teleport

README

Read our Blog: https://goteleport.com/blog/

Read our Documentation: https://goteleport.com/docs/getting-started/

Table of Contents

1. Introduction
2. Installing and Running
3. Docker
4. Building Teleport
5. Why Did We Build Teleport?
6. More Information
7. Support and Contributing
8. Is Teleport Secure and Production Ready?
9. Who Built Teleport?

Introduction

Teleport is the easiest, most secure way to access all your infrastructure. Teleport is an identity-aware, multi-protocol access proxy which understands SSH, HTTPS, RDP, Kubernetes API, MySQL, MongoDB and PostgreSQL wire protocols.

On the server-side, Teleport is a single binary which enables convenient secure access to behind-NAT resources such as:

• SSH nodes - SSH works in browsers too!
• Kubernetes clusters
• PostgreSQL, MongoDB, CockroachDB and MySQL databases
• Internal Web apps
• Windows Hosts
• Networked servers

Teleport is trivial to set up as a Linux daemon or in a Kubernetes pod. It's rapidly replacing legacy sshd-based setups at organizations who need:

• Developer convenience of having instant secure access to everything they need across many environments and cloud providers.
• Audit log with session recording/replay for multiple protocols
• Easily manage trust between teams, organizations and data centers.
• Role-based access control (RBAC) and flexible access workflows (one-time access requests)

In addition to its hallmark features, Teleport is interesting for smaller teams because it facilitates easy adoption of the best infrastructure security practices like:

• No need to manage shared secrets such as SSH keys: Teleport uses certificate-based access with automatic certificate expiration time for all protocols.
• Two-factor authentication (2FA) for everything.
• Collaboratively troubleshoot issues through session sharing.
• Single sign-on (SSO) for everything via Github Auth, OpenID Connect, or SAML with endpoints like Okta or Active Directory.
• Infrastructure introspection: Use Teleport via the CLI or Web UI to view the status of every SSH node, database instance, Kubernetes cluster, or internal web app.

Teleport is built upon the high-quality Golang SSH implementation. It is fully compatible with OpenSSH, sshd servers, and ssh clients.

Project Links	Description
Teleport Website	The official website of the project.
Documentation	Admin guide, user manual and more.
Demo Video	3-minute video overview of Teleport.
Blog	Our blog where we publish Teleport news.
Forum	Ask us a setup question, post your tutorial, feedback, or idea on our forum.
Slack	Need help with your setup? Ping us in our Slack channel.
Cloud-hosted	We offer Enterprise with a Cloud-hosted option. For teams that require easy and secure access to their computing environments.

Installing and Running

| Follow the Installation Guide

Download the latest binary release, unpack the .tar.gz and run sudo ./install. This will copy Teleport binaries into /usr/local/bin.

Then you can run Teleport as a single-node cluster:

sudo teleport start

In a production environment, Teleport must run as root. For testing or non-production environments, run it as the $USER:

chown $USER /var/lib/teleport

• In this case, you will not be able to log in as another user.

Docker

| Follow the Docker-Compose Getting Started Guide

Deploy Teleport

If you wish to deploy Teleport inside a Docker container:

# This command will pull the Teleport container image for version 8
docker pull public.ecr.aws/gravitational/teleport:8

View latest tags on Amazon ECR Public | gravitational/teleport

For Local Testing and Development

Follow the instructions in the docker/README file.

To run a full test suite locally, see the test dependencies list

Building Teleport

The teleport repository contains the Teleport daemon binary (written in Go) and a web UI written in Javascript (a git submodule located in the webassets/ directory).

If your intention is to build and deploy for use in a production infrastructure a released tag should be used. The default branch, master, is the current development branch for an upcoming major version. Get the latest release tags listed at https://goteleport.com/download/ and then use that tag in the git clone. For example git clone https://github.com/gravitational/teleport.git -b v9.1.2 gets release v9.1.2.

Dockerized Build

It is often easiest to build with Docker, which ensures that all required tooling is available for the build. To execute a dockerized build, ensure that docker is installed and running, and execute:

make -C build.assets build-binaries

Local Build

Dependencies

Ensure you have installed correct versions of necessary dependencies:

• Go version from go.mod
• If you wish to build the Rust-powered features like Desktop Access, see the Rust and Cargo version in build.assets/Makefile (search for RUST_VERSION)
• For tsh version > 10.x with FIDO support, you will need libfido and openssl 1.1 installed locally

For an example of Dev Environment setup on a Mac, see these instructions.

Perform a build

Important

• The Go compiler is somewhat sensitive to the amount of memory: you will need at least 1GB of virtual memory to compile Teleport. A 512MB instance without swap will not work.
• This will build the latest version of Teleport, regardless of whether it is stable. If you want to build the latest stable release, run git checkout and git submodule update --recursive to the corresponding tag (for example,
• run git checkout v8.0.0) before performing a build.

Get the source

git clone https://github.com/gravitational/teleport.git
cd teleport

To perform a build

make full

To build tsh with Apple TouchID support enabled:

Important

tsh binaries with Touch ID support are only functional using binaries signed with Teleport's Apple Developer ID and notarized by Apple. If you are a Teleport maintainer, ask the team for access.

make build/tsh TOUCHID=yes

To build tsh with libfido:

make build/tsh FIDO2=dynamic

• On a Mac, with libfido and openssl 1.1 installed via homebrew

  export PKG_CONFIG_PATH="$(brew --prefix openssl@1.1)/lib/pkgconfig"
  make build/tsh FIDO2=dynamic
  

Build output and running locally

If the build succeeds, the installer will place the binaries in the build directory.

Before starting, create default data directories:

sudo mkdir -p -m0700 /var/lib/teleport
sudo chown $USER /var/lib/teleport

Web UI

The Teleport Web UI resides in the Gravitational Webapps repo.

Rebuilding Web UI for development

To clone this repository and rebuild the Teleport UI package, run the following commands:

git clone git@github.com:gravitational/webapps.git
cd webapps
make build-teleport

Then you can replace Teleport Web UI files with the files from the newly-generated /dist folder.

