Two Web Filtering Technologies
Web filtering software (a.k.a. Web content filtering) can use two different Web
filtering technologies to monitor web usage: Passive and Active.
Passive Web Filtering Technology
(a.k.a. Pass By)
This an Web filtering technology that will not require to change network
infrastructure/configuration and client PC. This web filtering technology does not pose an additional delay and
bottleneck for the network.
Active Web Filtering Technology
(a.k.a. Pass Thru)
This
is an Web Filtering technology that may require an additional layer on the
network configuration that behaves like a gateway.This Web filtering technology will pose an
additional delay and bottleneck for the network.
Note that 2Watch Internet Filter (Web Filter) uses Passive web filtering
technology
Read more about 2Watch Internet Filter (Web Filter)