Set attributes in the site table

1. Verify the following attributes have been correctly set in the xCAT site table.

   • domain

   • forwarders

   • master [1]

   • nameservers

   For more information on the keywords, see the DHCP ATTRIBUTES in the site table.

   If the fields are not set or need to be changed, use the xCAT chdef command:

   chdef -t site domain="domain_string"
   chdef -t site fowarders="forwarders"
   chdef -t site master="xcat_master_ip"
   chdef -t site nameservers="nameserver1,nameserver2,etc"
   

[1]

The value of the master attribute in the site table should be set as the IP address of the management node responsible for the compute node.

Initialize DNS services

1. Initialize the DNS [2] services on the xCAT Management Node:

   makedns -n
   

   Verify DNS is working by running nslookup against your Management Node:

   nslookup <management_node_hostname>
   

   For more information on DNS, refer to Cluster Name Resolution

[2]

Setting up name resolution and the ability to have hostname resolved to IP addresses is required for xCAT.