Two listeners running: Port 8080 and Port 1521 (Oracle/OAS forum at Coderanch)
unable to ping Oracle port 1521 in Azure VM but other ports are working fine - Microsoft Q&A
DBT-06103 The port (1,521) is already used | DBA Knowledge Base
Traverse Oracle Monitor Troubleshooting – Kaseya
How to Open Port 1521 on Windows Server - Ed Chen Logic
What is Port 1521?
Change Oracle Listener port number from default 1521 to other
networking - unable to ping Oracle port 1521 in Azure VM but other ports are working fine - Stack Overflow
EC2 Oracle Open to the Internet | Security Best Practice
networking - unable to ping Oracle port 1521 in Azure VM but other ports are working fine - Stack Overflow
Traverse Oracle Monitor Troubleshooting – Kaseya
Migrating Oracle Databases From On-Prem to Silk + Azure Using SharePlex | Silk
Open a Firewall Port for Oracle
Network and Connectivity Requirements for Oracle Environments
Container Networks | SpringerLink
A quick guide to connecting to Oracle from SAS
How to use OCI Bastion Service to connect to your Private Resources – Database Heartbeat
Oracle Database Cloud — Open Ports on OCI | by Fathi Riadh | Medium
while trying to connect oracle DB in tableau server through connectors we are getting error previously its working fine can any one help me to resolve this.
Ports to Open in Firewalls
Linux 6.7 telnet: connect to address x.x.x.x: No route to host – Oracle Labs by Yuri Khazin, Oracle DBA
Configuring Enterprise Manager for Firewalls - 12c Release 1 (12.1.0.1)
Permitting Access for Oracle Database Ports in Oracle Compute Cloud Service Instances
