I have a web application which will be powering a wide range of websites. I want to implement some form of bandwidth monitoring on a per domain basis for billing and excessive use purposes. I am using Apache as the web server and am just using the default vhost for all sites (with the site level routing and control handled in the application instead of the server). Is there a way to, and if so how do I, extract bandwidth usage on a per domain name basis in Apache instead of a per vhost basis.
Just to clarify by domain based monitoring I am talking about the
HOST request header field.
As an example imagine I have 4 sites names
site2.example.com. Now all four of these sites will be handled by the exact same PHP code and same vHost file (the default catch all file in Apache), will run under the same server user, etc. The sites however are separate sites and are differentiated on the server by getting the host request header in the application. I need to monitor the bandwidth used by each of those 4 sites separately as each one will have a different amount of bandwidth they are allowed.
I am not concerned about if this is something that can be changed by users on the server as the users will not have access to the servers at all and will manage their sites entirely through a web panel (think something akin to Weebly where a single application powers all sites load balanced across multiple servers). As such the method would be used across multiple servers and fed into a single database.
I envision something that either...
- At scheduled intervals (eg: every hour, every 6 hours, etc) it will create a bandwidth usage file recording the site name, and bandwidth used in that period which I can then pull from each server regularly and process on another system myself.
- At scheduled intervals it will take the bandwidth used and push the data to a remote file system or database server.
- At scheduled intervals I will have a bespoke internal application poll the server for the bandwidth used per site and drop it into a database myself.
Any method that achieves the result of getting bandwidth usage accurate enough for billing purposes would be good. I would prefer some method that works with a daemon system on the server itself that my code can interact with or that produces a parsable file that I can work with rather than needing to code a system to perform terminal commands and process the results.
As a sample I am wanting to achieve something similar to the way Wix works out the bandwidth used by various sites hosted on their system as it is effectively an application service not a shared hosting service.