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# Prerequisites

The following section lists the Synchronizer prerequisites.

In this topic:

## Hardware requirements

For each node (server/VM) where the Synchronizer will be running, the following are hardware requirements:

CPU | Quad Core AMD64 processor or equivalent x86-compatible processor
Memory (RAM) | 16 GB minimum
Free Disk Space | 80 GB minimum
Operating System | Red Hat Enterprise Linux (RHEL) 6.5 or higher CentOS 6.5 or higher

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## Database requirements

The following are the Synchronizer database requirements:

- Oracle 19c, 12c - Standard or Enterprise edition, character set AL32UTF8

- MS SQL Server 2019, 2017, 2016

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## Software requirements

The following are the Synchronizer software requirements:

- OpenJDK 1.8 update 65 or higher, or compliant with this version of OpenJDK.

  To install Java, use OpenJDK by running:

      yum install -y java-1.8.0-openjdk-devel

  If you can only use OpenJRE, see Running the Synchronizer service on OpenJRE.

- In ALM Octane on Windows environments you need to install the cURL utility on your Windows machine, placing curl.exe in the octane\install folder.

  This enables you to run the generateadminapikey.bat command which generates an API client ID and secret to communicate with ALM Octane.

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## Permissions

The following are the Synchronizer permission requirements:

File system

- Regular user for installation process, or root

- Root for installing OS service

- Write permissions to the log folder specified in the property general/logFolder, in the .yml configuration file described in Install the Synchronizer

- Write permissions to the repository folder specified in the property repository/rootFolder, in the .yml configuration file described in Install the Synchronizer

Oracle

- CREATE USER

- CREATE SESSION WITH ADMIN OPTION

- CREATE TABLE WITH ADMIN OPTION

- DROP USER

- CREATE SEQUENCE WITH ADMIN OPTION

- SELECT on SYS.DBA_USERS

MSSQL

- dbcreator

- securityadmin

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## Firewall requirements

On the Synchronizer server, you must have an open inbound port. By default, the Synchronizer uses port 8080 for HTTP or port 8443 for HTTPS (SSL).

The service uses the following:

Purpose | Port (default) | Config property name in sync.yml
--- | --- | ---
Inbound communication to the Synchronizer | 8080 SSL: 8443 | sync/general/port
Outbound communication to the database | Oracle: 1521 MSSQL: 1433 | sync/database/connectionString
Outbound communication to ALM Octane | 8080 | serviceLocations/octane
Communication between nodes in cluster configuration | 5701 | sync/distributedCache/port
Outbound communication to Synchronizer | 8080 | sync/general/port

https://admhelp.microfocus.com ALM Octane 8942
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