Hi. I made some changes and now there are fresh installations, and durring add new node I got the same issue:
2017-01-07 07:44:08,847 ERROR [org.ovirt.engine.core.bll.hostdeploy.AddVdsCommand] (default task-49) [c5fb7a0] Failed to establish session with host 'node1': SSH session closed during connection 'root@10.30.30.51' 2017-01-07 07:44:08,847 WARN [org.ovirt.engine.core.bll.hostdeploy.AddVdsCommand] (default task-49) [c5fb7a0] Validation of action 'AddVds' failed for user admin@internal-authz. Reasons: VAR__ACTION__ADD,VAR__TYPE__HOST,$server 10.30.30 .51,VDS_CANNOT_CONNECT_TO_SERVER on both servers are this fresh installed system: CentOS Linux release 7.3.1611 (Core) Here are some informations about you asked last time: [root@ovirt ovirt-engine]# rpm -qa | grep ovirt ovirt-imageio-common-0.4.0-1.el7.noarch python-ovirt-engine-sdk4-4.0.2-1.el7.centos.x86_64 ovirt-imageio-proxy-setup-0.4.0-0.201608310602.gita9b573b.el7.centos.noarch ovirt-engine-websocket-proxy-4.0.5.5-1.el7.centos.noarch ovirt-engine-dashboard-1.0.5-1.el7.centos.noarch ovirt-engine-setup-plugin-vmconsole-proxy-helper-4.0.5.5-1.el7.centos.noarch ovirt-engine-backend-4.0.5.5-1.el7.centos.noarch ovirt-engine-extension-aaa-jdbc-1.1.1-1.el7.noarch ovirt-host-deploy-1.5.3-1.el7.centos.noarch ovirt-engine-wildfly-overlay-10.0.0-1.el7.noarch ovirt-engine-setup-base-4.0.5.5-1.el7.centos.noarch ovirt-vmconsole-proxy-1.0.4-1.el7.centos.noarch ovirt-host-deploy-java-1.5.3-1.el7.centos.noarch ovirt-release40-4.0.5-2.noarch ovirt-engine-setup-plugin-ovirt-engine-common-4.0.5.5-1.el7.centos.noarch ovirt-engine-dwh-4.0.5-1.el7.centos.noarch ovirt-imageio-proxy-0.4.0-0.201608310602.gita9b573b.el7.centos.noarch ovirt-engine-setup-plugin-websocket-proxy-4.0.5.5-1.el7.centos.noarch ovirt-iso-uploader-4.0.2-1.el7.centos.noarch ovirt-engine-dbscripts-4.0.5.5-1.el7.centos.noarch ovirt-engine-webadmin-portal-4.0.5.5-1.el7.centos.noarch ovirt-engine-setup-4.0.5.5-1.el7.centos.noarch ovirt-engine-vmconsole-proxy-helper-4.0.5.5-1.el7.centos.noarch ovirt-engine-userportal-4.0.5.5-1.el7.centos.noarch ovirt-engine-restapi-4.0.5.5-1.el7.centos.noarch ovirt-setup-lib-1.0.2-1.el7.centos.noarch ovirt-engine-sdk-python-3.6.9.1-1.el7.centos.noarch ovirt-engine-extensions-api-impl-4.0.5.5-1.el7.centos.noarch ovirt-engine-wildfly-10.1.0-1.el7.x86_64 ovirt-engine-lib-4.0.5.5-1.el7.centos.noarch ovirt-vmconsole-1.0.4-1.el7.centos.noarch ovirt-engine-cli-3.6.8.1-1.el7.centos.noarch ovirt-engine-dwh-setup-4.0.5-1.el7.centos.noarch ovirt-engine-tools-backup-4.0.5.5-1.el7.centos.noarch ovirt-image-uploader-4.0.1-1.el7.centos.noarch ovirt-engine-tools-4.0.5.5-1.el7.centos.noarch ovirt-engine-setup-plugin-ovirt-engine-4.0.5.5-1.el7.centos.noarch ovirt-engine-4.0.5.5-1.el7.centos.noarch [root@ovirt ovirt-engine]# tail -33f server.log 2017-01-07 07:44:08,843 INFO [org.apache.sshd.client.session.ClientSessionImpl] (sshd-SshClient[4b16ff17]-nio2-thread-2) Server version string: SSH-2.0-OpenSSH_6.6.1 2017-01-07 07:44:08,844 WARN [org.apache.sshd.client.session.ClientSessionImpl] (sshd-SshClient[4b16ff17]-nio2-thread-2) Exception caught: java.lang.IllegalStateException: Unable to negotiate key exchange for kex algorithms (client: ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group1-sha1 / server: diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1,diffie-hellman-group-exchange-sha1) at org.apache.sshd.common.session.AbstractSession.negotiate(AbstractSession.java:1109) at org.apache.sshd.common.session.AbstractSession.doHandleMessage(AbstractSession.java:357) at org.apache.sshd.common.session.AbstractSession.handleMessage(AbstractSession.java:295) at org.apache.sshd.client.session.ClientSessionImpl.handleMessage(ClientSessionImpl.java:256) at org.apache.sshd.common.session.AbstractSession.decode(AbstractSession.java:731) at org.apache.sshd.common.session.AbstractSession.messageReceived(AbstractSession.java:277) at org.apache.sshd.common.AbstractSessionIoHandler.messageReceived(AbstractSessionIoHandler.java:54) at org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:187) at org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:173) at org.apache.sshd.common.io.nio2.Nio2CompletionHandler$1.run(Nio2CompletionHandler.java:32) at java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.8.0_111] at org.apache.sshd.common.io.nio2.Nio2CompletionHandler.completed(Nio2CompletionHandler.java:30) at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126) [rt.jar:1.8.0_111] at sun.nio.ch.Invoker.invokeDirect(Invoker.java:157) [rt.jar:1.8.0_111] at