Salut, J'ai remarqué quelque chose de récurrent sur les NS Américains chez Gandi . Il y a très très souvent des timeout, parfois plusieur fois par jour, j'utilise un resolveur local sans cache pour mon boulot donc je me rends compte des DNS failure sur Firefox / Chrome. J'aurai voulu savoir comment les contacter, je trouve ça vraiment dommage d'avoir autant de problèmes ici. ( Je ne crois pas que ça soit le cas en France / Europe. )
Un petit exemple des problèmes rencontrés ( j'utilise PowerDNS ) May 22 11:36:34 me pdns_recursor[5938]: 1 [7] question for 'jeuxonline.info.| A' from 127.0.0.1 May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: Looking for CNAME cache hit of 'jeuxonline.info.|CNAME' May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: No CNAME cache hit of 'jeuxonline.info.|CNAME' found May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: No cache hit for 'jeuxonline.info.|A', trying to find an appropriate NS record May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: Checking if we have NS in cache for 'jeuxonline.info.' May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: NS (with ip, or non-glue) in cache for 'jeuxonline.info.' -> 'a.dns.gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: within bailiwick: 0, not in cache / did not look at cache May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: NS (with ip, or non-glue) in cache for 'jeuxonline.info.' -> 'b.dns.gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: within bailiwick: 0, not in cache / did not look at cache May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: NS (with ip, or non-glue) in cache for 'jeuxonline.info.' -> 'c.dns.gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: within bailiwick: 0, not in cache / did not look at cache May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: We have NS in cache for 'jeuxonline.info.' (flawedNSSet=0) May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: Cache consultations done, have 3 NS to contact May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: Nameservers: c.dns.gandi.net.(0ms), b.dns.gandi.net.(0ms), a.dns.gandi.net.(0ms) May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: Trying to resolve NS 'c.dns.gandi.net.' (1/3) May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: Looking for CNAME cache hit of 'c.dns.gandi.net.|CNAME' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: No CNAME cache hit of 'c.dns.gandi.net.|CNAME' found May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: No cache hit for 'c.dns.gandi.net.|A', trying to find an appropriate NS record May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: Checking if we have NS in cache for 'c.dns.gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: no valid/ useful NS in cache for 'c.dns.gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: Checking if we have NS in cache for 'dns.gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: no valid/ useful NS in cache for 'dns.gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: Checking if we have NS in cache for 'gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: NS (with ip, or non-glue) in cache for 'gandi.net.' -> 'dns0.gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: within bailiwick: 1, in cache, ttl=86399 May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: NS (with ip, or non-glue) in cache for 'gandi.net.' -> 'dns1.gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: within bailiwick: 1, in cache, ttl=86399 May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: NS (with ip, or non-glue) in cache for 'gandi.net.' -> 'dns2.gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: within bailiwick: 1, in cache, ttl=86399 May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: NS (with ip, or non-glue) in cache for 'gandi.net.' -> 'dns3.gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: within bailiwick: 1, in cache, ttl=86399 May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: We have NS in cache for 'gandi.net.' (flawedNSSet=0) May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: Cache consultations done, have 4 NS to contact May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: Nameservers: dns2.gandi.net.(0ms), dns3.gandi.net.(0ms), dns0.gandi.net.(0ms), May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: dns1.gandi.net.(0ms) May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: Trying to resolve NS 'dns2.gandi.net.' (1/4) May 22 11:36:34 me pdns_recursor[5938]: [7] dns2.gandi.net.: Looking for CNAME cache hit of 'dns2.gandi.net.|CNAME' May 22 11:36:34 me pdns_recursor[5938]: [7] dns2.gandi.net.: No CNAME cache hit of 'dns2.gandi.net.|CNAME' found May 22 11:36:34 me pdns_recursor[5938]: [7] dns2.gandi.net.: Found cache hit for A: 217.70.183.211[ttl=86399] May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: Resolved 'gandi.net.' NS dns2.gandi.net. to: 217.70.183.211 May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: Trying IP 217.70.183.211:53, asking 'c.dns.gandi.net.|A' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: Got 9 answers from dns2.gandi.net. (217.70.183.211), rcode=0, in 119ms May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: accept answer 'c.dns.gandi.net.