我的服务器只能服务器自己用域名和ip访问，其他机器都访问不了。为什么啊

我做的网站，有ip，域名。在局域网就是192的私网里面可以正常访问。在公网里面，只要有服务器本身可以用ip和域名访问，但是其他机器就访问不了。我的服务器是apache2.0 ，windows xp（测试用）

ip和我的mac地址是绑定的

域名也是跟ip也是绑定的。

apache 应该怎么配置呢
我问我们学校的网络中心，他们说是我的网站没发布，还说在局域网里访问和在公网访问 不是一个情况。
难道是因为apache 的什么配置没改，但我看网上的配置文件讲解，也没说发布到公网上的时候需要特别修改啊

我的apache 的httpd.conf文件如下。
ServerRoot "."

PidFile logs/httpd.pid
Timeout 300
KeepAlive On

MaxKeepAliveRequests 100

KeepAliveTimeout 15

<IfModule mpm_winnt.c>
ThreadsPerChild 1024
MaxRequestsPerChild 10000
</IfModule>

Listen 80
LoadModule access_module modules/mod_access.so
LoadModule actions_module modules/mod_actions.so
LoadModule alias_module modules/mod_alias.so
LoadModule asis_module modules/mod_asis.so
LoadModule auth_module modules/mod_auth.so
#LoadModule auth_anon_module modules/mod_auth_anon.so
#LoadModule auth_dbm_module modules/mod_auth_dbm.so
#LoadModule auth_digest_module modules/mod_auth_digest.so
LoadModule autoindex_module modules/mod_autoindex.so
#LoadModule cern_meta_module modules/mod_cern_meta.so
LoadModule cgi_module modules/mod_cgi.so
#LoadModule dav_module modules/mod_dav.so
#LoadModule dav_fs_module modules/mod_dav_fs.so
LoadModule dir_module modules/mod_dir.so
LoadModule env_module modules/mod_env.so
#LoadModule expires_module modules/mod_expires.so
#LoadModule file_cache_module modules/mod_file_cache.so
#LoadModule headers_module modules/mod_headers.so
LoadModule imap_module modules/mod_imap.so
LoadModule include_module modules/mod_include.so
#LoadModule info_module modules/mod_info.so
LoadModule isapi_module modules/mod_isapi.so
LoadModule log_config_module modules/mod_log_config.so
LoadModule mime_module modules/mod_mime.so
#LoadModule mime_magic_module modules/mod_mime_magic.so
#LoadModule proxy_module modules/mod_proxy.so
#LoadModule proxy_connect_module modules/mod_proxy_connect.so
#LoadModule proxy_http_module modules/mod_proxy_http.so
#LoadModule proxy_ftp_module modules/mod_proxy_ftp.so
LoadModule negotiation_module modules/mod_negotiation.so
LoadModule rewrite_module modules/mod_rewrite.so
LoadModule setenvif_module modules/mod_setenvif.so
#LoadModule speling_module modules/mod_speling.so
#LoadModule status_module modules/mod_status.so
#LoadModule unique_id_module modules/mod_unique_id.so
LoadModule userdir_module modules/mod_userdir.so
#LoadModule usertrack_module modules/mod_usertrack.so
#LoadModule vhost_alias_module modules/mod_vhost_alias.so
#LoadModule ssl_module modules/mod_ssl.so

LoadModule python_module modules/mod_python.so
ServerAdmin admin@phpnow.org

UseCanonicalName Off
DocumentRoot "../htdocs"

<Directory />
Options FollowSymLinks
AllowOverride None
</Directory>
<Directory "../htdocs">

Options Indexes Includes FollowSymLinks
AllowOverride All
Order allow,deny
Allow from all

</Directory>

UserDir "My Documents/My Website"

DirectoryIndex index.php index.html index.htm index.html.var
AccessFileName .htaccess
<FilesMatch "^\.ht">
Order allow,deny
Deny from all
</FilesMatch>
TypesConfig conf/mime.types

DefaultType text/plain
<IfModule mod_mime_magic.c>
MIMEMagicFile conf/magic
</IfModule>
HostnameLookups Off

ErrorLog logs/error.log

LogLevel warn

LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %b" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent

CustomLog logs/access.log common
ServerTokens Full
ServerSignature On

Alias /icons/ "./icons/"

<Directory "./icons">
Options Indexes MultiViews
AllowOverride None
Order allow,deny
Allow from all
</Directory>

AliasMatch ^/manual(?:/(?:de|en|es|fr|ja|ko|ru))?(/.*)?$ "./manual$1"

<Directory "./manual">
Options Indexes
AllowOverride None
Order allow,deny
Allow from all

<Files *.html>
SetHandler type-map
</Files>

SetEnvIf Request_URI ^/manual/(de|en|es|fr|ja|ko|ru)/ prefer-language=$1
RedirectMatch 301 ^/manual(?:/(de|en|es|fr|ja|ko|ru)){2,}(/.*)?$ /manual/$1$2
</Directory>
ScriptAlias /cgi-bin/ "./cgi-bin/"
<Directory "./cgi-bin">
AllowOverride None
Options None
Order allow,deny
Allow from all
</Directory>
IndexOptions FancyIndexing VersionSort

AddIconByEncoding (CMP,/icons/compressed.gif) x-compress x-gzip

AddIconByType (TXT,/icons/text.gif) text/*
AddIconByType (IMG,/icons/image2.gif) image/*
AddIconByType (SND,/icons/sound2.gif) audio/*
AddIconByType (VID,/icons/movie.gif) video/*

