在同步 RHUA 服务器上的所有软件仓库时 "rhui-manager" 抛出错误，即使授权证书有效

Issue

• 如何从客户门户网站为 RHUA 服务器生成并下载最新的 "内容/权利" 证书？

• rhui-manager 无法同步软件仓库

  -= Repository Synchronization Status =-
  Last Refreshed: 12:24:55
  
  Next Sync                    Last Sync                    Last Result         
  ------------------------------------------------------------------------------
  Red Hat Enterprise Linux 5 Server - Supplementary from RHUI (Debug RPMs) (5Server-i386)
  09-23-2013 13:44             08-15-2013 13:44             Error      
  
  Red Hat Enterprise Linux 5 Server - Supplementary from RHUI (Debug RPMs) (5Server-x86_64)
  09-23-2013 13:44             08-15-2013 13:44             Error      
  
  Red Hat Enterprise Linux 5 Server - Supplementary from RHUI (RPMs) (5Server-i386)
  09-23-2013 13:44             08-15-2013 13:46             Error      
  
  Red Hat Enterprise Linux 5 Server - Supplementary from RHUI (RPMs) (5Server-x86_64)
  09-23-2013 13:44             08-15-2013 13:47             Error      
  
  Red Hat Enterprise Linux 5 Server - Supplementary from RHUI (Source RPMs) (5Server-i386)
  09-23-2013 13:44             08-15-2013 13:45             Error      
  
  Red Hat Enterprise Linux 5 Server - Supplementary from RHUI (Source RPMs) (5Server-x86_64)
  09-23-2013 13:44             08-15-2013 13:45             Error      
  
  Red Hat Enterprise Linux 5 Server from RHUI (Debug RPMs) (5Server-i386)
  09-23-2013 17:44             08-15-2013 11:52             Error      
  
  Red Hat Enterprise Linux 5 Server from RHUI (Debug RPMs) (5Server-x86_64)
  09-23-2013 17:44             08-15-2013 11:55             Error      
  
  Red Hat Enterprise Linux 5 Server from RHUI (RPMs) (5Server-i386)
  09-23-2013 17:37             08-15-2013 18:00             Error      
  
  Red Hat Enterprise Linux 5 Server from RHUI (RPMs) (5Server-x86_64)
  09-23-2013 17:37             08-15-2013 18:06             Error      
  

• 在 grinder.log 中出现以下错误信息

  2013-09-23 12:39:23,366 14125:140433789273856: grinder.YumInfo:ERROR: activeobject:160 Caught exception when trying to fetch repomd.xml from [https://cdn.redhat.com//content/dist/rhel/rhui/server/5/5Server/x86_64/os]: Cannot retrieve repository metadata (repomd.xml) for repository: . Please verify its path and try again
  2013-09-23 12:39:23,366 14125:140433789273856: grinder.Retry:ERROR: activeobject:160 Attempt 4: Caught exception: Cannot retrieve repository metadata (repomd.xml) for repository: . Please verify its path and try again. Will retry in 20 seconds.
  

• 在升级到 RHUI 3.1 后，从 CDN 同步软件仓库会导致错误：

  --snip--
  Aug  5 03:28:10 prodrhua pulp: requests.packages.urllib3.connectionpool:INFO: Starting new HTTPS connection (1): cdn.redhat.com
  Aug  5 03:28:11 prodrhua pulp: pulp.server.async.tasks:INFO: [2a2873d8] Task failed : [1a4321d8-4d8f-48d0-87878-8319a71a72e9] : Error retrieving metadata: Forbidden
  --snip--
  

• 在 /root/.rhui/rhui.log 中出现以下错误信息

  Connecting to RHUA [rhua.example.com]...
  Successfully connected to [rhua.example.com]
  This certificate is invalid or expired.
  None
  This certificate is invalid or expired.
  None
  Loading the dict with registered subscriptions