Polycom 3725-76302-001LI Third-Party Software

DMA OperationsGuide Third-Party Software

16 Polycom, Inc.

Third-Party Software

The Polycom DMA system uses several open source software packages,

including the CentOS operating system. CentOS is an enterprise-class Linux

distribution that contains hundreds of open-source components. For more

information about CentOS, visit http://www.centos.org/.

The packages containing the source code and the licenses for all the open-

source software, including CentOS and its components, are included on the

Polycom DMA system software DVD, mostly in the

/SRPMS

directory.

The LGPL v2.1 license allows you to modify the LGPL code we use, recompile

the modified code, and re-link it with our proprietary code. Note that although

you’re free to modify the LGPL modules used in the Polycom DMA system in

any way you wish, we cannot be responsible if the changes you make impair

the system.

To replace an LGPL library with your modified version

1On the DMA DVD, find the source code for the module you want to

modify.

2Modify the source code and compile it.

3Go to Admin > Local Cluster > Security Settings, select Allow Linux

console access, and click Update.

4Contact Polycom Global Services for the root password for the Polycom

DMA server.

5Use ssh to log into the server as root.

6Upload the modified software via wget or scp.

7Find the module you’re replacing and install the new version to that

location.

8Reboot the system.

The following table contains license information for the open source software

packages used in the Polycom DMA system. Note that the source code and the

licenses for all the open-source software, including CentOS and its

components, are included on the Polycom DMA system software DVD. This

list is provided as a convenient reference.