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unabhängig davon, welche Dienste darauf laufen. Der einfachste Weg, die Server-Verfügbarkeit zu überwachen.",[340,341,343],"h2",{"id":342},"was-wird-geprüft","Was wird geprüft?",[336,345,346],{},"LIVCK sendet ein Ping-Signal an den Host und misst:",[348,349,350,358,364],"ul",{},[351,352,353,357],"li",{},[354,355,356],"strong",{},"Erreichbarkeit"," -- Antwortet der Server?",[351,359,360,363],{},[354,361,362],{},"Antwortzeit"," -- Wie schnell kommt die Antwort (Latenz)?",[351,365,366,369],{},[354,367,368],{},"Paketverlust"," -- Gehen Pakete verloren?",[336,371,372],{},"Ein Ping-Check arbeitet auf Netzwerkebene. Ob die Anwendung darauf (Website, Datenbank) funktioniert, prüft er nicht.",[374,375,378],"callout",{"title":376,"type":377},"Netzwerkebene vs. Anwendungsebene","info",[336,379,380,381,385,386,389],{},"Ein Ping-Check sagt: \"Der Server ist an und reagiert im Netzwerk.\" Ob die Website läuft oder die Datenbank Verbindungen annimmt, sagt er nicht. Dafür brauchst du ",[382,383,384],"a",{"href":38},"HTTP-Checks"," oder ",[382,387,388],{"href":42},"TCP-Checks",".",[340,391,393],{"id":392},"wann-ping-checks-nutzen","Wann Ping-Checks nutzen?",[336,395,396],{},"Ideal, wenn du:",[348,398,399,406,412,419],{},[351,400,401,402,405],{},"Die ",[354,403,404],{},"grundsätzliche Erreichbarkeit"," eines Servers überwachen willst",[351,407,401,408,411],{},[354,409,410],{},"Netzwerkqualität"," prüfen möchtest (Latenz, Paketverlust)",[351,413,414,415,418],{},"Einen Server ohne ",[354,416,417],{},"Webserver oder anderen Dienst"," überwachst",[351,420,421,422,425],{},"Ein ",[354,423,424],{},"frühes Warnsignal"," brauchst – fällt der Ping aus, läuft auch nichts anderes",[427,428,430],"h3",{"id":429},"typische-einsatzgebiete","Typische Einsatzgebiete",[432,433,434,447],"table",{},[435,436,437],"thead",{},[438,439,440,444],"tr",{},[441,442,443],"th",{},"Einsatz",[441,445,446],{},"Beschreibung",[448,449,450,461,471,481],"tbody",{},[438,451,452,458],{},[453,454,455],"td",{},[354,456,457],{},"Server-Verfügbarkeit",[453,459,460],{},"Prüfe, ob ein physischer oder virtueller Server erreichbar ist",[438,462,463,468],{},[453,464,465],{},[354,466,467],{},"Netzwerk-Monitoring",[453,469,470],{},"Überwache Router, Switches oder Gateways",[438,472,473,478],{},[453,474,475],{},[354,476,477],{},"Infrastruktur-Checks",[453,479,480],{},"Stelle sicher, dass kritische Infrastruktur-Server laufen",[438,482,483,488],{},[453,484,485],{},[354,486,487],{},"Latenz-Überwachung",[453,489,490],{},"Erkenne Netzwerk-Verschlechterungen frühzeitig",[340,492,494],{"id":493},"konfiguration","Konfiguration",[427,496,498],{"id":497},"host-ip-adresse","Host \u002F IP-Adresse",[336,500,501],{},"Die Server-Adresse als Domain oder IP-Adresse.",[336,503,504],{},[354,505,506],{},"Beispiele:",[348,508,509,515,520],{},[351,510,511],{},[512,513,514],"code",{},"server.example.com",[351,516,517],{},[512,518,519],{},"203.0.113.10",[351,521,522,525],{},[512,523,524],{},"2001:db8::1"," (IPv6)",[374,527,530],{"title":528,"type":529},"Firewalls können Pings blockieren","warning",[336,531,532,533,536],{},"Manche Server oder Firewalls blockieren ICMP-Anfragen. Antwortet dein Server nicht auf Pings, obwohl er läuft, prüfe die Firewall – oder nutze einen ",[382,534,535],{"href":42},"TCP-Check"," auf einen bekannten offenen Port.",[340,538,69],{"id":539},"bedingungen",[336,541,542,543,545,546,548,549,389],{},"Für Ping-Checks gibt es zwei Felder: ",[354,544,362],{}," (Ping-Dauer in ms) und ",[354,547,368],{}," (in %). Alle Operatoren und Beispiele unter ",[382,550,69],{"href":70},[374,552,555],{"title":553,"type":554},"Empfohlene Bedingungen","tip",[336,556,557,558,561,562,565,566,569],{},"Eine bewährte Kombination: ",[354,559,560],{},"Paketverlust > 20 %"," → Beeinträchtigt, ",[354,563,564],{},"> 50 %"," → Offline, ",[354,567,568],{},"Antwortzeit > 500ms"," → Beeinträchtigt. So wirst du bei Netzwerk-Instabilität wie bei hoher Latenz gewarnt.",[340,571,573],{"id":572},"standard-verhalten","Standard-Verhalten",[336,575,576],{},"Ohne eigene Bedingungen gilt:",[348,578,579,585,591],{},[351,580,581,584],{},[354,582,583],{},"Ping-Antwort ohne Verlust"," = Online",[351,586,587,590],{},[354,588,589],{},"Paketverlust über 0 %"," = Beeinträchtigt (automatische Standard-Bedingung)",[351,592,593,596],{},[354,594,595],{},"Keine Antwort oder Timeout"," = Offline",[340,598,600],{"id":599},"richtwerte-für-antwortzeiten","Richtwerte für Antwortzeiten",[336,602,603],{},"Die Ping-Antwortzeit hängt stark von der Entfernung zwischen Monitoring-Standort und Server ab:",[432,605,606,616],{},[435,607,608],{},[438,609,610,613],{},[441,611,612],{},"Verbindung",[441,614,615],{},"Erwartete Antwortzeit",[448,617,618,629,640,651],{},[438,619,620,626],{},[453,621,622,625],{},[354,623,624],{},"Gleiche Region"," (z.B. FFM → Deutschland)",[453,627,628],{},"\u003C 10ms",[438,630,631,637],{},[453,632,633,636],{},[354,634,635],{},"Europa"," (z.B. FFM → HEL)",[453,638,639],{},"20--50ms",[438,641,642,648],{},[453,643,644,647],{},[354,645,646],{},"Transatlantik"," (z.B. FFM → ASH)",[453,649,650],{},"80--120ms",[438,652,653,658],{},[453,654,655],{},[354,656,657],{},"Problematisch",[453,659,660],{},"> 200ms",[374,662,664],{"title":663,"type":377},"Antwortzeiten sind relativ",[336,665,666],{},"Beobachte Veränderungen, nicht absolute Werte. Springt dein Server von 15ms auf 200ms, deutet das auf ein Problem hin – auch wenn 200ms anderswo normal wäre.",[340,668,670],{"id":669},"typische-anwendungsfälle","Typische Anwendungsfälle",[427,672,674],{"id":673},"server-verfügbarkeit-prüfen","Server-Verfügbarkeit prüfen",[348,676,677,685],{},[351,678,679,682,683],{},[354,680,681],{},"Host",": ",[512,684,514],{},[351,686,687,690],{},[354,688,689],{},"Bedingung",": Standard (keine eigene Bedingung nötig)",[427,692,694],{"id":693},"netzwerkqualität-überwachen","Netzwerkqualität überwachen",[348,696,697,703,709,715],{},[351,698,699,682,701],{},[354,700,681],{},[512,702,519],{},[351,704,705,708],{},[354,706,707],{},"Bedingung 1",": Paketverlust > 20 = Beeinträchtigt",[351,710,711,714],{},[354,712,713],{},"Bedingung 2",": Paketverlust > 50 = Offline",[351,716,717,720],{},[354,718,719],{},"Bedingung 3",": Antwortzeit > 500 = Beeinträchtigt",[340,722,724],{"id":723},"verfügbarkeit","Verfügbarkeit",[336,726,727,728,731],{},"Ping-Checks sind in ",[354,729,730],{},"allen Plänen"," verfügbar – auch im Free-Plan.",[340,733,735],{"id":734},"weiterführende-themen","Weiterführende Themen",[348,737,738,743,748,753,758],{},[351,739,740,742],{},[382,741,69],{"href":70}," -- Eigene Regeln für Online\u002FOffline\u002FBeeinträchtigt definieren",[351,744,745,747],{},[382,746,65],{"href":66}," -- Intervall, Timeout und Wiederholungen konfigurieren",[351,749,750,752],{},[382,751,388],{"href":42}," -- Alternative, wenn Ping blockiert wird",[351,754,755,757],{},[382,756,73],{"href":74}," -- Von wo wird geprüft?",[351,759,760,762],{},[382,761,219],{"href":220}," -- Features und Limits vergleichen",{"title":764,"searchDepth":765,"depth":765,"links":766},"",3,[767,769,772,775,776,777,778,782,783],{"id":342,"depth":768,"text":343},2,{"id":392,"depth":768,"text":393,"children":770},[771],{"id":429,"depth":765,"text":430},{"id":493,"depth":768,"text":494,"children":773},[774],{"id":497,"depth":765,"text":498},{"id":539,"depth":768,"text":69},{"id":572,"depth":768,"text":573},{"id":599,"depth":768,"text":600},{"id":669,"depth":768,"text":670,"children":779},[780,781],{"id":673,"depth":765,"text":674},{"id":693,"depth":765,"text":694},{"id":723,"depth":768,"text":724},{"id":734,"depth":768,"text":735},"Prüfe die Erreichbarkeit von Hosts per Ping.","md",{},null,{"title":49,"description":784},"JUKBCHa2S94AmY0U8-Tei8k90qvKUPeVQjLzsqC9SQM",1782020582678]