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I'm attempting to run this simple provisioning script but I'm encountering errors when running vagrant up and then vagrant provision commands.

I read that I needed to create a /etc/ansible/hosts file which I've done, populating it with:

[vagrant]
192.168.222.111

My SSH config (some details removed):

Host default
HostName 127.0.0.1
User vagrant
Port 2222
UserKnownHostsFile /dev/null
StrictHostKeyChecking no
PasswordAuthentication no
IdentityFile /Users/ashleyconnor/.vagrant.d/insecure_private_key
IdentitiesOnly yes
LogLevel FATAL

Host            server
HostName        XXX.XXX.XXX.XXX
User            ash
PreferredAuthentications publickey
IdentityFile    ~/.ssh/ash_ovh

Host            deployer
HostName        XXX.XXX.XXX.XXX
User            deployer
PreferredAuthentications publickey
IdentityFile    ~/.ssh/deployer_ovh

Host            bitbucket.org
PreferredAuthentications publickey
IdentityFile    ~/.ssh/bitbucket

Host            github.com
PreferredAuthentications publickey
IdentityFile    ~/.ssh/github

Host            staging
HostName        192.168.56.10
User            deployer
PreferredAuthentications publickey
IdentityFile    ~/.ssh/id_rsa

The SSH output I'm receiving seems to churn through all my keys:

<192.168.222.111> ESTABLISH CONNECTION FOR USER: vagrant
<192.168.222.111> REMOTE_MODULE setup
<192.168.222.111> EXEC ['ssh', '-C', '-tt', '-vvv', '-o', 'ControlMaster=auto', '-o', 'ControlPersist=60s', '-o', 'ControlPath=/Users/ashleyconnor/.ansible/cp/ansible-ssh-%h-%p-%r', '-o', 'IdentityFile=/Users/ashleyconnor/.vagrant.d/insecure_private_key', '-o', 'KbdInteractiveAuthentication=no', '-o', 'PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey', '-o', 'PasswordAuthentication=no', '-o', 'User=vagrant', '-o', 'ConnectTimeout=10', '192.168.222.111', "/bin/sh -c 'mkdir -p $HOME/.ansible/tmp/ansible-tmp-1394317116.44-226619545527061 && chmod a+rx $HOME/.ansible/tmp/ansible-tmp-1394317116.44-226619545527061 && echo $HOME/.ansible/tmp/ansible-tmp-1394317116.44-226619545527061'"]
fatal: [192.168.222.111] => SSH encountered an unknown error. The output was:
OpenSSH_6.2p2, OSSLShim 0.9.8r 8 Dec 2011
debug1: Reading configuration data /Users/ashleyconnor/.ssh/config
debug1: Reading configuration data /etc/ssh_config
debug1: /etc/ssh_config line 20: Applying options for *
debug1: /etc/ssh_config line 53: Applying options for *
debug1: auto-mux: Trying existing master
debug1: Control socket "/Users/ashleyconnor/.ansible/cp/ansible-ssh-192.168.222.111-22-vagrant" does not exist
debug2: ssh_connect: needpriv 0
debug1: Connecting to 192.168.222.111 [192.168.222.111] port 22.
debug2: fd 3 setting O_NONBLOCK
debug1: fd 3 clearing O_NONBLOCK
debug1: Connection established.
debug3: timeout: 10000 ms remain after connect
debug3: Incorrect RSA1 identifier
debug3: Could not load "/Users/ashleyconnor/.vagrant.d/insecure_private_key" as a RSA1 public key
debug1: identity file /Users/ashleyconnor/.vagrant.d/insecure_private_key type -1
debug1: identity file /Users/ashleyconnor/.vagrant.d/insecure_private_key-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.2
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.9p1 Debian-5ubuntu1
debug1: match: OpenSSH_5.9p1 Debian-5ubuntu1 pat OpenSSH_5*
debug2: fd 3 setting O_NONBLOCK
debug3: load_hostkeys: loading entries for host "192.168.222.111" from file "/Users/ashleyconnor/.ssh/known_hosts"
debug3: load_hostkeys: found key type RSA in file /Users/ashleyconnor/.ssh/known_hosts:20
debug3: load_hostkeys: loaded 1 keys
debug3: order_hostkeyalgs: prefer hostkeyalgs: ssh-rsa-cert-v01@openssh.com,ssh-rsa-cert-v00@openssh.com,ssh-rsa
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@openssh.com,ssh-rsa-cert-v00@openssh.com,ssh-rsa,ssh-dss-cert-v01@openssh.com,ssh-dss-cert-v00@openssh.com,ssh-dss
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit: hmac-md5-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,hmac-md5-96-etm@openssh.com,hmac-md5,hmac-sha1,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-ripemd160-etm@openssh.com,hmac-sha1-96-etm@openssh.com,hmac-md5-96-etm@openssh.com,hmac-md5,hmac-sha1,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: zlib@openssh.com,zlib,none
debug2: kex_parse_kexinit: zlib@openssh.com,zlib,none
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: 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-sha1
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256
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@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@lysator.liu.se
debug2: 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-md5-96
debug2: 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-md5-96
debug2: kex_parse_kexinit: none,zlib@openssh.com
debug2: kex_parse_kexinit: none,zlib@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 zlib@openssh.com
debug2: mac_setup: found hmac-md5
debug1: kex: client->server aes128-ctr hmac-md5 zlib@openssh.com
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: 119/256
debug2: bits set: 527/1024
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Server host key: RSA 50:db:75:ba:11:2f:43:c9:ab:14:40:6d:7f:a1:ee:e3
debug3: load_hostkeys: loading entries for host "192.168.222.111" from file "/Users/ashleyconnor/.ssh/known_hosts"
debug3: load_hostkeys: found key type RSA in file /Users/ashleyconnor/.ssh/known_hosts:20
debug3: load_hostkeys: loaded 1 keys
debug1: Host '192.168.222.111' is known and matches the RSA host key.
debug1: Found key in /Users/ashleyconnor/.ssh/known_hosts:20
debug2: bits set: 511/1024
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: /Users/ashleyconnor/.ssh/id_rsa (0x7fc212600540),
debug2: key: /Users/ashleyconnor/.ssh/bitbucket (0x7fc212600730),
debug2: key: /Users/ashleyconnor/.ssh/deployer (0x7fc212600a00),
debug2: key: /Users/ashleyconnor/.ssh/github (0x7fc212600c80),
debug2: key: /Users/ashleyconnor/.ssh/ash_ovh (0x7fc212601010),
debug2: key: /Users/ashleyconnor/.ssh/deployer_ovh (0x7fc2126011e0),
debug2: key: /Users/ashleyconnor/.vagrant.d/insecure_private_key (0x0), explicit
debug1: Authentications that can continue: publickey,password
debug3: start over, passed a different list publickey,password
debug3: preferred gssapi-with-mic,gssapi-keyex,hostbased,publickey
debug3: authmethod_lookup publickey
debug3: remaining preferred: ,gssapi-keyex,hostbased,publickey
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /Users/ashleyconnor/.ssh/id_rsa
debug3: send_pubkey_test
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,password
debug1: Offering RSA public key: /Users/ashleyconnor/.ssh/bitbucket
debug3: send_pubkey_test
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,password
debug1: Offering RSA public key: /Users/ashleyconnor/.ssh/deployer
debug3: send_pubkey_test
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,password
debug1: Offering RSA public key: /Users/ashleyconnor/.ssh/github
debug3: send_pubkey_test
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,password
debug1: Offering RSA public key: /Users/ashleyconnor/.ssh/ash_ovh
debug3: send_pubkey_test
debug2: we sent a publickey packet, wait for reply
debug1: Authentications that can continue: publickey,password
debug1: Offering RSA public key: /Users/ashleyconnor/.ssh/deployer_ovh
debug3: send_pubkey_test
debug2: we sent a publickey packet, wait for reply
Received disconnect from 192.168.222.111: 2: Too many authentication failures for vagrant

