Some fucking bastards attacked my server with DOS attack from multiple IPs...their hitbots were really fast and caused that load of my server increased to 18
) Ssh was inacessible so the only one choice was switch attacked domain to 255.255.255.255...I was appriciated that my dns servers are on other machines so it worked promptly. Then I wait few minutes and restarted it remotely. Server status seemed to by in normal so after few minutes I switched attacked domain back...Hitbots were away...
Look at image below...they attached it's url to HTTP requests:
WTF?
What are Your tips how to fight against attacks like these?
Any advice will be appriciated