Has anyone had any experience getting UUCP to work in Debian?

I've been playing around with it, and I *think* I've gotten one machine to authenticate and connect, but after login, nothing happens. UUCP seems to hang after sending username and password.

I can post details, but if no one here us familiar, then probably not worth asking.

This is UUCP over TCP on a LAN.


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Hello, Dennis!

28  ¯à 25 11:05, Dennis Katsonis -> All:

Has anyone had any experience getting UUCP to work in Debian?
I've been playing around with it, and I *think* I've gotten one
machine to authenticate and connect, but after login, nothing happens. UUCP seems to hang after sending username and password.
I can post details, but if no one here us familiar, then probably not worth asking.
This is UUCP over TCP on a LAN.

I'm not familiar with UUCP at all, but when you will get it working - please post something about it - I like to learn things by reading HOWTOS.:)

Sorry that I didn't help & good luck to find someone to (if LLMs AI does not help either)!


With best regards, Oleg.

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Oleg Artemjev wrote to Dennis Katsonis <=-

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@REPLY: <680ED48B.2896.fidolinux@bbs.mozysswamp.org>
Hello, Dennis!

28  ¯a 25 11:05, Dennis Katsonis -> All:

Has anyone had any experience getting UUCP to work in Debian?
I've been playing around with it, and I *think* I've gotten one
machine to authenticate and connect, but after login, nothing happens. UUCP seems to hang after sending username and password.
I can post details, but if no one here us familiar, then probably not worth asking.
This is UUCP over TCP on a LAN.

I'm not familiar with UUCP at all, but when you will get it working - please post something about it - I like to learn things by reading HOWTOS.:)

Sorry that I didn't help & good luck to find someone to (if LLMs AI
does not help either)!

I found the problem. I won't go into detail as I'm still not 100% where it went
wrong, but I think the problem may have been with the way that Debian packed it.

All I did, was change the "uucp@.service" file to start a different service
.

Instead of running /usr/sbin/in.uucpd, I changed it to run
/usr/sbin/uncico -l. That fixed my problem, which was that nothing was logging in right.

I'll have to look into it a bit more to see WHY the original life by Debian didn't work, as that was supposed to use PAM for Authentication. When I know a bit more, I might submit a bug report and blog about it.



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Re: Taylor UUCP in Debian
By: Dennis Katsonis to All on Mon Apr 28 2025 11:05 am

Yes. I have.

Post details. I can help.

Basic info that helped me ...

- Basically, UUCP is two uucico's talking to each other over a call. One is caller, other is receiver.

- A classic way to setup UUCP is to set uucico as the login shell of a dedicated uucp account. It won't be running all the time (it does not need to be) but will be when "called" upon login. This integrates nicely with ssh. Having the uucico's listen over tcp or on a serial port is also possible.

- For receiver:
Need to define uucp users in /etc/uucp/passwd
Nodenames of systems that will call you need to be in /etc/uucp/sys

- For caller:
Receiver system username and password needs to be /etc/uucp/call
Method of connection to receiver must be /etc/uucp/Port

- If your system is both a caller and receiver then both the above apply.

- The forward-from and forward-to options in /etc/uucp/sys enable forwarding.
This allows callers to give receivers files for other systems. They will hold
the file until they call/get a call from the other system.
Not applicable if you only have two uucico's.

- Postfix supports UUCP and can integrate with your install. This allows you to
send mail via UUCP to other systems reachable in your configs.
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Re: Taylor UUCP in Debian
By: Gecko Maze to Dennis Katsonis on Tue Jun 10 2025 09:09 pm

Yes. I have.

Post details. I can help.

*snip*

Thanks for the reply. I snipped out your information but I did get it working soon after. The issue was to do with Debians systemd service file for UUCP

I changed the "ExecStart" line in uucp@.service from "/usr/sbin/in.uucpd" to "/usr/sbin/uucico -l"

This got uucp working as expected, as you described.
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