JDStud6

I have been looking for a hosting site that offers DoS protection on its servers. I havent seen any that actually say they have it. Is it really important to have? What are the things that could happen if I didnt have it?

JD

zorin

well DDoS is an important issue to consider if you have an online business, If you come under attack from a DDoS atack will it affect the customers who use your website? If you talk to your ISP you could get somthing figured out incase anything like that happens. Oh and I would also choose a decent ISP that can deal with large amounts of traffic to your servers. If your ISP carn't handele millions of packets of data, it dosen't matter what DDoS protection

Godmode

It can't be fully stopped. But to block most of the attacks firewall should block for example ICMP's.. Good host has well configured firewall too I think, it's not your problem if you're not the host. Leet hacker can still punch the F5 button

White-Hat`

Ninety percent of Distributed Denial of Service attacks can be stopped with a correclty configured router firewall. The rest is up to the way the OS is configured and how the Daemons are configured.

-Blocking ICMP Echoes will stop a Smurf, Ping of Death and ICMP flood attack.
-Banning IPs which attempt to do the TCP/IP handshake too quickly (multiple connections) will stop a SYN flood, but can have it's downfall. Another way is to configure either your daemon or registry to allow only so many handshake 'attempts' in a certain amount of time. If anymore come, it will just bounce it. Couple that with a carefully crafted banning feature, and you should be good to go.
-Blocking IP spoofed packets will also stop a Teardrop attack, and will help to block more advanced DDOS attempts, as well as a few other namely attacks

Buut like I said, a well configured router firewall should cover all these bases and hopefully include the above, or at least part of it. Look for high grade Cisco catalyst routers and switches.