Checking for DNS Poisoning Vulnerability

Just a quick way to test and see if your DNS servers are vulnerable to the latest DNS Cache Poisoning vulnerability (CVE-2008-1447).

From: https://www.dns-oarc.net/oarc/services/porttest

$ dig @4.2.2.3 +short porttest.dns-oarc.net TXT

Replacing 4.2.2.3 with the IP address of your DNS server(s).

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