[Freeipa-users] Freeipa -ssh keys
Rob Crittenden
rcritten at redhat.com
Tue Apr 23 15:14:41 UTC 2013
naresh reddy wrote:
> Hi Rob
>
> Thank you very much
> but i tried the same with two fedora systems
> and got the similar issue
>
> i think the error is due to kerberos not installed but i can see it is
> installed on the client and sever
> please suggest.
sssd needs to look up the keys in IPA so the client needs to be enrolled
for this to work.
rob
>
> [np at ldap ~]$ ssh -vvv np at eng.switchlab.net@ldap1.eng.switchlab.net
> OpenSSH_5.3p1, OpenSSL 1.0.0-fips 29 Mar 2010
> debug1: Reading configuration data /etc/ssh/ssh_config
> debug1: Applying options for *
> debug2: ssh_connect: needpriv 0
> debug1: Executing proxy command: exec /usr/bin/sss_ssh_knownhostsproxy
> -p 22 ldap1.eng.switchlab.net
> debug1: identity file /home/np/.ssh/identity type -1
> debug3: Not a RSA1 key file /home/np/.ssh/id_rsa.
> debug2: key_type_from_name: unknown key type '-----BEGIN'
> debug3: key_read: missing keytype
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug3: key_read: missing whitespace
> debug2: key_type_from_name: unknown key type '-----END'
> debug3: key_read: missing keytype
> debug1: identity file /home/np/.ssh/id_rsa type 1
> debug1: identity file /home/np/.ssh/id_dsa type -1
> debug1: permanently_drop_suid: 501
> debug1: Remote protocol version 2.0, remote software version OpenSSH_6.1
> debug1: match: OpenSSH_6.1 pat OpenSSH*
> debug1: Enabling compatibility mode for protocol 2.0
> debug1: Local version string SSH-2.0-OpenSSH_5.3
> debug2: fd 5 setting O_NONBLOCK
> debug2: fd 4 setting O_NONBLOCK
> debug1: SSH2_MSG_KEXINIT sent
> debug3: Wrote 792 bytes for a total of 813
> 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,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-sha2-256,hmac-sha2-512,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-sha2-256,hmac-sha2-512,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
> debug3: Wrote 24 bytes for a total of 837
> debug2: dh_gen_key: priv key bits set: 144/256
> debug2: bits set: 516/1024
> debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
> debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
> debug3: Wrote 144 bytes for a total of 981
> debug3: check_host_in_hostfile: filename /home/np/.ssh/known_hosts
> debug3: check_host_in_hostfile: match line 2
> debug1: Host 'ldap1.eng.switchlab.net' is known and matches the RSA host
> key.
> debug1: Found key in /home/np/.ssh/known_hosts:2
> 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
> debug3: Wrote 16 bytes for a total of 997
> debug2: set_newkeys: mode 0
> debug1: SSH2_MSG_NEWKEYS received
> debug1: SSH2_MSG_SERVICE_REQUEST sent
> debug3: Wrote 48 bytes for a total of 1045
> debug2: service_accept: ssh-userauth
> debug1: SSH2_MSG_SERVICE_ACCEPT received
> debug2: key: /home/np/.ssh/identity ((nil))
> debug2: key: /home/np/.ssh/id_rsa (0x7f9ee71687b0)
> debug2: key: /home/np/.ssh/id_dsa ((nil))
> debug3: Wrote 80 bytes for a total of 1125
> debug1: Authentications that can continue:
> publickey,gssapi-keyex,gssapi-with-mic,password
> debug3: start over, passed a different list
> publickey,gssapi-keyex,gssapi-with-mic,password
> debug3: preferred
> gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
> debug3: authmethod_lookup gssapi-keyex
> debug3: remaining preferred:
> gssapi-with-mic,publickey,keyboard-interactive,password
> debug3: authmethod_is_enabled gssapi-keyex
> debug1: Next authentication method: gssapi-keyex
> debug1: No valid Key exchange context
> debug2: we did not send a packet, disable method
> debug3: authmethod_lookup gssapi-with-mic
> debug3: remaining preferred: publickey,keyboard-interactive,password
> debug3: authmethod_is_enabled gssapi-with-mic
> debug1: Next authentication method: gssapi-with-mic
> debug1: Unspecified GSS failure. Minor code may provide more information
> Credentials cache file '/tmp/krb5cc_501' not found
>
> debug1: Unspecified GSS failure. Minor code may provide more information
> Credentials cache file '/tmp/krb5cc_501' not found
>
> debug1: Unspecified GSS failure. Minor code may provide more information
>
>
> debug1: Unspecified GSS failure. Minor code may provide more information
> Credentials cache file '/tmp/krb5cc_501' not found
>
> debug2: we did not send a packet, disable method
> debug3: authmethod_lookup publickey
> debug3: remaining preferred: keyboard-interactive,password
> debug3: authmethod_is_enabled publickey
> debug1: Next authentication method: publickey
> debug1: Trying private key: /home/np/.ssh/identity
> debug3: no such identity: /home/np/.ssh/identity
> debug1: Offering public key: /home/np/.ssh/id_rsa
> debug3: send_pubkey_test
> debug2: we sent a publickey packet, wait for reply
> debug3: Wrote 384 bytes for a total of 1509
> debug1: Authentications that can continue:
> publickey,gssapi-keyex,gssapi-with-mic,password
> debug1: Trying private key: /home/np/.ssh/id_dsa
> debug3: no such identity: /home/np/.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
> np at eng.switchlab.net@ldap1.eng.switchlab.net's password:
> debug3: packet_send2: adding 48 (len 75 padlen 5 extra_pad 64)
> debug2: we sent a password packet, wait for reply
> debug3: Wrote 144 bytes for a total of 1653
> debug1: Authentication succeeded (password).
