Managing Security Groups

Security Groups in Qumulus enable virtual firewall capabilities to manage incoming and outgoing network traffic for your virtual instances. When security groups are correctly managed, organizations improve their network security and achieve better operational efficiency.

Accessing Security Groups

To manage your security groups:

1. Sign in to your Qumulus Cloud account.

2. Navigate to Security > Security Groups.

3. Choose your desired group by clicking on its name.

Understanding Security Group Rules

Security Groups contain two different rule types which include inbound rules and outbound rules.

• Inbound Rules: Define the permitted incoming traffic.

• Outbound Rules: Control the allowed outgoing traffic.

Each rule is detailed as follows:

Field	Description
Ether Type	Specifies the IP version (IPv4 or IPv6).
Type	Indicates the service or protocol (e.g., SSH, HTTP, HTTPS).
Protocol	Network protocol used (TCP, UDP, ICMP, etc.).
Port Range	Specifies the ports that the rule will either regulate specifically or through ranges.
Remote IP	Allowed IP addresses or CIDR blocks.
Description	Optional note or context for the rule.

Creating Inbound and Outbound Rules

Adding an Inbound Rule

To create a new inbound rule:

GUIDEFLOW

1. Choose the desired Security Group.

2. Navigate to the Inbound Rules tab.

3. Click on Create Inbound Rule in the right corner.

4. Set the following parameters:

• Type: Select from a list of predefined protocols (SSH, HTTP, PostgreSQL, etc.) or choose a custom protocol.

• Protocol & Port Range: Automatically set based on the selected Type, or it can also be manually configured.

• Remote Type: Select from Custom IP, Security Group, My IP, or Anywhere.

• Remote IP: Specify the IP or CIDR block (e.g., 192.168.1.0/24).

• Description: (Optional) Provide additional Context or notes.

1. Hit the ✅ button to execute the rules.

Adding an Outbound Rule

You can control outbound traffic flow by using the same procedure under the Outbound Rules tab.

Recommended Best Practices

• Open only necessary ports for your applications.

• Limit your inbound rules to specific IP addresses or CIDR blocks whenever possible.

• Security group rules should be audited periodically and all unused entries should be removed.