Re: Telnet replacement (was: ssh issue that I don't understand)

[Paul Duncan <paul.d@soi-team.org>]

Apologies if someone has already suggested this, but you can get Putty for Linux, which will act as a telnet replacement. You can tell it which port to go to, if 23 is not what you want.

Cheers,

Paul.

On Wed, 8 Jul 2026 at 20:46, <tomas@tuxteam.de> wrote:

On Wed, Jul 08, 2026 at 02:24:54PM -0400, Greg Wooledge wrote:
> Someone in this thread mentioned using "socat - tcp:host:port" as a
> replacement for "telnet host port" for manually testing plaintext
> services.
>
> I just tried this, and learned that the two are not equivalent.
> qpsmtpd is quite insistent that all of its input lines be terminated
> by CR-LF, not by LF.

[...]

> So, I searched through the manual a bit more, and it turns out there's
> an option for that:
>
> ===============================================================
> hobbit:~$ socat - tcp:localhost:25,crnl

[...]

Heh. See my other post. Great minds... read the docs :-)

Cheers
--
t

--

Paul Duncan

Marine Technician, R/V FALKOR (too)

Schmidt Ocean Institute

mobile +1 650.387.4151

VOIP +1 641.354.5141

schmidtocean.org

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