|A|217.70.182.20' from 'gandi.net.' nameservers? YES! May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: accept answer 'gandi.net.|NS|dns1.gandi.net.' from 'gandi.net.' nameservers? YES! May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: accept answer 'gandi.net.|NS|dns0.gandi.net.' from 'gandi.net.' nameservers? YES! May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: accept answer 'gandi.net.|NS|dns2.gandi.net.' from 'gandi.net.' nameservers? YES! May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: accept answer 'gandi.net.|NS|dns3.gandi.net.' from 'gandi.net.' nameservers? YES! May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: accept answer 'dns0.gandi.net.|A|217.70.177.39' from 'gandi.net.' nameservers? YES! May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: accept answer 'dns1.gandi.net.|A|217.70.177.45' from 'gandi.net.' nameservers? YES! May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: accept answer 'dns2.gandi.net.|A|217.70.183.211' from 'gandi.net.' nameservers? YES! May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: accept answer 'dns3.gandi.net.|A|217.70.179.36' from 'gandi.net.' nameservers? YES! May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: determining status after receiving this packet May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: answer is in: resolved to '217.70.182.20|A' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: got upwards/ level NS record 'gandi.net.' -> 'dns1.gandi.net.', had 'gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: got upwards/ level NS record 'gandi.net.' -> 'dns0.gandi.net.', had 'gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: got upwards/ level NS record 'gandi.net.' -> 'dns2.gandi.net.', had 'gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: got upwards/ level NS record 'gandi.net.' -> 'dns3.gandi.net.', had 'gandi.net.' May 22 11:36:34 me pdns_recursor[5938]: [7] c.dns.gandi.net.: status=got results, this level of recursion done May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: Resolved 'jeuxonline.info.' NS c.dns.gandi.net. to: 217.70.182.20 May 22 11:36:34 me pdns_recursor[5938]: [7] jeuxonline.info.: Trying IP 217.70.182.20:53, asking 'jeuxonline.info.|A' May 22 11:36:35 me pdns_recursor[5938]: [7] jeuxonline.info.: timeout resolving May 22 11:36:35 me pdns_recursor[5938]: [7] jeuxonline.info.: Trying to resolve NS 'b.dns.gandi.net.' (2/3) May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: Looking for CNAME cache hit of 'b.dns.gandi.net.|CNAME' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: No CNAME cache hit of 'b.dns.gandi.net.|CNAME' found May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: No cache hit for 'b.dns.gandi.net.|A', trying to find an appropriate NS record May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: Checking if we have NS in cache for 'b.dns.gandi.net.' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: no valid/ useful NS in cache for 'b.dns.gandi.net.' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: Checking if we have NS in cache for 'dns.gandi.net.' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: no valid/ useful NS in cache for 'dns.gandi.net.' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: Checking if we have NS in cache for 'gandi.net.' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: NS (with ip, or non-glue) in cache for 'gandi.net.' -> 'dns0.gandi.net.' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: within bailiwick: 1, in cache, ttl=86399 May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: NS (with ip, or non-glue) in cache for 'gandi.net.' -> 'dns1.gandi.net.' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: within bailiwick: 1, in cache, ttl=86399 May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: NS (with ip, or non-glue) in cache for 'gandi.net.' -> 'dns2.gandi.net.' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: within bailiwick: 1, in cache, ttl=86399 May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: NS (with ip, or non-glue) in cache for 'gandi.net.' -> 'dns3.gandi.net.' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: within bailiwick: 1, in cache, ttl=86399 May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: We have NS in cache for 'gandi.net.' (flawedNSSet=0) May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: Cache consultations done, have 4 NS to contact May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: Nameservers: dns0.gandi.net.(0ms), dns3.gandi.net.(0ms), dns2.gandi.net.(0ms), May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: dns1.gandi.net.(0ms) May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: Trying to resolve NS 'dns0.gandi.net.' (1/4) May 22 11:36:35 me pdns_recursor[5938]: [7] dns0.gandi.net.: Looking for CNAME cache hit of 'dns0.gandi.net.|CNAME' May 22 11:36:35 me pdns_recursor[5938]: [7] dns0.gandi.net.: No CNAME cache hit of 'dns0.gandi.net.|CNAME' found May 22 11:36:35 me pdns_recursor[5938]: [7] dns0.gandi.net.: Found cache hit for A: 217.70.177.39[ttl=86399] May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: Resolved 'gandi.net.' NS dns0.gandi.net. to: 217.70.177.39 May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: Trying IP 217.70.177.39:53, asking 'b.dns.gandi.net.