Troubleshooting: Diagnose if local network is keeping Red Hat Satellite 6 from successfully downloading from Red Hat CDN

Solution Verified - Updated -


  • Red Hat Satellite fails to sync one or multiple repos with Red Hat CDN
  • Red Hat Satellite throws "SSL_connect SYSCALL returned=5 errno=0 state=SSLv2/v3 read server hello A" SSL errors while connecting to Red Hat CDN to sync one or multiple repos
  • Suspicion that the network equipment on the local network may be keeping Red Hat Satellite from successfully connecting to Red Hat CDN


  • Red Hat Satellite 6.x
  • A host outside of the corporate network that is certainly not behind the corporate network firewalls, proxies, load balancers, etc.

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