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unable to access www.quibids.com
From: Martin T <m4rtntns () gmail com>
Date: Sun, 17 Apr 2011 15:22:16 +0300

Hi,
I'm not able to access www.quibids.com from 80.235.40.0/23 network.
ICMP works fine:

# ping -qc10 www.quibids.com
PING www.quibids.com (98.188.122.9) 56(84) bytes of data.

--- www.quibids.com ping statistics ---
10 packets transmitted, 10 received, 0% packet loss, time 9008ms
rtt min/avg/max/mdev = 177.945/184.595/199.460/5.782 ms
#

..but SYN packet to www.quibids.com:80..

SENT (0.3280s) TCP 192.168.1.65:38459 > 98.188.122.19:80 S ttl=58
id=32424 iplen=44  seq=3577373933 win=3072 <mss 1460>

..does not receive SYN+ACK. If I try to open www.quibids.com in Fx, I
get the "The connection has timed out" error. However, if I use
http://www.t1shopper.com/tools/port-scan/ tool, port 80 is open and if
I google for "cache:http://www.quibids.com/";, the Google cache gets
updated so the page needs to be accessible at least from some
networks. Is it somehow possible to detect, whether the traffic to
port 80 gets filtered by the quibids.com or somewhere along the path?
In other words how to trace out the exact machine, which drops the SYN
packet to port 80?


regards,
martin

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