User`s guide

ZyWALL IDP 10 User’s Guide
55 Chapter 6 IDP Policies
Figure 27 IM (Chat) Signatures
6.3.3 SPAM
Spam is unsolicited "junk" e-mail sent to large numbers of people to promote products or
services. To find a list of all spam signatures supported by the ZyWALL, do a policy search by
name (spam) or policy query by type (SPAM). The following screen shows some spam
signatures supported by the ZyWALL at the time of writing.
Figure 28 Spam Signatures
6.3.4 DoS/DDoS
The goal of Denial of Service (DoS) attacks is not to steal information, but to disable a device
or network on the Internet. A distributed denial-of-service (DDoS) attack is one in which
multiple compromised systems attack a single target, thereby causing denial of service for
users of the targeted system. To find a list of all Denial of Service or Distributed Denial of
Service signatures supported by the ZyWALL, do a policy search by name (DoS) or policy
query by type (DoS/DDoS). The following screen shows some of the DoS/DDoS signatures
supported by the ZyWALL at the time of writing.