we kindly ask you
                  to inform the sender and delete the information. Any
                  unauthorised dissemination or copying hereof is
                  prohibited. As we cannot guarantee or assure the
                  genuineness or completeness of the information
                  contained in this message, the statements set forth
                  above are not legally binding. Accordingly we cannot
                  accept any liability for their contents.</font></font>
              _______________________________________________<br
                class="">
              Spacewalk-list mailing list<br class="">
              <a moz-do-not-send="true"
                href="mailto:Spacewalk-list@redhat.com" class="">Spacewalk-list@redhat.com</a><br
                class="">
              <a class="moz-txt-link-freetext" href="https://www.redhat.com/mailman/listinfo/spacewalk-list">https://www.redhat.com/mailman/listinfo/spacewalk-list</a></div>
          </blockquote>
        </div>
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      <br>
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      <br>
      <pre wrap="">_______________________________________________
Spacewalk-list mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Spacewalk-list@redhat.com">Spacewalk-list@redhat.com</a>
<a class="moz-txt-link-freetext" href="https://www.redhat.com/mailman/listinfo/spacewalk-list">https://www.redhat.com/mailman/listinfo/spacewalk-list</a></pre>
    </blockquote>
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