An Overview of Red Hat Enterprise Virtualization - Getting Started with Red Hat Enterprise Virtualization - page 13

Source Destination Port/Protocol Purpose

Hypervisor
Hosts

Hypervisor Hosts 16514/TCP Used for libvirt virtual machine migration

Hypervisor
Hosts

From 49152 to 49216/
TCP

Hypervisor Hosts Used for virtual machine migration and fencing

Hypervisor Hosts / RHEV-
M

Hypervisor
Hosts

To provide VDSM communication with manager and hypervi-
sors

54321/TCP

Directory server firewall requirements

The following ports are to be opened if you wish to integrate RHEV-M with directory ser-
vices for user authentication:

Source Destination Port/Protocol Purpose

RHEV-M Directory server 88 and 463/(TCP/UDP) Used for the Kerberos authentication

RHEV-M Directory server 389 and 636/TCP Lightweight Directory Access Protocol ( LDAP ) and LDAPS over SSL

Remote database server firewall requirements

The following ports are to be opened if you wish to use the remote PostgreSQL database
instance with RHEV-M:

Source Destination Port/Protocol Purpose

RHEV-M Remote PostgreSQL database server 5432/(TCP and UDP) Used as a default port for PostgreSQL database connections

User accounts and groups

The following users and groups are created by the RHEV-M setup tool in order to support
virtualization on the manager system. If existing UIDs and GIDs on the host conflict with
the default values used during the VDSM and QEMU installation, a conflict occurs.