Sep  5 20:24:30 [hostname] named[1211]: validating @0x7f45781fead0: com DS: no valid signature found
Sep  5 20:24:30 [hostname] named[1211]: error (no valid RRSIG) resolving 'com/DS/IN': [IP-1]#53
Sep  5 20:24:30 [hostname] named[1211]: validating @0x7f457034cb70: com DS: no valid signature found
Sep  5 20:24:30 [hostname] named[1211]: error (no valid RRSIG) resolving 'com/DS/IN': [IP-2]#53
Sep  5 20:24:30 [hostname] named[1211]: validating @0x7f45781fead0: com DS: no valid signature found
Sep  5 20:24:30 [hostname] named[1211]: error (no valid RRSIG) resolving 'com/DS/IN': [IP-3]#53
Sep  5 20:24:30 [hostname] named[1211]: validating @0x7f45781fead0: com DS: no valid signature found
Sep  5 20:24:30 [hostname] named[1211]: error (no valid RRSIG) resolving 'com/DS/IN': [IP-4]#53
Sep  5 20:24:30 [hostname] named[1211]: validating @0x7f45781fead0: com DS: no valid signature found
Sep  5 20:24:30 [hostname] named[1211]: error (no valid RRSIG) resolving 'com/DS/IN': [IP-5]#53