. DHCP??”A DHCP verifier simply sends Ping requests to a local DHCP server to verify
that the DHCP server is responding.
. DNS??”A DNS connectivity verifier is configured by default to also Ping DNS servers
to validate functionality. It can be customized to send requests to the DNS service as
well, however.
. Others??”By default, this group type is used to organize any custom connectivity
verifiers created by the administrator. It uses Ping by default, but can also be modified
to attempt to connect to any number of ports.
. Published Servers??”The Published Servers Group type is used to organize verifiers to
servers for which ISA has publishing rules set up.
. Web (Internet)??”The Web (Internet) group is used for verifying outbound Internet
connectivity by performing occasional HTTP ???GET??? requests to web servers on the
Internet.
Logging ISA Access
The Logging tab in the Monitoring node gives administrators an extremely useful tool for
troubleshooting connection failures and monitoring content flow. The Logging tab allows
the ISA activity to be displayed in real time, with each and every network packet sent and
processed by the ISA server displayed in the Details pane, such as the logs shown in
Figure 3.
Pages:
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214