sun.nio.ch.UnixAsynchronousSocketChannelImpl.implRead(UnixAsynchronousSocketChannelImpl.java:553) [rt.jar:1.8.0_111] at sun.nio.ch.AsynchronousSocketChannelImpl.read(AsynchronousSocketChannelImpl.java:276) [rt.jar:1.8.0_111] at sun.nio.ch.AsynchronousSocketChannelImpl.read(AsynchronousSocketChannelImpl.java:297) [rt.jar:1.8.0_111] at java.nio.channels.AsynchronousSocketChannel.read(AsynchronousSocketChannel.java:420) [rt.jar:1.8.0_111] at org.apache.sshd.common.io.nio2.Nio2Session.startReading(Nio2Session.java:173) at org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:189) at org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:173) at org.apache.sshd.common.io.nio2.Nio2CompletionHandler$1.run(Nio2CompletionHandler.java:32) at java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.8.0_111] at org.apache.sshd.common.io.nio2.Nio2CompletionHandler.completed(Nio2CompletionHandler.java:30) at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126) [rt.jar:1.8.0_111] at sun.nio.ch.Invoker$2.run(Invoker.java:218) [rt.jar:1.8.0_111] at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112) [rt.jar:1.8.0_111] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_111] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_111] at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_111] In the end server (oVirt Node) in /var/log/secure.log: Jan 7 08:10:26 ns3047117 sshd[30377]: fatal: Unable to negotiate a key exchange method [preauth] 2016-12-01 8:22 GMT+01:00 Yedidyah Bar David <d...@redhat.com>: > (Adding the list. Please reply also to the list and not only > to specific people. Thanks). > > On Wed, Nov 30, 2016 at 9:01 PM, Grzegorz Szypa > <grzegorz.sz...@gmail.com> wrote: > > Hi. > > > > It works. > > > > Problem I think are in other side, maybe I explain my landscape: > > > > oVirt Engine is VM on after NAT, but currectly this way are disabled and > now > > only work direct access to Internet via dedicated WAN IP, and oVirt Node > are > > VM also under separat WAN IP, but still the same problem. I think there > is > > no problem with SSH configuration because setting it as self-hosted > engine > > work fine > > What OS is on each of the engine and host? > > Did you change any configuration of sshd on the host, > compared to the OS's defaults? > > Please check/share the output of previous ssh command, but > with '-v' appended. > > Please also share more of the engine log, starting with a line > containing 'AddVdsCommand'. > > Please attach output of: 'rpm -qa | grep ovirt'. > > Thanks, > > > > > > > 2016-11-30 14:18 GMT+01:00 Yedidyah Bar David <d...@redhat.com>: > >> > >> On Wed, Nov 30, 2016 at 1:58 PM, Grzegorz Szypa > >> <grzegorz.sz...@gmail.com> wrote: > >> > Hi. > >> > > >> > Did you meet ever with problem, when you try to add new node to quite > >> > new > >> > oVirt Engine via Gui and get Error : > >> > > >> > engine.log: > >> > > >> > 2016-11-30 12:50:55,453 ERROR > >> > [org.ovirt.engine.core.bll.hostdeploy.AddVdsCommand] (default > task-23) > >> > [178c9385] Failed to establish session with host 'node1': SSH session > >> > closed > >> > during connection '["my new node"]' > >> > 2016-11-30 12:50:55,453 WARN > >> > [org.ovirt.engine.core.bll.hostdeploy.AddVdsCommand] (default > task-23) > >> > [178c9385] Validation of action 'AddVds' failed for user > >> > admin@internal-authz. Reasons: VAR__ACTION__ADD,VAR__TYPE__ > HOST,$server > >> > vmsrv1.szypa.net,VDS_CANNOT_CONNECT_TO_SERVER > >> > > >> > > >> > > >> > in the end node I only got error that there is not possible, to > exchange > >> > key > >> > between two hosts: > >> > > >> > there is log form /var/log/secure: > >> > > >> > fatal: Unable to negotiate a key exchange method [preauth] > >> > > >> > In network I found that it could be a problem with key exchange > method, > >> > which is not available on some host. > >> > > >> > SSH connection between this two hosts work fine so I do not understand > >> > why > >> > it does not work? > >> > >> Please try this, from the engine machine, as user root: > >> > >> ssh -i /etc/pki/ovirt-engine/keys/engine_id_rsa HOST > >> > >> Replace "HOST" with the name or address you input in the field "Address" > >> in the "New Host" dialog. I think that's 'node1', from above. > >> > >> Does it work? If not, please check sshd configuration/logs on the host. > >> > >> Best, > >> -- > >> Didi > > > > > > > > > > -- > > G.Sz. > > > > -- > Didi > -- G.Sz.
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