To enable speedy iterations on the Web UI, you can run a local web-dev server.

You can also tell Teleport to load the Web UI assets from the source directory. To enable this behavior, set the environment variable DEBUG=1 and rebuild with the default target:

# Run Teleport as a single-node cluster in development mode:
DEBUG=1 ./build/teleport start -d

Keep the server running in this mode, and make your UI changes in /dist directory. For instructions about how to update the Web UI, read the webapps README file.

Updating Web UI assets

After you commit a change to the webapps repo, you need to update the Web UI assets in the webassets/ git submodule.

Run make update-webassets to update the webassets repo and create a PR for teleport to update its git submodule.

You will need to have the gh utility installed on your system for the script to work. For installation instructions, read the GitHub CLI installation documentation.

Managing dependencies

All dependencies are managed using Go modules. Here are the instructions for some common tasks:

Add a new dependency

Latest version:

go get github.com/new/dependency

and update the source to use this dependency.

To get a specific version, use go get github.com/new/dependency@version instead.

Set dependency to a specific version

go get github.com/new/dependency@version

Update dependency to the latest version

go get -u github.com/new/dependency

Update all dependencies

go get -u all

Debugging dependencies

Why is a specific package imported?

go mod why $pkgname

Why is a specific module imported?

go mod why -m $modname

Why is a specific version of a module imported?

go mod graph | grep $modname

Why did We Build Teleport?

The Teleport creators used to work together at Rackspace. We noticed that most cloud computing users struggle with setting up and configuring infrastructure security because popular tools, while flexible, are complex to understand and expensive to maintain. Additionally, most organizations use multiple infrastructure form factors such as several cloud providers, multiple cloud accounts, servers in colocation, and even smart devices. Some of those devices run on untrusted networks, behind third-party firewalls. This only magnifies complexity and increases operational overhead.

We had a choice, either start a security consulting business or build a solution that's dead-easy to use and understand. A real-time representation of all of your servers in the same room as you, as if they were magically teleported. Thus, Teleport was born!

More Information

• Teleport Getting Started
• Teleport Architecture
• Reference
• FAQ

Support and Contributing

We offer a few different options for support. First of all, we try to provide clear and comprehensive documentation. The docs are also in Github, so feel free to create a PR or file an issue if you have ideas for improvements. If you still have questions after reviewing our docs, you can also:

• Join Teleport Discussions to ask questions. Our engineers are available there to help you.
• If you want to contribute to Teleport or file a bug report/issue, you can create an issue here in Github.
• If you are interested in Teleport Enterprise or more responsive support during a POC, we can also create a dedicated Slack channel for you during your POC. You can reach out to us through our website to arrange for a POC.

Is Teleport Secure and Production Ready?

Teleport is used by leading companies to enable engineers to quickly access any computing resource anywhere. Teleport has completed several security audits from the nationally recognized technology security companies. We make some of our audits public, view our latest audit reports. We are comfortable with the use of Teleport from a security perspective.

You can see the list of companies who use Teleport in production on the Teleport product page.

You can find the latest stable Teleport build on our Releases page.

Who Built Teleport?

Teleport was created by Gravitational Inc. We have built Teleport by borrowing from our previous experiences at Rackspace. Learn more about Teleport and our history.

Documentation

Overview

Gravitational Teleport is a modern SSH server for remotely accessing clusters of Linux servers via SSH or HTTPS. It is intended to be used instead of sshd.

Teleport enables teams to easily adopt the best SSH practices like:

• No need to distribute keys: Teleport uses certificate-based access with automatic expiration time.
• Enforcement of 2nd factor authentication.
• Cluster introspection: every Teleport node becomes a part of a cluster and is visible on the Web UI.
• Record and replay SSH sessions for knowledge sharing and auditing purposes.
• Collaboratively troubleshoot issues through session sharing.
• Connect to clusters located behind firewalls without direct Internet access via SSH bastions.
• Ability to integrate SSH credentials with your organization identities via OAuth (Google Apps, Github).
• Keep the full audit log of all SSH sessions within a cluster.

Teleport web site:

https://gravitational.com/teleport/

Teleport on Github:

https://github.com/gravitational/teleport

Index

• Constants
• Variables
• func Component(components ...string) string
• func NewWebAssetsFilesystem() (http.FileSystem, error)
• type Principal

Constants

const (
	// SSHAuthSock is the environment variable pointing to the
	// Unix socket the SSH agent is running on.
	SSHAuthSock = "SSH_AUTH_SOCK"
	// SSHAgentPID is the environment variable pointing to the agent
	// process ID
	SSHAgentPID = "SSH_AGENT_PID"

	// SSHTeleportUser is the current Teleport user that is logged in.
	SSHTeleportUser = "SSH_TELEPORT_USER"

	// SSHSessionWebproxyAddr is the address the web proxy.
	SSHSessionWebproxyAddr = "SSH_SESSION_WEBPROXY_ADDR"

	// SSHTeleportClusterName is the name of the cluster this node belongs to.
	SSHTeleportClusterName = "SSH_TELEPORT_CLUSTER_NAME"

	// SSHTeleportHostUUID is the UUID of the host.
	SSHTeleportHostUUID = "SSH_TELEPORT_HOST_UUID"

	// SSHSessionID is the UUID of the current session.
	SSHSessionID = "SSH_SESSION_ID"
)

const (
	// TOTPValidityPeriod is the number of seconds a TOTP token is valid.
	TOTPValidityPeriod uint = 30

	// TOTPSkew adds that many periods before and after to the validity window.
	TOTPSkew uint = 1
)

const (
	// ComponentMemory is a memory backend
	ComponentMemory = "memory"

	// ComponentAuthority is a TLS and an SSH certificate authority
	ComponentAuthority = "ca"

	// ComponentProcess is a main control process
	ComponentProcess = "proc"

	// ComponentServer is a server subcomponent of some services
	ComponentServer = "server"

