5. Verify the xCAT networks configuration. You can run the  lsdef  command to list the configuration of a specific xCAT network or  networks. The following example lists the management network and application network  for InfiniBand port 1: You can run the  tabdump  command to list the configuration of all xCAT networks: The xCAT configures the DNS server based on the attributes of the  site  table, the  /etc/hosts  file, and node definitions. The  makedns  command applies the configuration. The following attributes of the  site  table are used to configure the DNS server: For more information, see the manual page of the  site  table by running the following  command: $ man 5 site Running the  makedns  command generates the following configuration files for the DNS server,  and reloads it: 78  IBM High-Performance Computing Insights with IBM Power System AC922 Clustered Solution  GLYPH<SM590000> /etc/named.conf : Main configuration file (generated by  makedns -n ) GLYPH<SM590000> /var/named/* : Zone files for network names and addresses (generated by  makedns -n ) 5.4.6 DNS server $ lsdef -t network  net-mgmt,net-app-ib Object name: net-mgmt gateway=<xcatmaster> mask=255.255.0.0 mgtifname=enP5p1s0f0 net=10.1.0.0 tftpserver=10.1.0.1 Object name: net-app-ib mask=255.255.0.0 net=10.10.0.0 $ tabdump networks #netname,net,mask,mgtifname,<...> "net-mgmt","10.1.0.0","255.255.0.0","enP5p1s0f0",<...> "net-svc","10.2.0.0","255.255.0.0","enp1s0f3",<...> "net-app-ib","10.10.0.0","255.255.0.0",,,,,,,,,,,,,,,, dnsinterfaces : Host name (optional) and network interfaces for the DNS server to  listen on. domain : DNS domain name for the cluster. forwarders : DNS servers for resolving non-cluster names, that is, the site’s or  external DNS servers. master : IP address of the xCAT management node on the management (OS)  network, as known by the nodes. nameservers : DNS servers that are used by the compute nodes (usually, the IP  address of the management node). The value  < xcatmaster >  indicates  that the management node or service node that is managing a node  (automatically defined to the correct IP address in the respective xCAT  network) is more portable.