It actually seems to be any SSH connection. Manually, via VSCode, or PHPStorm.

This seems to be there error:

[12:22:08.868] Spawned 22809
[12:22:08.973] > local-server-1> Running ssh connection command: ssh -v -T -D 57017 -o ConnectTimeout=1800 coder-vscode--Orrison--chocolate-lemur-75 bash
[12:22:08.975] > local-server-1> Spawned ssh, pid=22825
[12:22:08.979] stderr> OpenSSH_9.6p1, LibreSSL 3.3.6
[12:22:10.881] stderr> kex_exchange_identification: banner line contains invalid characters
[12:22:10.881] stderr> banner exchange: Connection to UNKNOWN port 65535: invalid format
[12:22:10.882] > local-server-1> ssh child died, shutting down
[12:22:10.886] Local server exit: 0
[12:22:10.886] Received install output: local-server-1> Running ssh connection command: ssh -v -T -D 57017 -o ConnectTimeout=1800 coder-vscode--Orrison--chocolate-lemur-75 bash
local-server-1> Spawned ssh, pid=22825
OpenSSH_9.6p1, LibreSSL 3.3.6
kex_exchange_identification: banner line contains invalid characters
banner exchange: Connection to UNKNOWN port 65535: invalid format
local-server-1> ssh child died, shutting down

[12:22:10.886] Failed to parse remote port from server output

A colleague is NOT seeing the same error and the difference seems to be he is using Mac OS 13`` OpenSSH_9.0p1, LibreSSL 3.3.6, while I am on Mac OS 14.4 (23E214) OpenSSH_9.6p1, LibreSSL 3.3.6

When trying to just ssh:

debug1: Local version string SSH-2.0-OpenSSH_9.6
debug1: kex_exchange_identification: banner line 0: \033[5 qSSH-2.0-Go
kex_exchange_identification: banner line contains invalid characters
banner exchange: Connection to UNKNOWN port 65535: invalid format

What version of Coder are you running? I think this dupes #11530 You might just need to upgrade.

v2.9.0+3215464

Is that the version of the Coder CLI client, or the server?

Is that the version of the Coder CLI client, or the server?

Both

I upgraded macOS to 14.4 and confirmed I'm on the same SSH version (OpenSSH_9.6p1, LibreSSL 3.3.6), and I don't reproduce this.

debug1: kex_exchange_identification: banner line 0: \033[5 qSSH-2.0-Go

means that there is some extra stuff being injected into the stream that SSH is trying to interpret. Specifically \033[5 q is a terminal control sequence and sets the "blinking bar" cursor shape. I'm not sure where that is coming from. After that it looks fine.

We'll need to figure out what's different about your environment.

What happens if you attempt to connect with coder ssh <workspace> rather than ssh coder.<workspace>?

What terminal emulator & shell are you using?

Can you share your environment variables (env)?

@Orrison - closing this for now. If you can provide some of the requested info above we'll reopen and continue discussion.

@Orrison - closing this for now. If you can provide some of the requested info above we'll reopen and continue discussion.

It's no problem at all. Sorry for the delay in responding. No one else on my team has this issue, so I assume it is something going on with my SSH setup locally.

I get a new system soon and will test it to see if I have the same issue and, if so, what further details I can provide.

Thank you!