Package: rssh Version: 2.3.4-4+deb8u1 Applied the update yesterday. It removed +s from /usr/lib/rssh/rssh_chroot_helper which broke chroot functionality. In the log we started getting these messages when an inbound connection was attempted: Feb 4 13:38:08 wdc-aa-04 rssh_chroot_helper[12309]: new session for backup- dev01, UID=758Feb 4 13:38:08 wdc-aa-04 rssh_chroot_helper[12309]: chroot() failed, 5: Operation not permitted This command resolved it:
chmod +s /usr/lib/rssh/rssh_chroot_helper
