Error "Unknown error response (203)" and ProxySG appliance cannot resolve DNS lookup
Article ID: 168831
Updated On:
Products
ProxySG Software - SGOS
Issue/Introduction
The ProxySG appliance sometimes cannot resolve a DNS for a specific URL. The #test dns <URL> command responds with Unknown error response (203).
Cause
The issue might be caused by the ProxySG appliance writing the DNS cache to a disk with errors. Check the disk or the SCSI for errors, for example:
Storage400.5.5.1 00010002:04320002
Storage400.5.5.2 411,834,672,517
Storage400.5.5.3 815756967
Storage400.5.5.4 1
Storage400.5.5.5 1
Storage400.5.6.1 00010002:04320002
Storage400.5.6.2 423,066,698,949
Storage400.5.6.3 816490580
Storage400.5.6.4 1
Storage400.5.6.5 1
Storage400.5.7.1 00010002:04320002
Storage400.5.7.2 496,635,027,908
Storage400.5.7.3 816524404
Storage400.5.7.4 1
Storage400.5.7.5 1
Storage400.5.8.1 00010002:04320002
Storage400.5.8.2 555,685,187,983
Storage400.5.8.3 816004991
Storage400.5.8.4 1
Storage400.5.8.5 1
Storage400.5.9.1 00010002:04320002
Storage400.5.9.2 392,964,227,765
Storage400.5.9.3 815973862
Storage400.5.9.4 1
Storage400.5.9.5 1
Storage400.5.5.1 00010002:04320002
Storage400.5.5.2 411,834,672,517
Storage400.5.5.3 815756967
Storage400.5.5.4 1
Storage400.5.5.5 1
Storage400.5.6.1 00010002:04320002
Storage400.5.6.2 423,066,698,949
Storage400.5.6.3 816490580
Storage400.5.6.4 1
Storage400.5.6.5 1
Storage400.5.7.1 00010002:04320002
Storage400.5.7.2 496,635,027,908
Storage400.5.7.3 816524404
Storage400.5.7.4 1
Storage400.5.7.5 1
Storage400.5.8.1 00010002:04320002
Storage400.5.8.2 555,685,187,983
Storage400.5.8.3 816004991
Storage400.5.8.4 1
Storage400.5.8.5 1
Storage400.5.9.1 00010002:04320002
Storage400.5.9.2 392,964,227,765
Storage400.5.9.3 815973862
Storage400.5.9.4 1
Storage400.5.9.5 1
Resolution
Take the disk offline to resolve the DNS query. You might have to reinitialize the disk or an RMA.
Feedback
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