The Cache support IP-based access control lists for both the proxy interface and the management interface.
The access control lists will allow or deny clients based on IP number matching. The order of the rules is important, they are read and checked sequentially. The keyword all will match all IP numbers. For example, to allow only hosts on the Class C subnet 18.104.22.168 and the Class B subnet 22.214.171.124 to access the proxy interface to the Cache, specify:
access_allow 126.96.36.199 access_allow 188.8.131.52 access_deny all
To allow or deny access to the proxy interface, use the access_allow and access_deny tags in cached.conf. To allow or deny access to the management interface, use the manager_access_allow and manager_access_deny tags in cached.conf.