[{"data":1,"prerenderedAt":292},["ShallowReactive",2],{"doku:en:richtlinien-anhang\u002Fhilfe-efea1ce0d284-enableauthratelimiter":3},{"seite":4,"start":37,"leiste":38,"bereich":291,"zurueck":291,"weiter":291},{"sprache":5,"rel":6,"zu":7,"id":8,"titel":9,"titelHtml":9,"beschreibung":10,"kennzeile":11,"imMenue":12,"html":13,"ueberschriften":14},"en","richtlinien-anhang\u002Fhilfe-efea1ce0d284-enableauthratelimiter","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Fhilfe-efea1ce0d284-enableauthratelimiter","referenz-hilfe-efea1ce0d284-enableauthratelimiter","Enable authentication rate limiter","A DWORD value of `1` enables the Windows SMB server authentication rate limiter.","since 0.9.8.11",false,"\u003Ch2 id=\"purpose\">Purpose\u003C\u002Fh2>\n\u003Cdetails class=\"doku-klappbox\">\u003Csummary>Show registry keys (1)\u003C\u002Fsummary>\u003Cdiv class=\"doku-klappbox-inhalt\">\n\u003Cul>\n\u003Cli>\u003Ccode>HKLM\\Software\\Policies\\Microsoft\\Windows\\LanmanServer\\EnableAuthRateLimiter\u003C\u002Fcode>\u003C\u002Fli>\n\u003C\u002Ful>\n\u003C\u002Fdiv>\u003C\u002Fdetails>\n\u003Cp>A DWORD value of \u003Ccode>1\u003C\u002Fcode> enables the Windows SMB server authentication rate limiter. The limiter introduces a delay after failed NTLM- and PKU2U-based authentication attempts, reducing the number of passwords that can be tried through SMB within a given period.\u003C\u002Fp>\n\u003Cp>\u003Ccode>EnableAuthRateLimiter\u003C\u002Fcode> does not itself define the length of the delay. The delay is controlled by a separate SMB server setting, for which Microsoft documents a default of \u003Ccode>2000\u003C\u002Fcode> milliseconds.\u003C\u002Fp>\n\u003Ch2 id=\"notes\">Notes\u003C\u002Fh2>\n\u003Ch3 id=\"security\">Security\u003C\u002Fh3>\n\u003Cp>The delay makes brute-force attacks against accounts reachable through SMB substantially more time-consuming. It does not completely prevent authentication attempts, lock accounts, or block SMB connections. Microsoft therefore describes the feature as a defense-in-depth measure.\u003C\u002Fp>\n\u003Cp>The rate limiter covers failed NTLM- and PKU2U-based authentication attempts. It does not affect normal Kerberos authentication because Kerberos authentication occurs before an application protocol such as SMB establishes its connection. This registry value also provides no protection for authentication through other network services.\u003C\u002Fp>\n\u003Ch3 id=\"possible-side-effects\">Possible side effects\u003C\u002Fh3>\n\u003Cp>Legitimate failed NTLM- or PKU2U-based authentication attempts against the SMB server are subject to the same delay. Repeated attempts using incorrect or outdated credentials can therefore receive slower responses.\u003C\u002Fp>\n\u003Ch3 id=\"notes-1\">Notes\u003C\u002Fh3>\n\u003Cp>This is a computer-scoped policy value of type \u003Ccode>REG_DWORD\u003C\u002Fcode>; \u003Ccode>1\u003C\u002Fcode> means enabled and \u003Ccode>0\u003C\u002Fcode> means disabled.\u003C\u002Fp>\n\u003Cp>Microsoft documents the SMB authentication rate limiter for Windows Server 2025 and Windows 11, version 24H2 or later. The feature is enabled by default on these operating systems. Its protection is relevant only when the SMB server is reachable over the network.