Hacking challenges, Wargames away from home.

So far as I know, this doesn't fit in any other forum, so I'm just gonna put it in here, Correct me if I'm wrong.
Whilst exploring the net, I came across something that may be interesting to this community. Especially in light of the new idea about antionline Wargames.

http://www.ca-osi.com/

You join, and you can perform Hacking challenges. The first one is really simple... The second one is not so simple.. at least not to me, I'm not a programmer, so I have no way of knowing how to do it. (Advice/ Answers will be accepted.. hah.)
Anyways, its all good fun.

If u like hacking challenges...i recommend u to stop by at http://www.hackergames.net , it has lots of sites like the one u posted and some of them in my opinion better....

As for the answers...i dont think so...u do it urself and u'll learn a lot more than u think...

Any replies...r welcome

Yeh, hackergames.net is run by my friend Snarkles, and she has put up a ton of links to different types, and categorized them with user reviews and summaries. You all really should check it out if you're interested in some of the "hax0r" challenges.

... Another popular and challenging wargame would be Hackerslab. It is both fun and hard, and can really help improve skill. I recommend it to anyone into wargames.

yer www.ca-osi.com was created by cyberarmy until their origional zebulun challenges are back up another one which is a little easier is www.try2hack.nl but after the first 5 or so it starts to get hard.

this is my favorite: www.slyfx.com well there is no other game that helps you understand the
way tcp/ip works.

Here is the Explanation for Level 2

There are several ways to solve this problem, as normally. Brute force is the easiest, while intelligent use of prime numbers is the most sensible.

Using this link could also be helpful for further studies:
http://www.utm.edu/research/ primes/.

The use of checking prime numbers only could greatly improve the detection speed.



I've solved it with a c++ simple brute force program.
I hope this will be useful for you.

yeah, slyfx has to be the best of all the hack / puzzle challenges out there by a long shot, if you think level 2 is to the point where you need brute force to do it, you'll really hate level 3, i only just sorted it out then after having done JS in my uni course

Yeah, slyfx is a very good challenge site, but right now i'm loving the new version of aspect http://www.aspectgames.net . Is very nice and in matter of graphics is one of the best ones out there...

Well if u like this sites u can join our own irc network at irc.topgamers.net

Cya