Host Name Resolution

Figure 9 shows an example of a host access rule in which a URL is specified in the Host Name field and then resolved to multiple IP addresses. This indicates that the URL is actually being served up from multiple physical Internet hosts. Resolving an Internet name to physical host IP addresses is always recommended in order to reduce the overhead of the Block-IT (HAC) filter and to guarantee the proper enforcement of the rule. The Block-IT technical documentation discusses this in more detail.

Figure 9 – Host name resolution is always recommended as a performance optimization measure.

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