DNS proxy returns "Server failed" response after upgrading to SGOS 6.5.5.1
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Article ID: 168625
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Updated On:
Products
ProxySG Software - SGOS
Issue/Introduction
If you use NSlookup (set DNS to the appliance IP address) to test in SGOS 6.5.4.4 you get the following response:
> set type=AAAA > inoffice-mail-onmicrosoft-com.mail.protection.outlook.com
*** No IPv6 address (AAAA) records available for inoffice-mail-onmicrosoft-com.m ail.protection.outlook.com > inoffice-mail-onmicrosoft-com.mail.protection.outlook.com
If you do the same test in SGOS 6.5.5.1 you receive a 'server failed' message:
can't find inoffice-mail-onmicrosoft-com.mail.protection.outlo ok.com: Server failed
Cause
This issue was introduced in SGOS 6.5.5.1.
Resolution
Upgrade to SGOS 6.5.7.5.
Workaround
If you cannot upgrade, install policy such as the following: