Currently, by default, new Bastion deployments don't support zone redundancies. Previously deployed bastions may or may not be zone-redundant. The exceptions are Bastion deployments in Korea Central and Southeast Asia, which do support zone redundancies.
Bastion Released For Mac!
By default, Azure Bastion is automatically enabled to allow copy and paste for all sessions connected through the bastion resource. You don't need to configure anything additional. This applies to both the Basic and the Standard SKU tier. If you want to disable this feature, you can disable it for web-based clients on the configuration page of your Bastion resource.
To connect to a private Amazon RDS or Amazon Aurora DB instance, it's a best practice to use a VPN or AWS Direct Connect. If you cannot use either a VPN or AWS Direct Connect, then the preferred option is to use a bastion host. You can also use this method to connect to Aurora Serverless and RDS Proxy from outside the VPC. This example shows you how to set up a bastion host to connect to your RDS DB instance from a Linux/macOS machine, even though the RDS DB instance is private.
A couple of optional steps can increase the efficiency of your access from the bastion host to the SQL server. Keep in mind though that automating access all the time is not a secure strategy. It is wise to always log in whenever you want to open an SSH tunnel to keep sessions completely private.
Only around half of developers enforce port forwarding prevention procedures. Port forwarding can leave you open to encrypted communications with unapproved users and servers. Thus, hackers can walk right into your database. Filter all of your connections through the bastion server and consider using port knocking before allowing a connection.
While virtual reality focuses on bringing the user into an all-encompassing digital world, augmented reality instead looks at allowing users to continue to view the real world while having a screen overlayed on top of it. The technology has been around for a while, perhaps most notably reaching consumers with Google Glass, which released in limited quantities years ago.
Sometimes, when you work with a Sitecore development/production environment scenario for a client, you may find they go through great lengths to ensure that individuals allowed to access their environment are properly authenticated. One such example involves using a bastion server.
For those not familiar with what a bastion server is, from Wikipedia, a bastion host is a special-purpose computer on a network specifically designed and configured to withstand attacks. The computer generally hosts a single application, for example a proxy server, and all other services are removed or limited to reduce the threat to the computer. An image of how a bastion server can be used to insulate access to a series of systems on a private network is shown below. In the case where I had this situation, I had to successfully connect to a bastion server and only after that, I was able to access development and production servers as well as the virtual machine I was using to perform development activities.
With the same terminal connection, you can define the needed tunnel entries to create connections to the servers or virtual machines you require access to beyond the bastion server. An image of where to do this is shown below.
This section will discuss how to actually authenticate with the bastion server which makes those tunnels available. It can be as simple as providing a username and password or a private key file may be used.
For those new to the process, it may not be clear how to create the public and private key files you may need to complete authentication with a bastion server if that is required. My application of choice is PuTTyGen (not to be confused with just PuTTy). A free application which can be used to generate both files. An image of the application is shown below.
Before beginning, make sure you know which type of key and how many bits should be used to generate the public and private key files. You would simply click the Generate button and that would begin the process. For some reason you have to move your mouse back and forth a bit to ensure a unique key as the process is performed. From my experience, you would load the public key on a system which tracks who is allowed to access the bastion server. Then the private key file is used to authenticate with the bastion server from your local device you are using to connect which should have enough information about the public key to complete the authentication process. You would provide information about where to find this file on our local device as described in an earlier section in this blog concerning the authentication set-up for the bastion server.
Royal TS can be used to remote desktop into the virtual machine, development or production servers made accessible by authenticating with the bastion server. An image of that type of connection is shown below.
The previous answers mention how to use the ProxyJump directive (added in OpenSSH 7.3) to connect through an intermediate server (usually referred to as the bastion host), but mention it just as a command line argument.
The beauty of ssh is that you can configure each destination on the file, and they will stack very nicely. Thus you end up working with office-machine as the hostname on all the tools (ssh, scp, sftp...) as they were direct connects, and they will figure out how to connect based in the ssh_config. You could also have wildcards like Host *.internal.company.local to make all hosts ending like that going through a specific bastion, and it will apply to all of them. Once configured correctly, the only difference between doing one hop connections or twenty would be the slower connection times. 2ff7e9595c
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