Teleport FAQ

Can I use Teleport in production today?

Teleport has been deployed on server clusters with thousands of hosts at Fortune 500 companies. It has been through several security audits from nationally recognized technology security companies, so we are comfortable with the stability of Teleport from a security perspective.

Can Teleport be deployed in agentless mode?

Yes. All Teleport services support agentless mode, where the service proxies traffic to an upstream infrastructure resource not available on localhost.

With Teleport in agentless mode, you can easily control access to SSH servers, Kubernetes clusters, desktops, databases, and internal applications without running any additional software on your servers. Agentless mode supports session recordings and audit logs for deep understanding into user behavior.

For capabilities such as kernel-level logging and user provisioning, we recommend Teleport as a drop in replacement for OpenSSH. Since Teleport replaces the OpenSSH agent while preserving OpenSSH's functionality, you get more functionality without a net addition of an agent on your system.

Can I use OpenSSH with a Teleport cluster?

Yes, this question comes up often and is related to the previous one. Take a look at Using OpenSSH Guide.

Can I connect to Nodes behind a firewall?

Yes, Teleport supports reverse SSH tunnels out of the box. To configure behind-firewall clusters refer to our Trusted Clusters guide.

Should we use Enterprise or Open Source Teleport for connecting resources to our Teleport cluster?

Teleport Team, Enterprise, and Enterprise Cloud customers should use the Enterprise release of the teleport binary for agents. Running the Community Edition binary could result in incompatibility to these cluster editions for certain features.

To verify you have a Teleport Enterprise release installed run the teleport version command and Enterprise will be in the output.

teleport version
Teleport Enterprise v14.0.1 go1.21

Teleport Community Edition clusters should use the Teleport Community Edition releases. The teleport version command will only include Teleport in its output for those releases.

teleport version
Teleport v14.0.1 go1.21

See the Installation guide for details on installing to specific platforms with Enterprise or OSS releases.

Can individual agents create reverse tunnels to the Proxy Service without creating a new cluster?

Yes. When running a Teleport agent, use the --auth-server flag to point to the Proxy Service address (this would be public_addr and web_listen_addr in your file configuration). For more information, see Adding Nodes to the Cluster.

Can Nodes use a single port for reverse tunnels?

Yes, Teleport supports tunnel multiplexing on a single port. Set the tunnel_listen_addr to use the same port as the web_listen_addr address setting in the proxy_service configuration. Teleport will automatically use multiplexing with that configuration.

Can I copy files from one Teleport node to another?

Yes, Teleport supports Headless WebAuthn authentication, which allows you to perform operations like tsh ssh or tsh scp from remote systems where you are not logged in to Teleport or may not have access to a browser.

I'm getting ssh: subsystem request failed while I try to copy files, what to do?

Make sure that all Teleport components are at least at version 10.3.0. Older versions don't support the SFTP protocol, and it's enabled by default in tsh v11.0.0 and OpenSSH v9.0.

tsh is very slow on Windows, what to do?

If your host machine is joined to an Active Directory domain, you might find user lookups take a lot longer than you expect. The number of Active Directory accounts that must be scanned to perform a user lookup can cause tsh to hang waiting to get information about the current user. To fix this issue, you can use environment variables to set default account information for your Teleport user. If you are experiencing long lookup times on Windows, do the following:

• Make sure tsh is at least at version 12.2.4.
• Either set the TELEPORT_USER environment variable or set the --user flag to the name of your Teleport user.
• Either set the TELEPORT_LOGIN environment variable or set the --login flag to the name of current host user. This setting can be overridden if you open a new SSH session on a machine as a different user.
• Set the TELEPORT_HOME environment variable to be the home directory of your current host user + \.tsh. For example, if your home directory is C:\Users\Me, you'd set TELEPORT_HOME to C:\Users\Me\.tsh.

You can set these environment variables globally in Windows so that you don't have to set them every time you run tsh.

How is Open Source different from Enterprise?

Teleport provides four editions:

• Teleport Team
• Teleport Enterprise
• Teleport Enterprise Cloud
• Teleport Community Edition

Here is a detailed breakdown of the differences between Teleport's editions.

