[CONTROLLER-1819] key_verify failed for server_host_key

Thu, 5 Apr 2018 01:57:09 +0000

Performed stop/start on a controller:

/opt/odl/bin/stop
/opt/odl/bin/start

After that SSH connection fails:

# ssh -p 8101 -o StrictHostKeyChecking=no karaf@localhost -v
OpenSSH_6.6.1, OpenSSL 1.0.1e-fips 11 Feb 2013
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 56: Applying options for *
debug1: Connecting to localhost [127.0.0.1] port 8101.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: identity file /root/.ssh/id_rsa type 1
debug1: identity file /root/.ssh/id_rsa-cert type -1
debug1: identity file /root/.ssh/id_dsa type -1
debug1: identity file /root/.ssh/id_dsa-cert type -1
debug1: identity file /root/.ssh/id_ecdsa type -1
debug1: identity file /root/.ssh/id_ecdsa-cert type -1
debug1: identity file /root/.ssh/id_ed25519 type -1
debug1: identity file /root/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.6.1
debug1: Remote protocol version 2.0, remote software version SSHD-CORE-0.14.0
debug1: no match: SSHD-CORE-0.14.0
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-sha1 none
debug1: kex: client->server aes128-ctr hmac-sha1 none
debug1: kex: ecdh-sha2-nistp256 need=20 dh_need=20
debug1: kex: ecdh-sha2-nistp256 need=20 dh_need=20
debug1: sending SSH2_MSG_KEX_ECDH_INIT
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: DSA 84:ce:d9:95:e1:ea:24:b9:1f:5f:3e:fd:3b:93:44:c6
debug1: Host '[localhost]:8101' is known and matches the DSA host key.
debug1: Found key in /root/.ssh/known_hosts:11
debug1: ssh_dss_verify: signature incorrect
key_verify failed for server_host_key

To fix it, I have to delete "host.key" and restart the controller again.

rm -rf /opt/odl/etc/host.key
/opt/odl/bin/stop
/opt/odl/bin/start

Controller: nitrogen

OpenDaylight JIRA

[CONTROLLER-1819] key_verify failed for server_host_key