Appendix A. Firewall Rules
The following table outlines the firewall rules that the
rhel-osp-installer command configures when you install the user interface. 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 user interface for the installer. |
| 8140 | TCP | Puppet | Communication between Puppet clients and the Puppet master. |