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Linux Server Attached to the Internet Issue (Read 2250 times)

BWETTLAUFER Full Member Offline Posts: 216 Location: Cambridge, Ontario Joined: Apr 9^th, 2010	Linux Server Attached to the Internet Issue May 23^rd, 2013 at 3:28am	Print Post
	Hey all, We are making leaps and bounds on our server, but one small hiccup I'm hoping someone will be able to help with. 1. We upgraded from hosting our server on a Windows 7 machine to an Ubuntu Linux box. The speed is amazing! Our lag and freezes are gone. 2. We were still suffering with a lag from our second branch connecting via VPN, so we attached our server to an external IP. the other branch's speed was great ... no issues there! 3. When we went to secure our Linux server with a firewall with allowed IP addresses to pass through, the issues began. Random shut downs, connections lost, and so on. Has any one else experienced this issue? Does anyone have any advice?


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The Cow YaBB Administrator Offline Posts: 2530 Joined: Nov 22^nd, 2002	Re: Linux Server Attached to the Internet Issue Reply #1 - May 23^rd, 2013 at 12:43pm	Print Post
	Where is the firewall in relation to the server? Is it software running on the server, part of the router, a hardware firewall device, etc?

	Mark Lasersohn&&Programmer&&Lantica Software, LLC
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BWETTLAUFER Full Member Offline Posts: 216 Location: Cambridge, Ontario Joined: Apr 9^th, 2010	Re: Linux Server Attached to the Internet Issue Reply #2 - May 23^rd, 2013 at 10:24pm	Print Post
	Sir, it's software running on the server itself. It's Ubuntu's UFW software. We have set up an allow file for external ips on the server, and we have set up 'sudo ufw allow from x.y.z.q' to grant incoming permissions from the terminals' fixed ip addresses. The issues we run into are spontaneous (and frequent) client sessions vanishing, or coming up with a communication error and then shutting down. Thanks!


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The Cow YaBB Administrator Offline Posts: 2530 Joined: Nov 22^nd, 2002	Re: Linux Server Attached to the Internet Issue Reply #3 - May 24^th, 2013 at 1:00pm	Print Post
	Have you allowed ports as well? sudo ufw allow 20000/tcp sudo ufw allow 20001/tcp Also does ufw have logging enabled? If so, are you checking the log?

	Mark Lasersohn&&Programmer&&Lantica Software, LLC
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BWETTLAUFER Full Member Offline Posts: 216 Location: Cambridge, Ontario Joined: Apr 9^th, 2010	Re: Linux Server Attached to the Internet Issue Reply #4 - May 30^th, 2013 at 7:24pm	Print Post
	That did it sir ... thanks!


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