iptables / ddos protection

Hi Guys, today i have tryed to do a iptables firewall, but i faild and i don't know how i can solve my Problem. If my iptables script I can not open any other scripts from outside. It says that it can't resolve the host name. Can anyone correct my script? Thank you very much Jonaxio...

Hi guys for a little time my ts3 suffer light ddos attakcs. I've done tcpdump and investigated it with whiteshark. i have to drop all conecctions length of 0-141 I tried this guide but \/ doesn't want to fit iptables rules. iptables -A PREROUTING -t raw -p udp --dport 9987 -m length --length...

This Is Some IPTABLES Can Help You To Block Some DDos Attacks #block udp with a 0-byte payload iptables -A INPUT -p udp -m u32 --u32 "22&0xFFFF=0x0008" -j DROP #block all packets from ips ending in .255.255 iptables -A INPUT -m u32 --u32 "12&0xFFFF=0xFFFF" -j DROP #block common...