Ubuntu web server monitoring tips

Hi experts,

I am running a website on an Ubuntu VPS and I'm wondering if you could recommend some monitoring software. I'm not running cpanel or anything like that.

The things I'm interested in are:

- CPU load
- RAM usage
- Disk usage
- Login attempts
- uptime

Ideally I'd like an email or sms if any of these things peaked as well. I might need to upgrade the RAM because at the moment I only have 768MB. The site gets about 500 visits a day. All static files are farmed out to Amazon S3 but the processing and database queries all still occurs on this server.

Cheers,
Michael
LVL 10
mstrelanAsked:
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wmeerzaConnect With a Mentor Commented:
Look at nagios for you performance monitoring, not sure about login attempts:
http://www.nagios.org/
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wmeerzaCommented:
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mstrelanAuthor Commented:
Awesome. Have you tried http://www.bijk.com/ and do you know how it compares to Nagios?
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wmeerzaCommented:
Sorry, haven't had any experience with that one but nagios is very straght forward and works well. can be setup with either email or sms function for alerts.
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