Web Hosting Talk : Web Hosting Main Forums : Hosting Security and Technology : Hosting Security and Technology Tutorials : ICMP Attack keeps crashing my server

[kaddyuk]

Every other morning, My server comes under a massive attack from ICMP. I would like to know what steps I can take to prevent this from happening...

Thank You

[AtomixNetwork]

Install a firewall and block ICMPs

[kaddyuk]

How will this affect my server?

[apollo]

depends what type of ICMP traffic flood you got..... if you block all icmp traffic.. then you will be not able to ping your box/server and traceroutes will reply with * for your server hop

[bitserve]

http://www.webhostingtalk.com/showth...threadid=40887

[Tamranda_Ankit]

Install APF ... it has got a way to limit the amount of ICMP Replies

[rfxn]

And i was going to remove the icmp rate limiting in APF; didnt think it served any use let alone if anyone could launch effective ICMP attacks anymore