How to fix error messages about Bad Gateway?
This applies to F-Secure Internet Gatekeeper version 6.60 and newer when it is used to scan the HTTP traffic. Error messages about “Bad Gateway” occur typically when the server running F-Secure Anti-Virus for Internet Gateways (the HTTP scanning component in the product) does not get prompt responses from the DNS server. If the DNS service is slow, DNS queries can timeout quite easily. In this case, you should configure the DNS client on the computer where F-Secure Anti-Virus for Internet Gateways is installed to wait longer for a response. This must be done through registry settings. Remember to create a backup copy of the registry before you edit it. Follow these instructions to configure the DNS client: • Open the Windows Start menu > Run… and start Regedt32.exe. • Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters. • Edit or add a new REG_MULTI_SZ entry called DNSQueryTimeouts and specify the following values: 8 8 8 8 8 0. Separate each entry with ENTER a