|A' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: Got 9 answers from dns0.gandi.net. (217.70.177.39), rcode=0, in 118ms May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: accept answer 'b.dns.gandi.net.|A|217.70.184.40' from 'gandi.net.' nameservers? YES! May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: accept answer 'gandi.net.|NS|dns1.gandi.net.' from 'gandi.net.' nameservers? YES! May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: accept answer 'gandi.net.|NS|dns3.gandi.net.' from 'gandi.net.' nameservers? YES! May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: accept answer 'gandi.net.|NS|dns0.gandi.net.' from 'gandi.net.' nameservers? YES! May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: accept answer 'gandi.net.|NS|dns2.gandi.net.' from 'gandi.net.' nameservers? YES! May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: accept answer 'dns0.gandi.net.|A|217.70.177.39' from 'gandi.net.' nameservers? YES! May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: accept answer 'dns1.gandi.net.|A|217.70.177.45' from 'gandi.net.' nameservers? YES! May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: accept answer 'dns2.gandi.net.|A|217.70.183.211' from 'gandi.net.' nameservers? YES! May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: accept answer 'dns3.gandi.net.|A|217.70.179.36' from 'gandi.net.' nameservers? YES! May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: determining status after receiving this packet May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: answer is in: resolved to '217.70.184.40|A' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: got upwards/ level NS record 'gandi.net.' -> 'dns1.gandi.net.', had 'gandi.net.' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: got upwards/ level NS record 'gandi.net.' -> 'dns3.gandi.net.', had 'gandi.net.' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: got upwards/ level NS record 'gandi.net.' -> 'dns0.gandi.net.', had 'gandi.net.' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: got upwards/ level NS record 'gandi.net.' -> 'dns2.gandi.net.', had 'gandi.net.' May 22 11:36:35 me pdns_recursor[5938]: [7] b.dns.gandi.net.: status=got results, this level of recursion done May 22 11:36:35 me pdns_recursor[5938]: [7] jeuxonline.info.: Resolved 'jeuxonline.info.' NS b.dns.gandi.net. to: 217.70.184.40 May 22 11:36:35 me pdns_recursor[5938]: [7] jeuxonline.info.: Trying IP 217.70.184.40:53, asking 'jeuxonline.info.|A' May 22 11:36:37 me pdns_recursor[5938]: [7] jeuxonline.info.: timeout resolving May 22 11:36:37 me pdns_recursor[5938]: [7] jeuxonline.info.: Trying to resolve NS 'a.dns.gandi.net.' (3/3) May 22 11:36:37 me pdns_recursor[5938]: [7] a.dns.gandi.net.: Looking for CNAME cache hit of 'a.dns.gandi.net.|CNAME' May 22 11:36:37 me pdns_recursor[5938]: [7] a.dns.gandi.net.: No CNAME cache hit of 'a.dns.gandi.net.|CNAME' found May 22 11:36:37 me pdns_recursor[5938]: [7] a.dns.gandi.net.: Found cache hit for A: 173.246.97.2[ttl=86396] May 22 11:36:37 me pdns_recursor[5938]: [7] jeuxonline.info.: Resolved 'jeuxonline.info.' NS a.dns.gandi.net. to: 173.246.97.2 May 22 11:36:37 me pdns_recursor[5938]: [7] jeuxonline.info.: Trying IP 173.246.97.2:53, asking 'jeuxonline.info.|A' May 22 11:36:37 me pdns_recursor[5938]: [7] jeuxonline.info.: query throttled May 22 11:36:37 me pdns_recursor[5938]: [7] jeuxonline.info.: Failed to resolve via any of the 3 offered NS at level 'jeuxonline.info.' May 22 11:36:37 me pdns_recursor[5938]: [7] jeuxonline.info.: failed (res=-1) May 22 11:36:37 me pdns_recursor[5938]: 1 [7] answer to question 'jeuxonline.info.|A': 0 answers, 0 additional, took 4 packets, 1 throttled, 2 timeouts, 0 tcp connections, rcode=2 Et le traceroute habituel: root@me:~# paris-traceroute -p icmp 217.70.184.40 traceroute [(192.168.0.206:33456) -> (217.70.184.40:33457)], protocol icmp, algo hopbyhop, duration 2 s 1 192.168.0.1 (192.168.0.1) 0.423 ms 0.354 ms 0.347 ms 2 xxx 3 te4-1.crt01.mtlcx03.fibrenoire.ca (68.67.63.213) 1.001 ms 0.911 ms 1.019 ms MPLS Label 499 TTL=1 4 ge-6-7.car1.Montreal2.Level3.net (4.59.177.41) 0.763 ms 0.822 ms 0.886 ms 5 ae-5-5.ebr2.NewYork1.Level3.net (4.69.141.6) 8.336 ms !T2 8.373 ms !T2 8.515 ms !T2 MPLS Label 1134 TTL=1 6 ae-62-62.csw1.NewYork1.Level3.net (4.69.148.34) 14.616 ms !T3 13.848 ms !T3 14.030 ms !T3 MPLS Label 1110 TTL=1 7 ae-61-61.ebr1.NewYork1.Level3.net (4.69.134.65) 8.375 ms !T4 8.415 ms ! T4 8.336 ms !T4 MPLS Label 1493 TTL=1 8 ae-2-2.ebr1.Newark1.Level3.net (4.69.132.98) 8.705 ms !T5 8.862 ms !T5 8.772 ms !T5 MPLS Label 1161 TTL=1 9 ae-1-100.ebr2.Newark1.Level3.net (4.69.132.6) 9.116 ms !T6 8.812 ms !T6 8.742 ms !T6 MPLS Label 1402 TTL=1 10 ae-5-5.car1.Baltimore1.Level3.net (4.69.134.102) 12.473 ms 12.412 ms 12.368 ms 11 GANDI-SAS.car1.Baltimore1.Level3.net (4.59.244.66) 12.900 ms 12.758 ms 21.360 ms 12 4xe-pc400.vdist1-dc1.balt.gandi.net (173.246.96.34) 12.910 ms 12.973 ms 12.880 ms MPLS Label 176 TTL=1 13 b.dns.gandi.net (217.70.184.40) 13.879 ms 14.038 ms 12.986 ms --------------------------- Liste de diffusion du FRnOG http://www.frnog.org/
