# Let increase ulimit count in sysctl

If working concurrency and wanted more than tcp and udp connection.Following to commands.

Firstly, upgrade ip port range with sysctl command

sysctl -w net.ipv4.ip_local_port_range="15000 64000"
echo 15000 64000 > /proc/sys/net/ipv4/ip_local_port_range
sysctl -p

and append .bashrc and .bash_profile file by running.

echo "ulimit -n 64000" >> .bashrc ; echo "ulimit -n 64000" >> .bash_profile

and save

source .bashrc && source .bash_profile

Happy coding.