SSH-Key wird auch mit ssh-add nicht freigeschaltet

Ich bin sehr verwirrt. Jedes Handbuch, das ich die letzten 15 Minuten gelesen habe, besagt, dass dies funktionieren sollte, aber es funktioniert nicht:

$ ssh-agent -s SSH_AUTH_SOCK=/tmp/ssh-syXn9Tk09V9P/agent.16332; export SSH_AUTH_SOCK; SSH_AGENT_PID=16333; export SSH_AGENT_PID; echo Agent pid 16333; $ eval `ssh-agent -s` Agent pid 16362 $ ssh-add -l The agent has no identities. $ ssh-add .ssh/user\@server.de.key Enter passphrase for .ssh/user@server.de.key:  Identity added: .ssh/user@server.de.key (.ssh/user@server.de.key) $ ssh-add -l 1023 SHA256:TQ6nDwMeeP9tHf43lAG0mC5cbIPx5h7RYxMUcYKJHPI .ssh/user@server.de.key (RSA) $ ssh server.de Enter passphrase for key '/home/iras/.ssh/user@server.de.key': 

In der ssh config gibt es für server.de einen Eintrag mit Identitätsbenutzer und dem mitgelieferten ssh-Schlüssel.

Die ausführliche Ausgabe:

$ ssh -vvv server.de OpenSSH_7.2p2, OpenSSL 1.0.2h 3 May 2016 debug1: Reading configuration data /home/iras/.ssh/config debug1: /home/iras/.ssh/config line 127: Applying options for apache4 debug1: /home/iras/.ssh/config line 177: Applying options for * debug1: Reading configuration data /etc/ssh/ssh_config debug2: resolving "10.0.0.42" port 22 debug2: ssh_connect_direct: needpriv 0 debug1: Connecting to 10.0.0.42 [10.0.0.42] port 22. debug1: Connection established. debug1: key_load_public: No such file or directory debug1: identity file /home/iras/.ssh/user@server.de.key type -1 debug1: key_load_public: No such file or directory  debug1: identity file /home/iras/.ssh/user@server.de.key-cert type -1  debug1: Enabling compatibility mode for protocol 2.0  debug1: Local version string SSH-2.0-OpenSSH_7.2  debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.3  debug1: match: OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.3 pat OpenSSH_6.6.1* compat 0x04000000  debug2: fd 3 setting O_NONBLOCK  debug1: Authenticating to 10.0.0.42:22 as 'user'  debug3: hostkeys_foreach: reading file "/home/iras/.ssh/known_hosts"  debug3: record_hostkey: found key type ECDSA in file /home/iras/.ssh/known_hosts:69  debug3: load_hostkeys: loaded 1 keys from 10.0.0.42  debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521  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@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,ext-info-c  debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa  debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc  debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-cbc,aes192-cbc,aes256-cbc,3des-cbc  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: curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,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,ecdsa-sha2-nistp256,ssh-ed25519  debug2: ciphers ctos: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm@openssh.com,aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se debug2: ciphers stoc: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm@openssh.com,aes256-gcm@openssh.com,chacha20-poly1305@openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se debug2: MACs ctos: hmac-md5-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,hmac-md5-96-etm@openssh.com,hmac-md5,hmac-sha1,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96 debug2: MACs stoc: hmac-md5-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,hmac-md5-96-etm@openssh.com,hmac-md5,hmac-sha1,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96 debug2: compression ctos: none,zlib@openssh.com debug2: compression stoc: none,zlib@openssh.com debug2: languages ctos:  debug2: languages stoc:  debug2: first_kex_follows 0  debug2: reserved 0  debug1: kex: algorithm: curve25519-sha256@libssh.org debug1: kex: host key algorithm: ecdsa-sha2-nistp256 debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none debug1: kex: client->server cipher: chacha20-poly1305@openssh.com 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:KAU//7qfeZspCpZwJWB7tZdYqQkGwUHVMV+830TdTwE debug3: hostkeys_foreach: reading file "/home/iras/.ssh/known_hosts" debug3: record_hostkey: found key type ECDSA in file /home/iras/.ssh/known_hosts:69 debug3: load_hostkeys: loaded 1 keys from 10.0.0.42 debug1: Host '10.0.0.42' is known and matches the ECDSA host key. debug1: Found key in /home/iras/.ssh/known_hosts:69 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 debug2: set_newkeys: mode 0 debug1: rekey after 134217728 blocks debug1: SSH2_MSG_NEWKEYS received debug2: key: /home/iras/.ssh/user@server.de.key ((nil)), explicit 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,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: Trying private key: /home/iras/.ssh/user@server.de.key Enter passphrase for key '/home/iras/.ssh/user@server.de.key':