| Attempt to detect TCP and UDP port scans. This match was derived from |
| Solar Designer's scanlogd. |
| .TP |
| .BI "--psd-weight-threshold " "threshold" |
| Total weight of the latest TCP/UDP packets with different |
| destination ports coming from the same host to be treated as port |
| scan sequence. |
| .TP |
| .BI "--psd-delay-threshold " "delay" |
| Delay (in hundredths of second) for the packets with different |
| destination ports coming from the same host to be treated as |
| possible port scan subsequence. |
| .TP |
| .BI "--psd-lo-ports-weight " "weight" |
| Weight of the packet with privileged (<=1024) destination port. |
| .TP |
| .BI "--psd-hi-ports-weight " "weight" |
| Weight of the packet with non-priviliged destination port. |
