Change the Device Connectivity Port from TCP 995

By default, a CTERA Edge Filer and CTERA Drive Share/Protect (Agent) establish a connection and perform cloud backup and synchronization with CTERA Portal over port TCP 995. These devices can be configured to connect to the CTERA Portal over a different port by changing this default port in the portal configuration.

Step-by-step guide

To change the default port used by devices to connect to the portal:

1. Access the DNS Manager and for the portal server click Forward Lookup Zones.
2. Open the domain for the DNS Suffix of the portal, and create a new subdomain under it with the name of the team portal you want to join the edge filer to.
3. Right-click on the subdomain and select Other New Records….
4. Select Service Location (SRV) from the resource record type list, and click Create Record.
5. Enter the following details:
   Service – _ctera
   Protocol – _tcp
   Priority – 10
   Weight – 5
   Port Number – The port number you want to use instead of 995.
6. Click OK.
7. Using SSH, log in as root to a portal application server.
8. Run the following commands:

   firewall-cmd --add-port=<newPort>/tcp --permenant
   firewall-cmd --reload
   

   where newPort is the TCP port to use for connectivity.**
9. Optionally verify that the new port is open on the server by running the following command firewall-cmd --list-ports to display the list of ports including the new port.
10. Repeat steps 7 to 9 for every portal application server in the cluster.
11. Using Telnet, log in to the CTERA Portal as root.
12. Run the following commands:

    set-list /settings/portSettings/ newPort
    set /settings/defaultPort newPort
    

    Note

    If you change the port to TCP 443 for secure access over HTTPS, you must also change the administration portal’s HTTPS access port so that both HTTPS and CTTP traffic do not go over the same port.

13. Run portal-manage.sh restart on each server.

To change the administration portal HTTPS access port when the device connectivity port is set to 443:

1. In the global administration view, select Settings > Control Panel in the navigation pane.
2. Select Global Settings.
   The Global Settings page is displayed.
3. In the Administration Console area, specify the new HTTPS port number in the HTTPS Port field.
   Use a port in the range 1024 to 65535.
4. Click Save.
5. Restart all the portal servers, by running portal-manage.sh restart on each server.
   Restart the servers in the following order:
   • Main database server.
   • Replication database server, if available.
   • All application and preview servers.

The change is implemented after the restart.

Configure the firewalls on the CTERA Portal servers to enable TCP traffic between the servers on the changed HTTPS port.

To connect to the administration portal after changing the administration access port, append the port number to the FQDN of your portal. For example, to connect to Example’s administration portal using HTTPS port 2222, use the following address: https://example.ctera.me:2222/admin

Related articles

Connect an Edge Filer to a Portal over TCP 443
Connect a CTERA Drive Share/Protect (Agent) to a CTERA Portal over TCP 443