Observé cet après-midi : le site était accessible par intermittence. Quand il était inaccessible, le ping ICMP passait toujours, mais les connexions HTTPS s'arrêtaient au « Client hello » :
$ curl -v https://lafibre.info/unread/?all
* Trying 2a01:6e00:10:410::2...
* connect to 2a01:6e00:10:410::2 port 443 failed: Aucun chemin d'accès pour atteindre l'hôte cible
* Trying 46.227.16.8...
* Connected to lafibre.info (46.227.16.8) port 443 (#0)
* ALPN, offering http/1.1
* Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH
* successfully set certificate verify locations:
* CAfile: /etc/ssl/certs/ca-certificates.crt
CApath: none
* TLSv1.2 (OUT), TLS header, Certificate Status (22):
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
^C
Peut-être qu'elles lâchaient après un certain nombre de paquets ou d'octets transférés ?
Le routage était largement déréglé. À un moment donné, 4 traceroutes successives donnaient 4 chemins différents :
$ traceroute lafibre.info
traceroute to lafibre.info (46.227.16.8), 30 hops max, 60 byte packets
1 box (192.168.1.1) 4.223 ms 4.218 ms 4.194 ms
2 129.120.16.109.rev.sfr.net (109.16.120.129) 24.747 ms 26.275 ms 26.311 ms
3 181.45.66.86.rev.sfr.net (86.66.45.181) 28.636 ms 28.696 ms 30.073 ms
4 250.29.3.109.rev.sfr.net (109.3.29.250) 42.127 ms 42.137 ms 42.126 ms
5 225.122.3.109.rev.sfr.net (109.3.122.225) 42.102 ms 42.112 ms 42.101 ms
6 222.122.3.109.rev.sfr.net (109.3.122.222) 43.618 ms 36.058 ms 35.882 ms
7 te0-7-0-28.ccr21.par04.atlas.cogentco.com (149.11.114.149) 34.272 ms 32.008 ms 31.958 ms
8 be2309.ccr42.par01.atlas.cogentco.com (154.54.73.241) 33.399 ms 35.913 ms be2308.ccr41.par01.atlas.cogentco.com (154.54.73.229) 35.960 ms
9 be2489.ccr42.lon13.atlas.cogentco.com (154.54.39.113) 43.639 ms 38.569 ms 38.539 ms
10 be2286.ccr41.lon13.atlas.cogentco.com (130.117.50.245) 116.183 ms be2657.ccr42.dca01.atlas.cogentco.com (154.54.31.109) 114.522 ms be2489.ccr42.par01.atlas.cogentco.com (154.54.39.114) 124.700 ms
11 be2171.ccr41.iad02.atlas.cogentco.com (154.54.31.106) 114.460 ms be2657.ccr41.iad02.atlas.cogentco.com (154.54.31.110) 116.090 ms be2148.ccr41.dca01.atlas.cogentco.com (154.54.31.117) 117.587 ms
12 be2657.ccr42.dca01.atlas.cogentco.com (154.54.31.109) 129.626 ms be2657.ccr41.iad02.atlas.cogentco.com (154.54.31.110) 121.036 ms be2657.ccr42.dca01.atlas.cogentco.com (154.54.31.109) 112.834 ms
13 be2096.ccr42.jfk02.atlas.cogentco.com (154.54.30.41) 116.288 ms be2148.ccr41.dca01.atlas.cogentco.com (154.54.31.117) 118.677 ms be2657.ccr41.iad02.atlas.cogentco.com (154.54.31.110) 112.754 ms
