Hi, I'm a newbie :) The question is: when I try to connect from localhost (or loopback address) it's ok. When I try to connect from outside, the message is the same in this mail subject. I don't know if is a firewall problem or what else. I tried with password authentication (yes or no) and with a non-root user (with and without password) and with ListenAddress 0.0.0.0. Nothing... I don't understand (obviously...) where is the problem. It seems to connect but it is impossible to authenticate. My sshd_config file is minimal but, if it would be possible to have a suggestion about another basic minimal sshd_config so I could try to estabilish a (also non-secure) connection and authenication for starting to understand if there is a possibility or not. I paste here the response of sshd -vvv command and I hope someone help me to understand. Sorry for my English, I'm italian... Pasquale [root@localhost ~]# ssh -vvv user@xxxxxxxxxxxxx OpenSSH_4.3p2, OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to xx.xxx.xx.xxx [xx.xxx.xx.xxx] port 22. debug1: Connection established. debug1: permanently_set_uid: 0/0 debug1: identity file /root/.ssh/identity type -1 debug1: identity file /root/.ssh/id_rsa type -1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: loaded 3 keys debug1: Remote protocol version 2.0, remote software version xxx debug1: no match: xxx debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_4.3 debug2: fd 3 setting O_NONBLOCK debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received 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,rijndael-cbc@xxxxxxxxxxxx se, 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,rijndael-cbc@xxxxxxxxxxxx se, aes128-ctr,aes192-ctr,aes256-ctr debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac- ripemd160@xxxxxxxxxxx,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac- ripemd160@xxxxxxxxxxx,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,zlib@xxxxxxxxxxx,zlib debug2: kex_parse_kexinit: none,zlib@xxxxxxxxxxx,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-group1-sha1 debug2: kex_parse_kexinit: ssh-dss debug2: kex_parse_kexinit: 3des-cbc,blowfish-cbc,twofish-cbc,arcfour,cast128- cbc,none debug2: kex_parse_kexinit: 3des-cbc,blowfish-cbc,twofish-cbc,arcfour,cast128- cbc,none debug2: kex_parse_kexinit: hmac-sha1,hmac-sha1-96,hmac-md5,hmac-md5-96,none debug2: kex_parse_kexinit: hmac-sha1,hmac-sha1-96,hmac-md5,hmac-md5-96,none 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: mac_init: found hmac-md5 debug1: kex: server->client 3des-cbc hmac-md5 none debug2: mac_init: found hmac-md5 debug1: kex: client->server 3des-cbc hmac-md5 none debug2: dh_gen_key: priv key bits set: 190/384 debug2: bits set: 523/1024 debug1: sending SSH2_MSG_KEXDH_INIT debug1: expecting SSH2_MSG_KEXDH_REPLY debug3: check_host_in_hostfile: filename /root/.ssh/known_hosts debug3: check_host_in_hostfile: match line 1 debug1: Host 'xx.xxx.xx.xxx' is known and matches the DSA host key. debug1: Found key in /root/.ssh/known_hosts:1 debug2: bits set: 503/1024 debug1: ssh_dss_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 ((nil)) debug2: key: /root/.ssh/id_dsa ((nil)) debug1: Authentications that can continue: publickey,password debug3: start over, passed a different list publickey,password 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: Trying private key: /root/.ssh/identity debug3: no such identity: /root/.ssh/identity debug1: Trying private key: /root/.ssh/id_rsa debug3: no such identity: /root/.ssh/id_rsa debug1: Trying private key: /root/.ssh/id_dsa debug3: no such identity: /root/.ssh/id_dsa debug2: we did not send a packet, disable method debug3: authmethod_lookup password debug3: remaining preferred: ,password debug3: authmethod_is_enabled password debug1: Next authentication method: password user@xxxxxxxxxxxxx's password: debug3: packet_send2: adding 64 (len 53 padlen 11 extra_pad 64) debug2: we sent a password packet, wait for reply debug1: Authentications that can continue: publickey,password Permission denied, please try again. user@xxxxxxxxxxxxx's password: debug3: packet_send2: adding 64 (len 53 padlen 11 extra_pad 64) debug2: we sent a password packet, wait for reply debug1: Authentications that can continue: publickey,password Permission denied, please try again. user@xxxxxxxxxxxxx's password: debug3: packet_send2: adding 64 (len 53 padlen 11 extra_pad 64) debug2: we sent a password packet, wait for reply 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 debug1: No more authentication methods to try. Permission denied (publickey).
