Mosh VS Gravitational Teleport

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/

I've been using Kitty's SSH features for as long as I can remember but I recently setup Mosh and I really like how it doesn't drop connections and supports roaming.

I am surprised many people write about ssh into a server. Mosh[1] feels more responsive and it also supports longer sessions.

[1] - https://mosh.org/

Also they support Mosh which I install on my servers. It's way better than plain ssh when you're on mobile networks and wifi, especially with connections that are unreliable or bandwidth-constrained.

I’ve recently been experimenting with MoSH (Mobile Shell). Basically think SSH but with UDP - so more resilient to shoddy network conditions, roaming access points, etc.

If it is not for production (e.g. running as a daemon or a server) and you only care about the development, another ad-hoc way is using screen/tmus-like software incl. byobu, and combine it with mosh.

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 -->

OP here, thanks for posting! Happy to Answer any questions. I have to give our a shoutout to Alan at Teleport for all his work on Passwordless and his work to make Passwordless / TouchID work with MacOS CLI https://github.com/gravitational/teleport/blob/master/rfd/00...

I work on the Desktop Access feature for Teleport: https://goteleport.com/docs/desktop-access/getting-started/

The tool itself is open core: https://github.com/gravitational/teleport

Most of the desktop access stuff is open source. The only desktop related thing that's proprietary is our tool that allows for access to machines not connected to Active Directory. A sizeable chunk of the desktop access code is even Written In Rust™: https://github.com/gravitational/teleport/tree/master/lib/sr...!