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Re: [PLUG] ssh key based authentication
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A couple of people suggested permissions being too lax. The
permissions on the sprint user's homedir were 777. I changed them to
755 and it works now.
Thanks so much!
dperez@SDF.LONESTAR.ORG wrote [05/02/08]:
> I'm trying to ssh from vgcrdp to sprint.
>
> I removed the sprint user's .ssh directory and recreated it and
> repopulated the authorized_keys file with vgcrdp's public key and
> still nothing.
>
> cpucrpt1 # ls -ld ~sprint/.ssh
> drwx------ 2 sprint other 512 May 2 10:04 /oradata/tmpsprint/.ssh
> cpucrpt1 # ls -l ~sprint/.ssh
> total 2
> -rw------- 1 sprint other 225 May 2 10:09 authorized_keys
>
> Here is the output from sprint running "ssh -v -l vgcrdp cpucrpt1":
> OpenSSH_3.7.1p2, SSH protocols 1.5/2.0, OpenSSL 0.9.7c 30 Sep 2003
> debug1: Reading configuration data /opt/sfw/etc/ssh_config
> debug1: Connecting to cpucrpt1 [10.128.109.37] port 22.
> debug1: Connection established.
> debug1: identity file /oradata/tmpsprint/.ssh/identity type -1
> debug1: identity file /oradata/tmpsprint/.ssh/id_rsa type -1
> debug1: identity file /oradata/tmpsprint/.ssh/id_dsa type 1
> debug1: Remote protocol version 2.0, remote software version OpenSSH_3.7.1p2
> debug1: match: OpenSSH_3.7.1p2 pat OpenSSH*
> debug1: Enabling compatibility mode for protocol 2.0
> debug1: Local version string SSH-2.0-OpenSSH_3.7.1p2
> debug1: SSH2_MSG_KEXINIT sent
> debug1: SSH2_MSG_KEXINIT received
> debug1: kex: server->client aes128-cbc hmac-md5 none
> debug1: kex: client->server aes128-cbc hmac-md5 none
> debug1: SSH2_MSG_KEX_DH_GEX_REQUEST sent
> debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
> debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
> debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
> The authenticity of host 'cpucrpt1 (10.128.109.37)' can't be established.
> RSA key fingerprint is 5a:41:25:dc:54:b1:9f:72:e1:b7:42:1e:50:9c:25:d3.
> Are you sure you want to continue connecting (yes/no)? yes
> Warning: Permanently added 'cpucrpt1,10.128.109.37' (RSA) to the list of known hosts.
> debug1: ssh_rsa_verify: signature correct
> debug1: SSH2_MSG_NEWKEYS sent
> debug1: expecting SSH2_MSG_NEWKEYS
> debug1: SSH2_MSG_NEWKEYS received
> debug1: SSH2_MSG_SERVICE_REQUEST sent
> debug1: SSH2_MSG_SERVICE_ACCEPT received
> debug1: Authentications that can continue: publickey,password,keyboard-interactive
> debug1: Next authentication method: publickey
> debug1: Trying private key: /oradata/tmpsprint/.ssh/identity
> debug1: Trying private key: /oradata/tmpsprint/.ssh/id_rsa
> debug1: Offering public key: /oradata/tmpsprint/.ssh/id_dsa
> debug1: Authentications that can continue: publickey,password,keyboard-interactive
> debug1: Next authentication method: keyboard-interactive
> debug1: Authentications that can continue: publickey,password,keyboard-interactive
> debug1: Next authentication method: password
> vgcrdp@cpucrpt1's password:
> debug1: Authentication succeeded (password).
> debug1: channel 0: new [client-session]
> debug1: Entering interactive session.
> Last login: Fri May 2 08:50:25 2008 from 216.83.186.59
> vgcrdp@cpucrpt1:
>
> And here is the output from vgcrdp trying:
> OpenSSH_3.7.1p2, SSH protocols 1.5/2.0, OpenSSL 0.9.7c 30 Sep 2003
> debug1: Reading configuration data /opt/sfw/etc/ssh_config
> debug1: Connecting to cpucrpt1 [10.128.109.37] port 22.
> debug1: Connection established.
