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Draft: update port interface howto

Closed Dominik Vašek requested to merge feature/os-interface into master
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@@ -14,7 +14,7 @@ In OpenStack, you can attach a network interface to an instance to provide addit
@@ -14,7 +14,7 @@ In OpenStack, you can attach a network interface to an instance to provide addit
Before you begin, you should have the following:
Before you begin, you should have the following:
- An [instance](../getting-started/creating-first-infrastructure.md) that you want to attach a network interface to
- An [instance](../getting-started/creating-first-infrastructure.md) that you want to attach a network interface to
- A pre-existing OpenStack network that you want to attach to the instance
- A pre-existing OpenStack [network](../how-to-guides/create-networking.md) that you want to attach to the instance
## Attaching Interface
## Attaching Interface
@@ -100,6 +100,6 @@ $ openstack server show <server_id>
@@ -100,6 +100,6 @@ $ openstack server show <server_id>
## Security Considerations
## Security Considerations
- Limit the use of network interfaces: Only attach network interfaces to instances that require them. Avoid attaching network interfaces to instances that do not require them to minimize the attack surface.
- **Limit the use of network interfaces**: Only attach network interfaces to instances that require them. Avoid attaching network interfaces to instances that do not require them to minimize the attack surface.
- Review firewall rules: Review and update firewall rules to ensure that only necessary ports and services are accessible from the network interface.
- **Review firewall rules**: Review and update firewall rules to ensure that only necessary ports and services are accessible from the network interface.
- Use security groups: Use security groups to define the network traffic that is allowed to or from the instance.
- **Use security groups**: Use security groups to define the network traffic that is allowed to or from the instance.
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