title: Unable to ssh using git config file
body: <p>I know its been asked so many times but i couldn't get answers for my problem.
  I am trying to ssh to system using config file. 
  Config file is</p>
  
  <pre><code>Host qa
      HostName 10.218.70.345
      User user
      IdentityFile C:/Users/bean/.ssh/id_rsa.pub
      Port 22
  </code></pre>
  
  <p>When i run the below command</p>
  
  <pre><code>$ ssh -v qa
  OpenSSH_8.0p1, OpenSSL 1.1.1c  28 May 2019
  debug1: Reading configuration data /c/Users/bean/.ssh/config
  debug1: /c/Users/bean/.ssh/config line 1: Applying options for qa1
  debug1: Reading configuration data /etc/ssh/ssh_config
  debug1: Connecting to 10.218.70.345 [10.218.70.345] port 22.
  debug1: Connection established.
  debug1: identity file C:/Users/bean/.ssh/id_rsa.pub type 0
  debug1: identity file C:/Users/bean/.ssh/id_rsa.pub-cert type -1
  debug1: Local version string SSH-2.0-OpenSSH_8.0
  debug1: Remote protocol version 2.0, remote software version OpenSSH_6.6.1
  debug1: match: OpenSSH_6.6.1 pat OpenSSH_6.6.1* compat 0x04000002
  debug1: Authenticating to 10.218.70.345:22 as 'user'
  debug1: SSH2_MSG_KEXINIT sent
  debug1: SSH2_MSG_KEXINIT received
  debug1: kex: algorithm: curve25519-sha256@libssh.org
  debug1: kex: host key algorithm: ecdsa-sha2-nistp256
  debug1: kex: server-&gt;client cipher: aes128-ctr MAC: hmac-sha1 compression: none
  debug1: kex: client-&gt;server cipher: aes128-ctr MAC: hmac-sha1 compression: none
  debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
  debug1: Server host key: ecdsa-sha2-nistp256     SHA256:CWRMF3n1hQRu6ahabqm/0Ge1KOip6oe/xfJkOUDfRbQ
  debug1: Host '10.218.70.345' is known and matches the ECDSA host key.
  debug1: Found key in /c/Users/bean/.ssh/known_hosts:10
  debug1: rekey out after 4294967296 blocks
  debug1: SSH2_MSG_NEWKEYS sent
  debug1: expecting SSH2_MSG_NEWKEYS
  debug1: SSH2_MSG_NEWKEYS received
  debug1: rekey in after 4294967296 blocks
  debug1: Will attempt key: C:/Users/bean/.ssh/id_rsa.pub RSA SHA256:Eb8q2RnFhk+geYicdXwjx/8OqHFsf7qJf7QaTbaGs94 explicit
  debug1: SSH2_MSG_SERVICE_ACCEPT received
  debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
  debug1: Next authentication method: publickey
  debug1: Offering public key: C:/Users/bean/.ssh/id_rsa.pub RSA SHA256:Eb8q2RnFhk+geYicdXwjx/8OqHFsf7qJf7QaTbaGs94 explicit
  debug1: Server accepts key: C:/Users/bean/.ssh/id_rsa.pub RSA SHA256:Eb8q2RnFhk+geYicdXwjx/8OqHFsf7qJf7QaTbaGs94 explicit
  Load key "C:/Users/bean/.ssh/id_rsa.pub": invalid format
  debug1: Next authentication method: password
  user@10.218.70.345's password:
  </code></pre>
  
  <p>Tried giving access to the files but none of them worked. </p>
  
  <p>But the strange thing is when i do <code>ssh user@&lt;ip_address&gt;</code>
  it works perfectly.
  Can someone tell where and what is going wrong</p>