Appendix A. Firewall Rules

The following table outlines the firewall rules the rhel-osp-installer command configures. The installer uses these ports to communicate with and control other machines in the environment. This table is provided for your information; no further configuration is necessary beyond that provided by rhel-osp-installer.

Table A.1. Red Hat Enterprise Linux OpenStack Platform Installer Firewall Rules

Ports Protocols Service Purpose
22 TCP SSH Connecting to other machines on the private network that the installer defines.
53 TCP, UDP DNS Resolving the host names and addresses of machines on the private network that the installer defines.
67 TCP DHCP Assigning IP addresses to machines on the private network that the installer defines.
69 TCP TFTP Enabling the PXE booting of machines on the private network that the installer defines.
80, 443 TCP HTTP, HTTPS The Apache web server for hosting the installer's user interface.
8140 TCP Puppet Communication between Puppet clients and the Puppet master.