I'm trying to install Splunk Enterprise on CentOS7 operating system.  CentOS is installed on Virtual Box.  However when i run ./splunk start -accept-license i get the message "waiting for web server at http://127.0.0.1:8000 to be available. This is my first installation so the solution maybe pretty simple.   I have logged in as root to open ports by typing the following commands firewall-cmd --zone=public --add-port=8000/tcp –permanent  firewall-cmd --zone=public --add-port=8080/tcp --permanent   firewall-cmd --zone=public --add-port=8088/tcp –permanent firewall-cmd --zone=public --add-port=8089/tcp –permanent firewall-cmd --zone=public --add-port=9997/tcp –permanent firewall-cmd --zone=public --add-port=514/tcp –permanent  firewall-cmd --zone=public --add-port=514/udp –permanent  I reloaded the firewall rules by firewall-cmd -reload and when i run firewall-cmd --list-all i can see the ports that i have opened. i created a splunk user and group and associated it to each other.    i uncompressed the tar file and moved to /opt/splunk i changed the ownership of the uncompressed files to splunk  Then logged into CentOS as splunk ran ./splunk start -accept-license and all the prelimary checks passed.  Then after a few minutes, the error appeared and believe the installation stopped. I ran the command /opt/splunk/bin/splunk status and splunkd is not running   i did netstat -an | grep 8000 and its not listening on port 8000.   ... View more