Termius 9.35.4 — macOS

Version 9.35.4 of Termius brings stability improvements that make long-running SSH sessions feel a bit more solid. Here’s a realistic task — connecting to a remote Linux server, setting up key-based auth, and running a routine update — start to finish with the app.

Connect and configure the session

1. Open Termius and click the + icon to add a new host.
2. Enter the server IP or hostname. Under Authentication, choose Key and paste your ed25519 private key. Termius supports ECDSA and ed25519 keys natively, no conversion needed.
3. Set the terminal theme to one you prefer — per-connection themes and fonts are available, handy if you manage dev and production boxes differently.
4. Save the connection. Termius syncs credentials through encrypted cloud storage, so you can reuse this session on another machine.

Run commands with saved snippets

Once connected, open the snippet drawer. Add your common update command (e.g., apt update && apt upgrade -y) as a saved snippet. Next time you connect, one tap runs it. Custom environment variables per connection work here too, so you can set a different PATH or log level for this server.

Use SFTP side by side

With the terminal session active, open a second pane using split view. Drag a file from the SFTP browser into the terminal pane’s working directory — no separate FTP client needed. The whole workflow stays inside the same window.

Termius handles SSH agent forwarding and FIDO2 hardware keys if you need extra security. For routine server work, it keeps the overhead low without sacrificing control over keys, ciphers, or session layout.

Before you set up Termius, a few questions tend to come up. It also requires macOS 12.0 or later. The desktop app you get here works on macOS 10.13 and later, supports both Apple Silicon and Intel 64-bit, and gives you full local access. If you manage servers from a single machine, the desktop version is the straightforward choice.

Keep sessions alive in the background without leaving a terminal open

Not if you don't want to. Termius keeps sessions alive in the background, and you can reconnect from the host list without re-entering credentials. The tabbed interface and split view let you check on multiple servers at once, which is useful if you're monitoring logs or running the same command across a few boxes.

What about security beyond passwords?

Termius supports ECDSA and ed25519 keys, FIDO2 hardware-key authentication, and SSH agent forwarding so your private key never leaves the local machine. You can also lock credential storage behind Touch ID or Face ID, and enable two-factor authentication for your Termius account. For an extra layer, proxy servers and jump servers are supported, which is common in corporate environments that route connections through a bastion host.

A system administrator's morning

Imagine you're a sysadmin who starts the day by checking five Ubuntu servers. You open Termius, and your saved sessions are already there, synced from the encrypted cloud. The first server needs a package update; you tap the snippet you saved for that. The second shows signs of high disk usage — you drag an SFTP window into split view and pull down log files without switching applications. By the time you reach the third server, you've set environment variables that point to staging databases, all per-connection. The whole routine takes about ten minutes, and nothing requires leaving the app.

Set up a new server from scratch with key-based authentication

1. Create a new host entry in Termius with the server's IP and your root or admin user's password. Switch to key-based authentication after first login: generate an ed25519 key pair on your Mac, copy the public key to the server's authorized_keys file, then change the host authentication type to Key and paste in your private key.
2. Add a serial cable connection if the server is headless and needs console access before the network stack is up. Termius handles serial connections directly.
3. Configure custom environment variables for this server — for example, set a custom EDITOR or a log level variable. These apply every time you connect to this host.
4. Save a few snippets for common tasks: system updates, log tailing, service restarts. Snippets can contain shell scripts with multiple commands.
5. Enable SSH agent forwarding so you can authenticate from this server to another internal system without storing keys on the remote machine.

Once the setup is done, you can connect to the server from a Mac, a Windows machine, Linux, or even a phone or tablet — the client is available on all those platforms, and your connection settings sync through Termius's encrypted cloud. That kind of consistency saves time when you're working across different hardware during a maintenance window.

• Stability improvements.

• macOS 10.13 or later
• Intel or Apple Silicon
• English interface