![networking - unable to ping Oracle port 1521 in Azure VM but other ports are working fine - Stack Overflow networking - unable to ping Oracle port 1521 in Azure VM but other ports are working fine - Stack Overflow](https://i.stack.imgur.com/pgXu9.png)
networking - unable to ping Oracle port 1521 in Azure VM but other ports are working fine - Stack Overflow
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.
![Linux 6.7 telnet: connect to address x.x.x.x: No route to host – Oracle Labs by Yuri Khazin, Oracle DBA Linux 6.7 telnet: connect to address x.x.x.x: No route to host – Oracle Labs by Yuri Khazin, Oracle DBA](https://oraclelabs.files.wordpress.com/2016/05/image.png)
Linux 6.7 telnet: connect to address x.x.x.x: No route to host – Oracle Labs by Yuri Khazin, Oracle DBA
![networking - unable to ping Oracle port 1521 in Azure VM but other ports are working fine - Stack Overflow networking - unable to ping Oracle port 1521 in Azure VM but other ports are working fine - Stack Overflow](https://i.stack.imgur.com/VqPjJ.png)