This section contains profiles that fine tune Firewall Operations: Session Timers, Flood Protection, and DNS Security What to read next Create a Session TimerSession Timers define how long a session is maintained on the firewall after inactivity in the session. Flood ProtectionFlood protection helps to protect against Denial of Service (DDoS) attacks. Configure DNS SecurityCreating a DNS Security Profile helps to guard against DNS-related attacks. Manage Group to Profile PrecedenceYou can bind multiple groups to a security profile. NSX-T Data Center applies the security profile to the group with highest precedence level. Parent topic: Security