Prequisites: sudo yum install nano wget nmap net-tools ntp -y sudo yum update -y && sudo reboot If you don’t use ipv6, (like I do, i’ll disable this, otherwise, logstash also starts tcp6 and udp6 listeners): sudo nano /etc/sysctl.conf add the line: net.ipv6.conf.all.disable_ipv6 = 1 Finally reload the sysctl file: sudo sysctl -p Time is […]