@TraeTimmerman
A manual installation of ArcGIS Enterprise in an AWS ec2 instance can easily become a dauting task and you might end up not following best practices.
Instead of a manually deployment you shall try to deploy using the AWS CloudFormation Template.
AWS CloudFormation and ArcGIS—ArcGIS Enterprise in the cloud | Documentation for ArcGIS Enterprise
This will properly configure the AWS ec2 instance local firewall and properly install and configure Portal + WebAdaptor for Portal + ArcGIS Server + WebAdaptor for Server + Datastore, and correctly install the SSL Certificate and correctly configure the web context URL in Portal and ArcGIS Server.
The Elastic Public IP of the ec2 instance is not used in the ArcGIS Enterprise Configuration, neither in Portal, nor in ArcGIS Server, nor in the WebAdpators, nor in the DataStore.
The Elastic Public IP is only used in the External URL. That is why the Elastic Public IP of the ec2 instance can change and you just need to remap the External URL to resolve to the new Elastic Public IP and everything shall continue to work fine with ArcGIS Enterprise.
In an AWS ec2 instance the Private IP is used in the Portal configuration and the Private IP is used in the WebAdaptors (Portal and Server) as well. We do not use the Elastic Public IP.
Note, if you take an ec2 instance image backup and try to use the image to create another machine, then you must create the new machine with the same private ip or portal will not work anymore, there is no workaround for this, except to create the new machine with the same private ip, the web adaptors can be reinstalled using a new private ip, no problem there, and ArcGIS Server has no dependencies with the private ip, thus ArcGIS Server will continue to work even if the private ip changes, the problem is only with portal.
There are other tools to create an ArcGIS Enterprise Deployments in AWS, see link below.
Deployment options on Amazon Web Services—ArcGIS Enterprise in the cloud | Documentation for ArcGIS ...
I hope this helps to clarify your question.
| Marcelo Marques | Principal Product Engineer | Esri |
| Cloud & Database Administrator | OCP - Oracle Certified Professional |
I work with Enterprise Geodatabases since 1997.
“ I do not fear computers. I fear the lack of them." Isaac Isimov