From a hotel room during a business trip I have experienced again that ssh over zerotier stuck at some initialization phase:
jordana@penguin:~$ ssh -v ubuntu@oracle.zeronsd
OpenSSH_8.4p1 Debian-5+deb11u1, OpenSSL 1.1.1n 15 Mar 2022
debug1: Reading configuration data /etc/ssh/ssh_config
...
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
I suspect this has something to do with dropped packets again due to MTU limitations over zerotier tunnel as ssh into public IP directly works OK. To workaround this time I changed this line in ssh config:
jordana@penguin:~$ sudo nano /etc/ssh/ssh_config
MACs hmac-sha2-256
While this made ssh work from terminal directly but ansible still could not connect.