14 be2657.ccr42.dca01.atlas.cogentco.com (154.54.31.109) 118.650 ms be2171.ccr41.iad02.atlas.cogentco.com (154.54.31.106) 116.249 ms be2657.ccr42.dca01.atlas.cogentco.com (154.54.31.109) 124.310 ms
15 be2171.ccr41.dca01.atlas.cogentco.com (154.54.31.105) 121.207 ms 115.072 ms 118.242 ms
16 be2657.ccr42.dca01.atlas.cogentco.com (154.54.31.109) 115.028 ms 116.483 ms be2657.ccr41.iad02.atlas.cogentco.com (154.54.31.110) 118.277 ms
17 be2657.ccr41.iad02.atlas.cogentco.com (154.54.31.110) 115.051 ms be2171.ccr41.iad02.atlas.cogentco.com (154.54.31.106) 127.567 ms be2171.ccr41.dca01.atlas.cogentco.com (154.54.31.105) 121.798 ms
18 be2171.ccr41.dca01.atlas.cogentco.com (154.54.31.105) 126.697 ms be2171.ccr41.iad02.atlas.cogentco.com (154.54.31.106) 116.519 ms be2657.ccr42.dca01.atlas.cogentco.com (154.54.31.109) 118.870 ms
19 be2657.ccr41.iad02.atlas.cogentco.com (154.54.31.110) 122.947 ms be2171.ccr41.dca01.atlas.cogentco.com (154.54.31.105) 118.810 ms 118.782 ms
20 be2657.ccr42.dca01.atlas.cogentco.com (154.54.31.109) 121.353 ms be2657.ccr41.iad02.atlas.cogentco.com (154.54.31.110) 122.912 ms be2171.ccr41.iad02.atlas.cogentco.com (154.54.31.106) 122.871 ms
21 be2657.ccr41.iad02.atlas.cogentco.com (154.54.31.110) 121.316 ms 134.704 ms 134.618 ms
22 be2657.ccr42.dca01.atlas.cogentco.com (154.54.31.109) 116.517 ms be2171.ccr41.dca01.atlas.cogentco.com (154.54.31.105) 121.780 ms be2171.ccr41.iad02.atlas.cogentco.com (154.54.31.106) 120.036 ms
23 be2171.ccr41.iad02.atlas.cogentco.com (154.54.31.106) 119.523 ms 113.756 ms 116.303 ms
24 be2657.ccr41.iad02.atlas.cogentco.com (154.54.31.110) 120.570 ms be2657.ccr42.dca01.atlas.cogentco.com (154.54.31.109) 120.477 ms 119.647 ms
25 be2171.ccr41.dca01.atlas.cogentco.com (154.54.31.105) 119.668 ms 121.077 ms 118.129 ms
26 be2171.ccr41.iad02.atlas.cogentco.com (154.54.31.106) 122.519 ms be2657.ccr41.iad02.atlas.cogentco.com (154.54.31.110) 121.448 ms be2171.ccr41.dca01.atlas.cogentco.com (154.54.31.105) 123.552 ms
27 be2171.ccr41.dca01.atlas.cogentco.com (154.54.31.105) 123.466 ms be2657.ccr41.iad02.atlas.cogentco.com (154.54.31.110) 119.748 ms 119.689 ms
28 be2171.ccr41.iad02.atlas.cogentco.com (154.54.31.106) 123.390 ms be2657.ccr42.dca01.atlas.cogentco.com (154.54.31.109) 124.859 ms be2171.ccr41.iad02.atlas.cogentco.com (154.54.31.106) 121.699 ms
29 be2171.ccr41.dca01.atlas.cogentco.com (154.54.31.105) 119.901 ms be2171.ccr41.iad02.atlas.cogentco.com (154.54.31.106) 122.842 ms be2657.ccr41.iad02.atlas.cogentco.com (154.54.31.110) 133.299 ms
30 be2171.ccr41.iad02.atlas.cogentco.com (154.54.31.106) 124.265 ms 124.205 ms 125.803 ms
$ traceroute lafibre.info
traceroute to lafibre.info (46.227.16.8), 30 hops max, 60 byte packets
1 box (192.168.1.1) 3.894 ms 3.888 ms 3.873 ms
