#### 6.4.1 po_cos_naming

po_cos_naming is a stand alone server that supports CORBA COS Naming specification. When launched, it returns its `IOR` and `corbaloc` that can then be used by other CORBA applications.

If you want po_cos_naming to return the same `IOR` or `corbaloc` at each startup, you must set a default listen port for the protocol personalities you use. See Configuring protocol personality preferences for more details.