Description: A bastion is a secure server that acts as a gateway between a trusted network and an untrusted network. Its primary function is to provide a controlled and secure access point, allowing users to access resources on an external network without compromising the security of the internal network. This type of server is characterized by its minimal configuration, where only the necessary services are installed to fulfill its specific function, thereby reducing the attack surface. Additionally, bastions often feature robust security measures, such as firewalls, intrusion detection systems, and multi-factor authentication, to protect the information that transits between networks. In various computing environments, bastions are essential for managing access to instances and services, facilitating resource management in containerized architectures and cloud services. Their implementation is crucial in microservices and container architectures, where tools like Terraform and orchestration platforms can be used to manage infrastructure securely. In summary, a bastion not only serves as an access point but is also a vital component in the network security strategy of any organization.
