We are running a bare-metal server which can handle 400 concurrent video conferencing users. We are using BigBlueButton application for video conferencing. It was running smoothly for the past 6 months. Last 2 weeks we having a strange high peak in network even when user count is bellow 200.
At that time we can't access ssh also. Is this a attack how can we traceout the issue?
Our servers are in Germany and main user cluster is at UAE.
I am a webdevloper, sorry if I missed anything to mention in the questions.