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KWTS: Error "Could not resolve host" [Kaspersky Web Traffic Security]

Descriptrion

You can see an issue like this:

image.thumb.png.7c86376b71028d52e09b63cd00067013.png

You can also find log entries like this in diagnostic_info\logs\var\log\kwts-traces.log

Line 1538367: Jan 11 18:12:33 kwts2 KWTS Licenser[1154]: 1241 INF httpcli#011Req 0x7fecd003b9d0 CURL: Could not resolve host: activate.activation-v2.kaspersky.com
Line 1538460: Jan 11 18:12:33 kwts2 KWTS EventLogger[1062]: 1102 DBG APP: void lms::event_logger::LoggerHelperProcFrontend::SendCommand(const lms::event_logger::HelperProcCommand&, const string&)message is: license error: Could not resolve host

Or like this

Line 4667143: Nov 18 16:02:12 32-vs-kwts02 KWTS Licenser[1675]: 35735 DBG APP: virtual result_t lms::licenser::utils::RequestCompleteEvent::OnRequestComplete(licensing::facade::product::ILicensing*, licensing::facade::product::activation_action::Type, const ActivationCode&, result_t, licensing::facade::product::IActivationContent*) actionType = 0, activationCode = AW65R-BZ8CG-KBQ18-ANNZ2, result = 0xa0430005
 
Line 4667349: Nov 18 16:02:12 32-vs-kwts02 KWTS EventLogger[1552]: 1592 DBG APP: void lms::event_logger::Journalist::Write(const lms::event_logger::JournalRecord&) JournalRecordData(dateTime.dt: 133132501328539280, type: 9, person: kluser, result: 1, description: license error: Could not resolve host, details: { "name": "LicenseErrorEvent", "data": {#012  "reason": -1608777683#012} })

How to solve a problem 

It means that the problematic node could not resolve activation service. 

  1. Check an access to activation services from the problematic node
    curl -v https://activation-v2.kaspersky.com/ --cacert activation-v2.kaspersky.crt
  2. And if there is no success connection, open an access to
    https://activation-v2.kaspersky.com
    https://activation-v2.kaspersky.com/ActivationService/ActivationService.svc
  3. And check a page with configuring network access - https://support.kaspersky.com/KWTS/6.1/en-US/189764.htm

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