java.lang.IllegalStateException: Unable to negotiate key exchange for kex algorithms (client: ecdh-sha2-nistp256,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp384,ecdh-sha2-nistp521,ecdh-sha2-nistp521 / server: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1)

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Solutions on the web

via Apache's JIRA Issue Tracker by Damjan Jovanovic, 1 year ago
Unable to negotiate key exchange for kex algorithms (client: ecdh-sha2-nistp256,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp384,ecdh-sha2-nistp521,ecdh-sha2-nistp521 / server: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1)
via redhat.com by Unknown author, 1 year ago
Unable to negotiate key exchange for server host key algorithms (client: , , , , ,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa / server: ssh-dss)
via karaf-user by Benson Margulies, 1 year ago
Unable to negotiate key exchange for encryption algorithms (client to server) (client: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se / server: )
via mina-users by Benson Margulies, 1 year ago
Unable to negotiate key exchange for encryption algorithms (client to server) (client: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se / server: )
via mina-users by Benson Margulies, 1 year ago
Unable to negotiate key exchange for encryption algorithms (client to server) (client: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se / server: )
via mina-users by Benson Margulies, 1 year ago
Unable to negotiate key exchange for encryption algorithms (client to server) (client: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se / server: )
java.lang.IllegalStateException: Unable to negotiate key exchange for kex algorithms (client: ecdh-sha2-nistp256,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp384,ecdh-sha2-nistp521,ecdh-sha2-nistp521 / server: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1)
at org.apache.sshd.common.session.AbstractSession.negotiate(AbstractSession.java:1159)
at org.apache.sshd.common.session.AbstractSession.doHandleMessage(AbstractSession.java:388)
at org.apache.sshd.common.session.AbstractSession.handleMessage(AbstractSession.java:326)
at org.apache.sshd.client.session.ClientSessionImpl.handleMessage(ClientSessionImpl.java:306)
at org.apache.sshd.common.session.AbstractSession.decode(AbstractSession.java:780)
at org.apache.sshd.common.session.AbstractSession.messageReceived(AbstractSession.java:308)
at org.apache.sshd.common.AbstractSessionIoHandler.messageReceived(AbstractSessionIoHandler.java:54)
at org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:184)
at org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:170)
at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126)
at sun.nio.ch.Invoker$2.run(Invoker.java:218)
at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

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