	// ComponentACME is ACME protocol controller
	ComponentACME = "acme"

	// ComponentReverseTunnelServer is reverse tunnel server
	// that together with agent establish a bi-directional SSH revers tunnel
	// to bypass firewall restrictions
	ComponentReverseTunnelServer = "proxy:server"

	// ComponentReverseTunnelAgent is reverse tunnel agent
	// that together with server establish a bi-directional SSH revers tunnel
	// to bypass firewall restrictions
	ComponentReverseTunnelAgent = "proxy:agent"

	// ComponentLabel is a component label name used in reporting
	ComponentLabel = "component"

	// ComponentProxyKube is a kubernetes proxy
	ComponentProxyKube = "proxy:kube"

	// ComponentAuth is the cluster CA node (auth server API)
	ComponentAuth = "auth"

	// ComponentGRPC is grpc server
	ComponentGRPC = "grpc"

	// ComponentMigrate is responsible for data migrations
	ComponentMigrate = "migrate"

	// ComponentNode is SSH node (SSH server serving requests)
	ComponentNode = "node"

	// ComponentForwardingNode is SSH node (SSH server serving requests)
	ComponentForwardingNode = "node:forward"

	// ComponentProxy is SSH proxy (SSH server forwarding connections)
	ComponentProxy = "proxy"

	// ComponentProxyPeer is the proxy peering component of the proxy service
	ComponentProxyPeer = "proxy:peer"

	// ComponentApp is the application proxy service.
	ComponentApp = "app:service"

	// ComponentDatabase is the database proxy service.
	ComponentDatabase = "db:service"

	// ComponentDiscovery is the Discovery service.
	ComponentDiscovery = "discovery:service"

	// ComponentAppProxy is the application handler within the web proxy service.
	ComponentAppProxy = "app:web"

	// ComponentWebProxy is the web handler within the web proxy service.
	ComponentWebProxy = "web"

	// ComponentDiagnostic is a diagnostic service
	ComponentDiagnostic = "diag"

	// ComponentClient is a client
	ComponentClient = "client"

	// ComponentTunClient is a tunnel client
	ComponentTunClient = "client:tunnel"

	// ComponentCache is a cache component
	ComponentCache = "cache"

	// ComponentBackend is a backend component
	ComponentBackend = "backend"

	// ComponentSubsystemProxy is the proxy subsystem.
	ComponentSubsystemProxy = "subsystem:proxy"

	// ComponentSubsystemSFTP is the SFTP subsystem.
	ComponentSubsystemSFTP = "subsystem:sftp"

	// ComponentLocalTerm is a terminal on a regular SSH node.
	ComponentLocalTerm = "term:local"

	// ComponentRemoteTerm is a terminal on a forwarding SSH node.
	ComponentRemoteTerm = "term:remote"

	// ComponentRemoteSubsystem is subsystem on a forwarding SSH node.
	ComponentRemoteSubsystem = "subsystem:remote"

	// ComponentAuditLog is audit log component
	ComponentAuditLog = "audit"

	// ComponentKeyAgent is an agent that has loaded the sessions keys and
	// certificates for a user connected to a proxy.
	ComponentKeyAgent = "keyagent"

	// ComponentKeyStore is all sessions keys and certificates a user has on disk
	// for all proxies.
	ComponentKeyStore = "keystore"

	// ComponentConnectProxy is the HTTP CONNECT proxy used to tunnel connection.
	ComponentConnectProxy = "http:proxy"

	// ComponentSOCKS is a SOCKS5 proxy.
	ComponentSOCKS = "socks"

	// ComponentKeyGen is the public/private keypair generator.
	ComponentKeyGen = "keygen"

	// ComponentFirestore represents firestore clients
	ComponentFirestore = "firestore"

	// ComponentSession is an active session.
	ComponentSession = "session"

	// ComponentDynamoDB represents dynamodb clients
	ComponentDynamoDB = "dynamodb"

	// Component pluggable authentication module (PAM)
	ComponentPAM = "pam"

	// ComponentUpload is a session recording upload server
	ComponentUpload = "upload"

	// ComponentWeb is a web server
	ComponentWeb = "web"

	// ComponentWebsocket is websocket server that the web client connects to.
	ComponentWebsocket = "websocket"

	// ComponentRBAC is role-based access control.
	ComponentRBAC = "rbac"

	// ComponentKeepAlive is keep-alive messages sent from clients to servers
	// and vice versa.
	ComponentKeepAlive = "keepalive"

	// ComponentTeleport is the "teleport" binary.
	ComponentTeleport = "teleport"

	// ComponentTSH is the "tsh" binary.
	ComponentTSH = "tsh"

	// ComponentTBot is the "tbot" binary
	ComponentTBot = "tbot"

	// ComponentKubeClient is the Kubernetes client.
	ComponentKubeClient = "client:kube"

	// ComponentBuffer is in-memory event circular buffer
	// used to broadcast events to subscribers.
	ComponentBuffer = "buffer"

	// ComponentBPF is the eBPF packagae.
	ComponentBPF = "bpf"

	// ComponentRestrictedSession is restriction of user access to kernel objects
	ComponentRestrictedSession = "restrictedsess"

	// ComponentCgroup is the cgroup package.
	ComponentCgroup = "cgroups"

	// ComponentKube is an Kubernetes API gateway.
	ComponentKube = "kubernetes"

	// ComponentSAML is a SAML service provider.
	ComponentSAML = "saml"

	// ComponentMetrics is a metrics server
	ComponentMetrics = "metrics"

	// ComponentWindowsDesktop is a Windows desktop access server.
	ComponentWindowsDesktop = "windows_desktop"

	// ComponentTracing is a tracing exporter
	ComponentTracing = "tracing"

	// ComponentInstance is an abstract component common to all services.
	ComponentInstance = "instance"

	// ComponentVersionControl is the component common to all version control operations.
	ComponentVersionControl = "version-control"

