How will you know that this is the problem?
- When you are browsing the internet and getting very slow responses, perform the following steps:
- Port mirror the connection to the internet and check if you have any bottlenecks on the way to the internet. You can use I/O graphs for this purpose, as described in Chapter 6, Using Advanced Statistics Tools.
- Verify that you don't have a significant number of retransmissions or duplicate ACKs indicating a connection problem.
- Verify that you don't have any window-related problems, such as zero window or window full.
- If answers are no for the preceding checks, it might be a DNS problem. You could have DNS problems in two cases:
- When working in your organization
- When connecting to ...