2 129.120.16.109.rev.sfr.net (109.16.120.129) 24.785 ms 24.835 ms 24.821 ms
3 181.45.66.86.rev.sfr.net (86.66.45.181) 26.255 ms 27.831 ms 27.823 ms
4 250.29.3.109.rev.sfr.net (109.3.29.250) 55.045 ms 55.078 ms 55.067 ms
5 225.122.3.109.rev.sfr.net (109.3.122.225) 55.053 ms 55.040 ms 55.025 ms
6 222.122.3.109.rev.sfr.net (109.3.122.222) 55.012 ms 46.354 ms 46.313 ms
7 te0-7-0-28.ccr21.par04.atlas.cogentco.com (149.11.114.149) 46.297 ms 32.458 ms 34.085 ms
8 149.11.115.22 (149.11.115.22) 33.994 ms 47.972 ms 49.439 ms
9 te-3-1-frlyo01-c6k1.rt.ielo.net (212.85.145.173) 59.438 ms 39.093 ms 40.572 ms
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *
$ traceroute lafibre.info
traceroute to lafibre.info (46.227.16.8), 30 hops max, 60 byte packets
1 box (192.168.1.1) 3.763 ms 3.760 ms 3.679 ms
2 129.120.16.109.rev.sfr.net (109.16.120.129) 24.822 ms 24.860 ms 24.845 ms
3 181.45.66.86.rev.sfr.net (86.66.45.181) 26.852 ms 26.897 ms 28.399 ms
4 ielo-lostoasissarl.sfinx.tm.fr (194.68.129.108) 35.253 ms 37.179 ms 37.245 ms
5 te-3-1-frlyo01-c6k1.rt.ielo.net (212.85.145.173) 46.306 ms 46.352 ms 47.881 ms
6 * * *
7 * * *
8 * * *
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 *^C
$ traceroute lafibre.info
traceroute to lafibre.info (46.227.16.8), 30 hops max, 60 byte packets
1 box (192.168.1.1) 4.726 ms 4.716 ms 4.695 ms
2 129.120.16.109.rev.sfr.net (109.16.120.129) 25.147 ms 26.677 ms 26.710 ms
3 181.45.66.86.rev.sfr.net (86.66.45.181) 28.521 ms 28.510 ms 30.063 ms
4 v3790.poi1-co-1.gaoland.net (84.96.251.169) 31.667 ms 35.337 ms 35.347 ms
5 186.244.5.109.rev.sfr.net (109.5.244.186) 38.858 ms 38.896 ms 38.887 ms
6 ae3.par72.ip4.gtt.net (141.136.100.213) 40.319 ms 33.521 ms 36.053 ms
7 xe-11-0-4.par22.ip4.gtt.net (141.136.111.109) 33.369 ms xe-11-0-7.par22.ip4.gtt.net (89.149.181.145) 32.187 ms 31.485 ms
8 as3356.par22.ip4.gtt.net (141.136.103.182) 33.496 ms 33.540 ms 35.759 ms
9 ae-5-5.car1.Geneva1.Level3.net (4.69.137.81) 45.310 ms 40.821 ms 42.284 ms
10 ae-5-5.car1.Geneva1.Level3.net (4.69.137.81) 42.294 ms 125.080 ms 124.977 ms
11 ADELI-SARL.car1.Geneva1.Level3.net (213.242.73.62) 133.707 ms 135.311 ms^C
Une traceroute en temps normal :
$ traceroute lafibre.info
traceroute to lafibre.info (46.227.16.8), 30 hops max, 60 byte packets
1 box (192.168.1.1) 3.758 ms 3.707 ms 3.677 ms
2 129.120.16.109.rev.sfr.net (109.16.120.129) 23.146 ms 25.099 ms 25.114 ms
3 181.45.66.86.rev.sfr.net (86.66.45.181) 72.110 ms 72.179 ms 72.166 ms
4 v3790.poi1-co-1.gaoland.net (84.96.251.169) 30.906 ms 30.892 ms 34.931 ms
5 adeli-l2.peers.lyonix.net (77.95.71.11) 48.465 ms 48.457 ms 48.437 ms
6 lafibre.info (46.227.16.8) 34.855 ms 24.547 ms 26.151 ms