Hi, We had a similar situation before, in that case, not the nodesix server was blacklisted, but almost all ugandan ISP ones. With the IPs that were blocked back then, all seems to be fine:
http://www.spamhaus.org/query/bl?ip=41.202.225.145 Orange http://www.spamhaus.org/query/bl?ip=41.202.225.146 More Orange (so, back then, orange used at least 2 public ips for their proxy servers) In our case it was apache's mod_security that was blocking IPs based on blacklists. -- rgds, Reinier Battenberg Director Mountbatten Ltd. +256 758 801 749 www.mountbatten.net On Wednesday 23 March 2011 13:45:24 David Gelvin wrote: > On Wed, Mar 23, 2011 at 1:18 PM, Jason Kinene Ssemakula > > <[email protected]>wrote: > > Hi fellow competitor :-) > > > > the browser gives the standard cannot find this page error. And during > > the time the server is 'blocked', we can't ping it... > > I can confirm that that host is accessible through MTN (and others) but not > through Orange. It doesn't look like just a proxy issue- the host responds > to pings from other ISPs, but not from Orange. > > Is it possible that the host is running some sort of active intrusion > detection system that may be blocking Orange IPs, perhaps after some sort > of suspicious behavior (repeated failed login attempts, etc...)? > > It doesn't seem to be a routing issue as some neighboring IPs > (96.30.62.147; 96.30.62.150) are perfectly accessible. > > I can only think of three possibilities: > > 1. Orange is blocking that specific IP address explicitly (seems very > unlikely) > 2. That host has some active filter / configuration that is filtering > Orange IP addresses. > 3. That host's routing tables are misconfigured in such a manner that it > can't route to Orange IPs.
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