3 ms·
all machines need udp opened to get response from ntp and dns. moving these to tcp would actually seriously help with filtering ddos, but good luck.
by MrStonedOne 5y ago
all machines need udp opened to get response from ntp and dns.
moving these to tcp would actually seriously help with filtering ddos, but good luck.
- nickthemagicman 5y agoYeah but as I understand it, Port 22 doesn't just sit open on a machine waiting for any connection. Running a quick netstat -p udp doesn't show any UDP entrys with LISTENING status.