Apple recently upgraded my security on high sierra and now my SSH is not working on any device. I continue to get errors below.
port 22: no matching cipher found. Their offer: aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc
MacBook Pro, macOS High Sierra (10.13.2)
Hi there,
Try to check if it is active on your system:
sudo systemsetup -getremotelogin
if not then enable it:
sudo systemsetup -setremotelogin on
or the switch it off:
sudo systemsetup -setremotelogin off
Let me know if it was helpful or worked... if not I'll try to get you some documentation...
I have a very similar problem where post-upgrade to High Sierra 10.13.12, SSH does not work. Unlike yours though, my SSH doesn't resolve to any particular error. It just hangs there:
Taxman:~ taxman$ ssh <user>@alyssa -v
OpenSSH_7.6p1, LibreSSL 2.6.2
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 48: Applying options for *
debug1: Connecting to alyssa port 22.
It was off. After enabling it to on there was no change.
Yes it has been working for quite sometime. However they did a security update and it stopped. It appears that it's not a disable or enable yet a cipher problem by the command it's spitting out
Found this fix and it works for me, uncommenting a line in the ssh config file:
https://george.mand.is/2017/12/fixing-ssh-after-upgrading-to-macos-10-13-2/
Yes I figured this out actually last week and never got back to updating the solution. That was the exact problem however. Thank You
SSH Not Working
