System configuration The system of a Web Gateway appliance is configured to support the filtering functions that enforce a web security policy for your network. System configuration includes working with settings for network interfaces, proxies, cluster nodes, and other system components and processes. Initial setup system settingsSystem configuration is in part performed during the initial setup of an appliance. After this setup, you can complete further configuration activities for the appliance system. System configuration after the initial setupThe appliance system can be further configured after its initial setup. The settings that were configured during this setup can also be modified. System settings overview System settings can be configured in different fields. Network interface bonding Bonding two or more network interfaces enables them to act as one while increasing bandwidth and providing High Availability. Source-based routing When configuring routing for traffic in your network, you can let routing decisions be based on the source IP address. This routing method is known as source-based routing. Cache volume resizing Logical volumes for web caching and for storing temporary and log files can be resized on an appliance using a wizard. System files System files contain settings for functions of the appliance system. You can edit these settings using the File Editor. Update handling Information retrieved from databases and lists for use in the filtering process must be updated from time to time. Closed network updates Web Gateway appliances can be operated and updated in networks that have no internet connectivity for security or other reasons. These networks are also known as "closed" or "isolated" networks.