Set attributes in the `site` table

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 :doc:`site </guides/admin-guides/references/man5/site.5>` 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

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 :ref:`dns_label`

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