@ChristianEhrhardt, I installed 1:7.2p2-4ubuntu2.1 version of openssh- client package from Xenial after purging 1:7.3p1-1 version. With this version, I can ssh to any host without using LC_ALL=C variable.
ssh launchpad.net ssh: connect to host launchpad.net port 22: Connection refused ssh gitlab.com Permission denied (publickey). LC_ALL=C apt-cache policy openssh-client openssh-client: Installed: 1:7.2p2-4ubuntu2.1 Candidate: 1:7.3p1-1 Version table: 1:7.3p1-1 500 500 http://archive.ubuntu.com/ubuntu yakkety/main amd64 Packages *** 1:7.2p2-4ubuntu2.1 100 100 /var/lib/dpkg/status -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1638338 Title: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1638338/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs