shell script自动搭建简单的双机ssh认证

xlid

#!/bin/bash
#Shell name:    login_ssh.sh
#
#program:
#    use key-gen to login other pc without password
#Author:pero
#Email:    perofu.com@gmail.com
#
#History:
#    2012/7/21
#
#If you have any opinion please contact me

PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:.
export PATH

SHELL_NAME=$(basename $0)

#Add

if [ "$#" -ne "0" ]
then
    if [ "$#" -ne "2" ]
    then
        echo "Usage:"
        echo "A: ./${SHELL_NAME}"
        echo "B: ./${SHELL_NAME} username ip"
        echo
        exit 77
    else
        user=$1
        ip=$2
        
    fi
else
    read -p "Please input a user name in Server that is you want to ssh:" user
    read -p "Please input IP in Server that is you want to ssh:" ip

fi

#read -p "Please input a user name in Server that is you want to ssh:" user
#read -p "Please input IP in Server that is you want to ssh:" ip


#test prot 22 status

nc -w2 ${ip} 22

if [ "$?" -ne "0" ]
then
    echo "$ip port 22 isn't opening,Please check"
    exit 77
fi

#install openssh

#if [ $user = "root" ]
#then
#    echo "Don't using root to login others PC,It's dangers!!!"
#    exit 77
#fi

soft=$(rpm -qa |grep openssh | wc -l)

if [ $soft -lt 3 ]
then
    yum install *openssh* -y &> /dev/null
fi

#create key

ssh-keygen -t rsa


echo "Please input password to check ssh-server have [~/.ssh/authorized_keys]:"
exist=$(ssh "$user"@"$ip" 'ls -a ~/.ssh/authorized_keys' &> /dev/null )

if [ $? = "0" ]
then
    echo "Please input password twice to add infomation to [~/.ssh/authorized_keys] in ssh-server:"
    scp ~/.ssh/id_rsa.pub "$user"@"$ip":~/authorized_keys &> /dev/null
    ssh "$user"@"$ip" 'cat ~/authorized_keys >> ~/.ssh/authorized_keys; rm -rf ~/authorized_keys'
else
    echo "Please input password twice to add infomation to [~/.ssh/authorized_keys] in ssh-server:"
    ssh "$user"@"$ip" 'mkdir -p ~/.ssh/'
    scp ~/.ssh/id_rsa.pub "$user"@"$ip":~/.ssh/authorized_keys &> /dev/null
fi

0

做爱做的事，交配交的人。

wlyyb521

自从我变成了狗屎,就再也没有人踩在我头上了。

santaclaus

老天，你让夏天和冬天同房了吧？生出这鬼天气!

zzbb

怀揣两块，胸怀500万！

圣凤凌霜

不在放荡中变坏，就在沉默中变态！

yxixi

我妈常说,我们家要是没有电话就不会这么穷。