188.8.131.52 and 184.108.40.206 are the two public DNS servers Google offers up. I'm not sure what you will gain from that? We, too had some problems with Google a couple years ago. Most of it centered around bandwidth (we had heavy load at various times of the day) and with the older filter we used (linux box running Dan's Guardian... this is basically the same thing as Untangle). The poor little proxy server just couldn't keep up with the volume of requests and it would differ them. Replacing that made a huge difference, but we still had congestion issues which we eased a bit by doing some traffic shaping on the firewall. The real solution was a new filter and doubling the size of the pipe. Mike [Description: cid:[log in to unmask]] Michael Vining, SB IT Support South Burlington School District South Burlington, Vermont 05403 Direct: (802) 652-7298 IT Help Desk: (802) 652-7050 [Description: Description: btn_liprofile_blue_80x15]<http://www.linkedin.com/in/mikevining> From: School Information Technology Discussion [mailto:[log in to unmask]] On Behalf Of John Peters Sent: Wednesday, October 23, 2013 9:17 AM To: [log in to unmask] Subject: Re: Google Apps Connectivity Thank you for your replies. I took all of your comments under advisement and performed the following actions. I ran "nslookup -debug drive.google.com 220.127.116.11" and took the results to add a CFS exclusion list in our SonicWall on the IP address range returned. Are these actions sufficient? Are there any other corrective actions I should consider? Thanks John Peters Director of Technology North Country Supervisory Union 121 Duchess Ave Suite A Newport, VT 0585-5517 802.334.5847 ext 2018 [log in to unmask]<mailto:[log in to unmask]> "Technology is not a panacea" Law #10 Microsoft's 10 Immutable Laws of Security From: School Information Technology Discussion [mailto:[log in to unmask]] On Behalf Of John Peters Sent: Wednesday, October 23, 2013 7:39 AM To: [log in to unmask]<mailto:[log in to unmask]> Subject: Google Apps Connectivity We are having a problem maintaining connectivity with Google Apps at several of our schools. Students will connect and then the connection times out with students getting a "trying to connect" error message. This is not a problem every time in that it has been sporadic over a period of time and it is disruptive. Yesterday we experienced issues in three schools. I have read the Google Apps Best Practices Networking Guide and I believe we are doing everything they recommend. Has anyone else been experiencing this issue? If so, what corrective actions did you take? Thank you, John Peters Director of Technology North Country Supervisory Union 121 Duchess Ave Suite A Newport, VT 0585-5517 802.334.5847 ext 2018 [log in to unmask]<mailto:[log in to unmask]> "Technology is not a panacea" Law #10 Microsoft's 10 Immutable Laws of Security ______________________________________________________________ This email may contain information protected under the Family Educational Rights and Privacy Act (FERPA) or the Health Insurance Portability and Accountability Act (HIPAA). If this email contains confidential and/or privileged health or student information and you are not entitled to access such information under FERPA or HIPAA, federal regulations require that you destroy this email without reviewing it and you may not forward it to anyone. -- This message has been scanned for viruses and dangerous content by MailScanner and ClamAV, and is believed to be clean.