Port 1158

Port 1158 is designated as dbControl OMS by the IANA. It is used by Oracle for Oracle Database Control. To access Database Control from the system on which it is running, the URL is http://localhost:1158/em.

On an Oracle server, the port is specified in $ORACLE_HOME/install/portlist.ini with the following line: 

Enterprise Manager Console HTTP Port (db_name) = 1158

References:

  1. EMAGENT PORT 80 10gR2 and AppExp 2.0
    March 27, 2006
    Oracle Technology Network Discussion Forums
  2. Database Security and Patches - Part 3
    December 14, 2005
    Database Journal
  3. 7 Oracle Real Application Clusters Post-Installation Procedures
    Oracle® Database Oracle Clusterware and Oracle Real Application Clusters Installation Guide
    10g Release 2 (10.2) for Linux
    Part Number B14203-08