\u003C\u002Fp>\n\u003Ch3 id=\"microsoft-documentation\">Microsoft documentation\u003C\u002Fh3>\n\u003Cp>\u003Ca href=\"https:\u002F\u002Flearn.microsoft.com\u002Fen-us\u002Fwindows\u002Fclient-management\u002Fmdm\u002Fpolicy-csp-lanmanserver#enableauthratelimiter\">Microsoft Learn: LanmanServer Policy CSP – EnableAuthRateLimiter\u003C\u002Fa>\u003C\u002Fp>\n\u003Cp>\u003Ca href=\"https:\u002F\u002Flearn.microsoft.com\u002Fen-us\u002Fwindows-server\u002Fstorage\u002Ffile-server\u002Fconfigure-smb-authentication-rate-limiter\">Microsoft Learn: Configure SMB authentication rate limiter for Windows\u003C\u002Fa>\u003C\u002Fp>\n\u003Ch2 id=\"see-also\">See also\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>\u003Ca href=\"\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-netzwerk-freigaben#e-efea1ce0d2\">Entry in the reference\u003C\u002Fa>\u003C\u002Fli>\n\u003C\u002Ful>\n",[15,19,22,26,29,31,34],{"ebene":16,"id":17,"text":18},2,"purpose","Purpose",{"ebene":16,"id":20,"text":21},"notes","Notes",{"ebene":23,"id":24,"text":25},3,"security","Security",{"ebene":23,"id":27,"text":28},"possible-side-effects","Possible side effects",{"ebene":23,"id":30,"text":21},"notes-1",{"ebene":23,"id":32,"text":33},"microsoft-documentation","Microsoft documentation",{"ebene":16,"id":35,"text":36},"see-also","See also","\u002Fen\u002Fdocumentation",[39,59,71,79,127,147,163,179,203,219,235],{"titel":40,"pfad":41,"seiten":42},"Getting started","erste-schritte",[43,47,51,55],{"rel":44,"titel":45,"zu":46},"erste-schritte\u002Fwas-ist-setup-foundry","Setup Foundry","\u002Fen\u002Fdocumentation\u002Ferste-schritte\u002Fwas-ist-setup-foundry",{"rel":48,"titel":49,"zu":50},"erste-schritte\u002Finstallation","Installing Setup 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apps","\u002Fen\u002Fdocumentation\u002Fkonfiguration\u002Fapps-entfernen",{"rel":108,"titel":109,"zu":110},"konfiguration\u002Fauswaehlen","Selecting applications","\u002Fen\u002Fdocumentation\u002Fkonfiguration\u002Fauswaehlen",{"rel":112,"titel":113,"zu":114},"konfiguration\u002Frichtlinien","Policies","\u002Fen\u002Fdocumentation\u002Fkonfiguration\u002Frichtlinien",{"rel":116,"titel":117,"zu":118},"konfiguration\u002Fpc-informationen","PC information","\u002Fen\u002Fdocumentation\u002Fkonfiguration\u002Fpc-informationen",{"rel":120,"titel":121,"zu":122},"konfiguration\u002Fnamensschema","Naming scheme","\u002Fen\u002Fdocumentation\u002Fkonfiguration\u002Fnamensschema",{"rel":124,"titel":125,"zu":126},"konfiguration\u002Finstall-assist-gestalten","Design the Install 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computer","\u002Fen\u002Fdocumentation\u002Finstallationsmedien\u002Finstall-assist",{"titel":148,"pfad":149,"seiten":150},"Machines","pruefmaschine",[151,155,159],{"rel":152,"titel":153,"zu":154},"pruefmaschine\u002Fhyper-v-berechtigungen","Hyper-V permissions","\u002Fen\u002Fdocumentation\u002Fpruefmaschine\u002Fhyper-v-berechtigungen",{"rel":156,"titel":157,"zu":158},"pruefmaschine\u002Fverwenden","Use the test machine","\u002Fen\u002Fdocumentation\u002Fpruefmaschine\u002Fverwenden",{"rel":160,"titel":161,"zu":162},"pruefmaschine\u002Ferstellen","Create a machine","\u002Fen\u002Fdocumentation\u002Fpruefmaschine\u002Ferstellen",{"titel":164,"pfad":165,"seiten":166},"Editions","editionen",[167,171,175],{"rel":168,"titel":169,"zu":170},"editionen\u002Fvergleich","Editions at a glance","\u002Fen\u002Fdocumentation\u002Feditionen\u002Fvergleich",{"rel":172,"titel":173,"zu":174},"editionen\u002Flizenz-aktivieren","Activate a license","\u002Fen\u002Fdocumentation\u002Feditionen\u002Flizenz-aktivieren",{"rel":176,"titel":177,"zu":178},"editionen\u002Faktivierungen-zuruecksetzen","Reset activations","\u002Fen\u002Fdocumentation\u002Feditionen\u002Faktivierungen-zuruecksetzen",{"titel":180,"pfad":181,"seiten":182},"Troubleshooting","fehler",[183,187,191,195,199],{"rel":184,"titel":185,"zu":186},"fehler\u002Fusb","USB