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Sub-domains do not match a rule with a non-FQDN domain object Technical Level
Symptoms
  • The firewall rule contains a non-FQDN domain object that should, but does not, match sub-domains according to sk120633.
  • When doing a # nslookup "ip_address_of_subdomain" the user sees:
    ** server can't find "ip_address_of_subdomain".in-addr.arpa.: NXDOMAIN
    
    or
    
    *** "DNS_SERVER_NAME" can't find "ip_address_of_subdomain": Non-existent domain
    
Cause

"ip_address_of_subdomain" has no reverse lookup entry.


Solution
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