I have been reading the following book called, Linux Server Hacks, which shows you many ways you can hack your Linux server so your server doesn’t die.

This actually works since we just had a DoS attack about 5 minutes ago. (It seems like we are getting more and more DoS attacks these days. You can refer to the DDOS Deflate script also)

Here’s HACK #47 I read about last week in my bath room from the book and I just used it to prevent DoS attackers from bringing my precious Quad-CPU dedicated server down.

Enter the following commands and you will limit number of TCP connections to your server to 12 connections per second after 24 connections have been seen. (It means that no matter what, your server will not try to serve more than 12 visitors during one second of period when your server gets digged, farked, stumbled, or whatever)
iptables -t nat -N syn-flood

iptables -t nat -A syn-flood -m limit —limit 12/s —limit-burst 24 -j RETURN

iptables -t nat -A syn-flood -j DROP

iptables -t nat -A PREROUTING -i $EXT_IFACE -d $DEST_IP -p tcp –syn -j syn-flood
I think you can increase the values steadily if your server can handle more. But it seems to have brought our server load from 33.00 somethin’ to under 1.0. Yey!

If you are a hacker, sorry dude. You are gonna have to try a little harder hacking Zedomax since we are hackers too.

P.S. You know what I try to do when I find out where the hackers are coming from, I do a DoS attack back on them. This usually pisses them off enough to DoS me more but I kinda enjoy the battle so bring it on! :p

Well, this seems like it’s been floating around the net for awhile but it’d be cool to know how to use your PS3 SixAxis Controller with Linux.

Check it out here:

via Ps3Mods

Have you had any problems recently with your hosting, to maybe you feel that it is just too expensive, either then this could be for you?

The Square One Personal Internet Server, this is an all in one Linux router, NAS, firewall and just so much more.

Features:

Hard disk drive: 7200RPM 2MB-cache Fluid Dynamic Bearing Ultra ATA-100 — Processor: ARM922T 32-bit RISC CPU w/ 16KB L1 cache — Memory: 64 MB SDRAM / 4 MB Flash ROM

Network interfaces: 10/100 Mbps Ethernet x 6 (1 WAN port / 1 DMZ port / 4 LAN ports) — Printer port: USB 2.0 Type B connector

Web server software: Apache 1.3.9 / PHP 5.1.5 / MySQL 5.0 — Installed Web applications: homepage creator, blog server, bulletin board system, remote file access

This personal server has everything that you need to get started, and all for the low price of just $395.

Source [Gadget Grid]

Here’s a cool USB disk drive hack that shows you how to bypass the password retries with 1 wire and tips to getting started with cracking the actual password. This shows how vulnerable those USB disk drives are in the hands of smart hackers.

The package seems to be made of black velvet, and there’s a nice keychain hidden in a compartment of the package which you can use to hang the stick around your neck. I’m not so fond of metal on my body, considering I work with electricity a lot, but I can imagine it’s a nice way to carry really valuable data around.

First thing I did is plug the device into my Linux-machine. It showed nothing but a 2MB partition containing a Windows program called PASSWORD.EXE, so no chance of getting it to work easily in a non-Windows environment. So much for cross-platform compatibility… Ok, so let’s boot into Windows.

Under Windows the program was runnable OK. Hmm, seems someone already entered a password for me… and I now only had nine retries before the unit would self-destruct!

via

Cool, Dell is going to be supporting Ubuntu! This is a sign that Linux and open source movement are taking over the world soon not to mention the cool open source CMS softwares like Wordpress, Joomla, Pligg, etc…etc…  This is a surprise from the company that announced to not ship their products with Linux in the past.

Ever since we heard that Dell would ship computers with Linux pre-installed, we wondered which flavor it would be. It doesn’t really come as a surprise that it will be Ubuntu, which Michael Dell uses it on his home laptop.

The official announcement is expected anytime now, but we got the heads up from Ubuntu contributor Fabián Rodríguez. His post is down (thanks, Digg) but can be seen on Dugg Mirror.

[via] ifacethoughts

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Here’s a cool Wii HACK someone made that unlocks a door! It uses FreeBSD, some type of bluetooth device, and Wiimote to make it a complete system. I bet you can use less parts. Will someone hack one again soon?

via

Cool, this guy jumped out while Bill Gates was speaking at Peking University in China. I think Microsoft should go open-source…

Wen sez, “On April, 20th, Bill Gates went to Peking University to give a talk titled “Creativity, China, Future”. After the talk, someone held a piece of paper written with ‘Free software, Open source’ rushed to the stage before Mr. Gates while spoke word to support open source software. It is said that that man is named Yang Wang, and he is a representative of LPI (Linux Professional Institute)

via boingboing

If you use Linux, you know Xeyes is a simple program that follows your mouse movements. You can check out some web examples of Xeyes. You can even paste this javascript code on your website for Xeyes on the web.

Anyway, Hunz created physical Xeyes that stands on his window and follow people’s walking movements. Tight! We want one.

The eyes are made from large pizza boxes cardboard and rolled by RC-servos that are controlled by an ATTiny2313 that’s connected to the PC using the low-speed software usb stack. The camera is connected using USB as well. Since I disassembled my webcam and hooked it up to an FPGA for some experiments, I used an analog one and a USB video digitizer.

The video processing is done using mplayer. It’s cropped first to get only the street and no neighbour estates. Then a tiny & quick&dirty video filter plugin looks for the column with the strongest Y-component difference between the last & current frame and if the difference exceeds a certain threshold, that column is passed to the microcontroller using libusb.

[via]

Check out some of the cool stuff and people that are going to be at the Maker Faire! (Including us but we have no idea what to bring…yet)

We will get to play with an electric giraff (hopefully) and meet with submarine maker Mike Wernecke.

You can get some tickets for the Maker Faire in San Mateo Fairgrounds here.  And check out Maker Faire in detail here.

There’s some cool Maker Faire Pictures from back in the day here.

More Past Participants and Pics from Maker Faire’s Past

• Engadget at Maker Faire Part I
• Engadget at Maker Faire Part II
• BoingBoing and LaughingSquid
• CNET at MakerFaire