drive problems","\u002Fen\u002Fdocumentation\u002Ffehler\u002Fusb",{"rel":188,"titel":189,"zu":190},"fehler\u002Fiso","ISO import problems","\u002Fen\u002Fdocumentation\u002Ffehler\u002Fiso",{"rel":192,"titel":193,"zu":194},"fehler\u002Fhyperv","Hyper-V problems","\u002Fen\u002Fdocumentation\u002Ffehler\u002Fhyperv",{"rel":196,"titel":197,"zu":198},"fehler\u002Finstall-assist","When Setup fails on the target computer","\u002Fen\u002Fdocumentation\u002Ffehler\u002Finstall-assist",{"rel":200,"titel":201,"zu":202},"fehler\u002Fantwortdatei","The answer 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tasks","\u002Fen\u002Fdocumentation\u002Fwindows-anhang\u002Faufgaben",{"rel":232,"titel":233,"zu":234},"windows-anhang\u002Fapps","App packages","\u002Fen\u002Fdocumentation\u002Fwindows-anhang\u002Fapps",{"titel":236,"pfad":237,"seiten":238},"Policy appendix","richtlinien-anhang",[239,243,247,251,255,259,263,267,271,275,279,283,287],{"rel":240,"titel":241,"zu":242},"richtlinien-anhang\u002Frichtlinien","Policy reference","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien",{"rel":244,"titel":245,"zu":246},"richtlinien-anhang\u002Frichtlinien-office-haertung","Office hardening","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-office-haertung",{"rel":248,"titel":249,"zu":250},"richtlinien-anhang\u002Frichtlinien-edge-internet-explorer","Edge and Internet Explorer","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-edge-internet-explorer",{"rel":252,"titel":253,"zu":254},"richtlinien-anhang\u002Frichtlinien-virenschutz-angriffsflaechen","Virus protection and attack surface","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-virenschutz-angriffsflaechen",{"rel":256,"titel":257,"zu":258},"richtlinien-anhang\u002Frichtlinien-netzwerk-freigaben","Network and file sharing","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-netzwerk-freigaben",{"rel":260,"titel":261,"zu":262},"richtlinien-anhang\u002Frichtlinien-datenschutz-telemetrie","Privacy and telemetry","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-datenschutz-telemetrie",{"rel":264,"titel":265,"zu":266},"richtlinien-anhang\u002Frichtlinien-protokollierung-ueberwachung","Logging and auditing","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-protokollierung-ueberwachung",{"rel":268,"titel":269,"zu":270},"richtlinien-anhang\u002Frichtlinien-anmeldung-konten","Sign-in and accounts","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-anmeldung-konten",{"rel":272,"titel":273,"zu":274},"richtlinien-anhang\u002Frichtlinien-geraete-wechselmedien","Devices and removable media","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-geraete-wechselmedien",{"rel":276,"titel":277,"zu":278},"richtlinien-anhang\u002Frichtlinien-kernschutz","Kernel protection","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-kernschutz",{"rel":280,"titel":281,"zu":282},"richtlinien-anhang\u002Frichtlinien-laufwerksverschluesselung","Drive encryption","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-laufwerksverschluesselung",{"rel":284,"titel":285,"zu":286},"richtlinien-anhang\u002Frichtlinien-windows-update","Windows Update","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-windows-update",{"rel":288,"titel":289,"zu":290},"richtlinien-anhang\u002Frichtlinien-grundeinstellungen","Defaults and privacy settings","\u002Fen\u002Fdocumentation\u002Frichtlinien-anhang\u002Frichtlinien-grundeinstellungen",null,1793199127419]