> debug1: identity file /export/home/vgcrdp/.ssh/identity type -1
> debug1: identity file /export/home/vgcrdp/.ssh/id_rsa type 1
> debug1: identity file /export/home/vgcrdp/.ssh/id_dsa type -1
> debug1: Remote protocol version 2.0, remote software version OpenSSH_3.7.1p2
> debug1: match: OpenSSH_3.7.1p2 pat OpenSSH*
> debug1: Enabling compatibility mode for protocol 2.0
> debug1: Local version string SSH-2.0-OpenSSH_3.7.1p2
> debug1: SSH2_MSG_KEXINIT sent
> debug1: SSH2_MSG_KEXINIT received
> debug1: kex: server->client aes128-cbc hmac-md5 none
> debug1: kex: client->server aes128-cbc hmac-md5 none
> debug1: SSH2_MSG_KEX_DH_GEX_REQUEST sent
> debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
> debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
> debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
> debug1: Host 'cpucrpt1' is known and matches the RSA host key.
> debug1: Found key in /export/home/vgcrdp/.ssh/known_hosts:1
> debug1: ssh_rsa_verify: signature correct
> debug1: SSH2_MSG_NEWKEYS sent
> debug1: expecting SSH2_MSG_NEWKEYS
> debug1: SSH2_MSG_NEWKEYS received
> debug1: SSH2_MSG_SERVICE_REQUEST sent
> debug1: SSH2_MSG_SERVICE_ACCEPT received
> debug1: Authentications that can continue: publickey,password,keyboard-interactive
> debug1: Next authentication method: publickey
> debug1: Trying private key: /export/home/vgcrdp/.ssh/identity
> debug1: Offering public key: /export/home/vgcrdp/.ssh/id_rsa
> debug1: Authentications that can continue: publickey,password,keyboard-interactive
> debug1: Trying private key: /export/home/vgcrdp/.ssh/id_dsa
> debug1: Next authentication method: keyboard-interactive
> debug1: Authentications that can continue: publickey,password,keyboard-interactive
> debug1: Next authentication method: password
> sprint@cpucrpt1's password:
>
> And, just to make this email a little longer, here is the abbreviated
> output from vgcrdp trying to ssh to vgcesv.
> debug1: SSH2_MSG_NEWKEYS received
> debug1: SSH2_MSG_SERVICE_REQUEST sent
> debug1: SSH2_MSG_SERVICE_ACCEPT received
> debug1: Authentications that can continue: publickey,password,keyboard-interactive
> debug1: Next authentication method: publickey
> debug1: Trying private key: /export/home/vgcrdp/.ssh/identity
> debug1: Offering public key: /export/home/vgcrdp/.ssh/id_rsa
> debug1: Server accepts key: pkalg ssh-rsa blen 149
> debug1: read PEM private key done: type RSA
> debug1: Authentication succeeded (publickey).
> debug1: channel 0: new [client-session]
> debug1: Entering interactive session.
> Last login: Fri May 2 08:50:44 2008 from 10.128.109.37
>
>
>
>
> mark.baker@hxti.com wrote [05/02/08]:
> > Hi Dan,
> >
> > Usually when I see these types of problems it stems from the file
> > permissions on the .ssh directory and key files. I usually start
> > debugging by logging in as one of the users that is having trouble using
> > the keys and trying to Ssh to a server with the -v flag, which will
> > almost always show you the problem right off the bat.
> >
> > Mark
> >
> > > -----Original Message-----
> > > From: Dan Perez [mailto:dperez@sdf.lonestar.org]
> > > Sent: Friday, May 02, 2008 9:53 AM
> > > To: plug@lists.phillylinux.org
> > > Subject: [PLUG] ssh key based authentication
> > >
> > > Hi all,
> > >
> > > I'm having an issue with ssh key based authentication on a solaris
> > > box. I'm trying to set it up so I can login in to numerous userids on
> > > this box without a password. I've created my rsa keys and put my
> > > public keys in the users' authorized_keys files. I can ssh without a
> > > password to some of the users but not all of them and I can't find the
> > > difference with the two sets of users.
> > >
> > > The users that I can't ssh in to without a password are designated ftp
> > > accounts, but I don't see anything that actually makes them ftp
> > > accounts. They still have valid shells and shell access. I don't
> > > think the accounts are locked. The homedirs are in a different
> > > location, /oradata, but the users have full access to their homedirs
> > > and .ssh directories.
> > >
> > > I would really appreciate some pointers as to where to look.
> > > Thanks, dan
> > > _____________________________________________________________________
> > > ______
> > > Philadelphia Linux Users Group --
> > http://www.phillylinux.org
> > > Announcements -
> > http://lists.phillylinux.org/mailman/listinfo/plug-announce
> > > General Discussion --
> > http://lists.phillylinux.org/mailman/listinfo/plug
> >
> >
> > ___________________________________________________________________________
> > Philadelphia Linux Users Group -- http://www.phillylinux.org
> > Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
> > General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug
___________________________________________________________________________
Philadelphia Linux Users Group -- http://www.phillylinux.org
Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce
General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug
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