Slow DNS causing slow internet access

Overview

Last week, one of my client reported that their users were experiencing slow internet access even on non peak hours. For them, this is because there was a problem on our proxy solution provided (McAfee Web Gateway). I don't buy that. So what I did is to gather info first (like what a good IT guy would do) and then analyze each.

After some hour analyzing the result, it turns out that the culprit was their internal DNS! It seems their internal DNS is very slow in resolving each request sent by our proxy solution. This make user browsing experience very sloowwww. :(

Stonesoft, new McAfee family member!

So today, I was very excited to try what Stonesoft can offer. As everyone knows (or not) Stonesoft was recently acquired by McAfee (McAfee Press Release), with this move, it helps McAfee delivers NGFW and NGIPS to the global demand of network security solution.

Long story short, I'm very familiar with McAfee's current firewall solution which named McAfee Firewall Enterprise (MFE). This firewall is based on previously known Sidewinder firewall (which was acquired by