Dr.who is running on my CDH 6.3, I've seen its crontab also using YARN user:     I've already remove the files of this and I want to implement some restrictions using firewalld,   how can I block this virus on running on my YARN 8088? do I need to block the 8088 port in all nodes? and what IP addresses do I need to insert for whitelisting? below is my current rules in firewalld:   public target: default icmp-block-inversion: no interfaces: sources: services: dhcpv6-client ssh ports: 8042/tcp 7191/tcp 2181/tcp 3181/tcp 4181/tcp 9010/tcp 8044/tcp 8041/tcp 8040/tcp 8091/tcp 9091/tcp 9995/tcp 9994/tcp 7184/tcp 7185/tcp 8084/tcp 8087/tcp 9087/tcp 9999/tcp 9998/tcp 9867/tcp 9866/tcp 9864/tcp 9865/tcp protocols: masquerade: no forward-ports: source-ports: icmp-blocks: rich rules: rule family="ipv4" source address="195.3.146.118" reject   Appreciate your help on this! thanks!   ... View more

Hi I've tried to implement firewall using the firewalld of my rhel7 server which is also our datanode, what rules and ports do I need to implement here so that the cloudera services is still functioning and will not block there connection?   firewall-cmd --list-all public target: default icmp-block-inversion: no interfaces: sources: services: dhcpv6-client ssh ports: protocols: masquerade: no forward-ports: source-ports: icmp-blocks: rich rules: ... View more

I want to create roles for my hive database management in Hue, but when I try to create roles using Sentry in Hue, I keep on getting this message : Unable to obtain groups in user : I've already input my admin user to Sentry admin user ... View more