C'e' in corso un attacco di tipo DrDOS, chi ha un server ntp dentro Ninux deve controllare di avere la configurazione giusta. Girate alle varie mailing lists delle isole.
Riferimenti: http://support.ntp.org/bin/view/Main/SecurityNotice#DRDoS_Amplification_Attack_using Understanding and mitigating NTP-based DDoS attacks (by John Graham-Cumming) http://blog.cloudflare.com/understanding-and-mitigating-ntp-based-ddos-attacks DRDoS / Amplification Attack using ntpdc monlist command http://support.ntp.org/bin/view/Main/SecurityNotice#DRDoS_Amplification_Attack_using Team Cymru - Secure NTP Template https://www.team-cymru.org/ReadingRoom/Templates/secure-ntp-template.html Vulnerability Summary for CVE-2013-5211 http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-5211 CERT/CC Vulnerability Note VU#348126 - NTP can be abused to amplify denial-of-service attack traffic http://www.kb.cert.org/vuls/id/348126 Juniper - Mitigation of NTP amplification attacks involving JunOS http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10613&actp=SUBSCRIPTION US-CERT Alert (TA14-013A) - NTP Amplification Attacks Using CVE-2013-5211 https://www.us-cert.gov/ncas/alerts/TA14-013A NTP DoS reflection attacks by Patrikas Kugrinas https://cert.litnet.lt/en/docs/ntp-distributed-reflection-dos-attacks Hackers Spend Christmas Break Launching Large Scale NTP-Reflection Attacks http://www.symantec.com/connect/blogs/hackers-spend-christmas-break-launching-large-scale-ntp-reflection-attacks _______________________________________________ Wireless mailing list [email protected] http://ml.ninux.org/mailman/listinfo/wireless
