People, I have generated the key pair RSA from my root linux's user and then I copy my RSA public key to /root/.ssh/authorized_keys from the linux ssh server. After that I edit the sshd_config file and put permit rootlogin no and the correct path to the authorized_keys file. But when I execute from the client "ssh [EMAIL PROTECTED]" it doesn't enter and the password banner is showed. Here I put my debugs from ssh client and server and my sshd_config file from the server....I REALLY THANKS YOUR COMMENTS !!!
SERVER ------ racka:~/.ssh# /usr/sbin/sshd -d debug1: sshd version OpenSSH_4.3p2 Debian-8 debug1: read PEM private key done: type RSA debug1: private host key: #0 type 1 RSA debug1: read PEM private key done: type DSA debug1: private host key: #1 type 2 DSA debug1: rexec_argv[0]='/usr/sbin/sshd' debug1: rexec_argv[1]='-d' debug1: Bind to port 22 on 10.1.1.7. Server listening on 10.1.1.7 port 22. debug1: Server will not fork when running in debugging mode. debug1: rexec start in 4 out 4 newsock 4 pipe -1 sock 7 debug1: inetd sockets after dupping: 3, 3 Connection from 10.1.1.2 port 36173 debug1: Client protocol version 2.0; client software version OpenSSH_3.8.1p1 Debian-8.sarge.6 debug1: match: OpenSSH_3.8.1p1 Debian-8.sarge.6 pat OpenSSH_3.* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_4.3p2 Debian-8 debug1: permanently_set_uid: 101/65534 debug1: list_hostkey_types: ssh-rsa,ssh-dss debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: client->server aes128-cbc hmac-md5 none debug1: kex: server->client aes128-cbc hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST received debug1: SSH2_MSG_KEX_DH_GEX_GROUP sent debug1: expecting SSH2_MSG_KEX_DH_GEX_INIT debug1: SSH2_MSG_KEX_DH_GEX_REPLY sent debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: KEX done debug1: userauth-request for user root service ssh-connection method none debug1: attempt 0 failures 0 debug1: PAM: initializing for "root" debug1: PAM: setting PAM_RHOST to "10.1.1.2" debug1: PAM: setting PAM_TTY to "ssh" Failed none for root from 10.1.1.2 port 36173 ssh2 Failed none for root from 10.1.1.2 port 36173 ssh2 debug1: userauth-request for user root service ssh-connection method publickey debug1: attempt 1 failures 1 debug1: test whether pkalg/pkblob are acceptable debug1: temporarily_use_uid: 0/0 (e=0/0) debug1: trying public key file /root/.ssh/authorized_keys buffer_get_ret: trying to get more bytes 129 than in buffer 34 buffer_get_string_ret: buffer_get failed buffer_get_bignum2_ret: invalid bignum key_from_blob: can't read rsa key key_read: key_from_blob AAAAB3NzaC1yc2EAAAABIwAAAIEAwlWGOvzpqyPFb24q6JtOs/sq7UTl/hK3fo9JNaT6bk3k failed buffer_get_ret: trying to get more bytes 129 than in buffer 34 buffer_get_string_ret: buffer_get failed buffer_get_bignum2_ret: invalid bignum key_from_blob: can't read rsa key key_read: key_from_blob AAAAB3NzaC1yc2EAAAABIwAAAIEAwlWGOvzpqyPFb24q6JtOs/sq7UTl/hK3fo9JNaT6bk3k failed debug1: restore_uid: 0/0 debug1: temporarily_use_uid: 0/0 (e=0/0) debug1: trying public key file /root/.ssh/authorized_keys buffer_get_ret: trying to get more bytes 129 than in buffer 34 buffer_get_string_ret: buffer_get failed buffer_get_bignum2_ret: invalid bignum key_from_blob: can't read rsa key key_read: key_from_blob AAAAB3NzaC1yc2EAAAABIwAAAIEAwlWGOvzpqyPFb24q6JtOs/sq7UTl/hK3fo9JNaT6bk3k failed buffer_get_ret: trying to get more bytes 129 than in buffer 34 buffer_get_string_ret: buffer_get failed buffer_get_bignum2_ret: invalid bignum key_from_blob: can't read rsa key key_read: key_from_blob AAAAB3NzaC1yc2EAAAABIwAAAIEAwlWGOvzpqyPFb24q6JtOs/sq7UTl/hK3fo9JNaT6bk3k failed debug1: restore_uid: 0/0 Failed publickey for root from 10.1.1.2 port 36173 ssh2 CLIENTE ------- ana:~/.ssh# ssh -vv [EMAIL PROTECTED] OpenSSH_3.8.1p1 Debian-8.sarge.6, OpenSSL 0.9.7e 25 Oct 2004 debug1: Reading configuration data /etc/ssh/ssh_config debug2: ssh_connect: needpriv 0 debug1: Connecting to 10.1.1.7 [10.1.1.7] port 22. debug1: Connection established. debug1: identity file /root/.ssh/identity type -1 debug2: key_type_from_name: unknown key type '-----BEGIN' debug2: key_type_from_name: unknown key type '-----END' debug1: identity file /root/.ssh/id_rsa type 1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3p2 Debian-8 