Edit /etc/sysctl.conf and add
# Enables fast recycling of TIME_WAIT sockets. # (Use with caution according to the kernel documentation!) net.ipv4.tcp_tw_recycle = 1 # Allow reuse of sockets in TIME_WAIT state for new connections # only when it is safe from the network stack’s perspective. net.ipv4.tcp_tw_reuse = 1
After this run in terminal
PS: DO NOT USE THIS IF YOUR CLIENTS ARE BEHIND A NAT (Thanks Jero).