Before you start, check your network environment as follows:
If you plan to use the cloud proxy,
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Make sure any website belonging to the following domain is accessible on your client device:*.iws-hybrid.trendmicro.com
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Make sure your firewall rules allow the IP addresses used by the cloud proxy for inbound communication and for Direct Authentication if you choose this method for user authentication in Directory Services. For details about these IP addresses, see Static Proxy Servers and IP Addresses Used in Trend Micro Web Security.
If you plan to use the on-premises proxy,
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Make sure any website belonging to the following domains is accessible on your client device through your on-premises gateway:*.iws-hybrid.trendmicro.com*.url.trendmicro.com*.fbs20.trendmicro.com*.census.trendmicro.com*.trx.trendmicro.com*.activeupdate.trendmicro.com*.icrc.trendmicro.comwww.trendmicro.comapi.crs.trendmicro.com
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Make sure your firewall rules allow the IP addresses used by the on-premises proxy for Direct Authentication if you choose this method for user authentication in Directory Services. For details about these IP addresses, see Static Proxy Servers and IP Addresses Used in Trend Micro Web Security.
If you are new to TMWS, perform
the following tasks to implement TMWS and establish protection that is best for your
environment.