PaulDotCom mailing list archives
odd lack of some internet connectivity
From: david.grubers at gmail.com (David Grubers)
Date: Mon, 3 Nov 2008 09:07:09 -0500
I can't really offer any advise, but I have the same issue with gmail.com in my dorm room. google.com will load happily, as well as several other sites, but gmail will take a good couple minutes. I know it isn't DNS, as my browser successfully looks up the IP and then the connection gets slow while it connects. I'm not sure if google analytics automatically is loaded by gmail, but if not, I notice that it often loads at this time too (perhaps my ISP is doing some monitoring with analytics?). 2008/11/3 Bugbear <gbugbear at gmail.com>:
I am not familar with Smoothwall but does that have any sort of IPS, application shaping, web filter, or app inspection in it? In my experience when I have had issues like this it almost always one of these types of products. I would put a system on the outside of Smoothwall and see if the issue can be reproduced - just to rule it out quickly. You can always throw wireshark inline too but taking the firewall appliance out of the equation would be where I star. Doesnt sound like a DNS issue since it saounds like some of the pages are loading partially and the FTP behavior you described. Could very well be the ISP and worth a call post taking the Firewall appliance out of the loop. Tim On Mon, Nov 3, 2008 at 8:15 AM, Robin Wood <dninja at gmail.com> wrote:Hi See if anyone can help me with this weird problem ... I've just been to see a friend at his company as he was complaining about not being able to access certain websites or certain parts of sites that used to work fine. My first thought was browser or local firewall problem so I took my laptop along to eliminate the possibility of that being the fault. After some playing we found a couple of sites (hotmail and part of the Ryan Air booking system) that just timed out when we tried to access them, this was through my laptop and through their machines. I've just tried the same sites 10 mins later at home and they are working fine so it isn't that the sites aren't down. I also tried hitting the site through netcat and again, it just timed out. It isn't a http vs https issue as I successfully visited a number of sites of both types. It isn't even just web traffic, the ftp connection they use to publish their website allowed us to login and get a directory listing of the root directory and change into a subdirectory but getting a directory listing of that directory timed out. The same connection works fine from my friends home network so it isn't a permissions issue. I'm at a loss of what to suggest, they are using smoothwall express v2 between their switch and modem but that hasn't been updated for months so is unlikely to be the cause, just in case it was playing up we tried rebooting it and the problem still persisted. The problem has been happening for over a month now but nothing has been changed in a lot longer than that so it shouldn't be a config issue. I've suggested talking to their ISP (BT) to see if they can suggest anything. Has anyone here got any suggestions of what to try, I'm completely stumped! Robin _______________________________________________ Pauldotcom mailing list Pauldotcom at mail.pauldotcom.com http://mail.pauldotcom.com/cgi-bin/mailman/listinfo/pauldotcom Main Web Site: http://pauldotcom.com_______________________________________________ Pauldotcom mailing list Pauldotcom at mail.pauldotcom.com http://mail.pauldotcom.com/cgi-bin/mailman/listinfo/pauldotcom Main Web Site: http://pauldotcom.com
Current thread:
- odd lack of some internet connectivity Robin Wood (Nov 03)
- odd lack of some internet connectivity Bugbear (Nov 03)
- odd lack of some internet connectivity David Grubers (Nov 03)
- odd lack of some internet connectivity Robin Wood (Nov 03)
- odd lack of some internet connectivity Richer Dinelle (Nov 03)
- odd lack of some internet connectivity Robin Wood (Nov 03)
- odd lack of some internet connectivity Richer Dinelle (Nov 03)
- odd lack of some internet connectivity Robin Wood (Nov 04)
- odd lack of some internet connectivity David Grubers (Nov 03)
- odd lack of some internet connectivity Bugbear (Nov 03)
- odd lack of some internet connectivity Bugbear (Nov 03)