AddIcon /icons/binary.gif .bin .exe
AddIcon /icons/binhex.gif .hqx
AddIcon /icons/tar.gif .tar
AddIcon /icons/world2.gif .wrl .wrl.gz .vrml .vrm .iv
AddIcon /icons/compressed.gif .Z .z .tgz .gz .zip
AddIcon /icons/a.gif .ps .ai .eps
AddIcon /icons/layout.gif .html .shtml .htm .pdf
AddIcon /icons/text.gif .txt
AddIcon /icons/c.gif .c
AddIcon /icons/p.gif .pl .py
AddIcon /icons/f.gif .for
AddIcon /icons/dvi.gif .dvi
AddIcon /icons/uuencoded.gif .uu
AddIcon /icons/script.gif .conf .sh .shar .csh .ksh .tcl
AddIcon /icons/tex.gif .tex
AddIcon /icons/bomb.gif core

AddIcon /icons/back.gif ..
AddIcon /icons/hand.right.gif README
AddIcon /icons/folder.gif ^^DIRECTORY^^
AddIcon /icons/blank.gif ^^BLANKICON^^
DefaultIcon /icons/unknown.gif
ReadmeName README.html
HeaderName HEADER.html
IndexIgnore .??* *~ *# HEADER* README* RCS CVS *,v *,t

AddLanguage ca .ca
AddLanguage cs .cz .cs
AddLanguage da .dk
AddLanguage de .de
AddLanguage el .el
AddLanguage en .en
AddLanguage eo .eo
AddLanguage es .es
AddLanguage et .et
AddLanguage fr .fr
AddLanguage he .he
AddLanguage hr .hr
AddLanguage it .it
AddLanguage ja .ja
AddLanguage ko .ko
AddLanguage ltz .ltz
AddLanguage nl .nl
AddLanguage nn .nn
AddLanguage no .no
AddLanguage pl .po
AddLanguage pt .pt
AddLanguage pt-BR .pt-br
AddLanguage ru .ru
AddLanguage sv .sv
AddLanguage zh-CN .zh-cn
AddLanguage zh-TW .zh-tw

LanguagePriority en ca cs da de el eo es et fr he hr it ja ko ltz nl nn no pl pt pt-BR ru sv zh-CN zh-TW
ForceLanguagePriority Prefer Fallback

AddCharset ISO-8859-1 .iso8859-1 .latin1
AddCharset ISO-8859-2 .iso8859-2 .latin2 .cen
AddCharset ISO-8859-3 .iso8859-3 .latin3
AddCharset ISO-8859-4 .iso8859-4 .latin4
AddCharset ISO-8859-5 .iso8859-5 .latin5 .cyr .iso-ru
AddCharset ISO-8859-6 .iso8859-6 .latin6 .arb
AddCharset ISO-8859-7 .iso8859-7 .latin7 .grk
AddCharset ISO-8859-8 .iso8859-8 .latin8 .heb
AddCharset ISO-8859-9 .iso8859-9 .latin9 .trk
AddCharset ISO-2022-JP .iso2022-jp .jis
AddCharset ISO-2022-KR .iso2022-kr .kis
AddCharset ISO-2022-CN .iso2022-cn .cis
AddCharset Big5 .Big5 .big5
# For russian, more than one charset is used (depends on client, mostly):
AddCharset WINDOWS-1251 .cp-1251 .win-1251
AddCharset CP866 .cp866
AddCharset KOI8-r .koi8-r .koi8-ru
AddCharset KOI8-ru .koi8-uk .ua
AddCharset ISO-10646-UCS-2 .ucs2
AddCharset ISO-10646-UCS-4 .ucs4
AddCharset UTF-8 .utf8

AddCharset GB2312 .gb2312 .gb
AddCharset utf-7 .utf7
AddCharset utf-8 .utf8
AddCharset big5 .big5 .b5
AddCharset EUC-TW .euc-tw
AddCharset EUC-JP .euc-jp
AddCharset EUC-KR .euc-kr
AddCharset shift_jis .sjis

AddType application/x-compress .Z
AddType application/x-gzip .gz .tgz

AddHandler type-map var
BrowserMatch "Mozilla/2" nokeepalive
BrowserMatch "MSIE 4\.0b2;" nokeepalive downgrade-1.0 force-response-1.0
BrowserMatch "RealPlayer 4\.0" force-response-1.0
BrowserMatch "Java/1\.0" force-response-1.0
BrowserMatch "JDK/1\.0" force-response-1.0
BrowserMatch "Microsoft Data Access Internet Publishing Provider" redirect-carefully
BrowserMatch "MS FrontPage" redirect-carefully
BrowserMatch "^WebDrive" redirect-carefully
BrowserMatch "^WebDAVFS/1.[0123]" redirect-carefully
BrowserMatch "^gnome-vfs" redirect-carefully
BrowserMatch "^XML Spy" redirect-carefully
BrowserMatch "^Dreamweaver-WebDAV-SCM1" redirect-carefully


<IfModule mod_status.c>
<Location /server-status>
SetHandler server-status
Order deny,allow
Allow from all
</Location>
</IfModule>

<IfModule mod_info.c>
<Location /server-info>
SetHandler server-info
Order deny,allow
Allow from all
</Location>
</IfModule>

#
# Bring in additional module-specific configurations
#
<IfModule mod_ssl.c>
Include conf/ssl.conf
</IfModule>


# Begin PHP Configure of PHPnow
LoadModule php5_module "../php-5.2.9-2-Win32/php5apache2.dll"
<IfModule mod_php5.c>
PHPINIDir "../php-5.2.9-2-Win32/"
AddType application/x-httpd-php .php
AddType application/x-httpd-php-source .phps
</IfModule>
# End PHP Configure of PHPnow

ErrorDocument 404 /404.html

Include conf/extra/httpd-vhosts.conf