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Nagios/Icinga Traffic-Light

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Nagios and Icinga have a lot of notification opportunities, receive status via Mail, SMS, Twitter or maybe XMPP? Sometimes is it not easy to decide what you really need and what is better for your quick reaction.

If you have more than one monitor it is easy to overlook an important mail, or your mobile phone is in silent mode and you don’t know that you get a critical notification.

If you are a webmaster and you are working a lot with your browser – there is a solution for Mozilla Firefox with terrible wake up sounds – called Nagios Checker for Mozilla Firefox:
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Testing network with iperf

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If you need to measure network throughput and capacity, I haven’t found a simpler solution than iperf. There isn’t much to say about the operation of iperf — it’s a very simple application in server/client mode.

In short, iperf can be installed on two machines within your network. You’ll run one as a server, and one as a client.

First we need to install iprerf (debian and ubuntu way):
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How to Bruteforce SSH

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SSH is an acronym which stands for Secure SHell, which provides a secure shell access to a remote machine.

This brut force tool is great to test some security stuff like iptables or sshguard.

You are able to see the proceeder of real hacking attempt.

Like most brute forcing tools, you’ll first need a pretty big passlist. You can get one from here:

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wget https://zeldor.biz/other/bruteforce/passlist.txt

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