How to Quickly Check Web Server Concurrent Connections with a One‑Line Command
Learn how to use a single netstat pipeline command to count established connections on port 80, giving you an immediate view of your web server's concurrent connection load for better performance monitoring and troubleshooting.
For a web server, the number of concurrent connections is an important metric. You can view it instantly with the following one‑line command: # netstat -nat | grep ":80" | grep EST | wc -l Command breakdown: netstat -nat – displays all TCP sockets. grep ":80" – filters lines that contain ":80", i.e., connections to port 80. grep EST – keeps only lines with the state "ESTABLISHED". wc -l – counts the resulting lines, giving the number of active connections.
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