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  • Cannot SSH into any machine from RHEL 8.5

    Posted on

    I am too having this issue now where I cannot SSH into my win 10 machine from my VM (virtual box) RHEL 8.5 server, but I can SSH from my win10 into the RHEL server...
    [SH_Admin@Homme-Network-Security-Server bin]$ ssh -p 22 inspiropectus7@192.168.1.157 -vT
    OpenSSH_8.0p1, OpenSSL 1.1.1k FIPS 25 Mar 2021
    debug1: Reading configuration data /etc/ssh/ssh_config
    debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
    debug1: Reading configuration data /etc/crypto-policies/back-ends/openssh.config
    debug1: configuration requests final Match pass
    debug1: re-parsing configuration
    debug1: Reading configuration data /etc/ssh/ssh_config
    debug1: Reading configuration data /etc/ssh/ssh_config.d/05-redhat.conf
    debug1: Reading configuration data /etc/crypto-policies/back-ends/openssh.config
    debug1: Connecting to 192.168.1.157 [192.168.1.157] port 22.
    debug1: Connection established.
    debug1: identity file /home/SH_Admin/.ssh/id_rsa type 0
    debug1: identity file /home/SH_Admin/.ssh/id_rsa-cert type -1
    debug1: identity file /home/SH_Admin/.ssh/id_dsa type -1
    debug1: identity file /home/SH_Admin/.ssh/id_dsa-cert type -1
    debug1: identity file /home/SH_Admin/.ssh/id_ecdsa type 2
    debug1: identity file /home/SH_Admin/.ssh/id_ecdsa-cert type -1
    debug1: identity file /home/SH_Admin/.ssh/id_ed25519 type -1
    debug1: identity file /home/SH_Admin/.ssh/id_ed25519-cert type -1
    debug1: identity file /home/SH_Admin/.ssh/id_xmss type -1
    debug1: identity file /home/SH_Admin/.ssh/id_xmss-cert type -1
    debug1: Local version string SSH-2.0-OpenSSH_8.0
    debug1: Remote protocol version 2.0, remote software version OpenSSH_for_Windows_8.1
    debug1: match: OpenSSH_for_Windows_8.1 pat OpenSSH* compat 0x04000000
    debug1: Authenticating to 192.168.1.157:22 as 'inspiropectus7'
    debug1: SSH2_MSG_KEXINIT sent
    debug1: SSH2_MSG_KEXINIT received
    debug1: kex: algorithm: curve25519-sha256
    debug1: kex: host key algorithm: ecdsa-sha2-nistp256
    debug1: kex: server->client cipher: aes256-gcm@openssh.com MAC: compression: none
    debug1: kex: client->server cipher: aes256-gcm@openssh.com MAC: compression: none
    debug1: kex: curve25519-sha256 need=32 dh_need=32
    debug1: kex: curve25519-sha256 need=32 dh_need=32
    debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
    debug1: Server host key: ecdsa-sha2-nistp256 SHA256:
    debug1: Host '192.168.1.157' is known and matches the ECDSA host key.
    debug1: Found key in /home/SH_Admin/.ssh/known_hosts:1
    debug1: rekey out after 4294967296 blocks
    debug1: SSH2_MSG_NEWKEYS sent
    debug1: expecting SSH2_MSG_NEWKEYS
    debug1: SSH2_MSG_NEWKEYS received
    debug1: rekey in after 4294967296 blocks
    debug1: Will attempt key: /home/SH_Admin/.ssh/id_rsa RSA SHA256: agent
    debug1: Will attempt key: /home/SH_Admin/.ssh/id_ecdsa ECDSA SHA256: agent
    debug1: Will attempt key: /home/SH_Admin/.ssh/id_dsa
    debug1: Will attempt key: /home/SH_Admin/.ssh/id_ed25519
    debug1: Will attempt key: /home/SH_Admin/.ssh/id_xmss
    debug1: SSH2_MSG_EXT_INFO received
    debug1: kex_input_ext_info: server-sig-algs=
    debug1: SSH2_MSG_SERVICE_ACCEPT received
    debug1: Authentications that can continue: publickey,password,keyboard-interactive
    debug1: Next authentication method: publickey
    debug1: Offering public key: /home/SH_Admin/.ssh/id_rsa RSA SHA256: agent
    debug1: Authentications that can continue: publickey,password,keyboard-interactive
    debug1: Offering public key: /home/SH_Admin/.ssh/id_ecdsa ECDSA SHA256: agent
    debug1: Authentications that can continue: publickey,password,keyboard-interactive
    debug1: Trying private key: /home/SH_Admin/.ssh/id_dsa
    debug1: Trying private key: /home/SH_Admin/.ssh/id_ed25519
    debug1: Trying private key: /home/SH_Admin/.ssh/id_xmss
    debug1: Next authentication method: keyboard-interactive
    debug1: Authentications that can continue: publickey,password,keyboard-interactive
    debug1: Next authentication method: password

    (Please note I replaced the areas where there are key representation with ""
    After that I try to authenticate with my password from the Win10 machine and I get the error:

    inspiropectus7@192.168.1.157's password:
    debug1: Authentications that can continue: publickey,password,keyboard-interactive
    Permission denied, please try again.
    inspiropectus7@192.168.1.157's password:
    debug1: Authentications that can continue: publickey,password,keyboard-interactive
    Permission denied, please try again.
    inspiropectus7@192.168.1.157's password:
    Received disconnect from 192.168.1.157 port 22:2: Too many authentication failures
    Disconnected from 192.168.1.157 port 22

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