Micro Focus Server Enterprise Edition for UNIX > Welcome > Deployment Licensing > Running Enterprise Server Manager > Temporary Files and Named Pipes

Temporary Files and Named Pipes

Enterprise Server License Manager uses named pipes for communicating between Enterprise Server and the License Manager. These named pipes reside by default in the /tmp directory (or more precisely in the directory specified by P_tmpdir in the header file /usr/include/stdio.h). The following named pipes are used:

A long-living pipe called ESLMF-common, which is the pipe used to send messages to License Manager.
Temporary named pipes, which are used for responses by License Manager. These have names of the form ESLMF-nnnnnnnnnn, where nnnnnnnnnn is the process id of the receiving process. These temporary response pipes are destroyed by the system, after having been used once.

Note: Note:

It is important to avoid destroying the ESLMF-common pipe. This can happen if, for instance, you delete all files in the P_tmpdir directory. If you do accidentally destroy this pipe, you can recover, by killing the License Manager and restarting it. See Recovering from a destroyed ESLMF-common pipe.

Enterprise Server License Manager is used in the same way as the development system License Manager. If you have the development system installed, see the section Temporary Files in the chapter Administering the License Manager in your Development System Licensing Guide.