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• changing the hostname
• adding or removing DNS servers
• changing IP addresses
• changing which NIC is used as the management interface
• adding a new physical NIC to the server
Hostname
The system hostname is defined in the pool-wide database and modified using the xe host-set-hostname-
live CLI command as follows:
xe host-set-hostname-live uuid=<host_uuid> host-name=example
The underlying control domain hostname changes dynamically to reflect the new hostname.
DNS servers
To add or remove DNS servers in the IP addressing configuration of a XenServer host, use the pif-
reconfigure-ip command. For example, for a PIF with a static IP:
pif-reconfigure-ip uuid=<pif_uuid> mode=static DNS=<new_dns_ip>
Changing IP address configuration for a standalone host
Network interface configuration can be changed using the xe CLI. The underlying network configuration
scripts should not be modified directly.
To modify the IP address configuration of a PIF, use the pif-reconfigure-ip CLI command. See the section
called “pif-reconfigure-ip” for details on the parameters of the pif-reconfigure-ip command.
Note:
See the section called “Changing IP address configuration in resource pools” for details on changing host IP
addresses in resource pools.
Changing IP address configuration in resource pools
XenServer hosts in resource pools have a single management IP address used for management and
communication to and from other hosts in the pool. The steps required to change the IP address of a host's
management interface are different for master and other hosts.
Note:
Caution should be used when changing the IP address of a server, and other networking parameters.
Depending upon the network topology and the change being made, connections to network storage may
be lost. If this happens the storage must be replugged using the Repair Storage function in XenCenter, or
the pbd-plug command using the CLI. For this reason, it may be advisable to migrate VMs away from the
server before changing its IP configuration.
Changing the IP address of a pool member host
1. Use the pif-reconfigure-ip CLI command to set the IP address as desired. See Appendix A, Command
line interface for details on the parameters of the pif-reconfigure-ip command:
xe pif-reconfigure-ip uuid=<pif_uuid> mode=DHCP
