1
For about a week I've been having trouble accessing a website I frequently visit from my laptop in my apartment. (The domain is http://www.irishgaelictranslator.com if it matters.) Symptoms are as follows:
- Whenever I try to access the site normally (i.e. in a browser) the connection times out.
- Trying to resolve the site name on DNS using
dig +showsearch +trace www.irishgaelictranslator.com
ends with the message "connection timed out; no servers could be reached".dig
is able to retrieve the NS records for the domain, which specify the nameserversns1.irish-sayings.com.
(207.58.181.154) andns2.irish-sayings.com.
(207.58.181.155). It times out trying to connect to either of those servers. - The IP address for
www.irishgaelictranslator.com
is 207.58.181.154, and attempts to ping that IP address are unsuccessful. The connection times out. - When running
traceroute
the trace reaches up tosc-smv1461.servint.net (209.50.237.172)
(step 21) with no problems or delays, and then I get just* * *
after that.
So far it just sounds like the server is down. But here's the weird thing: I have no problems accessing http://www.irishgaelictranslator.com from any other computer. I also have no problems accessing any other websites from my laptop. As far as I can tell, it's only the one particular combination of my laptop in my apartment and this one website that is causing problems. (I haven't tried taking my laptop elsewhere, but that's probably next on my list)
What sort of diagnostics can/should I run to try to figure out what's going on here? As mentioned, I've already tried ping
, traceroute
, and dig
, and I've also fired up Wireshark during all three of these to see if it showed anything useful, but I haven't seen anything that signals a problem to me. (I'm not the greatest networking expert, I could be missing something) Is there anything else to do?
As the tags suggest, I primarily run Linux, but I do have Windows available to test with as well. (I have the same connectivity problems to the website when I'm running Windows, so it's not an operating-system-dependent problem.)
EDIT: The problem turned out to be that my IP address was blacklisted by the server's firewall. No idea how it got on the blacklist, but the site admin removed it and the connection works now. Anyway, even though my specific problem has been resolved, I'm still interested in any more suggestions as to tests I could have done to gather useful information.
2Can you ping and tracert from another computer? If you can't they are probably blocking ICMP, so throw those tests out the window. – MDMarra – 2009-08-15T03:08:06.690
I can't ping them -- I also get to sc-smv1461.servint.net. Can't connect to the site at the moment either... – John Fouhy – 2009-08-15T03:32:56.627
@MarkM: yes, both work fine from another computer. Good point though. – David Z – 2009-08-15T15:34:44.133
Brilliant that it is solved! I can't believe how many admin's bulk block IPs because one or two people give them trouble! Glad my answer solved it for you! – William Hilsum – 2009-08-15T18:35:45.643
@Wil: Not that your answer wasn't a good one, but actually the problem was solved independently when someone at the host just decided to check the firewall. It had nothing to do with any of the answers here. – David Z – 2009-08-17T22:56:15.627