Access controls

Infrastructure access

Audit logging and session recording

Compliance

Operations

Support

Licensing and usage management

Which version of Teleport is supported?

Teleport releases a new major version approximately every 4 months, and provides security-critical support for the current and two previous major versions. With our typical release cadence, we usually support each major version for 12 months.

Supported versions

Here are the major versions of Teleport and their support windows:

Version compatibility

When running multiple teleport binaries within a cluster, the following rules apply:

• Patch and minor versions are always compatible, for example, any 8.0.1 component will work with any 8.0.3 component and any 8.1.0 component will work with any 8.3.0 component.
• Servers support clients that are 1 major version behind, but do not support clients that are on a newer major version. For example, an 8.x.x Proxy Service is compatible with 7.x.x resource services and 7.x.x tsh, but we don't guarantee that a 9.x.x resource service will work with an 8.x.x Proxy Service. This also means you must not attempt to upgrade from 6.x.x straight to 8.x.x. You must upgrade to 7.x.x first.
• Proxy Services and resource services do not support Auth Services that are on an older major version, and will fail to connect to older Auth Services by default. This behavior can be overridden by passing --skip-version-check when starting Proxy Services and resource services.

Does the Web UI support copy and paste?

Yes. You can copy and paste using a mouse.

What TCP ports does Teleport use?

Please refer to our Networking guide.

Does Teleport support authentication via OIDC, SAML, or Active Directory?

Teleport offers this feature for the Enterprise Cloud and Enterprise versions of Teleport.

Why do I see an alert that some agents are out of date?

Teleport monitors the inventory of all cluster components and compares their Teleport versions with the latest release on our GitHub page. If a component is not on the latest release, Teleport will create a cluster alert encouraging users to upgrade.

This check is performed against all cluster components, including the Proxy Service and Auth Service, as well as agents running other Teleport Services.

What is the minimum TLS version that Teleport requires?

Teleport requires a minimum of TLS version 1.2.

This means that when applications and clients establish or accept TLS connections with Teleport processes, they must use TLS 1.2 or a higher protocol version. Teleport enforces this requirement in all operations that involve TLS connections.

Can I suppress warnings about available upgrades?

Yes. The tctl alerts ack command can be used to acknowledge an alert and temporarily prevent it from being displayed to users. To acknowledge an alert, you need its ID. You can get a listing of all alerts and their IDs with the tctl alerts list command.

For detailed information on this family of commands, see the CLI Reference.

Does Teleport send any data back to the cloud?

The open source edition of Teleport does not send any information to our company, and can be used on servers without internet access.

The commercial editions of Teleport can optionally be configured to send anonymized information, depending on the license purchased. This information contains the following:

• Teleport license identifier;
• anonymized cluster name and Teleport auth server host ID;
• for each Teleport user, the anonymized user name and a per-protocol count of interactions - Teleport logins, SSH and Kubernetes exec sessions, Application access web sessions and TCP connections, SSH port forwards, Kubernetes API requests, SFTP actions.

The anonymization is done by passing names and IDs through HMAC-SHA-256, with a HMAC key that's randomly generated when the Teleport cluster is initialized for the first time and is never shared with us; this makes it infeasible for anyone without access to the cluster to deanonymize the data we store.

The code that aggregates and anonymizes this data can be found in our repository on GitHub.

Reach out to [email protected] if you have questions about the commercial editions of Teleport.

Teleport Connect

When you first start the app, Teleport Connect asks for permission to collect and send telemetry data. This includes tracking events such as:

• Logging in to a cluster
• Starting an SSH, database, or Kubernetes session
• File transfer during an SSH session
• Creating an Access Request
• Reviewing an Access Request
• Assuming an Access Request

On login, we also collect some device-related data:

• Operating system and its version
• App version
• Processor architecture

Additionally, we ask for a job role (answer is optional).

The full list of events and collected data is defined as protocol buffer messages in the Teleport source. We do not track the details of those events but merely that the given event took place. Each event includes the cluster name and user name anonymized with HMAC using the cluster's internal random UUID as the key. It is infeasible to associate this back to a specific cluster or user without access to the cluster's internal datastore.

If you no longer want to send usage data, see disabling telemetry.