What are the most effective tools to manage multiple apache httpd instances?
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We have many Apache instances all over our intranet. Some instances run on the same machine. Some instances run on different machines. 

I need a tool that can manage these instances from one central location.

- Get CPU stats
- Get Connection stats
- Stop/start Apache instances
- Get access to error log

I looked at webmin, but the documentation isn't too clear how it works. Without installing it I'd have trouble getting it to go. 

Any recommendations? 