	// DebugEnvVar tells tests to use verbose debug output
	DebugEnvVar = "DEBUG"

	// DebugAssetsPath allows users to set the path of the webassets if debug
	// mode is enabled.
	// For example,
	// `DEBUG=1 DEBUG_ASSETS_PATH=/path/to/webassets/ teleport start`.
	DebugAssetsPath = "DEBUG_ASSETS_PATH"

	// VerboseLogEnvVar forces all logs to be verbose (down to DEBUG level)
	VerboseLogsEnvVar = "TELEPORT_DEBUG"

	// IterationsEnvVar sets tests iterations to run
	IterationsEnvVar = "ITERATIONS"

	// DefaultTerminalWidth defines the default width of a server-side allocated
	// pseudo TTY
	DefaultTerminalWidth = 80

	// DefaultTerminalHeight defines the default height of a server-side allocated
	// pseudo TTY
	DefaultTerminalHeight = 25

	// SafeTerminalType is the fall-back TTY type to fall back to (when $TERM
	// is not defined)
	SafeTerminalType = "xterm"

	// DataDirParameterName is the name of the data dir configuration parameter passed
	// to all backends during initialization
	DataDirParameterName = "data_dir"

	// KeepAliveReqType is a SSH request type to keep the connection alive. A client and
	// a server keep pining each other with it.
	KeepAliveReqType = "keepalive@openssh.com"

	// RecordingProxyReqType is the name of a global request which returns if
	// the proxy is recording sessions or not.
	//
	// DEPRECATED: ClusterDetailsReqType should be used instead to avoid multiple round trips for
	// cluster information.
	// TODO(tross):DELETE IN 12.0
	RecordingProxyReqType = "recording-proxy@teleport.com"

	// ClusterDetailsReqType is the name of a global request which returns cluster details like
	// if the proxy is recording sessions or not and if FIPS is enabled.
	ClusterDetailsReqType = "cluster-details@goteleport.com"

	// JSON means JSON serialization format
	JSON = "json"

	// YAML means YAML serialization format
	YAML = "yaml"

	// Text means text serialization format
	Text = "text"

	// PTY is a raw pty session capture format
	PTY = "pty"

	// Names is for formatting node names in plain text
	Names = "names"

	// LinuxAdminGID is the ID of the standard adm group on linux
	LinuxAdminGID = 4

	// DirMaskSharedGroup is the mask for a directory accessible
	// by the owner and group
	DirMaskSharedGroup = 0770

	// FileMaskOwnerOnly is the file mask that allows read write access
	// to owers only
	FileMaskOwnerOnly = 0600

	// On means mode is on
	On = "on"

	// Off means mode is off
	Off = "off"

	// SchemeS3 is S3 file scheme, means upload or download to S3 like object
	// storage
	SchemeS3 = "s3"

	// SchemeGCS is GCS file scheme, means upload or download to GCS like object
	// storage
	SchemeGCS = "gs"

	// GCSTestURI turns on GCS tests
	GCSTestURI = "TEST_GCS_URI"

	// AWSRunTests turns on tests executed against AWS directly
	AWSRunTests = "TEST_AWS"

	// Region is AWS region parameter
	Region = "region"

	// Endpoint is an optional Host for non-AWS S3
	Endpoint = "endpoint"

	// Insecure is an optional switch to use HTTP instead of HTTPS
	Insecure = "insecure"

	// DisableServerSideEncryption is an optional switch to opt out of SSE in case the provider does not support it
	DisableServerSideEncryption = "disablesse"

	// ACL is the canned ACL to send to S3
	ACL = "acl"

	// SSEKMSKey is an optional switch to use an KMS CMK key for S3 SSE.
	SSEKMSKey = "sse_kms_key"

	// SchemeFile is a local disk file storage
	SchemeFile = "file"

	// SchemeStdout outputs audit log entries to stdout
	SchemeStdout = "stdout"

	// LogsDir is a log subdirectory for events and logs
	LogsDir = "log"

	// Syslog is a mode for syslog logging
	Syslog = "syslog"

	// HumanDateFormat is a human readable date formatting
	HumanDateFormat = "Jan _2 15:04 UTC"

	// HumanDateFormatMilli is a human readable date formatting with milliseconds
	HumanDateFormatMilli = "Jan _2 15:04:05.000 UTC"

	// DebugLevel is a debug logging level name
	DebugLevel = "debug"

	// MinimumEtcdVersion is the minimum version of etcd supported by Teleport
	MinimumEtcdVersion = "3.3.0"
)

const (

	// OIDCPromptSelectAccount instructs the Authorization Server to
	// prompt the End-User to select a user account.
	OIDCPromptSelectAccount = "select_account"

	// OIDCAccessTypeOnline indicates that OIDC flow should be performed
	// with Authorization server and user connected online
	OIDCAccessTypeOnline = "online"
)

const (
	// AuthorizedKeys are public keys that check against User CAs.
	AuthorizedKeys = "authorized_keys"
	// KnownHosts are public keys that check against Host CAs.
	KnownHosts = "known_hosts"
)

