Hi,
I found this in the forum (which means that I cannot block whole websites because I have to create them from the host en uri values. If I want to block both websites: www.cisco.com/support/firewall.html and www.googledocs.com/docs/3456/doc.html how do I solve this?):
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A URL is composed by four parts:
- Protocol: Also called URL scheme, this specifies which protocol is used to access the document.
- Computer name: Gives the name of the computer (usually a domain name or IP address) where the content is hosted.
- Directories: Secuence of directories separated by slashes that define the path to follow to reach the document.
- File: The name of the file where the resource is located.
URI identifies a resource, while URL in addition, specifies the access method (network location) like having http//: or ftp:// and then the IP address like http://10.20.30.40
URN is name given to the URL.
Here our scope is the URI and host.
As I said host is found in HTTP header
For http://10.20.30.40/services , the host is "10.20.30.40" and uri is "services"
For http://www.cisco.com/web/about/index.html , the host is "www.cisco.com" and uri is "/web/about/index.html"
You can check it out using wireshark.
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Regards,
Marc
