https://community.cloudera.com/t5/Support-Questions/remote-access-to-clusters-through-hadoop-fs-ls/m-p/224428#M186292 <P><A rel="user" href="https://community.cloudera.com/users/47200/sihiyassine.html" nodeid="47200">@Yassine<BR /></A></P><P>Alternative of telnet can be "netcat" as following:</P><PRE># nc -v 10.166.54.12 8020 # nc -v $REMOTE_NN_HOSTNAME 8020</PRE><P>.</P><P>Also please check of on the remote NameNode if this port 8020 is actually bound to 0.0.0.0 address (or 10.166.54.12) or some other address? Following command we need to run on the host which has IP Address 10.166.54.12 to know if the port 8020 is actually opened and listening on which IP Address?</P><PRE># netstat -tnlpa | grep 8020&lt;br&gt;</PRE><P>.<BR /><A rel="user" href="https://community.cloudera.com/users/47200/sihiyassine.html" nodeid="47200"></A> </P> Mon, 26 Feb 2018 20:34:34 GMT jsensharma 2018-02-26T20:34:34Z