Add asset server notes

Author: grantfitzsimmons

sphinx/server_management/managed_servers.md

@@ -190,7 +190,7 @@ This server hosts an installation of the Specify [web-asset-server](https://gith
 
 In the `attachments` directory, there are subdirectories for each database that we have configured. In those directories there are two folders, `originals` and `thumbnails`. One contains the original images and the other contains the thumbnails generated by Specify automatically.
 
-  
+You will need to manually change the owner of these dirs so it is accessible via docker when first setting this up.
 
 #### Backups
 
@@ -230,7 +230,8 @@ Backups for this server are handled by AWS.
 
 * This server has intermittent availability and can randomly become inaccessible. The issue arises because it is hosted on AWS using a 'spot instance'.
 
-* It has been known to occasionally stop working without any notice. To resolve this, we have had to restart the `web-asset-server` service. See more [research done in Slack here](https://specifydev.slack.com/archives/CC6V12D3J/p1699902819872219).
+* Ensure the bottle's port is not accessible externally, as this could lead to  the server.
+   If Port 8080 is open to public (bypassing nginx), it can lead to instability and other issues. See [this message in Slack](https://specifydev.slack.com/archives/C04AM8WSM89/p1719840986783489) for more information.