| Port No | 9 |
| Service Name | discard |
| RFC Doc | 0 |
| Protocol | TCP |
| Description | discard is essentially a data sink, any data sent to the discard port is simply discarded, this was historically used for testing network links |
| Reference Link | Port No:9 And Service Name:discard Of Protocol:TCP |
| Attack | Firewalling recommendations: Firewall port 9 both inbound and outbound, this is a historical service that is potentially dangerous Attack detection: Most traffic to and from port 9 can be classified as hostile |
Catch threats immediately
We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.