Getting DDoS-ed makes you mad?:{D

Getting DDoSed can be annoying as hell, there is however absolutely no permanent solution to DDoS other than methods to filter or prevent it a little bit, like having multiple nodes on your host and or having backup resources available at demand. For example, CDN, Front end -> Back end method, Higher access link than 1GBp/s (YEAH LOL WHO GETS THAT?). You get the picture for simple ET servers (noobs) this is will cost way too much and with the outdated Q3 protocol its impossible :_DD. Now what can you do to try prevent it if it's some newfag that is trying a DoS tutorial on google? First you need to distinct whether you're the victim of a DoS or DDoS (google it, if you don't know). Wikipedia: http://en.wikipedia.org/wiki/Denial-of-service_attack

For DoS there are quite a few possibilities (google it you lazy fucks):

DDoS Deflate:

• Great software, rock solid, and plays nice with either APF or iptables. Install and configure the service in seconds using the commands below. Edit the .conf file to utilize whichever flavor of firewall you'd like to integrate it with. Set a few configuration settings and you're done.
  

How to install?
Open that cancerous blackwhite (whatever colors you've set) terminal, make sure you either su up, or prefix every command with sudo. (Yesh install it as root, security genius)

1. wget http://www.inetbase.com/scripts/ddos/install.sh
   
2. chmod 0700 install.sh
   
3. ./install.sh
   

Incase you don't like it or you can't figure out how to set it up, you can uninstall it this way:

1. wget http://www.inetbase.com/scripts/ddos/uninstall.ddos
   
2. chmod 0700 uninstall.ddos
   
3. ./uninstall.ddos
   

APF:

• APF stands for Advanced Policy Firewall. Its a rock solid firewall that normally plays nice with iptables. You can grab a the most recent copy here: http://www.rfxn.com/projects/
  

However if you are the target of a Distributed DoS(over 10k clients) I wish you a good night's rest and you can go cry in a corner and get rekt cause that shit simply won't be fixed by simple software, you are FUCKED simple as that. Unless you want to pay extensively for resources just to prevent DDoS, which you won't even need with what you're running (ET server + ts3 + webserver :xdd).

Source(Completely stolen from here): http://www.liquidcomm.net/news/tech_tips/linux_os/how-to-manage-a-ddos-or-dos-attempt-directed-at-your-linux-server.html

Sauce