[scponly] scp blues (read this first for this thread)

[Daniel Webb]

<blush>

Permissions problem.  My umask changed somewhere along the line.
/etc/passwd in the chroot dir didn't have world-readable.

It would be nice if scp had just *said* that (like "permission denied reading
/etc/passwd") instead of "unknown user"...

Anyhow, if you are a reader finding this post through a search engine, here
are the most common reasons for "unknown user" with scp:

1. Missing, invalid, or permission denied /etc/passwd
2. Missing /lib/libnss<something>
3. Missing /etc/nsswitch.conf (doesn't apply in most cases)

Also, make sure you find all libraries you need by using ldd on every binary
in your chroot.