DDOS Attacks and MikroTik
English | Size: 509 MB
DoS (Denial of Service) attack can cause overloading of a router. Which means that the CPU usage goes to 100% and router can become unreachable with timeouts. All operations on packets which can take significant CPU power like firewalling (filter, NAT, mangle), logging, queues can cause overloading if too many packets per second arrives at the router.
Generally there is no perfect solution to protect against DoS attacks. Every service can become overloaded by too many requests. But there are some methods for minimising the impact of an attack.
Get a more powerful router or server
Get a more faster uplink
Reduce the number of firewall rules, queues and other packet handling actions
Track attack path and block it closer to source (by upstream provider)
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