monitor

Windows performance counters.

Excellent article on Twitter security and scalability, with references to tools and libraries currently in use.

This document describes how to set up Hyperic HQ on Ubuntu 7.04. The resulting system provides an awesome, web-based "Systems-Management-Software". It is the next stage of classical monitoring and able to manage all kinds of operating systems, web servers, application servers and database servers.

The life of a systems or network administrator requires us to maintain an expansive understanding of our network infrastructure to more effectively manage it. Amidst volumes of complex data that some IT problems present and network management is no exception to these complications. Visual tools allow us to better see trends and make sense of the macro view of our networks. Ntop, nBox, nProbe are just the right FOSS tools that can help us gain greater insight.

Matt Cutts has the same pedometer. I agree with him, although it'd be even better if these devices could connect and upload data to my computer (and to the cloud) automatically via Bluetooth or WI-FI w/o having to remove it from my bag at all.

Quoted: Now I just wish every health device could connect to a computer. Omron offers a blood pressure monitor that also connects to your computer using the same software as the pedometer (it’s all seamless). I’ve tried it, and the blood pressure monitor works well. If Omron ever offered a scale that connected to a computer, I’d immediately get one of those, too. :) In the meantime, I’m not aware of any other pedometers or blood pressure monitors that connect to a computer, so it’s a good thing that they’re both solid products. :)

In this tutorial I will describe how to install and configure Snort (an intrusion detection system (IDS)) from source, BASE (Basic Analysis and Security Engine), MySQL, and Apache2 on Ubuntu 7.10 (Gutsy Gibbon). Snort will assist you in monitoring your network and alert you about possible threats. Snort will output its log files to a MySQL database which BASE will use to display a graphical interface in a web browser.

Quoted: Real-time Monitoring Systems

I wonder what current Google service he is referring to. In any case, I like his idea...

Quoted: In fact, it is such a serious business that I have a second recommendation for Google. They have a service today that Ryan used to determine what the problem was for his site. Apparently the site was hacked and spammers inserted some bogus links that he wasn’t even aware of. I sympathize. A blog gets big and who spends time patrolling every post looking for such misdeeds? My suggestion for Google is to offer a reporting service. They could certainly charge for it if they wanted, because it is critical stuff for a lot of sites. For a nominal fee, perhaps $5 or so a month, it should be possible to get an email alert whenever your site’s status changes with Google. Whether that is a page rank change, or the more serious step of being delisted, you’d get an email when it happened. I have to believe this would be a net profit generator for Google, as well as a comfort for those who rely on Google.

This article describes how you can monitor your Postfix mailserver with the tools Mailgraph and pflogsumm. Mailgraph creates daily, weekly, monthly, and yearly graphs of sent, received, bounced, and rejected emails and also of spam and viruses, if SpamAssassin and ClamAV are integrated into Postfix (e.g. using amavisd-new). These graphs can be accessed with a browser, whereas pflogsumm (Postfix Log Entry Summarizer) can be used to send reports of Postfix activity per email.