I created an SSH key on my laptop using ssh-keygen and then put it on some production servers so that I don' have to type my password every time. On some servers it is working well, but on some it's still asking for my password. Why is that? Even though the .ssh/* permissions are for the users.PubkeyAuth is set to Yes:RSAAuthentication yesPubkeyAuthentication yesAuthorizedKeysFile      .ssh/authorized_keysssh -vv output:OpenSSH_5.9p1 Debian-5ubuntu1.1, OpenSSL 1.0.1 14 Mar 2012debug1: Reading configuration data /etc/ssh/ssh_configdebug1: /etc/ssh/ssh_config line 19: Applying options for *debug2: ssh_connect: needpriv 0debug1: Connecting to xxx.xxx.xxx.xxx [xxx.xxx.xxx.xxx] port 22.debug1: Connection established.debug1: identity file /home/omipenguin/.ssh/id_rsa type 1debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048debug1: identity file /home/omipenguin/.ssh/id_rsa-cert type -1debug1: identity file /home/omipenguin/.ssh/id_dsa type -1debug1: identity file /home/omipenguin/.ssh/id_dsa-cert type -1debug1: identity file /home/omipenguin/.ssh/id_ecdsa type -1debug1: identity file /home/omipenguin/.ssh/id_ecdsa-cert type -1debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3debug1: match: OpenSSH_4.3 pat OpenSSH_4*debug1: Enabling compatibility mode for protocol 2.0debug1: Local version string SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1.1debug2: fd 3 setting O_NONBLOCKdebug1: SSH2_MSG_KEXINIT sentdebug1: SSH2_MSG_KEXINIT receiveddebug2: kex_parse_kexinit: 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-sha1debug2: kex_parse_kexinit: ssh-rsa-cert-v01@openssh.com,ssh-rsa-cert-v00@openssh.com,ssh-rsa,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ssh-dss-cert-v01@openssh.com,ssh-dss-cert-v00@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-dssdebug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.sedebug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.sedebug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-sha2-256,hmac-sha2-256-96,hmac-sha2-512,hmac-sha2-512-96,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96debug2: kex_parse_kexinit: none,zlib@openssh.com,zlibdebug2: kex_parse_kexinit: none,zlib@openssh.com,zlibdebug2: 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-sha1debug2: kex_parse_kexinit: ssh-rsa,ssh-dssdebug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctrdebug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctrdebug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96debug2: kex_parse_kexinit: none,zlib@openssh.comdebug2: kex_parse_kexinit: none,zlib@openssh.comdebug2: kex_parse_kexinit: debug2: kex_parse_kexinit: debug2: kex_parse_kexinit: first_kex_follows 0 debug2: kex_parse_kexinit: reserved 0 debug2: mac_setup: found hmac-md5debug1: kex: server->client aes128-ctr hmac-md5 nonedebug2: mac_setup: found hmac-md5debug1: kex: client->server aes128-ctr hmac-md5 nonedebug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sentdebug1: expecting SSH2_MSG_KEX_DH_GEX_GROUPdebug2: dh_gen_key: priv key bits set: 121/256debug2: bits set: 527/1024debug1: SSH2_MSG_KEX_DH_GEX_INIT sentdebug1: expecting SSH2_MSG_KEX_DH_GEX_REPLYdebug1: Server host key: RSA d2:5c:eb:cf:9a:55:85:ce:a1:00:71:c8:92:bb:25:fbdebug1: Host 'xxx.xxx.xxx.xxx' is known and matches the RSA host key.debug1: Found key in /home/omipenguin/.ssh/known_hosts:14debug2: bits set: 540/1024debug1: ssh_rsa_verify: signature correctdebug2: kex_derive_keysdebug2: set_newkeys: mode 1debug1: SSH2_MSG_NEWKEYS sentdebug1: expecting SSH2_MSG_NEWKEYSdebug2: set_newkeys: mode 0debug1: SSH2_MSG_NEWKEYS receiveddebug1: Roaming not allowed by serverdebug1: SSH2_MSG_SERVICE_REQUEST sentdebug2: service_accept: ssh-userauthdebug1: SSH2_MSG_SERVICE_ACCEPT receiveddebug2: key: /home/omipenguin/.ssh/id_rsa (0x7fe924a9f3f0)debug2: key: /home/omipenguin/.ssh/id_dsa ((nil))debug2: key: /home/omipenguin/.ssh/id_ecdsa ((nil))debug1: Authentications that can continue: publickey,passworddebug1: Next authentication method: publickeydebug1: Offering RSA public key: /home/omipenguin/.ssh/id_rsadebug2: we sent a publickey packet, wait for replydebug1: Authentications that can continue: publickey,passworddebug1: Trying private key: /home/omipenguin/.ssh/id_dsadebug1: Trying private key: /home/omipenguin/.ssh/id_ecdsadebug2: we did not send a packet, disable methoddebug1: Next authentication method: passwordFile and directory permissions:drwxrwxr-x 2 emerg wheel 4096 Apr 10 11:51 .ssh/-rw-r--r-- 1 emerg emerg 403 Apr 10 11:51 .ssh/authorized_keys
SSH Key not working
ssh;key authentication