Prerequisite

This guide assumes you have a running RHEL server with access to the Red Hat repositories (repos).
The Red Hat repos are typically made available via two methods:
⦁ an active Red Hat subscription – typically used when RHEL runs on-prem, OR
⦁ Red Hat Update Infrastructure (RHUI) – available with cloud providers (e.g. Azure and AWS) to mirror Red Hat-hosted repos and automatically make them available to official RHEL cloud VMs.

Note: VisibleThread Readability requires port 443 and port 22.
VisibleThread Readability requires 'sudo su' permission to install correctly.

Note: Deployments have been tested on RHEL versions 7.2, 7.3, 7.4, 7.5, 7.6, 7.8
Deployments have been tested on VMware ESX Vsphere, Hyper-V, Azure, AWS

Dependencies

VT API and Writer .rpm has some dependencies (httpd, openssl, java, postgres) that are available in the Red Hat repos. For Postgres 10, we require that the Red Hat Software Collections (RHSCL) repository be enabled.

To add the Postgres 10 RHSCL repository is named differently depending on how you access repos. Below are the common commands to enable the RHSCL repo in different environments run:

To verify that the above command worked:
1. run sudo yum repolist
2. look for an entry like “Red Hat … RHSCL” or “Red Hat Software Collections…”

Deploying the VT Writer RPM

The VT Writer and API .rpm's  are available to download here:

https://docs.visiblethread.com/download/visiblethread-api-0.22-1.x86_64.rpm
https://docs.visiblethread.com/download/visiblethread-readability-2.4.5-1.x86_64.rpm

To verify that the download completed successfully you can check the md5 hash :

2793078d5a256433d3e336cac7f5a7e1 visiblethread-api-0.22-1.x86_64.rpm

6d65630cda98f398be819b670d9548ff visiblethread-readability-2.4.5-1.x86_64.rpm

To install the RPM just run the following command;      

yum install -y visiblethread-api-0.22-1.x86_64.rpm

yum install -y visiblethread-readability-2.4.5-1.x86_64.rpm

After installing the VT Writer RPM your VT Writer server is now ready for use !

Details of how to setup and configure the server can be found here:

https://support.visiblethread.com/hc/en-us/article_attachments/360059731632/VisibleThread_Readability_and_Email_Server_Configuration_Help_v_2.4.4.pdf