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en:verejne:sit:ethernet [09.03.2024 13:35] – [How to find a MAC address] Karel Kopeckýen:verejne:sit:ethernet [08.10.2024 11:28] (current) – [Security] cesnet blokuje udp 631 english Karel Kopecký
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 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>
 +
 +<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).
 </note> </note>
  
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 {{indexmenu>:en:verejne:sit:mac|tsort nsort}} {{indexmenu>:en:verejne:sit:mac|tsort nsort}}
  
-If you fail in finding your devices MAC address, come visit us during office and bring your device with you, we are happy to help you. Sometimes, you may find it on the device itself, or it's packaging. On devices with menus, it's commonly found in sections called "Settings" or "About the device".+If you are unable to find your device's MAC address, come visit us during office and bring your device with you, we are happy to help you. Sometimes, you may find it on the device itself, or it's packaging. On devices with menus, it's commonly found in sections called "Settings" or "About the device".