Environment settings such as blocked ports in the firewall and misconfigured OS permissions may sometimes lead to OPMN and AdminServer startup failures. For example, if you are unable to start up OPMNCTL because you are receiving the error:
“RCV: Permission denied” and “Communication error with the OPMN server local port.”
In addition (at the same time), if the AdminServer fails to start due to security settings, we recommend trying the following options:
- Check if the 6700 port range is blocked by the firewall. OPMN listens to ports in the 6700 range by default (unless a different specification was mentioned by staticports.ini during the initial configuration).
- Make sure that the file $DOMAIN_HOME/servers/AdminServer/data/ldap/ldapfiles/EmbeddedLDAP.tran is owned by the install user. If not, change the ownership to the install user.
- If both options above do not work, try to restart the Linux server. We have seen everything start up normally after a reboot when these problems occur.
