ssh代理登录内网服务器

服务器

192.168.48.81 # client
192.168.48.82 # bastion
192.168.48.83 # private

password方式

192.168.48.81

groupadd -g 501 ansible
useradd -u 501 -g 501 ansible
passwd ansible # @ansible

192.168.48.82

groupadd -g 501 ansible
useradd -u 501 -g 501 ansible
passwd ansible # @ansible

groupadd -g 502 bastion
useradd -u 502 -g 502 bastion
passwd bastion # @bastion 

192.168.48.83

groupadd -g 502 bastion
useradd -u 502 -g 502 bastion
passwd bastion # @bastion 

192.168.48.81 -> 192.168.48.83

ssh -o ProxyCommand='ssh -W %h:%p [email protected]' [email protected]
[email protected]'s password: 
[email protected]'s password: 
Last login: Fri Jan 23 10:59:07 2015 from 192.168.48.82
......

sshkey方式

192.168.48.81

su - ansible -c "ssh-keygen -b 2048 -t rsa -f ~/.ssh/ansible.pem -q -N ''"
# /home/ansible/.ssh
ansible.pem  ansible.pem.pub

192.168.48.82

su - bastion -c "ssh-keygen -b 2048 -t rsa -f ~/.ssh/bastion82.pem -q -N ''"
# /home/bastion/.ssh/
bastion82.pem  bastion82.pem.pub

192.168.48.81 -> 192.168.48.82 sshkey

su - ansible
ssh-copy-id -i .ssh/ansible.pem.pub '-o StrictHostKeyChecking=no 192.168.48.82'
# 测试
ssh -i .ssh/ansible.pem 192.168.48.82

192.168.48.82 -> 192.168.48.83 sshkey

su - bastion
ssh-copy-id -i .ssh/bastion82.pem.pub '-o StrictHostKeyChecking=no 192.168.48.83'
# 测试
ssh -i .ssh/bastion82.pem 192.168.48.83

ssh.config方式

192.168.48.81

mkdir -p /etc/ansible/keys
cp ansible.pem, ansible.pem.pub, bastion82.pem, bastion82.pem.pub -> /etc/ansible/keys

192.168.48.81 remove /home/ansible/.ssh/{ansible.pem, ansible.pem.pub}
192.168.48.82 remove /home/ansible/.ssh/{ansible.pem, ansible.pem.pub}, /home/bastion/.ssh/{bastion82.pem, bastion82.pem.pub}
192.168.48.83 remove /home/bastion/.ssh/{bastion82.pem, bastion82.pem.pub}

# /etc/ansible/ssh.config
Host bastion-82
    User            ansible
    Hostname        192.168.48.82
    IdentityFile    /etc/ansible/keys/ansible.pem

Host server-83
    User            bastion
    Hostname        192.168.48.83
    IdentityFile    /etc/ansible/keys/bastion82.pem
    ProxyCommand    ssh -q -A -x -i /etc/ansible/keys/ansible.pem -l ansible bastion-82 -W %h:%p

[root@bjyh-48-81 ~]# ssh -F /etc/ansible/ssh.config bastion-82
Last login: Fri Jan 23 17:06:32 2015 from 192.168.48.81
[ansible@bjyh-48-82 ~]$ 

[root@bjyh-48-81 ~]# ssh -F /etc/ansible/ssh.config server-83
Last login: Fri Jan 23 17:08:41 2015 from 192.168.48.82
[bastion@bjyh-48-83 ~]$