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ERROR condition detected - DNS query latency

Pavana

Hello,

"Responses from the DNS server(s) that the Shophos Web Appliance is using are taking longer than expected (18.0 s), which may result in slower web browsing."

I am continuously getting above alert mails from my Sophos Appliance, plz help me how to correct this

Regards,

Pavana

:14103


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    Hi Pavana,

    It sounds like the primary DNS server that the appliance is using is taking a long time to respond and this will impact web browsing performance.

    • You can check the primary DNS server being used in 'Configuration > Network > Network Interface'.
    • You can also test DNS response times by using the tool in 'Configuration > Network > Diagnostic Tools'.
    • You could use this command on a workstation to test DNS response times as well:  nslookup <website> <dns-server>

    Unfortunately if the primary DNS server is responding slowly, you would need to check this out on the DNS server itself.  In the interim you might want to change to a differant DNS server as primary, which should improve browsing performance.

    Hope this helps.  Good luck :)

    Tom.

    :14131
Reply
  • 0

    Hi Pavana,

    It sounds like the primary DNS server that the appliance is using is taking a long time to respond and this will impact web browsing performance.

    • You can check the primary DNS server being used in 'Configuration > Network > Network Interface'.
    • You can also test DNS response times by using the tool in 'Configuration > Network > Diagnostic Tools'.
    • You could use this command on a workstation to test DNS response times as well:  nslookup <website> <dns-server>

    Unfortunately if the primary DNS server is responding slowly, you would need to check this out on the DNS server itself.  In the interim you might want to change to a differant DNS server as primary, which should improve browsing performance.

    Hope this helps.  Good luck :)

    Tom.

    :14131
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