Hi List, Happy New Years and I was hoping to get some help on an ssh issue that I am having. For some reason I am unable to scp to hosts on this network using RSA keys. Here is what I am doing/what is going on; scp the public key to remote host [amandabackup at VIRTCENT18 ~]$ scp ~/.ssh/id_rsa_amdump.pub amandabackup at lb1:~ amandabackup at lb1's password: id_rsa_amdump.pub 100% 408 0.4KB/s 00:00 ssh (w/passwd) to remote host [amandabackup at VIRTCENT18 ~]$ ssh lb1 amandabackup at lb1's password: Last login: Fri Dec 31 10:57:05 2010 from 192.168.1.40 ######################################################### # SUMMITNJHOME.COM # # TITLE: LB1 BOX # # HOST: VIRTCENT01 # # LOCATION: SUMMIT BASEMENT # ######################################################### check to see if the key exists in authorized_keys [amandabackup at VIRTCENT01 ~]$ grep -f id_rsa_amdump.pub ~/.ssh/authorized_keys it didn't so cat it into authorized_keys [amandabackup at VIRTCENT01 ~]$ cat id_rsa_amdump.pub >> ~/.ssh/authorized_keys check again, just to make sure that it's there [amandabackup at VIRTCENT01 ~]$ grep -f id_rsa_amdump.pub ~/.ssh/authorized_keys ssh-rsa BlAB3Nza/FAKE-KEY-DATA--KEY-DATAKfMq4DDa0xaKb/FAKE-KEY-DATA--KEY-DATAsoqCu/boKNa/FAKE-KEY-DATA--KEY-DATAp1n9TcDtxm2XFHcOKUw2/14/bz1pWNDI/FAKE-KEY-DATA--KEY-DATAr9951JdK7Ny6lk/FAKE-KEY-DATA--KEY-DATA1/FAKE-KEY-DATA--KEY-DATAwh2dmgyxI9N69x3ypvWcGWShZw1BCJI06j5qIxvin99/FAKE-KEY-DATA--KEY-DATA It is. so good so far. Check permissions on authorized_keys file [amandabackup at VIRTCENT01 ~]$ ls -l ~/.ssh/authorized_keys -rw------- 1 amandabackup disk 408 Dec 31 11:02 /var/lib/amanda/.ssh/authorized_keys make sure we have the right home environment HOME=/var/lib/amanda Also good. Now, make sure ssh is looking at the right file [root at VIRTCENT01 ~]# grep -i authorizedkeysfile /etc/ssh/sshd_config AuthorizedKeysFile ~/.ssh/authorized_keys It is. Now exit and try to ssh in [amandabackup at VIRTCENT01 ~]$ exit Connection to lb1 closed. [amandabackup at VIRTCENT18 ~]$ ssh -vvv amandabackup at lb1 OpenSSH_5.6p1lpk, OpenSSL 0.9.8e-fips-rhel5 01 Jul 2008 debug1: Reading configuration data /etc/ssh/ssh_config debug2: ssh_connect: needpriv 0 debug1: Connecting to lb1 [192.168.1.23] port 22. debug1: Connection established. debug1: identity file /var/lib/amanda/.ssh/id_rsa type -1 debug1: identity file /var/lib/amanda/.ssh/id_rsa-cert type -1 debug1: identity file /var/lib/amanda/.ssh/id_dsa type -1 debug1: identity file /var/lib/amanda/.ssh/id_dsa-cert type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.6 debug1: match: OpenSSH_5.6 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.6 debug2: fd 3 setting O_NONBLOCK debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1 debug2: kex_parse_kexinit: ssh-rsa-cert-v01 at openssh.com,ssh-dss-cert-v01 at openssh.com,ssh-rsa-cert-v00 at openssh.com,ssh-dss-cert-v00 at openssh.com,ssh-rsa,ssh-dss debug2: 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 at lysator.liu.se debug2: 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 at lysator.liu.se debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64 at openssh.com,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64 at openssh.com,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,zlib at openssh.com,zlib debug2: kex_parse_kexinit: none,zlib at openssh.com,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-sha256,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-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc at lysator.liu.se debug2: 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 at lysator.liu.se debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64 