Public IP
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Objective
This guide explains how to use Public IP on Ruk-Com Cloud PaaS, with ordered procedures and practical verification points.
Before you begin
- Sign in with an account permitted to manage the relevant environment.
- Confirm the target environment, region and resources before saving changes.
- Create a backup or rollback plan before changing a production system.
Ruk-Com Cloud PaaS provides a Shared Load Balancer (SLB) as a starting point for users of all hosted applications on hardware nodes. However, for production environments, we recommend that requests be received and processed over a Public IP that creates a direct connection between the internet and the container specifically. Compared to accessing through SLB, this method ensures more security and efficiency.

Public IP can be attached to any software package in your environment (except Memcached node), providing a more stable solution and less risk of being affected by other applications. It also opens access to features such as FTP add-on, Custom SSL, debugging IDE, WebSockets, etc.
Ruk-Com Cloud supports 2 versions of Internet Protocol connections:
- Internet Protocol version 4 (IPv4)It is the fourth revision in IP development and is the first widely adopted protocol.
- Internet Protocol version 6 (IPv6)It is the latest version of IP, an upgrade from IPv4, and is designed to meet the need for more addresses. It provides better multicast routing and makes processing easier for routers.
To bind an external IP address to a specific node, you mustSet quantity Public IPv4 / Public IPv6required in the middle section of the topology wizard.

Note:In the case of attaching an external IP for a scaling nodehorizontalEach container within the layer is assigned its own set of IP addresses.
To find and manage IPs available in an environment, press the button to expand the list of nodes in the environment topology.

By hovering your mouse over the IP, you will have access to the following functions:
- Copy to Clipboard- Copy addresses in one click.
- Attach/Detach IP(s)- Allows adjusting the number of public IPs (both IPv4 and IPv6)
- Detach IP- Delete that address
More:
- Public IP is a paid option where you are charged for every hour of use. You can see the prices on the dashboard.
Quotas & Pricing > Pricing > Options
- If you enable Public IPs for any nodes in the environment, you will not be able to use the swap domains functionality. Consider using the swap Public IPs API instead.
- If working with multiple Public IPs attached, the external IP address (of each IPv4 and IPv6 type) is considered the primary address and only the last address can be deleted. It is used for both inbound and outbound traffic, while the remaining IPs can only be accepted.