Ich habe zwei PC (Mac) mit dem gleichen Paar SSH-Schlüssel.
Nach einem Update auf Computer B kann ich nicht auf Computer A zugreifen
Ich führe diese Schritte aus:
- Synchronisieren Sie mit rsync .ssh dir von Maschine A nach B
- Jetzt Dateien
.ssh/id_rsa
..ssh/id_rsa.pub
,.ssh/authorized_keys
Sind die gleichen. - Löschen Sie in zwei Maschinen
.ssh/know_hosts
- Versuchen Sie und scheitern Sie
SSH mit Debug
abkrim {~/.ssh} $ ssh -vvv [email protected]
OpenSSH_7.4p1, LibreSSL 2.5.0
debug1: Reading configuration data /etc/ssh/ssh_config
debug2: resolving "192.168.1.69" port 22
debug2: ssh_connect_direct: needpriv 0
debug1: Connecting to 192.168.1.69 [192.168.1.69] port 22.
debug1: Connection established.
debug1: identity file /Users/abkrim/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/abkrim/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/abkrim/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/abkrim/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/abkrim/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/abkrim/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/abkrim/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/abkrim/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.4
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.6
debug1: match: OpenSSH_7.6 pat OpenSSH* compat 0x04000000
debug2: fd 3 setting O_NONBLOCK
debug1: Authenticating to 192.168.1.69:22 as 'abkrim'
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: curve25519-sha256,[email protected],ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c
debug2: host key algorithms: [email protected],[email protected],[email protected],[email protected],[email protected],ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected],aes128-cbc,aes192-cbc,aes256-cbc
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[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: curve25519-sha256,[email protected],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,diffie-hellman-group14-sha1
debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519
debug2: ciphers ctos: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: ciphers stoc: [email protected],aes128-ctr,aes192-ctr,aes256-ctr,[email protected],[email protected]
debug2: MACs ctos: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
debug2: MACs stoc: [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],hmac-sha2-256,hmac-sha2-512,hmac-sha1
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: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: [email protected] MAC: <implicit> compression: none
debug1: kex: client->server cipher: [email protected] MAC: <implicit> compression: none
debug3: send packet: type 30
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug3: receive packet: type 31
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:sXVosdAMvhsJ6H17TSIVVRq/fWmo5YG6EHyKm9ARWaw
The authenticity of host '192.168.1.69 (192.168.1.69)' can't be established.
ECDSA key fingerprint is SHA256:sXVosdAMvhsJ6H17TSIVVRq/fWmo5YG6EHyKm9ARWaw.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.1.69' (ECDSA) to the list of known hosts.
debug3: send packet: type 21
debug2: set_newkeys: mode 1
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: receive packet: type 21
debug1: SSH2_MSG_NEWKEYS received
debug2: set_newkeys: mode 0
debug1: rekey after 134217728 blocks
debug2: key: /Users/abkrim/.ssh/id_rsa (0x7fa807c00440)
debug2: key: /Users/abkrim/.ssh/id_dsa (0x0)
debug2: key: /Users/abkrim/.ssh/id_ecdsa (0x0)
debug2: key: /Users/abkrim/.ssh/id_ed25519 (0x0)
debug3: send packet: type 5
debug3: receive packet: type 7
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<ssh-ed25519,ssh-rsa,rsa-sha2-256,rsa-sha2-512,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521>
debug3: receive packet: type 6
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug3: send packet: type 50
debug3: receive packet: type 51
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug3: start over, passed a different list publickey,password,keyboard-interactive
debug3: preferred publickey,keyboard-interactive,password
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /Users/abkrim/.ssh/id_rsa
debug3: send_pubkey_test
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
Authentication failed.
Aber in anderer Reihenfolge (Maschine A bis Maschine B) funktionieren einwandfrei.
Auf der Remote-Maschine zeigt der Server-SSHD Folgendes:
tail -f /var/log/system.log | grep sshd
May 1 20:42:22 iMac-2 com.apple.xpc.launchd[1] (com.openssh.sshd.DE639EE5-7072-4B2F-950A-11C38130393B[9492]): Service exited with abnormal code: 255
Service exited with abnormal code: 255
/usr/bin/sshd -ddd
meiner verschiedenen Probleme mit/etc/ssh/*_key
Reads `not hostkey availableAntworten:
Vielen Dank, dass @Spiff mir den Weg zum Debug-Problem zeigt.
Stoppen Sie sshd
Starten Sie sshd auf der Shell manuell
Dies zeigt ein Problem mit dem verwendeten Port
quelle
sshd
aber nicht den gesamtenlaunchd
Job entladen ,launchd
bleibt ein Listener auf TCP-Port 22 für Sie geöffnetsshd
. Das musst du also tun,sudo launchctl unload -w /System/Library/LaunchDaemons/ssh.plist
bevor du rennstsshd -ddd…
.sudo lsof -i :22
Sie sehen, dass ich Recht habe.