SSH connection from rhel6 to rhel8 fails with message 'Unable to negotiate a key exchange method'
Issue
- During ssh connection from
RHEL6
toRHEL8
server, getting below in verbose output :-
debug2: mac_setup: found hmac-sha1
debug1: kex: server->client aes128-ctr hmac-sha1 none
debug2: mac_setup: found hmac-sha1
debug1: kex: client->server aes128-ctr hmac-sha1 none
Unable to negotiate a key exchange method
- Above message is observed , even when
FIPS
is not enabled.
Environment
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 6
- openssh
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