好用的CloudStack改密碼腳本..

By hack520 on

網上找了很多不太好用啊……使用前請yum install dhclient..

#!/bin/bash
#
# Init file for Password Download Client
#
# chkconfig: 345 98 02
# description: Password Download Client

# Modify this line to specify the user (default is root)
user=root

# Add your DHCP lease folders here
DHCP_FOLDERS="/var/lib/dhclient/* /var/lib/dhcp3/*"
password_received=0
file_count=0
error_count=0

for DHCP_FILE in $DHCP_FOLDERS
do
        if [ -f $DHCP_FILE ]
        then
                file_count=$((file_count+1))
                PASSWORD_SERVER_IP=$(grep dhcp-server-identifier $DHCP_FILE | tail -1 | awk '{print $NF}' | tr -d '\;')

                if [ -n $PASSWORD_SERVER_IP ]
                then
                        logger -t "cloud" "Found password server IP $PASSWORD_SERVER_IP in $DHCP_FILE"
                        logger -t "cloud" "Sending request to password server at $PASSWORD_SERVER_IP"
                        password=$(wget -q -t 3 -T 20 -O - --header "DomU_Request: send_my_password" $PASSWORD_SERVER_IP:8080)
                        password=$(echo $password | tr -d '\r')

                        if [ $? -eq 0 ]
                        then
                                logger -t "cloud" "Got response from server at $PASSWORD_SERVER_IP"

                                case $password in

                                "")                                     logger -t "cloud" "Password server at $PASSWORD_SERVER_IP did not have any password for the VM"
                                                                        continue
                                                                        ;;

                                "bad_request")          logger -t "cloud" "VM sent an invalid request to password server at $PASSWORD_SERVER_IP"
                                                                        error_count=$((error_count+1))
                                                                        continue
                                                                        ;;

                                "saved_password")       logger -t "cloud" "VM has already saved a password from the password server at $PASSWORD_SERVER_IP"
                                                                        continue
                                                                        ;;

                                *)                                      logger -t "cloud" "VM got a valid password from server at $PASSWORD_SERVER_IP"
                                                                        password_received=1
                                                                        break
                                                                        ;;

                                esac
                        else
                                logger -t "cloud" "Failed to send request to password server at $PASSWORD_SERVER_IP"
                                error_count=$((error_count+1))
                        fi
                else
                        logger -t "cloud" "Could not find password server IP in $DHCP_FILE"
                        error_count=$((error_count+1))
                fi
        fi
done

if [ "$password_received" == "0" ]
then
        if [ "$error_count" == "$file_count" ]
        then
                logger -t "cloud" "Failed to get password from any server"
                exit 1
        else
                logger -t "cloud" "Did not need to change password."
                exit 0
        fi
fi

logger -t "cloud" "Changing password ..."
echo $password | passwd --stdin $user

if [ $? -gt 0 ]
then
        usermod -p `mkpasswd -m SHA-512 $password` $user

        if [ $? -gt 0 ]
        then
                logger -t "cloud" "Failed to change password for user $user"
                exit 1
        else
                logger -t "cloud" "Successfully changed password for user $user"
        fi
fi

logger -t "cloud" "Sending acknowledgment to password server at $PASSWORD_SERVER_IP"
wget -t 3 -T 20 -O - --header "DomU_Request: saved_password" $PASSWORD_SERVER_IP:8080
exit 0

 

作者:hack520

文章链接:好用的CloudStack改密碼腳本..

短连接:https://zhu.vn/?p=1380

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