Trying to get SSH agent forwarding working for a popular open source configuration management system called Ansible. I?ve had some unexpected behaviour, the only cause of which I can find is how I express the command line arguments. http://stackoverflow.com/questions/20952689/vagrant-ssh-agent-forwarding-how-is-it-working?noredirect=1#comment31511341_20952689 In summarise: In the first instance I can create a SSH connection, and and execute a remote git clone (via SSH), the Agent Forwarding works, and I am not prompted for credentials: ssh vagrant at 127.0.0.1 -p 2222 \ -o Compression=yes \ -o StrictHostKeyChecking=no \ -o LogLevel=FATAL \ -o StrictHostKeyChecking=no \ -o UserKnownHostsFile=/dev/null \ -o IdentitiesOnly=yes \ -i /Users/bryanhunt/.vagrant.d/insecure_private_key \ -o ForwardAgent=yes \ "/bin/sh -c 'git clone git at bitbucket.org:bryan_picsolve/poc_docker.git /home/vagrant/poc_dockera' " Cloning into '/home/vagrant/poc_dockera'... In the second instance I express the arguments differently ( -o HostName=127.0.0.1 -o User=vagrant ), and Agent Forwarding doesn?t seem to work: ssh -o HostName=127.0.0.1 -o User=vagrant -p 2222 \ -o Compression=yes \ -o StrictHostKeyChecking=no \ -o LogLevel=FATAL \ -o StrictHostKeyChecking=no \ -o UserKnownHostsFile=/dev/null \ -o IdentitiesOnly=yes \ -i /Users/bryanhunt/.vagrant.d/insecure_private_key \ -o ForwardAgent=yes \ "/bin/sh -c 'git clone git at bitbucket.org:bryan_picsolve/poc_docker.git /home/vagrant/poc_dockerb' " /bin/sh -c 'git clone git at 127.0.0.1's password: The client side SSH is: OpenSSH_6.2p2, OSSLShim 0.9.8r 8 Dec 2011 The server side SSH is: OpenSSH_5.9p1 Debian-5ubuntu1.1, OpenSSL 1.0.1 14 Mar 2012 Have any of the list members got an insight into this behaviour ? Thanks in advance, Bryan Hunt
