[CentOS] happy new years ssh key problem :)

bluethundr

bluethundr at gmail.com
Fri Dec 31 19:32:46 UTC 2010


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



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