Hardening an Ubuntu Server for Public OpenClaw Deployment
The security of a server intended for applications such as OpenClaw is not based solely on the software itself, but largely on the hardening of the underlying operating system. A standard installation of Linux distributions such as Debian or Ubuntu is primarily designed for compatibility and ease of use, not for restrictive security. This initially results in an unnecessarily large attack surface. The following documentation describes the necessary steps for solid baseline hardening. Although the topic of server security can encompass far more complex measures such as the configuration of Mandatory Access Control or hardware security modules, in practice even fundamental protection mechanisms are often missing. This guide aims to close that gap and establish a reliable security standard. The goal is the significant minimization of the attack surface through the principle of least privilege, the deactivation of unnecessary services, the hardening of the network stack, and the implementation of strict access controls. ...