Tag: Protocols

  • 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…

  • How To: Avoid password theft, Faceraping, Email hijacks etc. On public networks

    Has your email been blacklisted? Does your forum-posts suddenly contain nothing but kittens? Did your relationship status become same-sex over night? Well, physical access to your box may be the answer to most of these scenarios. But everything you send on public wire, in plain-text that is, has the potential to be sniffed out or…

  • Tunnel HTTP traffic encrypted, using Polipo and SSH

    SSH can be used to do allot of great things. Login remotely, transfer files with scp and run single commands for a quick fix. All encrypted! Another great and well-known feature of SSH is SSH tunnelling. SSH tunneling can be used to tunnel any kind of traffic, and in this guide I’ll focus on HTTP…

  • 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…