App: Core Tunnel
Developer: Codinn Technologies
Genres: Developer Tools, Productivity

The missing ssh tunnel manager, compatible with OpenSSH, automatic and intuitive. Don't waste your time; be productive.

## Features

OpenSSH Compatible
• Everything in OpenSSH, local / remote / dynamic port forwarding types, agent forwarding, certificates, proxy jump, etc.
• Can read your existing `ssh_config` file as the source of advanced options, especially helpful for experienced users.
• Can work with GnuPG agent, YubiKey, Authy and Google Authenticator.

Keychain Integration
• Tightly integrated with macOS Keychain, don't have to enter passwords or passphrases repeatedly.
• It's totally optionally, you can opt-in or opt-out at any time.

Advanced Options Editor
• A handy way to tune per-host advanced options.
• For every ssh directives, there is a contextual help provides immediate information, no more googling.

Automatic Reconnect
• Always tries to restore your connections after network failure or waking up from sleep.
• Tunnels can be set to connect on app startup.

Menubar Icon
• Control and monitor tunnels without switching out your current working window.

Tags
• Use tags to organize your hundreds or thousands of tunnels.
• Tag your tunnel by a simple drag & drop actions.

Premium Features
• Unlimited number of connections
• Importing and exporting
• Sync hosts and tags between all of your Mac computers
• Scriptable (automation with AppleScript and Automator)
• Prioritized customer support

Go Premium to support our development and unleash the power of Core Tunnel.

## Premium License

We offered optional in-app purchases for premium features. Price may vary by location:

- USD 9.99 for 1-Year License
- USD 29.99 for 4-Year License (save 25%)

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We'd love to answer your questions or just hear what you think about Core Tunnel:

Our Community: https://community.codinn.com/c/core-tunnel

Use the community to request support or report bug. Discuss and explore Core Tunnel’s future with us by joining the community.

Release notes:
- Add site and community links in Help menu.
- Security enhancements and minor bug fixes.

## Updates in Version 3.6.1

Version 3.6.1 is a hotfix release for fixing:

- Could not use embedded OpenSSH (@priller).

## Updates in Version 3.6

The codebase of embedded OpenSSH has been updated to version 8.8. See https://community.codinn.com/t/3652/2 for the OpenSSH changes.

### Added
- Add a new `LogVerbose` configuration directive, this option is intended for OpenSSH debugging and is not enabled by default.
- Add a `PermitRemoteOpen` option that allows the client to restrict the destination when reverse dynamic forwarding is used with SOCKS.
- Add a `KnownHostsCommand` option that allows the client to obtain `known_hosts` data from a command in addition to the usual files.

### Changed
- Rename the `PubkeyAcceptedKeyTypes` directive to `PubkeyAcceptedAlgorithms` in advanced options.
- Similarly, rename `HostbasedKeyTypes` to `HostbasedAcceptedAlgorithms`.
- Remove `ChallengeResponseAuthentication` directive in favour of `KbdInteractiveAuthentication`.
- Always display fingerprint context while prompting user to confirm host key (@kaffeeundsalz).
- Specifies the port number to connect on the remote host explicitly in equivalent command (@liushuai).

Special thanks to @kaffeeundsalz, @fastzombies and Shuai Liu (@liushuai) for helping this release.