Red Hat Summit3.5. Configuring DNS, DHCP, and TFTP on Capsule Server
To configure the DNS, DHCP, and TFTP services on Capsule Server, use the satellite-installer command with the options appropriate for your environment. To view a complete list of configurable options, enter the satellite-installer --scenario satellite --help command.
Any changes to the settings require entering the satellite-installer command again. You can enter the command multiple times and each time it updates all configuration files with the changed values.
To use external DNS, DHCP, and TFTP services instead, see 4章Configuring Capsule Server with External Services.
Adding Multihomed DHCP details
If you want to use Multihomed DHCP, you must update the network interface file.
In the
/etc/systemd/system/dhcpd.service.d/interfaces.conffile, edit the following line to add Multihomed DHCP:[Service] ExecStart=/usr/sbin/dhcpd -f -cf /etc/dhcp/dhcpd.conf -user dhcpd -group dhcpd --no-pid eth0 eth1 eth2If this file does not exist already, create it.
Enter the following command to perform a daemon reload:
# systemctl --system daemon-reloadEnter the following command to restart the dhcpd service:
# systemctl restart dhcpd.service
Prerequisites
-
You must have the correct network name (
dns-interface) for the DNS server. -
You must have the correct interface name (
dhcp-interface) for the DHCP server. - Contact your network administrator to ensure that you have the correct settings.
Procedure
Enter the
satellite-installercommand with the options appropriate for your environment. The following example shows configuring full provisioning services:# satellite-installer --scenario capsule \ --foreman-proxy-dns true \ --foreman-proxy-dns-managed true \ --foreman-proxy-dns-interface eth0 \ --foreman-proxy-dns-zone example.com \ --foreman-proxy-dns-reverse 2.0.192.in-addr.arpa \ --foreman-proxy-dhcp true \ --foreman-proxy-dhcp-managed true \ --foreman-proxy-dhcp-interface eth0 \ --foreman-proxy-dhcp-range "192.0.2.100 192.0.2.150" \ --foreman-proxy-dhcp-gateway 192.0.2.1 \ --foreman-proxy-dhcp-nameservers 192.0.2.2 \ --foreman-proxy-tftp true \ --foreman-proxy-tftp-managed true \ --foreman-proxy-tftp-servername 192.0.2.3
For more information about configuring DHCP, DNS, and TFTP services, see the Configuring Network Services section in the Provisioning Guide.
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