const (
	// CertExtensionPermitX11Forwarding allows X11 forwarding for certificate
	CertExtensionPermitX11Forwarding = "permit-X11-forwarding"
	// CertExtensionPermitAgentForwarding allows agent forwarding for certificate
	CertExtensionPermitAgentForwarding = "permit-agent-forwarding"
	// CertExtensionPermitPTY allows user to request PTY
	CertExtensionPermitPTY = "permit-pty"
	// CertExtensionPermitPortForwarding allows user to request port forwarding
	CertExtensionPermitPortForwarding = "permit-port-forwarding"
	// CertExtensionTeleportRoles is used to propagate teleport roles
	CertExtensionTeleportRoles = "teleport-roles"
	// CertExtensionTeleportRouteToCluster is used to encode
	// the target cluster to route to in the certificate
	CertExtensionTeleportRouteToCluster = "teleport-route-to-cluster"
	// CertExtensionTeleportTraits is used to propagate traits about the user.
	CertExtensionTeleportTraits = "teleport-traits"
	// CertExtensionTeleportActiveRequests is used to track which privilege
	// escalation requests were used to construct the certificate.
	CertExtensionTeleportActiveRequests = "teleport-active-requests"
	// CertExtensionMFAVerified is used to mark certificates issued after an MFA
	// check.
	CertExtensionMFAVerified = "mfa-verified"
	// CertExtensionClientIP is used to embed the IP of the client that created
	// the certificate.
	CertExtensionClientIP = "client-ip"
	// CertExtensionImpersonator is set when one user has requested certificates
	// for another user
	CertExtensionImpersonator = "impersonator"
	// CertExtensionDisallowReissue is set when a certificate should not be allowed
	// to request future certificates.
	CertExtensionDisallowReissue = "disallow-reissue"
	// CertExtensionRenewable is a flag to indicate the certificate may be
	// renewed.
	CertExtensionRenewable = "renewable"
	// CertExtensionGeneration counts the number of times a certificate has
	// been renewed.
	CertExtensionGeneration = "generation"
	// CertExtensionAllowedResources lists the resources which this certificate
	// should be allowed to access
	CertExtensionAllowedResources = "teleport-allowed-resources"
	// CertExtensionConnectionDiagnosticID contains the ID of the ConnectionDiagnostic.
	// The Node/Agent will append connection traces to this diagnostic instance.
	CertExtensionConnectionDiagnosticID = "teleport-connection-diagnostic-id"
	// CertExtensionPrivateKeyPolicy is used to mark certificates with their supported
	// private key policy.
	CertExtensionPrivateKeyPolicy = "private-key-policy"
)

const (
	// NetIQ is an identity provider.
	NetIQ = "netiq"
	// ADFS is Microsoft Active Directory Federation Services
	ADFS = "adfs"
	// Ping is the common backend for all Ping Identity-branded identity
	// providers (including PingOne, PingFederate, etc).
	Ping = "ping"
	// Okta should be used for Okta OIDC providers.
	Okta = "okta"
	// JumpCloud is an identity provider.
	JumpCloud = "jumpcloud"
)

Note: when adding new providers to this list, consider updating the help message for --provider flag for `tctl sso configure oidc` and `tctl sso configure saml` commands as well as docs at https://goteleport.com/docs/enterprise/sso/#provider-specific-workarounds

const (
	// RemoteCommandSuccess is returned when a command has successfully executed.
	RemoteCommandSuccess = 0
	// RemoteCommandFailure is returned when a command has failed to execute and
	// we don't have another status code for it.
	RemoteCommandFailure = 255
	// HomeDirNotFound is returned when a the "teleport checkhomedir" command cannot
	// find the user's home directory.
	HomeDirNotFound = 254
)

const (
	// CertificateFormatOldSSH is used to make Teleport interoperate with older
	// versions of OpenSSH.
	CertificateFormatOldSSH = "oldssh"

	// CertificateFormatUnspecified is used to check if the format was specified
	// or not.
	CertificateFormatUnspecified = ""
)

const (
	// TraitInternalPrefix is the role variable prefix that indicates it's for
	// local accounts.
	TraitInternalPrefix = "internal"

	// TraitExternalPrefix is the role variable prefix that indicates the data comes from an external identity provider.
	TraitExternalPrefix = "external"

	// TraitTeams is the name of the role variable use to store team
	// membership information
	TraitTeams = "github_teams"

	// TraitJWT is the name of the trait containing JWT header for app access.
	TraitJWT = "jwt"

	// TraitInternalLoginsVariable is the variable used to store allowed
	// logins for local accounts.
	TraitInternalLoginsVariable = "{{internal.logins}}"

	// TraitInternalWindowsLoginsVariable is the variable used to store
	// allowed Windows Desktop logins for local accounts.
	TraitInternalWindowsLoginsVariable = "{{internal.windows_logins}}"

	// TraitInternalKubeGroupsVariable is the variable used to store allowed
	// kubernetes groups for local accounts.
	TraitInternalKubeGroupsVariable = "{{internal.kubernetes_groups}}"

	// TraitInternalKubeUsersVariable is the variable used to store allowed
	// kubernetes users for local accounts.
	TraitInternalKubeUsersVariable = "{{internal.kubernetes_users}}"

	// TraitInternalDBNamesVariable is the variable used to store allowed
	// database names for local accounts.
	TraitInternalDBNamesVariable = "{{internal.db_names}}"

	// TraitInternalDBUsersVariable is the variable used to store allowed
	// database users for local accounts.
	TraitInternalDBUsersVariable = "{{internal.db_users}}"

	// TraitInternalAWSRoleARNs is the variable used to store allowed AWS
	// role ARNs for local accounts.
	TraitInternalAWSRoleARNs = "{{internal.aws_role_arns}}"

	// TraitInternalJWTVariable is the variable used to store JWT token for
	// app sessions.
	TraitInternalJWTVariable = "{{internal.jwt}}"
)

const (
	// PresetEditorRoleName is a name of a preset role that allows
	// editing cluster configuration.
	PresetEditorRoleName = "editor"

	// PresetAccessRoleName is a name of a preset role that allows
	// accessing cluster resources.
	PresetAccessRoleName = "access"

	// PresetAuditorRoleName is a name of a preset role that allows
	// reading cluster events and playing back session records.
	PresetAuditorRoleName = "auditor"
)

const (
	// RemoteClusterStatusOffline indicates that cluster is considered as
	// offline, since it has missed a series of heartbeats
	RemoteClusterStatusOffline = "offline"
	// RemoteClusterStatusOnline indicates that cluster is sending heartbeats
	// at expected interval
	RemoteClusterStatusOnline = "online"
)

const (
	// SharedDirMode is a mode for a directory shared with group
	SharedDirMode = 0750

	// PrivateDirMode is a mode for private directories
	PrivateDirMode = 0700
)

const (
	// SessionEvent is sent by servers to clients when an audit event occurs on
	// the session.
	SessionEvent = "x-teleport-event"

