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“To confirm that a service is present, simply attempt to use it.” Isn't the inverse of that true as well? If you don't want someone using a port, close it.
by cmdrfred 10y ago
“To confirm that a service is present, simply attempt to use it.”
Isn't the inverse of that true as well? If you don't want someone using a port, close it.
- teddyh 10y agoIf you by “close it” mean “don’t have something listening on it”, then yes.
- cmdrfred 10y agoI feel close is a better word. Not only is it far more concise. The port still may have a listener that can be accessed over a VPN or internal network you might just prevent access at the edge firewall for example.