Are you using CentOS 6? On 12/6/2011 8:31 AM, Casey Bralla wrote: > Interesting problem. Here are some things you might like to check (beyond > what you've already done). > > 1. Try SFTP from different servers behind the firewall. It may be > something as simple as a bum network card on one of your servers. > (although I would have thought your logs would have shown that) > > 2. Run Wireshark (or something similar) to listen in to the network > traffic during the transfer. You might get clues to the actual > transmission, or see some other disruptive traffic. > > 3. Watch the blinken lights and see if the network is congested, or just > something wrong with the transmission rate. > > 4. Verify that you don't have an IP conflict (2 devices with the same IP) > fighting for control. > > > Good luck! > > > >> One other piece of information... >> >> This "blockage" seems to be only for download (from server to >> internet). >> >> I tried sftp tests uploading data (from internet to server) and the >> transfer is fast as expected. But try to download and we're back down >> to ridiculously low data rates. >> >> :-( >> >> At Monday, 12-05-2011 on 23:52 "Ricardo Kleemann" wrote: >> >> Hi, >> >> I don't know what's happened suddenly to my firewall. >> >> I see no sign of device trouble, nothing very telling in my logs. All >> of a sudden my data transfer rate has dropped drastically, but this is >> only for servers behind the firewall. >> >> I've rebooted the servers, rebooted the firewall, rebooted network >> switch. >> >> For data transfer testing, I run sftp to the server shorewall is >> running on. And I get very fast transfers as expected. >> >> However if I attempt sftp to any server behind shorewall (in the loc >> network) then I get ridiculous 10KB/s. This just happened suddenly and >> I have not been able to figure this out. >> >> On the shorewall server, I look at the eth devices and I look at >> /var/log/messages and I don't see any evidence of problems. I'm not >> seeing any sort of driver or kernel errors logged. >> >> What could be "blocking" the transfer? How could I properly diagnose >> this? >> >> I'm really lost at what could be happening here. >> >> I appreciate any help. >> >> Thank you >> Ricardo >> >> >> ------------------------------------------------------------------------------ >> Cloud Services Checklist: Pricing and Packaging Optimization >> This white paper is intended to serve as a reference, checklist and point >> of >> discussion for anyone considering optimizing the pricing and packaging >> model >> of a cloud services business. Read Now! >> http://www.accelacomm.com/jaw/sfnl/114/51491232/_______________________________________________ >> Shorewall-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/shorewall-users >> >
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