Page Comparison

...

1. Verify the servers against the Hardware Requirements for Elasticsearch.

2. Appropriately cable the servers to your network infrastructure so they are reachable from the Swarm nodes.
   Important:
   Be sure that Elasticsearch nodes are not accessible externally; only the Swarm nodes and Gateway servers should be able to access Elasticsearch.

3. Install RHEL/CentOS 7 Linux and apply any required updates. Contact DataCore Support for questions about enabling or disabling IPv6.
   

   InfotitleBest practice

   Best Practice:
   Use RHEL/CentOS

   Minimal Server (with Compatibility Libraries),

   minimal server with compatibility libraries which is

   the

   standard for Swarm development and testing. RHEL/CentOS

   Desktop

   desktop consumes extra resources that Elasticsearch

   can use,

   uses and alters the OS configuration to emphasize user interface vs

   .

   server performance

   , and

   . It also requires additional updating and security maintenance.

4. Configure the servers with static IP addresses.

5. Configure DNS, if desired.

6. Adjust the server firewall rules. See https://firewalld.org.
   Adjust the rules to permit the following ports if on CentOS 7 install and run iptables:

   • Allow public access on these ports:

     Code Block
     language bash
     firewall-cmd --permanent --zone=public --add-port=9200/tcp firewall-cmd --permanent --zone=public --add-port=9300/tcp firewall-cmd --reload

   • Search the Support portal for SwarmNFS 2.x - Access to Elasticsearch (IPTables) for SwarmFS access.

...