
4 Aug
2023
4 Aug
'23
6:58 a.m.
Recent Fedora systems' SSH client won't access CentOS 6 servers. Unable to negotiate with x.y.z.w port 22: no matching host key type found. Their offer: ssh-rsa,ssh-dss (One should not still be running CentOS 6!) All my workstations run recent Fedora systems. How could I access this server? It turns out the Windows has an SSH client these days and it isn't as picky about ciphers as Fedora. It could well be that other Linux distros support older ciphers too. This isn't generally a good thing: those ciphers were retired due to security concerns.