ssl配置中SSLEngine on无法启动？

狗尾草

日志无错误提示，仅输出以下内容，明显是apache没有启动。但之前配置还正常来着，只是修改了ssl证书的文件内容，以为没有问题，所以没有保存原有配置，因无法启动，所以通过注释参数，确认SSLEngine on这行去掉注释，就无法启动，研究了一下午，也没发现原因，特求助！

[Wed May 18 22:51:46 2011] [notice] caught SIGTERM, shutting down
[Wed May 18 22:51:47 2011] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Wed May 18 22:57:04 2011] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Wed May 18 22:57:44 2011] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)

ssl.conf

LoadModule ssl_module modules/mod_ssl.so

Listen 443

AddType application/x-x509-ca-cert .crt
AddType application/x-pkcs7-crl    .crl
SSLPassPhraseDialog  builtin
SSLSessionCache         shmcb:/var/cache/mod_ssl/scache(512000)
SSLSessionCacheTimeout  300
SSLMutex default
SSLRandomSeed startup file:/dev/urandom  256
SSLRandomSeed connect builtin
SSLCryptoDevice builtin

<VirtualHost _default_:443>
ErrorLog logs/ssl_error_log
TransferLog logs/ssl_access_log
LogLevel warn
#SSLEngine on
#SSLProtocol all -SSLv2
#SSLCipherSuite ALL:!ADH:!EXPORT:!SSLv2:RC4+RSA:+HIGH:+MEDIUM:+LOW
##SSLCertificateFile /etc/httpd/conf/duduta_cer/server.crt
#SSLCertificateKeyFile /etc/httpd/conf/duduta_cer/server.key
#SSLCertificateChainFile /etc/httpd/conf/duduta_cer/intermediate.crt
#SSLCACertificateFile /etc/httpd/conf/duduta_cer/intermediate.crt
<Files ~ "\.(cgi|shtml|phtml|php3?)$">
    SSLOptions +StdEnvVars
</Files>
<Directory "/var/www/cgi-bin">
    SSLOptions +StdEnvVars
</Directory>
SetEnvIf User-Agent ".*MSIE.*" \
         nokeepalive ssl-unclean-shutdown \
         downgrade-1.0 force-response-1.0
CustomLog logs/ssl_request_log \
          "%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b"

</VirtualHost>