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Showing posts from July, 2011

Installing and using Nmap [Linux/Windows]

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I'm afraid I've been very busy lately with a new job working overnights and figuring out all my college needs for moving in next month, but I've been doing a lot of research and reading on a few interesting topics so hopefully the next few posts will be very interesting. I've also updated a few of my posts including my wifi sniffing and securing your home network posts, so check those out! Today's post is about one of the most important netsec tools you will have in your arsenal. This program is called Nmap and is a free, open-source network auditing and security tool that we will use quite often while looking for vulnerabilities on networks. I will be explaining how to install and do some basic usage on Linux AND Windows (yay Windows!). I will be using my Backtrack 5 for Linux and Windows XP and hopefully get a Vista/Win7 part up as well.

Securing your personal home network [Information]

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Today's the 4th of July so I'm throwing out a quick post since it's been a few days, but I hope all my readers will be happy with another informational piece about securing your own network since, after all, that's what netsec is about! Below is a simple guide to getting the most security out of your network to protect your information and the users of your network's information. Setting up your router encryption: If you've read my WEP/WPA2 cracking guide , then you understand how fragile WEP encryption is. In my tutorial I also explained how to crack WPA1/2 passwords, but explained that the passkey must be in the dictionary that you specified whilst entering the "aircrack" command. When you're selecting which encryption to use, don't even consider WEP. It can be broken in 30 seconds on a half-decent computer. I've successfully broken WEP in under two minutes sitting in a bathroom on a small dell laptop. As for what TO use, c

What is ARP? [Information]

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 Since I've explained now how to get Backtrack 5, if you're still not on Linux then go install it now before all the fun stuff starts! As for today's post I'll be explaining an important part about netsec: Address Resolution Protocol. Understanding ARP, or Address Resolution Protocol, is a key part in understanding how networks communicate.