I'm trying to connect an old Cisco sftp client to my sftp server running on Ubuntu 22.04. (I followed this setup)
When the client tries to connect, I get the following error:
Sep 13 16:20:54 backuptest sshd[2294]: Unable to negotiate with X.X.X.X port 45234: no matching host key type found. Their offer: [email protected],[email protected],[email protected],[email protected],ssh-rsa,ssh-dss [preauth]
I have already tried to add a conf file like this one:
HostkeyAlgorithms ssh-dss,ssh-rsa
KexAlgorithms +diffie-hellman-group1-sha1
but now I still get:
Sep 13 16:24:34 backuptest sshd[2311]: Unable to negotiate with X.X.X.X port 45423: no matching cipher found. Their offer: aes256-cbc,3des-cbc [preauth]
How can I fix it?