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In our previous post, we configured the firewall and granted $PROGRAMMER_LAPTOP_IP access to the robot via SSH. But controlling a robot involves more than just external connections—a robot is a complex ecosystem of internal components, including a base controller, cameras, scanners, and movement modules. These components (ROS2 nodes) must communicate securely with each other. So, how do we secure internal communication between ROS2 nodes?

Apr 30, 2025 - 12:34
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In our previous post, we configured the firewall and granted $PROGRAMMER_LAPTOP_IP access to the robot via SSH. But controlling a robot involves more than just external connections—a robot is a complex ecosystem of internal components, including a base controller, cameras, scanners, and movement modules. These components (ROS2 nodes) must communicate securely with each other.

So, how do we secure internal communication between ROS2 nodes?

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