However, any server with the sole purpose of providing access control is technically a bastion host. Within your business, a bastion host would be a security method to protect your private network. Typically, a bastion host is placed outside your business firewall in a DMZ so that it is the only way through which someone can access your resources and data. If they are an authorized user–-like if their name is on the list-they can access your private network. The bastion host will verify your employee’s identity-much like the security guard mentioned above. If one of your employees wants to access your private network, they must connect to your bastion host using a secure connection such as SSH. When set up, a bastion host is connected to your private network, also known as a private subnet, and a public or external network like the Internet. You must be able to verify your identity to this security guard before you can access the building. If you are not on this list, you are not authorized to enter. This security guard has a list of people who are authorized to enter the building. You can think of a bastion host as a security guard that controls who can and cannot access a building. This allows for secure communication between branches and access to shared resources. This prevents unauthorized access to your business network, blocking hackers from accessing your resources and sensitive data.īastion hosts also provide an added layer of security if you have remote employees who need to access your business resources from various locations outside your physical office.Īdditionally, private networks with bastion hosts in place can connect geographically separated branches to your headquarters. Only authorized users can access the other computers on this private network using this bridge. Due to potential blocking of internet traffic by the internal network and hosted services, SSH may be the only means to access these services.Ī bastion host forms a bridge between your device and the network you want to connect to.
Your business likely has some form of a private network (or virtual network), which is a combination of all your:Ī bastion host is a special computer that plays the role of a gatekeeper between a device and your private network.
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