Technical Note: CSTN 00039: Enabling the IPv6 protocol in the CyOPs appliance

This article provides you information about how you can enable the IPv6 protocol in the CyOPs™ appliance to access CyOPs™ over an IPv6 address. 

By default, IPv6 is disabled in the CyOPs™ appliance (version 5.0.0 or earlier). You require to execute the shell script attached with this article to enable IPv6.

Steps to execute the shell script

1. Login to your CyOPs™ terminal.
2. Type sudo su. 
3. Copy the enable_ipv6-v3.sh script, which is attached with the article. 
4. Execute the script using the following command:
   sh enable_ipv6-v3.sh

The script performs following tasks: 

1. Enables the IPv6 protocol. 
2. Configures the SSL certs for inter-service communication. 
3. Updates the CyOPs™component to use IPv6 protocol. 
4. Restarts CyOPs™services.
5. The script might also initiate reboot of systems based on the grub settings.

Notes:  

1. This script does not disable IPv4
2. Nginx is configured for both IPv4 and IPv6 
   1. Incase you want make nginx listen to only IPv6, then perform the following steps:
      1. Edit the /etc/nginx/conf.d/cyops-api.conf file as follows:
         Add listen [::]:443 ipv6only=on;
         Remove all other listen statements.
      2. Restart the nginx service using the following command:
         systemctl restart nginx