Datum a čas: 2023-12-17 14:00 CET Očekavaná délka: 60 minut Oznámení se týká serverů: Brno Typ výpadku: network Důvod: Vypadky site kvuli DDoS Výpadek řeší: Pavel Šnajdr, Jakub Skokan Jeden ze clenu byl zasazen prichozim DDoSem, ktery vygradoval postupne pres 40 Gbit. Snazili jsme se ho zablokovat filtrovanim na strane naseho ISP (MasterDC), ale museli jsme odstavit celou cilovou IP adresu, abychom se vyhnuli packet lossu, jak se ten DDoS zvetsoval pridavanim novych zdrojovych adres. ENGLISH: Date and time: 2023-12-17 14:00 CET Expected duration: 60 minutes Affected systems: Brno Outage type: network Reason: Network issues due to DDoS Handled by: Pavel Šnajdr, Jakub Skokan One of our members experienced incoming DDoS, which escalated to over 40 Gbps. We've tried to block it through filtering at our ISP level (MasterDC), but had to block the whole IP to mitigate ongoing packet loss as the DDoS kept increasing by adding new sources. -----BEGIN BASE64 ENCODED PARSEABLE JSON----- eyJpZCI6MTA1OCwicGxhbm5lZCI6ZmFsc2UsImJlZ2luc19hdCI6IjIwMjMt MTItMTdUMTQ6MDA6MDArMDE6MDAiLCJkdXJhdGlvbiI6NjAsInR5cGUiOiJu ZXR3b3JrIiwiZW50aXRpZXMiOlt7Im5hbWUiOiJMb2NhdGlvbiIsImlkIjo0 LCJsYWJlbCI6IkJybm8ifV0sImhhbmRsZXJzIjpbIlBhdmVsIMWgbmFqZHIi LCJKYWt1YiBTa29rYW4iXSwidHJhbnNsYXRpb25zIjp7ImVuIjp7InN1bW1h cnkiOiJOZXR3b3JrIGlzc3VlcyBkdWUgdG8gRERvUyIsImRlc2NyaXB0aW9u IjoiT25lIG9mIG91ciBtZW1iZXJzIGV4cGVyaWVuY2VkIGluY29taW5nIERE b1MsIHdoaWNoIGVzY2FsYXRlZCB0byBvdmVyIDQwIEdicHMuIFdlJ3ZlIHRy aWVkIHRvIGJsb2NrIGl0IHRocm91Z2ggZmlsdGVyaW5nIGF0IG91ciBJU1Ag bGV2ZWwgKE1hc3RlckRDKSwgYnV0IGhhZCB0byBibG9jayB0aGUgd2hvbGUg SVAgdG8gbWl0aWdhdGUgb25nb2luZyBwYWNrZXQgbG9zcyBhcyB0aGUgRERv UyBrZXB0IGluY3JlYXNpbmcgYnkgYWRkaW5nIG5ldyBzb3VyY2VzLiJ9LCJj cyI6eyJzdW1tYXJ5IjoiVnlwYWRreSBzaXRlIGt2dWxpIEREb1MiLCJkZXNj cmlwdGlvbiI6IkplZGVuIHplIGNsZW51IGJ5bCB6YXNhemVuIHByaWNob3pp bSBERG9TZW0sIGt0ZXJ5IHZ5Z3JhZG92YWwgcG9zdHVwbmUgcHJlcyA0MCBH Yml0LiBTbmF6aWxpIGpzbWUgc2UgaG8gemFibG9rb3ZhdCBmaWx0cm92YW5p bSBuYSBzdHJhbmUgbmFzZWhvIElTUCAoTWFzdGVyREMpLCBhbGUgbXVzZWxp IGpzbWUgb2RzdGF2aXQgY2Vsb3UgY2lsb3ZvdSBJUCBhZHJlc3UsIGFieWNo b20gc2UgdnlobnVsaSBwYWNrZXQgbG9zc3UsIGphayBzZSB0ZW4gRERvUyB6 dmV0c292YWwgcHJpZGF2YW5pbSBub3Z5Y2ggemRyb2pvdnljaCBhZHJlcy4i fX19 -----END BASE64 ENCODED PARSEABLE JSON-----