Question

Unusual Activity in Public Outbound

Today I noticed an unusual activity on my server, a high number in Public Outbound. I have goaccess, but Apache did not show any abnormal download.

How do I track the cause of this problem?

Interval 24 Hours

https://imgur.com/a/FhXUp

Interval 30 Days

https://imgur.com/kvAUpfZ

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I’m an nginx user, but my first question is are you throttling the web server? Otherwise, yeah you can serve a high bandwidth. Thank Digital Ocean. ;-) Running speedtest-cli:

Retrieving speedtest.net server list… Selecting best server based on ping… Hosted by Unwired (San Francisco, CA) [5.79 km]: 3.089 ms Testing download speed… Download: 907.93 Mbit/s Testing upload speed… Upload: 834.10 Mbit/s

That is a bit unrealistic. I picked some podunk server to test: Retrieving speedtest.net server list… Retrieving information for the selected server… Hosted by Southwest Arkansas Telephone Coop (Texarkana, AR) [2598.65 km]: 99.602 ms Testing download speed… Download: 230.59 Mbit/s Testing upload speed… Upload: 113.17 Mbit/s

You serve at the upload speed. Still you handle 5 of those hogs.