Installing munge

Procedure

1. Use PuTTY to log in to the server as the root user.
2. Run the following command to mount the /home directory of the master node to testnode1 and testnode2:

   mount master:/home /home

3. Install the munge RPM package on testnode1 and testnode2.

   cd /home/mungerpm

   yum localinstall -y munge*

4. On the master, testnode1, and testnode2 nodes, change the permissions for the munge directory.

   chmod -Rf 700 /etc/munge

   chmod -Rf 711 /var/lib/munge

   chmod -Rf 700 /var/log/munge

   chmod -Rf 0755 /var/run/munge

5. Start the ntpd service on the master node.

   yum install -y ntp

   systemctl start ntpd

6. On testnode1 and tesnode2, synchronize the system time with the master node.

   ntpdate master

7. Copy /etc/munge/munge.key from the master node to testnode1 and testnode2.

   scp /etc/munge/munge.key testnode1:/etc/munge/

   scp /etc/munge/munge.key testnode2:/etc/munge/

8. On testnode1 and tesnode2, change the permissions for the /etc/munge/munge.key file.

   chown munge.munge /etc/munge/munge.key

9. Start munge on the master node, testnode1, and testnode2.

   systemctl start munge

   systemctl enable munge