Hallo,

jeden Tag habe ich in meinem Caching-DNS (Resolver) folgendes im Logwatch-Mail (mehr oder weniger solcher Einträge)

error (unexpected RCODE REFUSED) resolving '12.134.59.64.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 1 Time(s) error (unexpected RCODE REFUSED) resolving '137.165.71.96.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 1 Time(s) error (unexpected RCODE REFUSED) resolving '138.136.59.64.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 1 Time(s) error (unexpected RCODE REFUSED) resolving '142.14.188.209.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 1 Time(s) error (unexpected RCODE REFUSED) resolving '155.60.236.81.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 1 Time(s) error (unexpected RCODE REFUSED) resolving '169.215.85.209.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 1 Time(s) error (unexpected RCODE REFUSED) resolving '174.44.70.70.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 2 Time(s) error (unexpected RCODE REFUSED) resolving '187.199.179.77.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 1 Time(s) error (unexpected RCODE REFUSED) resolving '2.181.132.209.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 9 Time(s) error (unexpected RCODE REFUSED) resolving '200.59.165.142.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 1 Time(s) error (unexpected RCODE REFUSED) resolving '210.151.1.194.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 1 Time(s) error (unexpected RCODE REFUSED) resolving '223.143.194.185.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 12 Time(s) error (unexpected RCODE REFUSED) resolving '232.145.249.72.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 1 Time(s) error (unexpected RCODE REFUSED) resolving '25.141.235.209.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 1 Time(s) error (unexpected RCODE REFUSED) resolving '26.15.123.68.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 1 Time(s) error (unexpected RCODE REFUSED) resolving '3.11.211.140.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 1 Time(s) error (unexpected RCODE REFUSED) resolving '64.216.149.109.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 1 Time(s) error (unexpected RCODE REFUSED) resolving '9.134.59.64.dnsbl.sorbs.net/A/IN': 87.106.246.125#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving '12.134.59.64.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving '13.134.59.64.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving '137.165.71.96.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving '156.93.37.173.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving '174.200.9.192.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving '174.44.70.70.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving '175.31.37.50.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving '187.199.179.77.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving '2.181.132.209.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 7 Time(s) error (unexpected RCODE SERVFAIL) resolving '210.151.1.194.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving '223.143.194.185.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 10 Time(s) error (unexpected RCODE SERVFAIL) resolving '236.80.84.135.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving '3.92.72.195.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving '36.200.9.192.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving '53.79.148.198.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 2 Time(s) error (unexpected RCODE SERVFAIL) resolving '64.216.149.109.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving '80.86.37.173.dnsbl.sorbs.net/A/IN': 174.36.198.232#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving 'primary.lp.se/A/IN': 192.36.115.53#53: 2 Time(s) error (unexpected RCODE SERVFAIL) resolving 'primary.lp.se/A/IN': 2001:470:df3c::53#53: 2 Time(s) error (unexpected RCODE SERVFAIL) resolving 'primary.lp.se/A/IN': 2a00:16d8:2:300:216:3cff:fea1:8ed5#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving 'primary.lp.se/A/IN': 91.123.201.115#53: 3 Time(s) error (unexpected RCODE SERVFAIL) resolving 'primary.lp.se/AAAA/IN': 2a00:16d8:2:300:216:3cff:fea1:8ed5#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving 'secondary.lp.se/A/IN': 192.36.115.53#53: 2 Time(s) error (unexpected RCODE SERVFAIL) resolving 'secondary.lp.se/A/IN': 2001:470:df3c::53#53: 3 Time(s) error (unexpected RCODE SERVFAIL) resolving 'secondary.lp.se/A/IN': 2a00:16d8:2:300:216:3cff:fea1:8ed5#53: 2 Time(s) error (unexpected RCODE SERVFAIL) resolving 'secondary.lp.se/A/IN': 91.123.201.115#53: 3 Time(s) error (unexpected RCODE SERVFAIL) resolving 'secondary.lp.se/AAAA/IN': 192.36.115.53#53: 1 Time(s) error (unexpected RCODE SERVFAIL) resolving 'secondary.lp.se/AAAA/IN': 2a00:16d8:2:300:216:3cff:fea1:8ed5#53: 1 Time(s)

meine VMs mit Linux (CentOS) haben zwar einen postfix laufen, aber keiner bewußt eine DNS blacklist configuriert; macht das der Mailclient, oder gar der Browser, wer verursacht diese Abfragen, welche anscheinend aus welchen Gründen auch immer scheitern?

Danke, Walter