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| en:verejne:sit:ethernet [09.03.2024 13:36] – [How to find a MAC address] grammar Karel Kopecký | en:verejne:sit:ethernet [08.10.2024 11:28] (current) – [Security] cesnet blokuje udp 631 english Karel Kopecký | ||
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| Line 27: | Line 27: | ||
| Your cable-connected device has a public IPv4 address,\\ | Your cable-connected device has a public IPv4 address,\\ | ||
| __**always use a properly configured firewall!**__ | __**always use a properly configured firewall!**__ | ||
| + | </ | ||
| + | |||
| + | <note important> | ||
| + | CESNET has decided to centraly block inbound connections to the UDP port 631 with regard to a serious vulnerability in CUPSd (CVE-2024-47176). | ||
| </ | </ | ||