> 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.
> debug3: Wrote 128 bytes for a total of 1781
> debug2: callback start
> debug2: client_session2_setup: id 0
> debug2: channel 0: request pty-req confirm 1
> debug1: Sending environment.
> debug3: Ignored env HOSTNAME
> debug3: Ignored env SHELL
> debug3: Ignored env TERM
> debug3: Ignored env HISTSIZE
> debug3: Ignored env USER
> debug3: Ignored env LS_COLORS
> debug3: Ignored env MAIL
> debug3: Ignored env PATH
> debug3: Ignored env PWD
> debug1: Sending env LANG = en_US.UTF-8
> debug2: channel 0: request env confirm 0
> debug3: Ignored env HISTCONTROL
> debug3: Ignored env SHLVL
> debug3: Ignored env HOME
> debug3: Ignored env LOGNAME
> debug3: Ignored env CVS_RSH
> debug3: Ignored env LESSOPEN
> debug3: Ignored env G_BROKEN_FILENAMES
> debug3: Ignored env _
> debug2: channel 0: request shell confirm 1
> debug2: callback done
> debug2: channel 0: open confirm rwindow 0 rmax 32768
> debug3: Wrote 448 bytes for a total of 2229
> 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 failed login: Tue Apr 23 14:37:59 BST 2013 from 10.30.2.177 on
> ssh:notty
> There were 8 failed login attempts since the last successful login.
> -sh-4.2$ debug3: Wrote 48 bytes for a total of 2277
> edebug3: Wrote 48 bytes for a total of 2325
> xdebug3: Wrote 48 bytes for a total of 2373
> idebug3: Wrote 48 bytes for a total of 2421
> tdebug3: Wrote 48 bytes for a total of 2469
>
> logout
> debug2: channel 0: rcvd eof
> debug2: channel 0: output open -> drain
> debug2: channel 0: obuf empty
> debug2: channel 0: close_write
> debug2: channel 0: output drain -> closed
> debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
> debug1: client_input_channel_req: channel 0 rtype eow at openssh.com reply 0
> debug2: channel 0: rcvd eow
> debug2: channel 0: close_read
> debug2: channel 0: input open -> closed
> debug2: channel 0: rcvd close
> debug3: channel 0: will not send data after close
> debug2: channel 0: almost dead
> debug2: channel 0: gc: notify user
> debug2: channel 0: gc: user detached
> debug2: channel 0: send close
> debug2: channel 0: is dead
> debug2: channel 0: garbage collecting
> debug1: channel 0: free: client-session, nchannels 1
> debug3: channel 0: status: The following connections are open:
> #0 client-session (t4 r0 i3/0 o3/0 fd -1/-1 cfd -1)
>
> debug3: channel 0: close_fds r -1 w -1 e 7 c -1
> debug3: Wrote 32 bytes for a total of 2501
> debug3: Wrote 64 bytes for a total of 2565
> Connection to ldap1.eng.switchlab.net closed.
> Transferred: sent 2288, received 2656 bytes, in 1.5 seconds
> Bytes per second: sent 1563.3, received 1814.8
> debug1: Exit status 0
>
> Nareshchandra Paturi
>
> 14, St. Augustine’s Court,
> Mornington Road,
> london.
> E11 3BQ.
> Mob:07466666001,07856918100
> Ph:02082579579
> ------------------------------------------------------------------------
> *From:* Rob Crittenden <rcritten at redhat.com>
> *To:* Naresh Chandra R Paturi <nareshbtech at yahoo.com>;
> freeipa-users at redhat.com
> *Sent:* Saturday, April 20, 2013 8:11 PM
> *Subject:* Re: [Freeipa-users] Freeipa -ssh keys
>
> Naresh Chandra R Paturi wrote:
> > Hi all
> >
> > I am new to freeipa
> > we have a group of linux servers where we are tyring to establish
> > password less logins, in order to do this we need to copy ssh keys of
> > all uses to each and every cleint server . so we are trying to establish
> > freeipa central server where we store the keys of all the users.
> > we got free ipa working with passwords but trying to authenticate with
> > keys.
> > is this achievable. if you please kindly direct me.
>
> With IPA 3.0 this is configured for you automatically by default on
> RHEL/Fedora systems.
>
> https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html-single/Identity_Management_Guide/index.html#user-keys
>
> I believe you will need an openssh patch for this to work on a
> Debian/Ubuntu client. I believe it also requires sssd.
>
> rob
>
>
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