在比较 Intel Xeon E5 和 E7 处理器时，我注意到 E5 处理器指定用于 2S 或 4S 可扩展性，而 E7 处理器指定用于S 2S、S 4S 或S 8S 可扩展性。
我知道处理器被指定用于同一主板上给定数量的插槽，但额外的 S 实际意味着什么？2S和S2S、4S和S4S有什么区别？
在涉及将 Apache 从 2.2 更新到 2.4 的操作系统升级后，我现在尝试访问http://files.fierydragonlord.com/和http://status.fierydragonlord.com/时遇到 403 。但是，http://www.fierydragonlord.com有效。这是怎么回事？
以下是我的 vhosts.conf：
#
# VirtualHost template
# Note: to use the template, rename it to /etc/apache2/vhost.d/yourvhost.conf.
# Files must have the .conf suffix to be loaded.
#
# See /usr/share/doc/packages/apache2/README.QUICKSTART for further hints
# about virtual hosts.
#
# NameVirtualHost statements can be added to /etc/apache2/listen.conf.
#
# Almost any Apache directive may go into a VirtualHost container.
# The first VirtualHost section is used for requests without a known
# server name.
#
NameVirtualHost *:80
<VirtualHost *:80>
ServerName www.fierydragonlord.com
# Specify alternative domain names for the virtual host like this
# (wildcards * and ? may be used, and multiple aliases may be specified):
# ServerAlias domain.tld extra.domain.tld *.domain.tld
# DocumentRoot: The directory out of which you will serve your
# documents. By default, all requests are taken from this directory, but
# symbolic links and aliases may be used to point to other locations.
DocumentRoot /srv/www/htdocs/
# Set log file location
ErrorLog /var/log/apache2/error_log
CustomLog /var/log/apache2/access_log combined
# don't loose time with IP address lookups
HostnameLookups Off
# needed for named virtual hosts
UseCanonicalName Off
# configures the footer on server-generated documents
ServerSignature On
# Use custom error documents
ErrorDocument 400 /00-Error/400.php
ErrorDocument 401 /00-Error/401.php
ErrorDocument 403 /00-Error/403.php
ErrorDocument 404 /00-Error/404.php
ErrorDocument 410 /00-Error/410.php
ErrorDocument 414 /00-Error/414.php
ErrorDocument 500 /00-Error/500.php
ErrorDocument 503 /00-Error/503.php
</VirtualHost>
<VirtualHost *:80>
ServerName status.fierydragonlord.com
# Specify alternative domain names for the virtual host like this
# (wildcards * and ? may be used, and multiple aliases may be specified):
# ServerAlias domain.tld extra.domain.tld *.domain.tld
# DocumentRoot: The directory out of which you will serve your
# documents. By default, all requests are taken from this directory, but
# symbolic links and aliases may be used to point to other locations.
DocumentRoot /srv/www/vhosts/status/
DirectoryIndex index.php
# Set log file location
ErrorLog /var/log/apache2/status-error_log
CustomLog /var/log/apache2/status-access_log combined
# don't loose time with IP address lookups
HostnameLookups Off
# needed for named virtual hosts
UseCanonicalName Off
# configures the footer on server-generated documents
ServerSignature On
<Directory />
Options None
Require all granted
</Directory>
# use .htaccess files for overriding,
AccessFileName .htaccess
# and never show them
<Files ~ "^\.ht">
Require all denied
</Files>
</VirtualHost>
<VirtualHost *:80>
ServerName files.fierydragonlord.com
# Specify alternative domain names for the virtual host like this
# (wildcards * and ? may be used, and multiple aliases may be specified):
# ServerAlias domain.tld extra.domain.tld *.domain.tld
# DocumentRoot: The directory out of which you will serve your
# documents. By default, all requests are taken from this directory, but
# symbolic links and aliases may be used to point to other locations.
DocumentRoot /srv/www/vhosts/files/
DirectoryIndex index.html
# Set log file location
ErrorLog /var/log/apache2/files-error_log
CustomLog /var/log/apache2/files-access_log combined
# don't loose time with IP address lookups
HostnameLookups Off
# needed for named virtual hosts
UseCanonicalName Off
# configures the footer on server-generated documents
ServerSignature On
<Directory />
Options None
Require all granted
</Directory>
# use .htaccess files for overriding,
AccessFileName .htaccess
# and never show them
<Files ~ "^\.ht">
Require all denied
</Files>
# Use custom error documents
ErrorDocument 400 /00-Error/400.php
ErrorDocument 401 /00-Error/401.php
ErrorDocument 403 /00-Error/403.php
ErrorDocument 404 /00-Error/404.php
ErrorDocument 410 /00-Error/410.php
ErrorDocument 414 /00-Error/414.php
ErrorDocument 500 /00-Error/500.php
ErrorDocument 503 /00-Error/503.php
</VirtualHost>
我在日志中收到这样的错误：
[Fri Nov 22 12:37:53.271724 2013] [access_compat:error] [pid 5445] [client xxx.xxx.xxx.xxx:xxxx] AH01797: client denied by server configuration: /srv/www/vhosts/status/, referer: http://www.fierydragonlord.com/
[Fri Nov 22 12:46:14.115480 2013] [access_compat:error] [pid 5440] [client xxx.xxx.xxx.xxx:xxxx] AH01797: client denied by server configuration: /srv/www/vhosts/status/index.php
apache2ctl -S返回以下内容：
[Fri Nov 22 12:56:50.229301 2013] [core:warn] [pid 5529] AH00117: Ignoring deprecated use of DefaultType in line 140 of /etc/apache2/httpd.conf.
AH00548: NameVirtualHost has no effect and will be removed in the next release /etc/apache2/vhosts.d/vhosts.conf:16
VirtualHost configuration:
*:80 is a NameVirtualHost
default server www.fierydragonlord.com (/etc/apache2/vhosts.d/vhosts.conf:18)
port 80 namevhost www.fierydragonlord.com (/etc/apache2/vhosts.d/vhosts.conf:18)
port 80 namevhost www.fierydragonlord.com (/etc/apache2/vhosts.d/vhosts.conf:18)
port 80 namevhost status.fierydragonlord.com (/etc/apache2/vhosts.d/vhosts.conf:53)
port 80 namevhost status.fierydragonlord.com (/etc/apache2/vhosts.d/vhosts.conf:53)
port 80 namevhost files.fierydragonlord.com (/etc/apache2/vhosts.d/vhosts.conf:92)
port 80 namevhost files.fierydragonlord.com (/etc/apache2/vhosts.d/vhosts.conf:92)
ServerRoot: "/srv/www"
Main DocumentRoot: "/srv/www/htdocs"
Main ErrorLog: "/var/log/apache2/error_log"
Mutex ssl-stapling: using_defaults
Mutex ssl-cache: using_defaults
Mutex default: dir="/run/" mechanism=default
Mutex mpm-accept: using_defaults
PidFile: "/run/httpd.pid"
Define: DUMP_VHOSTS
Define: DUMP_RUN_CFG
User: name="wwwrun" id=30
Group: name="www" id=8