Firewalls

optimize its services, ensure that it is still producing a secure envi-

ronment, allow you to perform upgrades, and ensure that the com-

ponents of the firewall are still functioning and interacting with

each other.

19.4 Maintenance of a firewall

In choosing a firewall or any other safeguard technology, you must

ensure they have a management/monitoring module. Monitoring

your system includes protecting the confidentiality of your customers

but also involves monitoring the sensitivity of your devices and the

security of your network. Most firewalls should have inspection

mechanisms, but others also include authentication and encryption

technologies. While ...