debug1: match: OpenSSH_4.3p2 Debian-8 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_3.8.1p1 Debian-8.sarge.6 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,[EMAIL PROTECTED],aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,[EMAIL PROTECTED],aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,[EMAIL PROTECTED],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,[EMAIL PROTECTED],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: none,zlib debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa,ssh-dss debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,[EMAIL PROTECTED],aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,[EMAIL PROTECTED],aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,[EMAIL PROTECTED],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,[EMAIL PROTECTED],hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,[EMAIL PROTECTED] debug2: kex_parse_kexinit: none,[EMAIL PROTECTED] debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: mac_init: found hmac-md5 debug1: kex: server->client aes128-cbc hmac-md5 none debug2: mac_init: found hmac-md5 debug1: kex: client->server aes128-cbc hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug2: dh_gen_key: priv key bits set: 139/256 debug2: bits set: 524/1024 debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Host '10.1.1.7' is known and matches the RSA host key. debug1: Found key in /root/.ssh/known_hosts:3 debug2: bits set: 529/1024 debug1: ssh_rsa_verify: signature correct debug2: kex_derive_keys debug2: set_newkeys: mode 1 debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug2: set_newkeys: mode 0 debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /root/.ssh/identity ((nil)) debug2: key: /root/.ssh/id_rsa (0x808cbf8) debug2: key: /root/.ssh/id_dsa ((nil)) debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey debug1: Trying private key: /root/.ssh/identity debug1: Offering public key: /root/.ssh/id_rsa debug2: we sent a publickey packet, wait for reply debug1: Authentications that can continue: publickey,password debug1: Trying private key: /root/.ssh/id_dsa debug2: we did not send a packet, disable method debug1: Next authentication SSHD_CONFIG (SERVER) ------------------- racka:/etc/ssh# more sshd_config # Package generated configuration file # See the sshd(8) manpage for details # What ports, IPs and protocols we listen for Port 22 # Use these options to restrict which interfaces/protocols sshd will bind to #ListenAddress :: #ListenAddress 0.0.0.0 ListenAddress 10.1.1.7 Protocol 2 # HostKeys for protocol version 2 HostKey /etc/ssh/ssh_host_rsa_key HostKey /etc/ssh/ssh_host_dsa_key #Privilege Separation is turned on for security UsePrivilegeSeparation yes # Lifetime and size of ephemeral version 1 server key KeyRegenerationInterval 3600 ServerKeyBits 768 # Logging SyslogFacility AUTH LogLevel INFO # Authentication: LoginGraceTime 120 PermitRootLogin no StrictModes yes RSAAuthentication yes PubkeyAuthentication yes AuthorizedKeysFile %h/.ssh/authorized_keys # Don't read the user's ~/.rhosts and ~/.shosts files IgnoreRhosts yes # For this to work you will also need host keys in /etc/ssh_known_hosts RhostsRSAAuthentication no # similar for protocol version 2 HostbasedAuthentication no # Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication #IgnoreUserKnownHosts yes # To enable empty passwords, change to yes (NOT RECOMMENDED) PermitEmptyPasswords no # Change to yes to enable challenge-response passwords (beware issues with # some PAM modules and threads) ChallengeResponseAuthentication no # Change to no to disable tunnelled clear text passwords #PasswordAuthentication yes # Kerberos options #KerberosAuthentication no #KerberosGetAFSToken no #KerberosOrLocalPasswd yes #KerberosTicketCleanup yes # GSSAPI options #GSSAPIAuthentication no #GSSAPICleanupCredentials yes X11Forwarding yes X11DisplayOffset 10 PrintMotd no PrintLastLog yes TCPKeepAlive yes #UseLogin no #MaxStartups 10:30:60 #Banner /etc/issue.net # Allow client to pass locale environment variables AcceptEnv LANG LC_* Subsystem sftp /usr/lib/openssh/sftp-server UsePAM yes #AllowUsers pepe loro -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". 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