�h���C�����擾(�Ǝ��h���C����)

�ŏI�X�V���F 2022.10.12

[root@centos ~]# vi /usr/local/bin/valuedomain-ddns-update.sh�@���@VALUE DOMAIN�pIP�A�h���X�X�V�X�N���v�g�쐬
#!/bin/bash

SCRIPT=${0}
DOMAIN=${1}
PASS=${2}
HOST=${3}
if [ "${HOST}" = "" ]; then
    FQDN=${DOMAIN}
else
    FQDN="${HOST}.${DOMAIN}"
fi

# VALUE-DOMAIN�ݒ�IP�A�h���X�擾
IPGETLOG=`host ${FQDN} ns1.value-domain.com 2>&1`
VDIP=`echo "${IPGETLOG}"|grep "has address"|awk '{ print $NF }'|egrep ^[0-9]\+\.[0-9]\+\.[0-9]\+\.[0-9]\+$`
if [ $? -ne 0 ]; then
    echo "${FQDN} VALUE-DOMAIN�ݒ�IP�A�h���X���o�G���[" | logger -t $(basename $0)
    echo ${IPGETLOG} | logger -t $(basename $0)
    exit
fi

# ����IP�A�h���X�擾
IPGETLOG=`curl inet-ip.info 2>&1`
echo "${IPGETLOG}" | egrep ^[0-9]\+\.[0-9]\+\.[0-9]\+\.[0-9]\+$ > /dev/null 2>&1
if [ $? -eq 0 ]; then
    CURRENTIP=`echo "${IPGETLOG}" | tail -n 1 | awk '{ print $NF }'`
else
    echo "${DOMAIN} ����IP�A�h���X���o�G���[" | logger -t $(basename $0)
    echo "${IPGETLOG}" | logger -t $(basename $0)
    exit
fi

# VALUE-DOMAIN�ݒ�IP�A�h���X�X�V
# (VALUE-DOMAIN�ݒ�IP�A�h���X������IP�A�h���X�̏ꍇ�̂�)
if [ "${VDIP}" != "${CURRENTIP}" ]; then
    IPUPDATE=`wget -q -O - "http://dyn.value-domain.com/cgi-bin/dyn.fcg?d=${DOMAIN}&p=${PASS}&h=${HOST}&i=${CURRENTIP}"`
    echo ${IPUPDATE}|grep -q OK
    if [ $? -eq 0 ]; then
        echo "${FQDN} IP�A�h���X�X�V���� ${VDIP} to ${CURRENTIP}" | logger -t $(basename $0)
    else
        echo "${FQDN} IP�A�h���X�X�V�G���[" | logger -t $(basename $0)
        echo ${IPUPDATE} | logger -t $(basename $0)
        (
        echo IP ADDRESS UPDATE ERROR
        echo ${IPUPDATE}
        )|mail -s "${SCRIPT##*/} ERROR on ${FQDN}" root
        exit 1
    fi
fi
exit


[root@centos ~]# chmod +x /usr/local/bin/valuedomain-ddns-update.sh�@���@VALUE DOMAIN�pIP�A�h���X�X�V�X�N���v�g�֎��s�����t��

[root@centos ~]# /usr/local/bin/valuedomain-ddns-update.sh centossrv.com �p�X���[�h�@���@VALUE DOMAIN�pIP�A�h���X�X�V�X�N���v�g���s(centossrv.com�p)

[root@centos ~]# /usr/local/bin/valuedomain-ddns-update.sh centossrv.com �p�X���[�h "www"�@���@VALUE DOMAIN�pIP�A�h���X�X�V�X�N���v�g���s(www.centossrv.com�p)

[root@centos ~]# /usr/local/bin/valuedomain-ddns-update.sh centossrv.com �p�X���[�h "mail"�@���@VALUE DOMAIN�pIP�A�h���X�X�V�X�N���v�g���s(mail.centossrv.com�p)

[root@centos ~]# /usr/local/bin/valuedomain-ddns-update.sh centossrv.com �p�X���[�h "ftp"�@���@VALUE DOMAIN�pIP�A�h���X�X�V�X�N���v�g���s(ftp.centossrv.com�p)

���p�X���[�h�́u�i�P�jVALUE DOMAIN�̃_�C�i�~�b�NDNS�@�\��L�����v�Őݒ肵���u�h���C���p�X���[�h�v���w��
��IP�A�h���X�X�V���ʂ�/var/log/messages�ɕۑ������

[root@centos ~]# vi /etc/cron.d/valuedomain-ddns-update�@���@VALUE DOMAIN�pIP�A�h���X�X�V����������s�ݒ�t�@�C���쐬
*/10 * * * * root /usr/local/bin/valuedomain-ddns-update.sh centossrv.com �p�X���[�h
��10������VALUE DOMAIN�pIP�A�h���X�X�V�X�N���v�g�����s����(centossrv.com�p)
*/10 * * * * root /usr/local/bin/valuedomain-ddns-update.sh centossrv.com �p�X���[�h "www"
��10������VALUE DOMAIN�pIP�A�h���X�X�V�X�N���v�g�����s����(www.centossrv.com�p)
*/10 * * * * root /usr/local/bin/valuedomain-ddns-update.sh centossrv.com �p�X���[�h "mail"
��10������VALUE DOMAIN�pIP�A�h���X�X�V�X�N���v�g�����s����(mail.centossrv.com�p)
*/10 * * * * root /usr/local/bin/valuedomain-ddns-update.sh centossrv.com �p�X���[�h "ftp"
��10������VALUE DOMAIN�pIP�A�h���X�X�V�X�N���v�g�����s����(ftp.centossrv.com�p)