Hi,
I have something bizarre happening: I serve some web sites, including
http://www.dynamiccompany.co.uk and even though I've stopped apache (apachectl
stop), I can still ping the web site:
[EMAIL PROTECTED]:~$ ping www.dynamiccompany.co.uk
PING dynamiccompany.co.uk (213.131.168.136): 56 data bytes
64 bytes from 213.131.168.136: icmp_seq=0 ttl=245 time=27.8 ms
64 bytes from 213.131.168.136: icmp_seq=1 ttl=245 time=23.0 ms
--- dynamiccompany.co.uk ping statistics ---
2 packets transmitted, 2 packets received, 0% packet loss
round-trip min/avg/max = 23.0/25.4/27.8 ms
[EMAIL PROTECTED]:~$
So, I do a traceroute (from a remote box):
[EMAIL PROTECTED]:~$ traceroute www.dynamiccompany.co.uk
traceroute to dynamiccompany.co.uk (213.131.168.136), 30 hops max, 38 byte
packets
1 172.20.103.254 (172.20.103.254) 9.735 ms 25.230 ms 10.375 ms
2 rdg-cam1-a-fa00.inet.ntl.com (213.105.91.49) 10.078 ms 14.060 ms 12.956
ms
3 bre-t2core-a-pos49.inet.ntl.com (62.253.64.165) 10.900 ms 18.956 ms
50.684 ms
4 bre-bb-a-so-330-0.inet.ntl.com (62.253.185.57) 12.658 ms 13.755 ms
14.886 ms
5 gfd-bb-b-so-700-0.inet.ntl.com (213.105.172.150) 15.009 ms 15.474 ms
25.388 ms
6 linx-ic-2-so-100-0.inet.ntl.com (62.253.185.74) 18.645 ms 55.592 ms
15.737 ms
7 linx4.newnet.co.uk (195.66.225.131) 20.428 ms 16.976 ms 27.521 ms
8 atm1.th.newnet.co.uk (212.87.77.21) 18.044 ms 17.804 ms 20.383 ms
9 atm1.cams.newnet.co.uk (212.87.77.154) 19.826 ms 27.832 ms 19.748 ms
10 my web server
Of these, only 172.20.103.254 is unknown
whois 172.20.103.254:
IANA (IANA-BBLK-RESERVED)
Internet Assigned Numbers Authority
4676 Admiralty Way, Suite 330
Marina del Rey, CA 90292-6695
US
Netname: IANA-BBLK-RESERVED
Netblock: 172.16.0.0 - 172.31.255.255
Coordinator:
Internet Corporation for Assigned Names and Numbers (IANA-ARIN) [EMAIL
PROTECTED]
(310) 823-9358
Domain System inverse mapping provided by:
BLACKHOLE-1.IANA.ORG 192.0.32.18
BLACKHOLE-2.IANA.ORG 192.0.32.19
These blocks are reserved for special purposes.
Please see RFC 1918 for additional information.
So, are ntl or newnet (where the box is located) caching (aggressively) or is
there a different issue? Can anybody else ping www.dynamiccompany.co.uk (who
aren't with ntl) - this could at least remove ntl from the equation.
Any thoughts? I'm a bit stumped.
All help greatly appreciated.
Keith
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