	// VersionRequest is sent by clients to server requesting the Teleport
	// version they are running.
	VersionRequest = "x-teleport-version"

	// ForceTerminateRequest is an SSH request to forcefully terminate a session.
	ForceTerminateRequest = "x-teleport-force-terminate"

	// TerminalSizeRequest is a request for the terminal size of the session.
	TerminalSizeRequest = "x-teleport-terminal-size"

	// MFAPresenceRequest is an SSH request to notify clients that MFA presence is required for a session.
	MFAPresenceRequest = "x-teleport-mfa-presence"

	// EnvSSHJoinMode is the SSH environment variable that contains the requested participant mode.
	EnvSSHJoinMode = "TELEPORT_SSH_JOIN_MODE"

	// EnvSSHSessionReason is a reason attached to started sessions meant to describe their intent.
	EnvSSHSessionReason = "TELEPORT_SESSION_REASON"

	// EnvSSHSessionInvited is an environment variable listning people invited to a session.
	EnvSSHSessionInvited = "TELEPORT_SESSION_JOIN_MODE"

	// EnvSSHSessionDisplayParticipantRequirements is set to true or false to indicate if participant
	// requirement information should be printed.
	EnvSSHSessionDisplayParticipantRequirements = "TELEPORT_SESSION_PARTICIPANT_REQUIREMENTS"

	// SSHSessionJoinPrincipal is the SSH principal used when joining sessions.
	// This starts with a hyphen so it isn't a valid unix login.
	SSHSessionJoinPrincipal = "-teleport-internal-join"
)

const (
	// EnvKubeConfig is environment variable for kubeconfig
	EnvKubeConfig = "KUBECONFIG"

	// KubeConfigDir is a default directory where k8s stores its user local config
	KubeConfigDir = ".kube"

	// KubeConfigFile is a default filename where k8s stores its user local config
	KubeConfigFile = "config"

	// KubeRunTests turns on kubernetes tests
	KubeRunTests = "TEST_KUBE"

	// KubeSystemAuthenticated is a builtin group that allows
	// any user to access common API methods, e.g. discovery methods
	// required for initial client usage
	KubeSystemAuthenticated = "system:authenticated"

	// UsageKubeOnly specifies certificate usage metadata
	// that limits certificate to be only used for kubernetes proxying
	UsageKubeOnly = "usage:kube"

	// UsageAppOnly specifies a certificate metadata that only allows it to be
	// used for proxying applications.
	UsageAppsOnly = "usage:apps"

	// UsageDatabaseOnly specifies certificate usage metadata that only allows
	// it to be used for proxying database connections.
	UsageDatabaseOnly = "usage:db"

	// UsageWindowsDesktopOnly specifies certificate usage metadata that limits
	// certificate to be only used for Windows desktop access
	UsageWindowsDesktopOnly = "usage:windows_desktop"
)

const (
	// NodeIsAmbiguous serves as an identifying error string indicating that
	// the proxy subsystem found multiple nodes matching the specified hostname.
	NodeIsAmbiguous = "err-node-is-ambiguous"

	// MaxLeases serves as an identifying error string indicating that the
	// semaphore system is rejecting an acquisition attempt due to max
	// leases having already been reached.
	MaxLeases = "err-max-leases"
)

const (
	// OpenBrowserLinux is the command used to open a web browser on Linux.
	OpenBrowserLinux = "xdg-open"

	// OpenBrowserDarwin is the command used to open a web browser on macOS/Darwin.
	OpenBrowserDarwin = "open"

	// OpenBrowserWindows is the command used to open a web browser on Windows.
	OpenBrowserWindows = "rundll32.exe"

	// BrowserNone is the string used to suppress the opening of a browser in
	// response to 'tsh login' commands.
	BrowserNone = "none"
)

const (
	// ExecSubCommand is the sub-command Teleport uses to re-exec itself for
	// command execution (exec and shells).
	ExecSubCommand = "exec"

	// ForwardSubCommand is the sub-command Teleport uses to re-exec itself
	// for port forwarding.
	ForwardSubCommand = "forward"

	// CheckHomeDirSubCommand is the sub-command Teleport uses to re-exec itself
	// to check if the user's home directory exists.
	CheckHomeDirSubCommand = "checkhomedir"

	// ParkSubCommand is the sub-command Teleport uses to re-exec itself as a
	// specific UID to prevent the matching user from being deleted before
	// spawning the intended child process.
	ParkSubCommand = "park"

	// SFTPSubCommand is the sub-command Teleport uses to re-exec itself to
	// handle SFTP connections.
	SFTPSubCommand = "sftp"
)

const (
	// ChanDirectTCPIP is a SSH channel of type "direct-tcpip".
	ChanDirectTCPIP = "direct-tcpip"

	// ChanSession is a SSH channel of type "session".
	ChanSession = "session"
)

const (
	// internal application being proxied.
	AppJWTHeader = "teleport-jwt-assertion"

	// AppCFHeader is a compatibility header.
	AppCFHeader = "cf-access-token"

	// HostHeader is the name of the Host header.
	HostHeader = "Host"
)

const (
	// WebAPIConnUpgrade is the HTTP web API to make the connection upgrade
	// call.
	WebAPIConnUpgrade = "/webapi/connectionupgrade"
	// WebAPIConnUpgradeHeader is the header used to indicate the requested
	// connection upgrade types in the connection upgrade API.
	WebAPIConnUpgradeHeader = "Upgrade"
	// WebAPIConnUpgradeTypeALPN is a connection upgrade type that specifies
	// the upgraded connection should be handled by the ALPN handler.
	WebAPIConnUpgradeTypeALPN = "alpn"
)

const (
	// MetricGenerateRequests counts how many generate server keys requests
	// are issued over time
	MetricGenerateRequests = "auth_generate_requests_total"

	// MetricGenerateRequestsThrottled measures how many generate requests
	// are throttled
	MetricGenerateRequestsThrottled = "auth_generate_requests_throttled_total"

