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3 mistakes to avoid in server performance monitoring

3 mistakes to avoid in server performance monitoring

A fast server with high uptime – that’s the dream of every web host! But in real-world scenarios, nightmares do happen in the form of an unexpected server crash or a DOS attack to the web server.

To diagnose and resolve server incidents in no time, it is vital to have a server performance monitoring system in place. With an efficient monitoring service, you can prevent server attacks or outages that can be detrimental to your business. (more…)

5 questions to ask your server monitoring service provider

5 questions to ask your server monitoring service provider

Imagine that you are in the midst of an Ad-campaign and is dependent too much on e-mails. What if your mail server suddenly goes down and it majorly affects your business? Obviously, you’d be frustrated.

Server uptime is therefore, always the utmost priority in web hosting services. A single prolonged server downtime is sufficient to throw you out of your business. To stay competitive in business, you’ve to ensure 99.99% uptime to your customers.

A 99.99% uptime means a total of not more than 54.84 minutes of downtime in a year. As anything from a network issue to a bad hard drive can lead to a downtime, having an effective server monitoring service is vital to ensure this uptime. (more…)

The last scout – Zenoss

It would be a crime to claim to be a person who is interested in Open source monitoring systems, and then not talk about Zenoss. So, even though I had started the deep dive into CRMs, I thought It is my duty to come back and give it the proper respect that it deserves.


Monitoring tools have been there for a long long time. In that time they have built a large user base. The longer the users have been using the product, the tougher it is to break into the already existing market. This is where the difference between Proprietary and Open Source software come into play. The best thing about Open Source is the feel that it makes you feel…”Hell yea, I am contributing to a worthy cause. This, from now on is MY cause!!



Know thy server- better, cheaper and quicker!

Knowledge is Power. Be it war, peace, administration or day-to-day business, information about any dynamic parameter you are dealing with, adds to your strength. Imagine a day when you are idly playing a video on Youtube, and out of the blue comes a popup screaming – “Dude, you’ve got a problem. MySQL is kinda acting weird, and the server load is leaping over the moon. You better check it right away!!” Aaaah!! Life would have been so much easier! If this is what you have been dreaming about, this is exactly what Nagios can deliver.


Stop your monitoring systems cry “wolf wolf”


Ever found it frustrating that your monitoring system alerts you in the middle of the night with a false service down alert? Ever found it difficult to trust the monitoring system alerts because of the network issues in your NOC? The solution to you, is distributed monitoring. The main aim of distributed monitoring is to produce the exact result of server service checks with the help of distributed, central monitoring servers and to avoid incorrect information.

Some times due to the network problems at NOC, services will show as down, though they are not. In the distributed Monitoring system, we setup the nagios in central, distributed monitoring servers with proper modification in the configuration files. The central server sends the notification mails and others will not. So we get the exact result instead of incorrect one. The results will be more accurate if these machines (monitoring machines in the distributed setup) are located at different locations.


Network Monitoring With ntop: Installation and Configuration

Network Monitoring With ntop: Installation and Configuration

ntop is a network traffic tool that shows network usage in real time. It displays a list of hosts that are currently using the network and reports information concerning the IP (Internet Protocol) and Fibre Channel (FC) traffic generated by each host. The traffic is sorted according to host and protocol. Protocols (user configurable) include:


Catching Cacti : Network Administrator’s Guide

My dad once told me, “Even if you are holding on a thorn, hold it tightly“. Thats what came to mind , as I saw Cacti. I chose Cacti, after considering different options for resource monitoring of our linux servers. This article is all about , how I tightened my grip on the cacti , and made it work in our servers. If you are a newbie network administrator, this writeup would be really useful for a head start on resource and network monitoring using cacti.


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Uptime monitoring for Web Hosts

Many hosts advertise 99.99% uptime or anything above 99.9%. Is 99.9% any different from 99.99%. Does it make a difference to anyone. The difference is only 0.09%, for crying out loud!! Well, there is a difference.

A 99.99% uptime means 54.84 minutes of downtime a year.
A 99.9% uptime means a total of 6.91 hours of downtime a year.
A 99% uptime means 3.6 days of downtime a year!!

Web Hosting consumers need to seriously look at their Web Hosts uptime claims and compare the downtime they have faced with the figures above.

For a Web Host, does it take the same monitoring mechanism to sustain a 99.99% and a 99.90% uptime. Obviously not. But first a look at what is Uptime. (more…)

Server Load – The Basics

Load, in computing, is a measure of the amount of processing a computer system is currently performing, usually in the form of a scalar and as some variation on a percentage. – Wikipedia definition.

In a *nix variant, Server load can be calculated by the uptime, top or the w command.

[root@localhost ~]# uptime
15:33:18 up 1:33, 3 users, load average: 0.01, 0.05, 0.09