https://bugzilla.mindrot.org/show_bug.cgi?id=2643 This bug still exists on ubuntu 17.10 with 1:7.5p1-10ubuntu0.1 package and this workaround works LC_ALL=C ssh some_host
Can you reproduce the problem with the unmodified source code from openssh.com? I built all the releases from 7.3 to 7.7 and confirmed that that the testcase in bug #2643 is indeed still fixed in 7.4 up, at least on my Fedora 26 and Ubuntu 16.04.4 systems. $ echo "IdentitiesOnly=yes" >/tmp/ssh_config $ for i in 3 4 5 6 7; do v=7.${i}p1; echo -n "$v "; LANG=tr_TR.UTF-8 openssh-${v}/ssh -F /tmp/ssh_config localhost echo ok 2>&1 | head -1; done 7.3p1 /tmp/ssh_config: line 1: Bad configuration option: Identitiesonly 7.4p1 ok 7.5p1 ok 7.6p1 ok 7.7p1 ok Could you give an exact example of what didn't work for you?
3 months with no followup == closed bug
Close RESOLVED bugs with the release of openssh-8.0