Cyberguard’s WebWasher uses twin Intel Xeon 3.06GHz processors with 1GB RAM to provide anti-spam and content filtering options in a 1U height chassis. The system has only one power supply, but two Gigabit Ethernet connections. Extensive documentation is provided in PDF format.
The administration interface provides a number of tabbed panes that open out into further lists of options and displays. Help is available on all pages and is specific to each field and setting.
Although the interface is not complex, CyberGuard has provided a search option. The search results are hot links to the appropriate screen pages, which show highlighted search hits. We found this very useful at times, especially when trying to find out how to shut the system down.
Email alerts can be triggered by system events such as an SMTP problem, and can also provide early warning of imminent licence expiry. Alerts can be sent to multiple destinations for any condition.
Reporting is comprehensive with numerous options, and there is a live reporting facility that allows the user to review current activity through the browser interface. Since there are no active displays of traffic activity, as there are on other systems, this is the only way to monitor the device’s performance. However, this is far less of an issue than it might appear, since most network support staff are far too busy to spend much time watching real-time displays. They are more likely to appreciate the detailed statistical reports available and the early warning and alerting options.
The system can use up to three external blacklisting sites and can integrate with LDAP for user authentication. Message filtering options are extensive, allowing messages to be filtered on sender or receiver, subject or size, and even the number and size of attachments.
The system can be set to provide some unusual processes. Spam can be sent to a separate queue while the system generates a list of the queued messages. This list can be emailed to the intended recipients for them to decide what to do about them. The lists can also be sent to just one account for action. In this case, the intended recipients may never be aware of the mail at all unless the administrator releases it to them.