In the HDP configuration documentation, it says "To enable HDP communication, open the specific ports that HDP uses." How can achieve this in CentOS? What about port forwarding? For example if I want to access the Web UIs from browser on remote machine, how can I achieve it? I tried this : ssh -L 0.0.0.0:8080:10.0.225.60:8080 root@sandbox -g to make other people on the subnet reach the machine on SSH. and when I run : netstat -nltu | grep 8080, I can see the service is listening on the port. But when I run telnet <hostname-name> 8080, error " Connection closed by foreign host" occured. Look at the screen shot. Any workaround will be highly appreciated! ... View more

I have been working on Hortonworks Sandbox. The Sandbox is deployed on CentOS 6.7 server. I was, at some point in time, able to access the Web UIs on my browser from remote PC. But most of the services are not accessible except the welcome page on port 8888. When I try to start the services with command line in PuTTY, no success! That is, the services are not running. When I run this command, netstat -nltu , I can't see the service ports in the list of listening ports. How can I make the ports listen for TCP connection. Any walk through on configuration of iptables and port forwarding would also be highly appreciated! ... View more