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Is there any settings in sysctl that controls the maximum number of connections that are allowed from any one ip address? I'm having connection issues a redis server and a rabbitmq instance and I'd like to eliminate this possible condition before delving deeper into netstat results.

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up vote 0 down vote accepted

See discussion at http://stackoverflow.com/questions/410616/increasing-the-maximum-number-of-tcp-ip-connections-in-linux there are sysctl settings given and explained.

See http://fasterdata.es.net/fasterdata/host-tuning/linux/ for some other tunables.

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