Cisco Cisco Web Security Appliance S170 사용자 가이드
10-3
Cisco IronPort AsyncOS 7.7.5 for Web User Guide
Chapter 10 Working with External Proxies
Adding External Proxy Information
As a result, transparently redirected HTTPS transactions only match Routing Policies that do not define
Routing Policy Group membership criteria by URL category. If all user-defined Routing Policies define
their membership by URL category, transparent HTTPS transactions match the Default Routing Policy
Group.
Routing Policy Group membership criteria by URL category. If all user-defined Routing Policies define
their membership by URL category, transparent HTTPS transactions match the Default Routing Policy
Group.
Adding External Proxy Information
To define external proxy information, you create a proxy group. A proxy group is an object that defines
a list of proxies and their connection information and the load balancing technique to use when
distributing requests to proxies in the group. You can create multiple proxy groups and can define
multiple proxies within a group.
a list of proxies and their connection information and the load balancing technique to use when
distributing requests to proxies in the group. You can create multiple proxy groups and can define
multiple proxies within a group.
AsyncOS for Web allows you to enter the same proxy server information multiple times into the same
proxy group. You might want to include the same proxy server multiple times to allow unequal load
distribution among the proxies in the proxy group.
proxy group. You might want to include the same proxy server multiple times to allow unequal load
distribution among the proxies in the proxy group.
Note
You can only specify one existing proxy during the System Setup Wizard. AsyncOS creates a proxy
group with one proxy using the information you enter in the System Setup Wizard. You can specify
additional proxies in the web interface after initial setup.
group with one proxy using the information you enter in the System Setup Wizard. You can specify
additional proxies in the web interface after initial setup.
Creating Proxy Groups
Step 1
Navigate to Network > Upstream Proxies, and click Add Group.
Step 2
Enter a name for the proxy group in the Name field.
Step 3
In the Proxy Servers section, define at least one external proxy.
a.
In the Proxy Address field, enter the hostname or IP address of the proxy server.
b.
In the Port field, enter the port number used to access the proxy.
c.
In the Reconnection Attempts field, enter the number of times the Web Proxy should try to connect
to the proxy server before ignoring it.
to the proxy server before ignoring it.
d.
Optionally, you can define another proxy server by clicking Add Row.
Step 4
In the Load Balancing field, choose the method the Web Proxy should use to distribute transactions to
the proxies when the group contains multiple proxies.
the proxies when the group contains multiple proxies.
For more information about the load balancing options, see
.
Step 5
In the Failure Handling field, choose how the Web Proxy should handle transactions when all proxies in
the group fail.
the group fail.
Step 6
Submit and commit your changes.