Category: challenge

  • NoCOUG SQL challenge

    NoCOUG (which stands for Northen California Oracle Users Group) published an SQL challenge [PDF]: using SQL determine the probability of achieving a given number by throwing a non-balanced dice N times. Being a PostgreSQL fanboy that I am, I’ve given a try with PG. Here are the results: To create the table and populate it…

  • New Ethical Hacker Challenge

    Brady Bunch Boondoggle – at the first read I confused it with the Dukes of Hazard, but I’ve since seen the err of my ways 🙂

  • Ethical hacker challenge solution posted

    To the Santa Claus is Hacking in Town challenge. You can find it here: Santa Claus is Hacking to Town – Answers and Winners. Unfortunately my answer wasn’t accepted 100% because of a small misunderstanding, but it got cleared up and all is good now :-). The RaDaJo blog also posted a detailed solution (warning!…

  • On the topic of contests…

    The latest packetlife challenge is over and here is the solution. Very cool. And here is a challenge I almost forgot about (since this too is very network oriented and I currently don’t have the time to dig up all the information needed): NMAP Trivia: Mastering Network Mapping and Scanning. If you want to take…

  • Two more involved contests

    The first is the First Annual SIGMOD Programming Contest (via nconway’s blog). You need to create data structures to index a generated data stream (in fact streams, because multiple streams are presented to you in parallel) and perform operations on them (insert, update, query). The second one is the Cisco Developer Contest (link from Ubergeek.ro).…

  • Solution to the Ethical Hacker Challenge posted

    Not to this one, but to an older one. This is the announcement and here is the winning solution. This one was actually one of the harder ones for me, I missed the hardware keylogger and didn’t figure out the Vigenere cipher.

  • New packetlife contest

    The January contest for PacketLife is up. As usual, I have absolutely no idea on how to approach it :-), but I’m very curious about the solution.

  • Solution for the Ethical Hacker Network Challenge

    As always, I’m publishing my submission to the latest Ethical Hacker Network Challenge (after the submission deadline of course). I believe that publishing all the solutions (rather than just the winner) creates a richer environment to learn from each-other. The basic idea came from me seeing tutorials to tunnel SMB over SSH, the difference being…

  • Packetlife.net challenge solution

    I mentioned some time ago the packetlife.net contest. I’ve remembered to check back for the answer, which can be found here. Basically, one of the OSPF fields is based on a timestamp. Very cool. Also, it shows how many equipments will break after the 18th of January, 2038 🙂

  • New ethical hacker challenge

    Santa Claus is Hacking in Town. Enjoy.