The vagrant ssh command works fine.

share|improve this question
    
Possible Duplicate: serverfault.com/questions/139870/… –  Henk Langeveld Aug 19 at 11:36
    
Slightly different. Vagrant injects it's key when you run vagrant ssh and this question involved only keyless authentication. –  Ash Aug 19 at 13:11

5 Answers 5

up vote 3 down vote accepted

According to ssh-config(5), ssh will always try all keys known by the agent in addition to any Identity Files:

 IdentitiesOnly
         Specifies that ssh(1) should only use the authentication identity files config‐
         ured in the ssh_config files, even if ssh-agent(1) offers more identities.  The
         argument to this keyword must be “yes” or “no”.  This option is intended for
         situations where ssh-agent offers many different identities.  The default is
         “no”.

 IdentityFile
         Specifies a file from which the user's DSA, ECDSA or DSA authentication iden‐
         tity is read.  The default is ~/.ssh/identity for protocol version 1, and
         ~/.ssh/id_dsa, ~/.ssh/id_ecdsa and ~/.ssh/id_rsa for protocol version 2.  Addi‐
         tionally, any identities represented by the authentication agent will be used
         for authentication.  ssh(1) will try to load certificate information from the
         filename obtained by appending -cert.pub to the path of a specified
         IdentityFile.

To prevent this, one must specify IdentitiesOnly=yes in addition to the explicitly provided private key.

