Either the client needs to relax the. The mismatch cause the attempted connection to fail. It appears the client is setup to only accept advanced ( Next Generation Encryption - NGE) cryptographic algorithms and the server offers a public key using the older RSA encryption method. Sharing the experience so it can help someone.1 ACCEPTED SOLUTION.
Sftp Connection Failed Kex Error No Match For Method Algo Client Mac Which YourPreauth debug1: kex: host key algorithm: ssh-ed25519 preauth debug1: kex: client->server.Unable to negotiate with XX.XX.XX.XX port 1234: no matching MAC found.Their root cause of this error is on your source machine the supported MAC doesnt contain the MAC from target server.To see this run in command line on your machine $ ssh -Q mac # output would be something now in order to connect to target server with their choice of mac which your server doesn't support you have to explicitly provide one of the mac supported by target server. JENKINS-63829 Git SSH connection fails in TriLead KexManager. Debug1: Connection established. Ssh/idrsa gory192.168.2.101 OpenSSH7.4p1 Debian-10+deb9u3, OpenSSL 1.0.2l debug1: Reading configuration data /etc/ssh/sshconfig debug1: /etc/ssh/sshconfig line 19: Applying options for debug1: Connecting to 192.168.2.101 192.168.2.101 port 22. Kex error: no match for method server host key algo: server ecdsa-sha2-nistp256-cert-v01openssh.com, client ssh-ed25519 Relevant logs and/or screenshotsgoryOsito: ssh -v -i.
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