ASM And DNS Name Resolution
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ASM And DNS Name Resolution


Article ID: 233710


Updated On:


CA App Synthetic Monitor


Can you let us know how OPMS does Domain Analysis ? If the monitor is working fine most of the time, why would it get Nameserver error all of sudden ?


The agent uses standard DNS name resolution to perform Domain Analysis. To ensure correct behavior we do not rely on ISP's DNS server but run a DNS recursor on every ASM monitoring station - powerdns. See

for more information on this product.

It may be that the DNS Server did not respond in time or gave an empty response. You should  look into your DNS/networking environment to determine anything more.