at openssh.com,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64 at openssh.com,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96 debug2: kex_parse_kexinit: none,zlib at openssh.com debug2: kex_parse_kexinit: none,zlib at openssh.com debug2: 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-md5 debug1: kex: server->client aes128-ctr hmac-md5 none debug2: mac_setup: found hmac-md5 debug1: kex: client->server aes128-ctr 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: 114/256 debug2: bits set: 470/1024 debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug3: check_host_in_hostfile: host lb1 filename /var/lib/amanda/.ssh/known_hosts debug3: check_host_in_hostfile: host lb1 filename /var/lib/amanda/.ssh/known_hosts debug3: check_host_in_hostfile: match line 1 debug3: check_host_in_hostfile: host 192.168.1.23 filename /var/lib/amanda/.ssh/known_hosts debug3: check_host_in_hostfile: host 192.168.1.23 filename /var/lib/amanda/.ssh/known_hosts debug3: check_host_in_hostfile: match line 1 debug1: Host 'lb1' is known and matches the RSA host key. debug1: Found key in /var/lib/amanda/.ssh/known_hosts:1 debug2: bits set: 499/1024 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: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /var/lib/amanda/.ssh/id_rsa ((nil)) debug2: key: /var/lib/amanda/.ssh/id_dsa ((nil)) 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: /var/lib/amanda/.ssh/id_rsa debug3: no such identity: /var/lib/amanda/.ssh/id_rsa debug1: Trying private key: /var/lib/amanda/.ssh/id_dsa debug3: no such identity: /var/lib/amanda/.ssh/id_dsa debug2: we did not send a packet, disable method debug3: authmethod_lookup keyboard-interactive debug3: remaining preferred: password debug3: authmethod_is_enabled keyboard-interactive debug1: Next authentication method: keyboard-interactive debug2: userauth_kbdint debug2: we sent a keyboard-interactive packet, wait for reply debug1: Authentications that can continue: publickey,password,keyboard-interactive debug3: userauth_kbdint: disable: no info_req_seen debug2: we did not send a packet, disable method debug3: authmethod_lookup password debug3: remaining preferred: debug3: authmethod_is_enabled password debug1: Next authentication method: password amandabackup at lb1's password: debug3: packet_send2: adding 48 (len 67 padlen 13 extra_pad 64) debug2: we sent a password packet, wait for reply debug1: Authentication succeeded (password). Authenticated to lb1 ([192.168.1.23]:22). debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Requesting no-more-sessions at openssh.com debug1: Entering interactive session. debug2: callback start debug2: client_session2_setup: id 0 debug2: channel 0: request pty-req confirm 1 debug2: channel 0: request shell confirm 1 debug2: fd 3 setting TCP_NODELAY debug2: callback done debug2: channel 0: open confirm rwindow 0 rmax 32768 debug2: channel_input_status_confirm: type 99 id 0 debug2: PTY allocation request accepted on channel 0 debug2: channel 0: rcvd adjust 2097152 debug2: channel_input_status_confirm: type 99 id 0 debug2: shell request accepted on channel 0 Last login: Fri Dec 31 11:02:30 2010 from 192.168.1.40 ######################################################### # SUMMITNJHOME.COM # # TITLE: LB1 BOX # # HOST: VIRTCENT01 # # LOCATION: SUMMIT BASEMENT # ######################################################### -sh-3.2$ bash [amandabackup at VIRTCENT01 ~]$ thanks for your help and the CentOS community has done wonderful things to help me with my setups over the past year. Here's to a happy / healthy 2011!! -- GPG me!! gpg --keyserver pgp.mit.edu --recv-keys F186197B