Mosh VS Gravitational Teleport

Try pairing tmux with mosh, it's how I've been working for years whenever I'm forced to admin through a brittle straw. Mosh combats lag pretty well and doesn't care if your connection drops intermittently. https://mosh.org/

Curious what advantages this has over mosh?

https://mosh.org/

Normal ssh is TCP-based. But there is also a different implementation named mosh.

Do you know mobile shell (mosh)? [1]

Seems like most of the features you need are what mosh offers. I've been using it for decades, probably, and it is pretty awesome for latent mobile connections (read as: throttled 2G @16kBit/s).

https://github.com/mobile-shell/mosh

I use tmux, but as far as unreliable connections, I've found mosh[0] to be the best solution to the problem (when you have the ability to install it). It basically runs a background process on connection not tied to the session that your client will automatically reconnect to if the connection fails. I regularly close my laptop, travel between home and work, open it back up and the connection is available almost instantly.

[0] https://mosh.org/

If you haven’t already, and I know this doesn’t hold up for GUI emacs or vim, but consider running them through https://mosh.org/

FWIW, I wouldn't try to parse escape sequences "directly" from the input bytestream -- it's easy to end up with annoying bugs. Longer-term it's probably better to separate the logic e.g.:

- First step (for a UTF-8-input terminal emulator) means "lexing" the input bytestream as UTF-8 into a stream of USVs, which involves some subtleties (https://github.com/mobile-shell/mosh/blob/master/src/termina...).

- Second step is to run the DEC parser/FSM logic on the sequence of USVs, which is independent of the escape sequences (https://vt100.net/emu/dec_ansi_parser ; https://github.com/mobile-shell/mosh/blob/master/src/termina...).

- And then the third step is for the terminal to execute the "dispatch"/"execute"/etc. actions coming from the FSM, which is where the escape sequences and control chars get implemented (https://github.com/mobile-shell/mosh/blob/master/src/termina...).

Without this separation, it's easier to end up with bugs where, e.g., a UTF-8 sequence or an ANSI escape sequence is treated differently when it's split between multiple read() calls vs. all in one call.

Btw, you can use mosh to hide the latency of SSH. https://mosh.org/

To save others the search: https://github.com/gravitational/teleport/pull/35259 Apache to AGPLv3

This repo still has AGPL… and another license…

Not sure if AGPL covers all areas of the codebase?

https://github.com/gravitational/teleport

For the SSH case mentioned in the article, `ssh -R` trick should already resolve some one-time contingencies (assuming SSH connection is not blocked).

But if you find yourself requesting `ssh -R` too often, maybe just ask those datacenter people to setup a proper SSH Bastion for you. There are opensource solutions and enterprise-level ones (Teleport for example: https://github.com/gravitational/teleport), some also allows you to do audit and access control, which maybe important if you work for a enterprise client.

Teleport - Comprehensive control plane tool, but also supports accessing apps behind NATs. Written in Go.

https://github.com/gravitational/teleport/blob/master/rfd/00...

I ordinarily would have said you reinvented Teleport <https://github.com/gravitational/teleport/tree/v14.3.7#readm...> but now that they've gone AGPL with v15 I'm guessing there's a market for MIT licensed stuff, although for sure since Teleport has been around for so long it has encountered more edge cases and undergone more security reviews. I was surprised while digging up the link that Gravatational is still releasing v13 and v14 updates under Apache 2, so maybe even Teleport will continue to have legs for those who cannot deploy AGPL stuff

Teleport is an SSH for Clusters and Teams and aims to be the drop-in replacement for OpenSSH.

Are you looking to set up SSO for your cloud infrastructure? Or maybe establish tunnels to access services behind NATs and firewalls. Then Teleport is for you. It provides connectivity, authentication, access controls and audit for infrastructure. The newest update has a tonne of new features and improvements including enhanced device trust support, SSH connection resumption, MFA for admin actions, improved provisioning for Okta, and heaps. more. Check out all the changes in the Teleport release notes.

In case you didn't see it: https://goteleport.com/blog/teleport-oss-switches-to-agpl-v3... and https://github.com/gravitational/teleport/pull/35259

I readily admit it's not the same amount of :fu: as BuSL or whatever the fuck is going on over at Sentry but still :-( as compared to their much friendlier Apache 2

Link to GitHub -->