New in v0.18 · Sealed agent channel & signed releases

Shared terminal sessions your security team can actually approve.

Dendrite is the collaborative terminal platform for engineering teams. Shared live sessions, single sign-on and passkeys, role-based access, just-in-time access grants, session recording, and audit that streams to your SIEM. Self-hosted, air-gap capable.

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Linux server · Linux & macOS hosts · self-hosted · air-gap capable

Two engineers collaborating in a shared Dendrite terminal session with integrated chat
Self-hostedyour infrastructure, your data
Air-gap capableno cloud dependency required
Full audit loggingevery session, on the record
Single sign-onOpenID Connect, LDAP & passkeys
The real thing

Full-featured terminal access to keep teams productive

Live shared sessions

Multiple authenticated engineers work in the same shell in real time, with integrated chat and per-participant latency visibility. No screen sharing, no credential handoffs.

Session dashboard

Active and recent sessions at a glance. Sessions persist on the host and resume exactly where you left off, from any browser.

Host vault

Search your registered hosts or paste user@hostname to connect directly. Sessions run only on machines your organisation controls.

Server-enforced controls

View-only locks, per-user silent downgrades, colour palettes, and scrollback depth - controls applied on the server, instantly, for every attached client.

Authenticated from the start

Single sign-on with your identity provider, your LDAP directory, or local accounts with passkeys. Sign-in ties every session to a real identity, and access is granted per person, never by a shared link.

All screenshots →
dendrite
Two engineers collaborating in a shared Dendrite terminal session with integrated chat Dendrite home screen with session list Dendrite host picker for starting a new session Dendrite terminal settings Dendrite sign-in page
Platform

Built for teams, engineered for compliance

Dendrite gives engineering managers visibility and CTOs a defensible security posture - without slowing the people in the shell.

Agents that verify the server New

Each agent pins your server's identity, and the control stream is sealed after a handshake both sides sign. A proxy that ends TLS can neither read nor change the commands.

Session recording & replay Enterprise

Record every session's output, joins and, if you choose, keystrokes. Recordings are encrypted and hash-chained, with a replay page for auditors and asciinema export.

Just-in-time access grants

Approving, inviting or sharing creates a grant: view or edit, with an expiry. Grants survive reconnects. When one expires or is revoked, the user is disconnected immediately.

Complete audit logging

Sign-ins, grants, joins and leaves with the reason, file transfers and refusals, recordings, and admin actions. Filter them in the dashboard and export them.

Audit to your SIEM

Send events to Splunk, Elastic, Logstash, Filebeat, syslog, webhooks or TAXII 2.1. Each output keeps its own hash chain, which can be signed, and a script checks exports offline.

File transfer, with policy Enterprise

Drag files into the terminal, with progress. Admins decide who can upload, download, pull and push, and which file types are blocked. Optional ClamAV scanning fails closed.

Passkey authentication

Passwordless WebAuthn/FIDO2 login with platform authenticators or YubiKeys. Phishing-resistant and fast.

Failover between servers New

Agents find their servers in DNS (SRV records) and fail over by priority. A server must still prove a pinned identity, so a spoofed record leads nowhere.

Invisible to scanners New

Every agent call carries a signed, single-use admission stamp. With admission enforced, anything else gets a bare 404 before any gRPC code runs.

Signed updates that roll back New

Every release is signed, and agents install a pushed update only when the signed release manifest lists it. Settings stay, and a failed health check rolls back.

One-command enrolment

Enrol a host with a single-use join token that also carries your server's fingerprint. Each agent has its own key, revocable from the Hosts page.

Role-based access control

Map identity provider or LDAP groups to platform roles. Auditors get the audit log, recordings and sign-ins, and nothing else.

View-only & vendor access

View-only for the whole session or one person, enforced by the server and kept across reconnects. Vendors watch on a grant that ends on time.

Defence in depth

Session watermarks, clipboard guards, login rate limiting, one-time WebSocket tickets, and rotated refresh tokens.

Deploy anywhere

Self-hosted in your VPC, on bare metal, or fully air-gapped. Single systemd service, nginx TLS, no container runtime.

Admin dashboard

Sessions, hosts and agent keys, users, audit, recordings, file policy and feature flags, live with no restarts. Analytics come with Professional.

Live telemetry & transcripts

Session and host health surfaced in the dashboard. Concurrent, sanitised transcript export for every participant.

5s
Graceful shutdown drain, orchestrator-ready health endpoints
0
Standing privileges - access is granted per session, and it expires
100%
Server-side audit coverage of session lifecycle events
1
Command to install the server; 1 token to enrol a host
Install

One command to your first session

No daemons to babysit. No config files to decipher. The full guide lives in the documentation.

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Enrol a Linux or macOS host with a join token from your server: it pins your server's identity, and the agent always comes from your own deployment - never a third-party host.

Pricing

Plans that scale with your rollout

Start free with up to five people, no licence needed. Small Teams adds your LDAP directory, Professional the analytics, and Enterprise single sign-on, session recording and air-gapped licences.

