apache - Apache/2.2.15 (Unix) で ServerName を使用して仮想ホストにアクセスできない

Question

私のvhost.conf

NameVirtualHost 111.111.111.111:80

<VirtualHost 111.111.111.111:80>
  DocumentRoot /var/www/vhosts/blog.xxx.jp/wordpress
  ServerName blog.xxx.jp

  AddOutputFilterByType DEFLATE text/html text/plain text/xml application/javascript text/css application/json
  LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" \"%{cookie}i\" \"%{Set-cookie}o\"" cookie
  CustomLog "|/usr/sbin/cronolog -S /var/www/vhosts/blog.xxx.jp/statistics/logs/access_log-last /var/www/vhosts/blog.xxx.jp/statistics/logs/access_log-%Y-%U" cookie
  ErrorLog  "|/usr/sbin/cronolog -S /var/www/vhosts/blog.xxx.jp/statistics/logs/error_log-last /var/www/vhosts/blog.xxx.jp/statistics/logs/error_log-%Y-%U"

  <Directory /var/www/vhosts/blog.xxx.jp/wordpress>
    AllowOverride All
    Order allow,deny
    Allow from all
  </Directory>
</VirtualHost>

<VirtualHost 111.111.111.111:80>
  DocumentRoot /var/www/vhosts/shop.xxx.jp/eccube-2.12.2/html
  ServerName shop.xxx.jp
  AddOutputFilterByType DEFLATE text/html text/plain text/xml application/javascript text/css application/json
  LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" \"%{cookie}i\" \"%{Set-cookie}o\"" cookie
  CustomLog "|/usr/sbin/cronolog -S /var/www/vhosts/shop.xxx.jp/statistics/logs/access_log-last /var/www/vhosts/shop.xxx.jp/statistics/logs/access_log-%Y-%U" cookie
  ErrorLog  "|/usr/sbin/cronolog -S /var/www/vhosts/shop.xxx.jp/statistics/logs/error_log-last /var/www/vhosts/shop.xxx.jp/statistics/logs/error_log-%Y-%U"

  <Directory /var/www/vhosts/shop.xxx.jp/eccube-2.12.2/html>
    AllowOverride All
    Order allow,deny
    Allow from all
  </Directory>
</VirtualHost>

サーバーのバージョン: Apache/2.2.15 (Unix) サーバーのビルド: 2013 年 2 月 22 日 11:19:58

shop.xxx.jpにはアクセスできるのですが、blog.xxx.jpにはアクセスできません（pingが通っていません）。どんな助けでも大歓迎です。

2番目の部分を削除しようとしましたが、vhost.confの開始は次のようになります ⬇</p>

NameVirtualHost 111.111.111.111:80

<VirtualHost 111.111.111.111:80>
  DocumentRoot /var/www/vhosts/blog.xxx.jp/wordpress
  ServerName blog.xxx.jp

  AddOutputFilterByType DEFLATE text/html text/plain text/xml application/javascript text/css application/json
  LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" \"%{cookie}i\" \"%{Set-cookie}o\"" cookie
  CustomLog "|/usr/sbin/cronolog -S /var/www/vhosts/blog.xxx.jp/statistics/logs/access_log-last /var/www/vhosts/blog.xxx.jp/statistics/logs/access_log-%Y-%U" cookie
  ErrorLog  "|/usr/sbin/cronolog -S /var/www/vhosts/blog.xxx.jp/statistics/logs/error_log-last /var/www/vhosts/blog.xxx.jp/statistics/logs/error_log-%Y-%U"

  <Directory /var/www/vhosts/blog.xxx.jp/wordpress>
    AllowOverride All
    Order allow,deny
    Allow from all
  </Directory>
</VirtualHost>

& このURLでWordpressのサイトが動き始めます -> shop.xxx.jp たぶん、ヒントか何かになるでしょう:)

UPDATE I run -> dig blog.xxx.jp

; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6_3.6 <<>> blog.salaf.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 19121
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;blog.xxx.jp.           IN  A

;; AUTHORITY SECTION:
xxx.jp.     10674   IN  SOA ns36.joeswebhosting.net. support-    tech.joeswebhosting.net. 2013032104 86400 7200 3600000 86400

;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Apr  9 10:45:56 2013
;; MSG SIZE  rcvd: 103