	// MetricGenerateRequestsCurrent measures current in-flight requests
	MetricGenerateRequestsCurrent = "auth_generate_requests"

	// MetricGenerateRequestsHistogram measures generate requests latency
	MetricGenerateRequestsHistogram = "auth_generate_seconds"

	// MetricServerInteractiveSessions measures interactive sessions in flight
	MetricServerInteractiveSessions = "server_interactive_sessions_total"

	// MetricProxySSHSessions measures sessions in flight on the proxy
	MetricProxySSHSessions = "proxy_ssh_sessions_total"

	// MetricRemoteClusters measures connected remote clusters
	MetricRemoteClusters = "remote_clusters"

	// MetricTrustedClusters counts trusted clusters
	MetricTrustedClusters = "trusted_clusters"

	// MetricClusterNameNotFound counts times a cluster name was not found
	MetricClusterNameNotFound = "cluster_name_not_found_total"

	// MetricFailedLoginAttempts counts failed login attempts
	MetricFailedLoginAttempts = "failed_login_attempts_total"

	// MetricConnectToNodeAttempts counts ssh attempts
	MetricConnectToNodeAttempts = "connect_to_node_attempts_total"

	// MetricFailedConnectToNodeAttempts counts failed ssh attempts
	MetricFailedConnectToNodeAttempts = "failed_connect_to_node_attempts_total"

	// MetricUserMaxConcurrentSessionsHit counts number of times a user exceeded their max concurrent ssh connections
	MetricUserMaxConcurrentSessionsHit = "user_max_concurrent_sessions_hit_total"

	// MetricProxyConnectionLimitHit counts the number of times the proxy connection limit was exceeded
	MetricProxyConnectionLimitHit = "proxy_connection_limit_exceeded_total"

	// MetricUserLoginCount counts user logins
	MetricUserLoginCount = "user_login_total"

	// MetricHeartbeatConnectionsReceived counts heartbeat connections received by auth
	MetricHeartbeatConnectionsReceived = "heartbeat_connections_received_total"

	// MetricCertificateMismatch counts login failures due to certificate mismatch
	MetricCertificateMismatch = "certificate_mismatch_total"

	// MetricHeartbeatsMissed counts the nodes that failed to heartbeat
	MetricHeartbeatsMissed = "heartbeats_missed_total"

	// MetricWatcherEventsEmitted counts watcher events that are emitted
	MetricWatcherEventsEmitted = "watcher_events"

	// MetricWatcherEventSizes measures the size of watcher events that are emitted
	MetricWatcherEventSizes = "watcher_event_sizes"

	// MetricMissingSSHTunnels returns the number of missing SSH tunnels for this proxy.
	MetricMissingSSHTunnels = "proxy_missing_ssh_tunnels"

	// TagCluster is a metric tag for a cluster
	TagCluster = "cluster"
)

const (
	// MetricProcessCPUSecondsTotal measures CPU seconds consumed by process
	MetricProcessCPUSecondsTotal = "process_cpu_seconds_total"
	// MetricProcessMaxFDs shows maximum amount of file descriptors allowed for the process
	MetricProcessMaxFDs = "process_max_fds"
	// MetricProcessOpenFDs shows process open file descriptors
	MetricProcessOpenFDs = "process_open_fds"
	// MetricProcessResidentMemoryBytes measures bytes consumed by process resident memory
	MetricProcessResidentMemoryBytes = "process_resident_memory_bytes"
	// MetricProcessStartTimeSeconds measures process start time
	MetricProcessStartTimeSeconds = "process_start_time_seconds"
)

const (
	// MetricGoThreads is amount of system threads used by Go runtime
	MetricGoThreads = "go_threads"

	// MetricGoGoroutines measures current number of goroutines
	MetricGoGoroutines = "go_goroutines"

	// MetricGoInfo provides information about Go runtime version
	MetricGoInfo = "go_info"

	// MetricGoAllocBytes measures allocated memory bytes
	MetricGoAllocBytes = "go_memstats_alloc_bytes"

	// MetricGoHeapAllocBytes measures heap bytes allocated by Go runtime
	MetricGoHeapAllocBytes = "go_memstats_heap_alloc_bytes"

	// MetricGoHeapObjects measures count of heap objects created by Go runtime
	MetricGoHeapObjects = "go_memstats_heap_objects"
)

const (
	// MetricBackendWatchers is a metric with backend watchers
	MetricBackendWatchers = "backend_watchers_total"

	// MetricBackendWatcherQueues is a metric with backend watcher queues sizes
	MetricBackendWatcherQueues = "backend_watcher_queues_total"

	// MetricBackendRequests measures count of backend requests
	MetricBackendRequests = "backend_requests"

	// MetricBackendReadHistogram measures histogram of backend read latencies
	MetricBackendReadHistogram = "backend_read_seconds"

	// MetricBackendWriteHistogram measures histogram of backend write latencies
	MetricBackendWriteHistogram = "backend_write_seconds"

	// MetricBackendBatchWriteHistogram measures histogram of backend batch write latencies
	MetricBackendBatchWriteHistogram = "backend_batch_write_seconds"

	// MetricBackendBatchReadHistogram measures histogram of backend batch read latencies
	MetricBackendBatchReadHistogram = "backend_batch_read_seconds"

	// MetricBackendWriteRequests measures backend write requests count
	MetricBackendWriteRequests = "backend_write_requests_total"

	// MetricBackendWriteFailedRequests measures failed backend write requests count
	MetricBackendWriteFailedRequests = "backend_write_requests_failed_total"

	// MetricBackendBatchWriteRequests measures batch backend writes count
	MetricBackendBatchWriteRequests = "backend_batch_write_requests_total"

	// MetricBackendBatchFailedWriteRequests measures failed batch backend requests count
	MetricBackendBatchFailedWriteRequests = "backend_batch_write_requests_failed_total"

