Securing Your Business with Cisco ASA and PIX Firewalls

VPN Best Practices

VPN is quite self-explanatory as it relates to the security appliance deployment in Chapter 11, “Deploying VPNs.” You could address a few minor points to increase your security posture.

Clients that come in as VPN connections should be a great concern for you as an administrator. These clients have generally been in many insecure environments that attract viruses, worms, Trojans, adware, and spyware. An average PC, connected to a large Internet service provider (ISP) without a firewall or host intrusion prevention, will likely be infected in less then 30 minutes.

Here's a list of environments where malicious code is easily picked up, many times without any indication to the user:

• Home PC with the kids downloading games

• Home ...