I recently had to add the following lines to my Cygwin /etc/sshd_config
to re-enable RSA in order for my older machines to connect:
HostKeyAlgorithms +ssh-rsa
PubkeyAcceptedAlgorithms +ssh-rsa
-- Chris
On 2022-03-31 06:18, Andrey Repin wrote:
Greetings, Greco Giovanni!
must port 22 on Windows server be enabled in a bidirectional way to
establish a connection with RSA key exchange?
I have a Linux server on a vlan and a Windows server on another vlan, those
vlans are connected thru a firewall, where port 22 is enabled from Linux
server to Windows server unidirectionally.
Connection with user and password works, but not with RSA key exchange: is
the problem located on port 22 unidirectional enabling?
No, it is most likely because you are connecting to Microsoft provided
OpenSSH.
`netstat -aon` and `ps ax` will tell you more.
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