The paper shows how the open-source tool, PasTmon, can perform in-depth application performance monitoring simply by sniffing packets between the client and server systems. (This paper was originally published in SysAdmin magazine June 2007) Contents1 Introduction2 Installation3 Configuration4 Running5 Reports6 Conclusions7 References Introduction We recently had a problem with a web server which was running … Continue reading Application Performance Monitoring with PasTmon