OpenSSH 9からOpenSSH 5プロトコル2へのSSH失敗:「無効なパラメータ」

OpenSSH 9からOpenSSH 5プロトコル2へのSSH失敗:「無効なパラメータ」

すべての仮想マシンを転送するために、VMware ESXi 8マシンからVMware ESXi 5マシンに接続しようとしています。問題はsshに接続できないことです。古いマシンにはOpenSSH 5があり、新しいマシンにはOpenSSH 9があります。

マイコンピュータから古いコンピュータに接続するときは、次を使用します。

ssh -oHostKeyAlgorithms=+ssh-dss -o ServerAliveInterval=30 user@machine

この古いアルゴリズムとの接続を許可します。ただし、ESXi 8でこれを試みると、うまくいかず、「無効なパラメータ」というメッセージが表示されます。

[root@s02:~] ssh -vvv -oHostkeyAlgorithms=+ssh-dss user@machine
OpenSSH_9.0p1, OpenSSL 3.0.7 1 Nov 2022
debug1: Reading configuration data //.ssh/config
debug1: Reading configuration data /etc/ssh/ssh_config
debug2: resolve_canonicalize: hostname *.*.*.* is address
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/.ssh/known_hosts'
debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/.ssh/known_hosts2'
debug1: Authenticator provider $SSH_SK_PROVIDER did not resolve; disabling
debug3: ssh_connect_direct: entering
debug1: Connecting to *.*.*.* [*.*.*.*] port 22.
debug3: set_sock_tos: set socket 3 IP_TOS 0x48
debug1: Connection established.
debug1: identity file /.ssh/id_rsa type -1
debug1: identity file /.ssh/id_rsa-cert type -1
debug1: identity file /.ssh/id_ecdsa type -1
debug1: identity file /.ssh/id_ecdsa-cert type -1
debug1: identity file /.ssh/id_ecdsa_sk type -1
debug1: identity file /.ssh/id_ecdsa_sk-cert type -1
debug1: identity file /.ssh/id_ed25519 type -1
debug1: identity file /.ssh/id_ed25519-cert type -1
debug1: identity file /.ssh/id_ed25519_sk type -1
debug1: identity file /.ssh/id_ed25519_sk-cert type -1
debug1: identity file /.ssh/id_xmss type -1
debug1: identity file /.ssh/id_xmss-cert type -1
debug1: identity file /.ssh/id_dsa type -1
debug1: identity file /.ssh/id_dsa-cert type -1
debug1: Local version string SSH-2.0-OpenSSH_9.0
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.6
debug1: compat_banner: match: OpenSSH_5.6 pat OpenSSH_5* compat 0x0c000002
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to *.*.*.*:22 as 'root'
debug1: load_hostkeys: fopen /.ssh/known_hosts2: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory
debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory
debug3: order_hostkeyalgs: no algorithms matched; accept original
debug3: send packet: type 20
debug1: SSH2_MSG_KEXINIT sent
debug3: receive packet: type 20
debug1: SSH2_MSG_KEXINIT received
debug2: local client KEXINIT proposal
debug2: KEX algorithms: ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group14-sha256,ext-info-c
debug2: host key algorithms: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],ssh-ed25519,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,[email protected],[email protected],rsa-sha2-512,rsa-sha2-256,ssh-dss
debug2: ciphers ctos: aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: compression ctos: none,[email protected],zlib
debug2: compression stoc: none,[email protected],zlib
debug2: languages ctos: 
debug2: languages stoc: 
debug2: first_kex_follows 0 
debug2: reserved 0 
debug2: peer server KEXINIT proposal
debug2: KEX algorithms: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: host key algorithms: ssh-rsa,ssh-dss
debug2: ciphers ctos: aes128-ctr,aes192-ctr,aes256-ctr,3des-cbc
debug2: ciphers stoc: aes128-ctr,aes192-ctr,aes256-ctr,3des-cbc
debug2: MACs ctos: hmac-sha1,hmac-sha1-96
debug2: MACs stoc: hmac-sha1,hmac-sha1-96
debug2: compression ctos: none,[email protected]
debug2: compression stoc: none,[email protected]
debug2: languages ctos: 
debug2: languages stoc: 
debug2: first_kex_follows 0 
debug2: reserved 0 
debug1: kex: algorithm: diffie-hellman-group-exchange-sha256
debug1: kex: host key algorithm: ssh-dss
debug1: kex: server->client cipher: aes128-ctr MAC: hmac-sha1 compression: none
debug1: kex: client->server cipher: aes128-ctr MAC: hmac-sha1 compression: none
debug3: send packet: type 34
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(2048<7680<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug3: receive packet: type 31
debug1: SSH2_MSG_KEX_DH_GEX_GROUP received
ssh_dispatch_run_fatal: Connection to *.*.*.* port 22: invalid argument

また試み

ssh -vvv -oHostkeyAlgorithms=+ssh-rsa user@machine

しかし、問題は同じです。常に違法な議論です。

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