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| [[dns|DNS]]                  |

| MAC Hersteller Adressen                      | https://www.heise.de/netze/tools/mac/                       |
| IANA Internet Assigned Numbers Authority     | http://www.iana.org/                                        |
| Internet FAQ Archives                        | http://www.faqs.org/                                        |
| Internet FAQ Archives TCP-IP                 | http://www.faqs.org/faqs/internet/tcp-ip/tcp-ip-faq/part1/  |
| TCP - UDP Portnumbers at IANA.ORG            | http://www.iana.org/assignments/port-numbers                |
| [[https://ipinfo.io| IP Geo-Location]]       | https://ipinfo.io/                                          |
| [[https://iplocation.com/|IP Location Map]]  | https://iplocation.com/                                     |
| [[https://haveibeenpwned.com/ | Have i been "pwned"  ]]  | https://haveibeenpwned.com/  Breach-Kontrolle                    |