29 Jun
2020
29 Jun
'20
11:22 p.m.
On 29 Jun 2020, at 18:43, Grant Taylor via COFF <coff(a)minnie.tuhs.org> wrote:
Right, never did that in my life… I set things up when (open)SSH was v1.2 and port
forwarding not quite there yet.
Arrigo
On 6/29/20 9:53 AM, Arrigo Triulzi via COFF wrote:
It is indeed Taylor UUCP.
I run UUCP on OpenBSD for some very remote sites
connected with satellite modems (using UUCP-over-IP, not pure UUCP, where the dial-up
script initiates the UUCP exchange). UUCP was recently removed from the base OpenBSD
distribution but is still available as a package.
Do you by chance recall what UUCP software was being used? Was it by chance Taylor UUCP?
Or was it some other UUCP package in OpenBSD? I did have to enable Set UID & GID on some of the
UUCP binaries. - I don't know if this is a macOS thing that's broken or if
it's a difference in how UUCP operates on BSD or something else I'm ignorant of.
Yes, UUCP binaries do have setuid set, even on OpenBSD. Indeed, in the interest of
removing setuid binaries, UUCP was completely removed from base OpenBSD and moved to
packages.
Currently, it seems like UUCP is largely working, save
for the fact that users other than _uucp (yes, including the leading underscore)
can't access the SSH key file that's used as part of the pipe transport.
The key file won't normally work if permissions are more permissive than 0600 so that
is not surprising. Is it doing tunnelling between two ports, i.e. using -L etc.? I'm
assuming you are then using uucpd on the remote end listening on the appropriate,
forwarded, port which would suggest that you don't need UUCP to setup the connection
as long as it has access to the local forwarded port?
I should document what I'm doing, both as notes
for my self (self serving) and for others (good of the community).
Also for debugging purposes, i.e. showing us so that we can see the issues you discuss :)
Are you trying
to configure dial-up UUCP or UUCP-over-IP with uucpd?
I'm trying to configure UUCP-over-SSH. It's probably closer to UUCP-over-modem
than it is UUCP-over-IP (TCP). The ""modem pipe is the ssh command which
remotely connects to the destination host (using keys to authenticate) and launching
uucico through the SSH connection STDIO.