<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Anz. spontan würde mir die Frage einfallen, ob der Raspberry von extern (Internet) erreichbar ist. Bei so komischen Verbindungen würde ich fast vermuten dass der Pi andersweitig missbraucht wird.<div>Passwörter vom Pi immer geändert?</div><div><br></div><div>Stefan <br><br><div id="AppleMailSignature">Von meinem iPad gesendet</div><div><br>Am 06.11.2017 um 22:30 schrieb Joerg Middendorf <<a href="mailto:joergmiddendorf@gmx.de">joergmiddendorf@gmx.de</a>>:<br><br></div><blockquote type="cite"><div><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><meta name="Generator" content="Microsoft Word 15 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--><div class="WordSection1"><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Ich habe mit dem Raspberry bereits 2x das komplette Netzwerk unserer kleinen Firma lahm gelegt. Bis vor einem halben Jahr lief der gleiche Raspberry unter gleicher IP Adresse im Netz ohne Probleme (älteres Image)<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE"> <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Folgendes Szenario:<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">- Neues Image 05_05_17_vz-raspbian-jessie-lite aufgespielt<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">- Partition erweitert<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">- Kanäle angelegt<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE"> <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Alles nach der Schritt für Schritt Anleitung.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE"> <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">1. Versuch:<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">- Statische IP Adresse eingestellt in /etc/network/interfaces (wie früher und laut Schritt für Schritt Anleitung)<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">- DHCP deaktiviert laut der Anleitung mit dhcpcd stop und disable<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Alles funktionierte einwandfrei. Alle Kanäle da. Im Netzwerk über Fritzbox 7390 angeschlossen.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Raspberry war erreichbar und funktionierte 1. Tag. Nächsten Morgen - Nichts geht mehr im Netzwerk. Raspberry rausgezogen - Fritzbox neu gestartet - alles läuft wieder.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Raspberry lässt mich nicht mehr per SSH zugreifen, auch nach reboot nicht – Konsole langsam und „Access denied“<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE"> <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">2. Versuch:<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Herausgefunden dass die Schritt für Schritt Anleitung nicht mehr passt. Neues Image erstellt. Diesmal static IP in /etc/dhcpcd.conf laut Internet. DHCP Server nicht ausgeschaltet.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Lief 1. Tag, dann wieder Netzwerk down<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Raspberry verweigert wieder SSH Zugang "Access denied"<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE"> <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Wireshark angeschlossen und festgestellt dass der Raspberry wilde Daten an scheinbar zufällige IP Adressen versendet. </span><span lang="EN-US" style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Beispiele:<o:p></o:p></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE"> <o:p></o:p></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Frame 8: 60 bytes on wire (480 bits), 60 bytes captured (480 bits) on interface 0<br>Ethernet II, Src: Raspberr_d9:f3:6a (b8:27:eb:d9:f3:6a), Dst: Dell_a9:96:da (00:18:8b:a9:96:da)<br>Internet Protocol Version 4, Src: 192.168.1.40, Dst: 158.138.136.131<br>Transmission Control Protocol, Src Port: 49232, Dst Port: 22, Seq: 0, Len: 0<o:p></o:p></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE"> <o:p></o:p></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Frame 9: 60 bytes on wire (480 bits), 60 bytes captured (480 bits) on interface 0<br>Ethernet II, Src: Raspberr_d9:f3:6a (b8:27:eb:d9:f3:6a), Dst: Dell_a9:96:da (00:18:8b:a9:96:da)<br>Internet Protocol Version 4, Src: 192.168.1.40, Dst: 219.159.121.124<br>Transmission Control Protocol, Src Port: 34897, Dst Port: 22, Seq: 0, Len: 0<o:p></o:p></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE"> <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">1000ende dieser Pakete in kürzester Zeit.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE"> <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Ich bräuchte dringend Eure hilfe. Vielleicht könnt Ihr mir weiterhelfen oder vielleicht ist ein Problem mit dem jetzigem Image bekannt.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Die Schritt für Schritt Anleitung scheint nicht mehr aktuell zu sein - Vielleicht liegt es auch daran aber ich finde das Verhalten schon sehr seltsam.<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE"> <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Ich weiß nicht mehr weiter und mir gehen die Ideen aus...<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE"> <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE">Schönen Gruß<br><br><o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE"> <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Verdana",sans-serif;mso-fareast-language:DE"> <o:p></o:p></span></p><p class="MsoNormal"><o:p> </o:p></p></div></div></blockquote></div></body></html>