Extreme traffic spikes are kicking everyone.

In the past 2-3 weeks, my server has been having extreme traffic spikes that (according to my host) exceed more than a 100 Mb/s. These happen seemingly out of nowhere, once every couple of days. What's weird to me is my server gets an average of around 20 players, with a 35 player limit. And this has happened with only 13 players online.

My host has suspended my server until I can figure out what is causing this, as it is also affecting people on the same hardware node. Any help with this matter will be greatly appreciated.

Server specs

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4vCPU 2.0Ghz @ 7.2GT/s
4GB DDR3 ECC RAM
1333 MHz
120GB 7.2K SATA HDD

CentOS x64

 

I'd assume this is DDoS that is unavoidable

 

How would I be able to check for signs of a DDoS?

 

Your host should be able to detect this and have logs of it...
If it really is a DDOS, it would be the hosts responsibility, not yours.

I'm not sure you will have access to logs regarding ping or packet data.