Concurrency of sockets in Linux

View the maximum number of handles Ulimit-n
Sets the maximum number of handles Ulimit-n 5000
Query process number PS aux|grep Tomcat
Query the corresponding handle number According to the process number Lsof | Wc-l/usr/sbin/lsof-n|awk ' {print $} ' |sort|uniq-c |sort-nr|grep 4935
Find the number of port connections netstat-nat|grep-i "22223" |wc-l
Kill Process based on port kill-9 $ (NETSTAT-TLNP | grep 22223| awk ' {print $7} ' | awk-f '/' {print $} ')

Concurrency of sockets in Linux