1. NIDS Using Genetic Algorithms Umer Khan Weekly Progress Review 6-Sept-2005

2. Review of GAs

3. Rule Base For a GA Rule: if { condition } then { act } if {the connection has the following information: source IP address 150.165.13.1; destination IP address:130.179.16.43; source port number: 25; destination port number: 80; protocol used: IP} then {detect whether the connection is an intrusion or not}

4. Rule Set

5. Chromosomal Representation of Rules *13**1*16*43**25**80it

6. Formula for Fitness F = a / A – b / B

7. Cross Over b/w Rules

9. Future Directions Still to be discussed with Sir Ejaz and Dr.Waqar