Botnet hammering web site causing outages
We had a site for a client that was stable for close to two years, then suddenly started to experience switches from the master to the geographically separate slave server as frequently as twice a week.
The site is an entertainment news site, and its articles get to Google News on occasions.
The symptoms was increased load on the server, a sudden influx of traffic causing over 800 simultaneous connections all in the ESTABLISHED state.
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