Everything begins with object: object has properties (data fields) and behavior (functions/methods to set/get). Object is inside the layer like layers in Photoshop. This is my notebook mainly for object layer of C/C++,Java, JavaScript and PHP/MySQL/Apache/CSS/HTML but also many problems that I have to deal with everyday.
Login as a root and type the following command at console:
# tcpdump -n -i {INTERFACE} -s 0 -w {OUTPUT.FILE.NAME} src or dst port 80
# tcpdump -n -i eth1 -s 0 -w output.txt src or dst port 80