For example, running the ssh command below:

$ ssh -i /home/henk/.vagrant.d/insecure_private_key \
  vagrant@192.168.222.111 echo ok

produces:

Received disconnect from 192.168.222.111: 2: Too many authentication 
failures for vagrant

However, running the same ssh command and, in addition, specifying IdentitiesOnly=yes:

$ ssh -o IdentitiesOnly=yes \
  -i /home/henk/.vagrant.d/insecure_private_key vagrant@192.168.222.111 echo ok

produces:

ok
share|improve this answer
    
Edit: Removed incorrect assumption about needing to add the vagrant key to the agent. This reduces the answer to its essence. Let's see if we can find a duplicate... –  Henk Langeveld Mar 9 at 19:50

Key message is

Received disconnect from 192.168.222.111: 2: 
    Too many authentication failures for vagrant

You copied the vagrant ssh-config output as the default host into .ssh/config but this is skipped because it has conflicting parameters (hostname, port). With no matching entry, ssh will just try all the keys it can find.

Test the ssh attempt again with the -i option

$ ssh -i $HOME/.vagrant.d/insecure_private_key vagrant@192.168.222.111 echo ok

I believe this is how you'd specify this in the Ansible Inventory:

[vagrant]
192.168.222.111 ansible_ssh_private_key_file=/.../.vagrant.d/insecure_private_key

Abbreviated the path for readability


Original answer:

Compare the output of vagrant ssh-config with the vagrant entry in your .ssh/config. Make sure the private key path is an exact match.

Also verify that the keyfile cannot be accessed by any other accounts. We all know what that key is, but SSH doesn't know this thing is public knowledge, and tries to protect us from using keys that may be compromised.

share|improve this answer
    
I originally copied the config from vagrant ssh-config but I checked again and it's identical. I can also cat /Users/ashleyconnor/.vagrant.d/insecure_private_key and have adequate permissions. –  Ash Mar 9 at 8:47
    
Make sure noone else can read or write the file. –  Henk Langeveld Mar 9 at 9:39
1  
Only I have rw permissions. No luck on the other suggestions, I tried running ssh -i $HOME/.vagrant.d/insecure_private_key -l vagrant 192.168.222.111 still getting Received disconnect from 192.168.123.123: 2: Too many authentication failures for vagrant –  Ash Mar 9 at 10:01
    
Does the remote host have a user vagrant? –  Henk Langeveld Mar 9 at 10:12
    
Yes. When I run vagrant ssh it connects as user vagrant –  Ash Mar 9 at 10:20

So I had 5 keys in my ssh-agent and despite the explicit option of using the vagrant ssh key it still insisted on looping through keys in my agent before reaching max_tries conveniently before getting to the right key.

To check you have this problem: Run ssh-add -l - if this list is > 5 you need to remove keys or disable the agent.

To fix: Run ssh-add -d ~/.ssh/X where X is the key you want to remove.

share|improve this answer
    
After installing the mazer-rackham repo and with this information I could reproduce your problem and I've added an alternative: Make sure that the vagrant key is known by the agent. –  Henk Langeveld Mar 9 at 18:34
    
I added it to the agent but still had to remove keys. Maybe the order you add to the agent matters? EDIT: Just read your edit. –  Ash Mar 9 at 19:03
    
I have the same problem, but I don't understand how you fixed this? I cannot remove any of the keys from my ~/.ssh/ folder, I need then –  rubo77 Aug 11 at 12:01
    
You are not removing the keys from your ~.ssh folder - you are removing the keys from the ssh-agent daemon. You can always add them back later. See here for more info. –  Ash Aug 11 at 13:06

After I tried all advises here without success, I recognized that my problem was the new authentication method (GSSAPI), which was always unsuccessful.

I solved this by editing ~/.ssh/config file:

Host *
  GSSAPIAuthentication no

Hope this helps somebody too.

share|improve this answer

Your ssh-agent holds more keys than the ssh server allows authentication attempts ("MaxAuthTries", default: 6).

Note that some ssh-agents, in particular the GNOME Keyring, autoload all keys they find in ~/.ssh, and that these keys cannot be unloaded with "ssh-add -[dD]".

Here are some solutions:

  • You have configured the correct key in your ~/.ssh/config already, so you don't need the agent. Make the client ignore the agent, e.g. unset SSH_AUTH_SOCK or use "IdentitiesOnly=yes" as @henk-langeveld suggested
  • Move some keys out of ~/.ssh (a subdir like ~/.ssh/noauto works too) to prevent them from getting auto-loaded. You can still ssh-add them manually if you need them.
  • Increase "MaxAuthTries" on the server side, the number of allowed authentication attempts
share|improve this answer

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