# Thresholding: # # This feature is used to reduce the number of logged alerts for noisy rules. # Thresholding commands limit the number of times a particular event is logged # during a specified time interval. # # The syntax is the following: # # threshold gen_id <gen_id>, sig_id <sig_id>, type <limit|threshold|both>, track <by_src|by_dst>, count <n>, seconds <t> # # event_filter gen_id <gen_id>, sig_id <sig_id>, type <limit|threshold|both>, track <by_src|by_dst>, count <n>, seconds <t> # # suppress gen_id <gid>, sig_id <sid> # suppress gen_id <gid>, sig_id <sid>, track <by_src|by_dst>, ip <ip|subnet> # # The options are documented at https://suricata.readthedocs.io/en/latest/configuration/global-thresholds.html # # Please note that thresholding can also be set inside a signature. The interaction between rule based thresholds # and global thresholds is documented here: # https://suricata.readthedocs.io/en/latest/configuration/global-thresholds.html#global-thresholds-vs-rule-thresholds # Limit to 10 alerts every 10 seconds for each source host #threshold gen_id 0, sig_id 0, type threshold, track by_src, count 10, seconds 10 # Limit to 1 alert every 10 seconds for signature with sid 2404000 #threshold gen_id 1, sig_id 2404000, type threshold, track by_dst, count 1, seconds 10 # Avoid to alert on f-secure update # Example taken from https://blog.inliniac.net/2012/03/07/f-secure-av-updates-and-suricata-ips/ #suppress gen_id 1, sig_id 2009557, track by_src, ip 217.110.97.128/25 #suppress gen_id 1, sig_id 2012086, track by_src, ip 217.110.97.128/25 #suppress gen_id 1, sig_id 2003614, track by_src, ip 217.110.97.128/25