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Managing Squid and Monitoring Traffic in .NET Use QR Code ISO/IEC18004 in .NET Managing Squid and Monitoring Traffic

6. using .net vs 2010 toinclude qr code on asp.net web,windows application PDF-417 2d barcode The previous command QR-Code for .NET will generate an access_stats.html file along with a few image files in the stats directory.

Let"s have a look at a few images from the stats directory:. This image is a graph of TCP requests by the Squid status. On the left-hand side is a scale representing the number of requests, and on the right-hand side is a scale representing the data transferred in Gigabytes. As we can see from the previous graph, around 17 million requests resulted in a hit.

This means that they could be served from the cache without fetching data from remote servers.. [ 16 ]. Managing Squid and Monitoring Traffic Let"s have a look at .NET Denso QR Bar Code another graph:. The previous screensh ot shows is a graph of request destinations by the second level domain. As we can observe from the graph, a total of 9 million requests were sent to Facebook servers (*.fbcdn.

net and *.facebook.com).

Calamaris generates a lot of interesting graphs like the ones shown, which can be helpful in analyzing and optimizing our proxy server to enable it to perform better.. What just happened We learned how to use the various options with Calamaris to generate HTML and graphical reports for better analysis.. Have a go hero exploring Calamaris Have a look at the Ca lamaris man page for more details about the different options which can be used on the command line.. [ 170 ]. 6 . Pop quiz 1. Which of the follo wing is a correct choice for running the cache manager CGI program a. Apache Web Server b.

Lighttpd c. Roxen Web Server d. All of the above 2.

Which of the following is the correct formula to calculate cache hit ratio a. Number of cache hits * 100 / Number of requests b. Number of cache hits * 100 / Number of cache misses c.

Number of bytes served as hits * 100 / Total Number of bytes served d. Number of cache misses * 100 / Number of requests. 3.

Which of the following is the correct formula for calculating byte hit rate a. Number of bytes served as cache hits * 100 / Total Number of requests served b. Number of bytes served in the past 24 hours * 100 / Total Number of bytes served c.

Number of bytes served as cache hits * 100 / Total Number of requests served d. Number of bytes served as cache hits / Number of bytes served as cache misses. Summary. We have learned about using the cache manager to monitor our Squid proxy server for various statistics. Specifically, we have covered the following:. Installing and config qrcode for .NET uring Apache to use the cachemgr.cgi program to provide a web interface for the cache manager.

Various types of information and statistics about our running proxy server An overview of log file analyzers Installing and using Calamaris to generate interesting statistics about the usage and performance of our proxy server.. Now that we have lear ned about monitoring the performance of our proxy server, we"ll learn about protecting our proxy server with authentication in the next chapter.. [ 171 ]. Protecting your Squid Proxy Server with Authentication In the previous chapt Visual Studio .NET Quick Response Code ers, we have learned about installing, configuring, running, and monitoring our Squid proxy server. In the last chapter, we also learned about analyzing the performance of our proxy server along with the usage statistics for different resources.

In this chapter, we"ll learn about protecting our Squid proxy server from unauthorized access, using the various authentication systems which are available. We"ll also learn to develop a custom authentication helper, using which, we can design our own authentication system for our proxy server..

In this chapter, we w ill learn about: Squid authentication HTTP basic authentication HTTP digest authentication Microsoft NTLM authentication Negotiate authentication Using multiple authentication schemes Writing a custom authentication helper Making non-concurrent helpers concurrent Common issues with authentication So let"s get on with it..
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