##System Configuration and Preparation##
I have used the Ubuntu14 system to build a personal local cluster. The number of personal local clusters is kept at 6. Later in the article, I will keep the screenshots for viewing. This article and the series of articles that follow are described in the cluster construction under the CentOS system; The degree of open source of the Ubuntu system is relatively good, and there is no need to do too many of the following steps, so I hereby write this article to record the work that needs to be prepared before setting up a cluster under Centos6.5:
1. The first thing to do is to turn off the firewall and selinux on the centos system ; Related content about selinux will be given in the knowledge connection that will be reissued later in the article;
(1) First turn off the firewall: There
are two types of firewall shutdown, one is temporary shutdown, the other is permanent Close;
a. Close command
service iptables stop
b. Permanently turn off the firewall
chkconfig iptables off
c. Run the two commands at the same time, and check the firewall's shutdown status after running
service iptables status