Community

For small teams and evaluation

$0

Free, forever

  • Up to 5 hosts and 5 users
  • Live shared sessions & chat
  • View-only & just-in-time access
  • 7-day audit log retention
  • LDAP integration & RBAC
Get Started

Small Teams

For growing engineering orgs

$10 /user/mo

Teams of up to 15 people

  • Up to 15 users, 25 hosts
  • Everything in Community
  • LDAP integration & RBAC
  • 30-day audit log retention
Get Started

Enterprise

For regulated and critical infrastructure

Custom

Annual agreements

  • Unlimited hosts and users
  • Single sign-on (OpenID Connect)
  • Session recording & file transfer
  • Guest links & offline licences
  • Dedicated support & SLA
Talk to Sales
FAQ

Frequently asked questions

Where does Dendrite run? Do commands touch your cloud?

No. Sessions execute only on hosts you register - in your VPC, on-prem, or fully air-gapped. Dendrite's coordination layer brokers authenticated connections; it never executes commands on your behalf.

How is the connection between hosts and the server protected?

Each host's agent proves its own key on every connection, and pins your server's identity: the join token carries the server's fingerprint. After a handshake both sides sign, the control stream is sealed with AES-256-GCM, so even a corporate proxy that ends TLS can neither read nor change the commands. With admission enforced, calls without a valid signed stamp get a bare 404, and agents can fail over between servers listed in DNS.

How do users sign in?

Single sign-on through OpenID Connect (Microsoft Entra ID, Okta, Google Workspace, Keycloak, Auth0 and others), your LDAP or Active Directory directory, or Argon2id-hashed local accounts with passkeys (WebAuthn/FIDO2) for passwordless, phishing-resistant login. You can use all three at once. Local accounts and passkeys work on every plan, LDAP from Small Teams, and single sign-on on Enterprise.

How does role-based access control work?

Every user holds one of five roles: viewer, vendor, operator, auditor or admin. Map identity provider or LDAP groups to roles, or set them per user in the admin dashboard - changes apply on the next request. Roles decide who can start sessions, register hosts, and reach the dashboard - privileges follow your org chart, not standing grants.

What does the audit log capture?

Sign-ins and failures, session lifecycle, access grants, joins and leaves (with the reason a connection ended), file transfers and policy refusals, recordings and their replays, and admin actions are all recorded on the server. Events can stream to Splunk, Elastic, Logstash, Filebeat, syslog, webhooks or TAXII 2.1. Each output keeps a SHA-256 hash chain, optionally HMAC-signed, so gaps and edits show up. Export the log from the dashboard or stream it to your SIEM; Enterprise supports custom retention.

Can we restrict who can type in a session?

Yes. The session owner can switch the whole session to view-only, and the server applies it immediately. Owners can also make a single participant view-only; that restriction follows the user, so reconnecting does not lift it. Access itself is a grant, view or edit, with an expiry.

How do vendors and contractors get access?

Through the vendor role: vendors sign in with their own account and join only the sessions they are invited to. They cannot start sessions or register hosts; a session they ask for goes to an admin for approval. Invite a vendor with view-only access for an hour, and when the grant expires the server disconnects them. Enterprise deployments can also share read-only links with guests who have no account.

Can sessions be recorded?

Yes, on Enterprise. When recording is on, the server records each session's terminal output and who joined, and can also capture keystrokes. Everyone in the session sees a Recording badge. In "required" mode, a session that can't be recorded is refused. Recordings stay encrypted, are hash-chained and sealed, and are kept for 90 days by default. Auditors and admins replay them on the Recordings page, with seeking, a timeline, an integrity check and asciinema export. Every replay and export is audited.

How do we update Dendrite?

Run the installer again, or dendrite update. Releases are signed, and the installer checks the signature before it installs anything. It keeps the old binaries, restarts and runs a health check, and rolls back automatically if the check fails. Your configuration, keys and accounts stay as they are; use --reconfigure to run the full setup instead. Since 0.17, Dendrite installs under its own names (dendrite-server, dendrite-agent, /etc/dendrite), and the old sshx names and SSHX_* settings keep working. To move a 0.17 host to 0.18, install again from https://dendrite.sh/get, which brings the new release key.

Is Dendrite suitable for telco and critical infrastructure (CII) environments?

That is a design goal. Self-hosted and air-gap-capable deployment, single sign-on and directory authentication, session recording, least-privilege session controls, watermarks, clipboard guards, and audit logging are built for compliance-sensitive operators. The security documentation set is aligned with ISO 27001 controls.

What does the free Community edition include?

A server without a licence runs as Community, free forever: up to 5 users and 5 hosts, live shared sessions and chat, just-in-time access, view-only and invites. LDAP comes with Small Teams, the analytics with Professional, and single sign-on, session recording, file transfer, guest links and offline licences with Enterprise.

Contact

Talk to us about your rollout

Tell us a little about your team and environment, and we will get back to you within one business day.

Submitting opens your email client addressed to sales@dendrite.sh.

Stop sharing passwords. Share sessions.

Install the Community edition in minutes, or talk to us about a production deployment.