Information
chargen is a network service that responds with 0 to 512 ASCII characters for each connection it receives. This service is intended for debugging and testing purposes. It is recommended that this service be disabled.
Rationale:
Disabling this service will reduce the remote attack surface of the system.
Solution
Run the following commands to disable chargen and chargen-udp :
# chkconfig chargen off
# chkconfig chargen-udp off