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Tag: Domain Name System

  • How To: Netcat – Check for open ports with the command line

    Kitty Port-checking When troubleshooting a network integration or any other connection issue in Linux, step one is usually a matter of checking to see if the network port on the other side is even responding. Netcat -The network Swiss Army knife (Hobbit, not nmap)- is the right tool for the job. Before we begin, NetCat…

  • Confessions of a SysOP – Linux Enthusiasm in the Enterprise Environment

    I used to be highly enthusiastic about open and free information technology, and I still am to some extent, but the workplace made me think critically in a new way. Ever since my first introduction to Linux a couple of years ago, running as a Knoppix Live DVD on my parents old HP 3GHz Pentium…

  • How To: Send and receive files with Ncat (formerly NetCat)

    As with any application in Linux, piping the output from an application to a logfile or perhaps another application. Can sometimes clarify what is going on. It would be even better if you could “cat” any output over the Network (Ncat, get it?) to another computer. That is where Ncat comes in. First, some basics…

  • Netcat Tutorial: Connect Through Proxy

    If you are performing a pentest, you have to stay as anonymous as you can, even ifyou are performing such a simple task as a banner grab. Anonymity is specially important when performing a bind shell to a remote computer, and you don’t want your computer savvy victim to take notice, or at least, be able to track you.

  • Setup OpenDNS In Mac OS X

    There are several reasons you might want to use OpenDNS, the biggest two I use it is for speed and security, here I will show you how you can set it up on your Mac: Open system preferences and click “Network” Select your network interface and then click on “Advanced”. If you don’t know what network…