UbuntuにSSHでログインした際、 Using username "vagrant". Authenticating with public key "imported-openssh-key" from agent Welcome to Ubuntu 14.04.2 LTS (GNU/Linux 3.13.0-55-generic x86_64) * Documentation: https://help.ubuntu.com/ System information as of Fri Jul 17 15:30:29 JST 2015 System load: 0.0 Users logged in: 1 Usage of /: 5.1% of 39.34GB IP address for eth0: 10.0.2.15 Memory usage: 4% IP address for