Before beginning your ISR installation, ensure you have completed the following prerequisites:

1. Have at least three servers (physical or virtual) with Oracle Linux Releases 7.2 - 7.6 installed.
2. Have access to the ISR rpms:
   • isr-Index-<release#>.x86_64.rpm
   • isr-Dashboard-<release#>.x86_64.rpm
   • isr-rss-<release#>.x86_64.rpm
   • isr-Face-<release#>.x86_64.rpm (optional)

   Note:

   You may access these files via https://edelivery.oracle.com..
3. Configure a Linux User named isradm on each of the Linux instances created in step 1 to allow you to automatically gain access to config and log files. Once you have configured the isradm Linux user, you must add the user to the "sudoers" group.
4. Verify that the hosts you are installing the ISR components on are connected to the internet.

   Note:

   If your ISR hosts do not have internet connectivity, see "Oracle Public Yum Repository Configuration and Offline Installation Pre-Requisites in the Installation Guide.
5. Oracle Linux 7 has the yum package management utility configured by default with access to the "public-yum.oracle.com" repositories in the file located at /etc/yum.repos.d/public-yum-ol7.repo. If, for some reason, this file needs to be created, see the Appendix, "Oracle Public Yum Repository Configuration File" in the Oracle Communications Interactive Session Recorder Installation Guide, which contains the specific repository entries.
6. Configure interfaces; ISR expects network configuration to include 4 interfaces, connecting to separate Administration, Local, Data, and Voice networks. Refer to the Oracle Communications Interactive Session Recorder Security Guide for more information on networking and trusted boundaries.

   For more information on configuring networking in Oracle Linux 7, see the man nmtui guide and http://www.unixarena.com/2015/04/rhel-7-network-management-nmcli-or-nmtui.html.

7. If access to the external yum repository is gated by a proxy, ensure the proxy parameter in the /etc/yum.conf file is set to:

   proxy=http://<your_proxy_host>