Nach dem Wiederherstellen der Konfigurationssicherung mithilfe der Luci-Weboberfläche funktionierte die ssh-Authentifizierung mit öffentlichen Schlüsseln nicht mehr:
$ ssh root@192.168.1.254 -i ~/.ssh/id_rsa root@192.168.1.254: Permission denied (publickey)
Überprüfte den Dropbear:
root@OpenWrt:/etc/dropbear# ls -l -rw------- 1 501 20 724 Apr 29 09:07 authorized_keys
/ etc / dropbear / authorised_keys enthält den korrekten id_rsa.pub- Schlüssel.
Luci bestätigt dies auch. Was kann falsch sein?
$ ssh root@192.168.1.254 -i ~/.ssh/id_rsa -vvvv OpenSSH_7.6p1, LibreSSL 2.6.2 debug1: Reading configuration data /Users/drew/.ssh/config debug1: /Users/drew/.ssh/config line 1: Applying options for * debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 48: Applying options for * debug2: ssh_connect_direct: needpriv 0 debug1: Connecting to 192.168.1.254 port 22. debug1: Connection established. debug1: identity file /Users/drew/.ssh/id_rsa type 0 debug1: key_load_public: No such file or directory debug1: identity file /Users/drew/.ssh/id_rsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_7.6 debug1: Remote protocol version 2.0, remote software version dropbear_2015.67 debug1: no match: dropbear_2015.67 debug3: fd 5 is O_NONBLOCK debug1: Authenticating to 192.168.1.254:22 as 'root' debug3: hostkeys_foreach: reading file "/Users/drew/.ssh/known_hosts" debug3: record_hostkey: found key type RSA in file /Users/drew/.ssh/known_hosts:57 debug3: load_hostkeys: loaded 1 keys from 192.168.1.254 debug3: order_hostkeyalgs: prefer hostkeyalgs: ssh-rsa-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa 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,curve25519-sha256@libssh.org,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: ssh-rsa-cert-v01@openssh.com,rsa-sha2-512,rsa-sha2-256,ssh-rsa,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519 debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: compression ctos: none,zlib@openssh.com,zlib debug2: compression stoc: none,zlib@openssh.com,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-group14-sha1,diffie-hellman-group1-sha1,kexguess2@matt.ucc.asn.au debug2: host key algorithms: ssh-rsa,ssh-dss debug2: ciphers ctos: aes128-ctr,aes256-ctr,aes128-cbc,aes256-cbc,3des-ctr,3des-cbc debug2: ciphers stoc: aes128-ctr,aes256-ctr,aes128-cbc,aes256-cbc,3des-ctr,3des-cbc debug2: MACs ctos: hmac-sha1,hmac-md5 debug2: MACs stoc: hmac-sha1,hmac-md5 debug2: compression ctos: none debug2: compression stoc: none debug2: languages ctos: debug2: languages stoc: debug2: first_kex_follows 0 debug2: reserved 0 debug1: kex: algorithm: diffie-hellman-group14-sha1 debug1: kex: host key algorithm: ssh-rsa debug1: kex: server->client cipher: aes128-ctr MAC: hmac-sha1 compression: none debug1: kex: client->server cipher: aes128-ctr MAC: hmac-sha1 compression: none debug1: sending SSH2_MSG_KEXDH_INIT debug2: bits set: 1001/2048 debug3: send packet: type 30 debug1: expecting SSH2_MSG_KEXDH_REPLY debug3: receive packet: type 31 debug1: Server host key: ssh-rsa SHA256:MGw2pwNSJ41mmcBheN3x+BimgVePcLDr15ynkP49L9I debug3: hostkeys_foreach: reading file "/Users/drew/.ssh/known_hosts" debug3: record_hostkey: found key type RSA in file /Users/drew/.ssh/known_hosts:57 debug3: load_hostkeys: loaded 1 keys from 192.168.1.254 debug1: Host '192.168.1.254' is known and matches the RSA host key. debug1: Found key in /Users/drew/.ssh/known_hosts:57 debug2: bits set: 1025/2048 debug3: send packet: type 21 debug2: set_newkeys: mode 1 debug1: rekey after 4294967296 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 4294967296 blocks debug2: key: /Users/drew/.ssh/id_rsa (0x7fc70eb01490), explicit, agent debug2: key: (0x7fc70e903480), agent debug2: key: (0x7fc70e9046e0), agent debug3: send packet: type 5 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 debug3: start over, passed a different list publickey debug3: preferred gssapi-with-mic,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 public key: RSA SHA256:NWHiMGnH1Sz8K/cLRV9x493V6B6P8+oat6xtwFViZl4 /Users/drew/.ssh/id_rsa debug3: send_pubkey_test debug3: send packet: type 50 debug2: we sent a publickey packet, wait for reply debug3: receive packet: type 51 debug1: Authentications that can continue: publickey debug1: Offering public key: RSA SHA256:OLw0tzPx2/CQeq3PzmwR3UdCK0RJuy2t7frV1WyX7fk debug3: send_pubkey_test debug3: send packet: type 50 debug2: we sent a publickey packet, wait for reply debug3: receive packet: type 51 debug1: Authentications that can continue: publickey debug1: Offering public key: RSA SHA256:8Jahyt/2O/nfBJYtKQuSkwPxg/Ol9ZJcH60hOneKKLQ debug3: send_pubkey_test debug3: send packet: type 50 debug2: we sent a publickey packet, wait for reply debug3: receive packet: type 51 debug1: Authentications that can continue: publickey debug2: we did not send a packet, disable method debug1: No more authentication methods to try. root@192.168.1.254: Permission denied (publickey).