	// MetricBackendReadRequests measures backend read requests count
	MetricBackendReadRequests = "backend_read_requests_total"

	// MetricBackendFailedReadRequests measures failed backend read requests count
	MetricBackendFailedReadRequests = "backend_read_requests_failed_total"

	// MetricBackendBatchReadRequests measures batch backend read requests count
	MetricBackendBatchReadRequests = "backend_batch_read_requests_total"

	// MetricBackendBatchFailedReadRequests measures failed backend batch read requests count
	MetricBackendBatchFailedReadRequests = "backend_batch_read_requests_failed_total"

	// MetricLostCommandEvents measures the number of command events that were lost
	MetricLostCommandEvents = "bpf_lost_command_events"

	// MetricLostDiskEvents measures the number of disk events that were lost.
	MetricLostDiskEvents = "bpf_lost_disk_events"

	// MetricLostNetworkEvents measures the number of network events that were lost.
	MetricLostNetworkEvents = "bpf_lost_network_events"

	// MetricLostRestrictedEvents measures the number of restricted events that were lost
	MetricLostRestrictedEvents = "bpf_lost_restricted_events"

	// MetricState tracks the state of the teleport process.
	MetricState = "process_state"

	// MetricNamespace defines the teleport prometheus namespace
	MetricNamespace = "teleport"

	// MetricConnectedResources tracks the number and type of resources connected via keepalives
	MetricConnectedResources = "connected_resources"

	// MetricBuildInfo tracks build information
	MetricBuildInfo = "build_info"

	// MetricCacheEventsReceived tracks the total number of events received by a cache
	MetricCacheEventsReceived = "cache_events"

	// MetricStaleCacheEventsReceived tracks the number of stale events received by a cache
	MetricStaleCacheEventsReceived = "cache_stale_events"

	// MetricRegisteredServers tracks the number of Teleport servers that have successfully registered with the Teleport cluster and have not reached the end of their ttl
	MetricRegisteredServers = "registered_servers"

	// MetricReverseSSHTunnels defines the number of connected SSH reverse tunnels to the proxy
	MetricReverseSSHTunnels = "reverse_tunnels_connected"

	// TagRange is a tag specifying backend requests
	TagRange = "range"

	// TagReq is a tag specifying backend request type
	TagReq = "req"

	// TagTrue is a tag value to mark true values
	TagTrue = "true"

	// TagFalse is a tag value to mark false values
	TagFalse = "false"

	// TagResource is a tag specifying the resource for an event
	TagResource = "resource"

	// TagVersion is a prometheus label for version of Teleport built
	TagVersion = "version"

	// TagGitref is a prometheus label for the gitref of Teleport built
	TagGitref = "gitref"

	// TagGoVersion is a prometheus label for version of Go used to build Teleport
	TagGoVersion = "goversion"

	// TagCacheComponent is a prometheus label for the cache component
	TagCacheComponent = "cache_component"

	// TagType is a prometheus label for type of resource or tunnel connected
	TagType = "type"

	// TagServer is a prometheus label to indicate what server the metric is tied to
	TagServer = "server"

	// TagClient is a prometheus label to indicate what client the metric is tied to
	TagClient = "client"
)

const AdminRoleName = "admin"

AdminRoleName is the name of the default admin role for all local users if another role is not explicitly assigned

const (
	// GetHomeDirSubsystem is an SSH subsystem request that Teleport
	// uses to get the home directory of a remote user.
	GetHomeDirSubsystem = "gethomedir"
)

const (
	// HTTPNextProtoTLS is the NPN/ALPN protocol negotiated during
	// HTTP/1.1.'s TLS setup.
	// https://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml#alpn-protocol-ids
	HTTPNextProtoTLS = "http/1.1"
)

const MaxEnvironmentFileLines = 1000

MaxEnvironmentFileLines is the maximum number of lines in a environment file.

const MaxHTTPRequestSize = 10 * 1024 * 1024

MaxHTTPRequestSize is the maximum accepted size (in bytes) of the body of a received HTTP request. This limit is meant to be used with utils.ReadAtMost to prevent resource exhaustion attacks.

const MaxHTTPResponseSize = 10 * 1024 * 1024

MaxHTTPResponseSize is the maximum accepted size (in bytes) of the body of a received HTTP response. This limit is meant to be used with utils.ReadAtMost to prevent resource exhaustion attacks.

const MaxResourceSize = 1000000

MaxResourceSize is the maximum size (in bytes) of a serialized resource. This limit is typically only enforced against resources that are likely to arbitrarily grow (e.g. PluginData).

const SCP = "scp"

SCP is Secure Copy.

const StandardHTTPSPort = 443

StandardHTTPSPort is the default port used for the https URI scheme, cf. RFC 7230 § 2.7.2.

const UserSingleUseCertTTL = time.Minute

UserSingleUseCertTTL is a TTL for per-connection user certificates.

const UserSystem = "system"

UserSystem defines a user as system.

const (
	Version = "12.0.0-dev"
)

const WebAPIVersion = "v1"

WebAPIVersion is a current webapi version

Variables

var Gitref string

Gitref variable is automatically set to the output of git-describe during the build process

var MinClientVersion string

MinClientVersion is the minimum client version required by the server.

Functions

func Component

func Component(components ...string) string

Component generates "component:subcomponent1:subcomponent2" strings used in debugging

func NewWebAssetsFilesystem

func NewWebAssetsFilesystem() (http.FileSystem, error)

NewWebAssetsFilesystem is a no-op in this build mode.

Types

type Principal

type Principal string

A principal name for use in SSH certificates.

const (
	// The localhost domain, for talking to a proxy or node on the same
	// machine.
	PrincipalLocalhost Principal = "localhost"
	// The IPv4 loopback address, for talking to a proxy or node on the same
	// machine.
	PrincipalLoopbackV4 Principal = "127.0.0.1"
	// The IPv6 loopback address, for talking to a proxy or node on the same
	// machine.
	PrincipalLoopbackV6 Principal = "::1"
)