CloudShark

Tagged: Http

Monday, Apr 2, 2018

Finding slow http responses

One of the more practical, and yet fundamental uses of packet capture analysis in todays networks is examining HTTP flows to isolate problems with the protocol or underlying network interactions. If you’re writing a web application or trying to debug why a particular service is slow, filtering for and graphing http response times can give you an instant picture of overall performance and outliers. About HTTP response times The http response time is the delta time between when an http request is transmitted, and when the http response is transmitted.

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Tuesday, Jan 30, 2018

Using Follow Stream for Packet Capture Analysis

When getting to the heart of an application or security problem, finding the right TCP stream and following it using the “Follow TCP Stream” view in CloudShark is usually the place you want to get to in order to see an issue in action, for a great many use cases. But how do you find the right stream, and what should you look for once you’re viewing it? What is a stream?

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Thursday, Jul 2, 2015

How do you debug web applications that use encrypted channels?

Well, it’s official; the IETF has officially deprecated SSLv3.0. This means that it’s now a protocol violation to fall back to it. This is good news, since the number and types of attacks have been on the rise for awhile now. We’d like to take the opportunity to explore how to debug web applications that use HTTPS over SSL/TLS in CloudShark. It’s undeniable that debugging HTTP traffic is one of the most common use-cases for a packet decoder.

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Thursday, Jun 28, 2012

Sharkfest Packet Capture Challenge Solution

Thanks to all who participated in the packet capture challenge at Sharkfest 2012! We had a great time at Sharkfest! Here’s the solution, or scroll down to try the challenge yourself! The Solution Many folks showed us different approaches to this challenge. Here is one approach. Visit the HTTP Requests analysis tool for this capture and take a look at the Response Codes tab. https://www.cloudshark.org/analysis/61cdf49986bd/http_req The Response Codes graph shows a break down of traffic by HTTP Response code.

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About Us

CloudShark is made by QA Cafe, a technology company based in Portsmouth, NH. Our passion for packet captures has grown out of our other product CDRouter.

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