2.5. zookeeper

# tar xvf netcat-0.7.1.tar.gz
# cd netcat-0.7.1
# ./configure --prefix=/usr/local/netcat/
# make install
# ln -s /usr/local/netcat/bin/nc /usr/bin

# echo conf|nc  

# vim /usr/local/zookeeper/conf/zoo.cfg

4lw.commands.whitelist=*

# service zookeeper restart