网站可以访问，http状态返回500代码

baiyang

原来是lnmpa0.9，更换至阿里云服务器，重新安装的lnmpa1.3，网站和数据迁移完成，修改dns生效后，网站可以访问，但是http状态却返回500代码。

这是怎么回事呢？在论坛搜索了一下，有说是php版本过高，有的说是防跨目录的原因，现打开php错误日志，粘贴如下：


[Sun Apr 30 08:38:32 2017] [notice] caught SIGTERM, shutting down
[Sun Apr 30 08:38:34 2017] [warn] Init: Session Cache is not configured [hint: SSLSessionCache]
[Sun Apr 30 08:38:34 2017] [notice] suEXEC mechanism enabled (wrapper: /usr/local/apache/bin/suexec)
[Sun Apr 30 08:38:35 2017] [notice] Digest: generating secret for digest authentication ...
[Sun Apr 30 08:38:35 2017] [notice] Digest: done
[Sun Apr 30 08:38:35 2017] [notice] Apache/2.2.31 (Unix) mod_ssl/2.2.31 OpenSSL/1.0.1e-fips DAV/2 PHP/5.4.45 configured -- resuming normal operations
[Sun Apr 30 09:42:14 2017] [notice] SIGHUP received.  Attempting to restart
[Sun Apr 30 09:42:14 2017] [notice] Digest: generating secret for digest authentication ...
[Sun Apr 30 09:42:14 2017] [notice] Digest: done
[Sun Apr 30 09:42:14 2017] [notice] Apache/2.2.31 (Unix) mod_ssl/2.2.31 OpenSSL/1.0.1e-fips DAV/2 PHP/5.4.45 configured -- resuming normal operations
[Mon May 01 10:29:26 2017] [notice] caught SIGTERM, shutting down
[Mon May 01 10:29:28 2017] [warn] Init: Session Cache is not configured [hint: SSLSessionCache]
[Mon May 01 10:29:28 2017] [notice] suEXEC mechanism enabled (wrapper: /usr/local/apache/bin/suexec)
[Mon May 01 10:29:28 2017] [notice] Digest: generating secret for digest authentication ...
[Mon May 01 10:29:28 2017] [notice] Digest: done
[Mon May 01 10:29:28 2017] [notice] Apache/2.2.31 (Unix) mod_ssl/2.2.31 OpenSSL/1.0.1e-fips DAV/2 PHP/5.4.45 configured -- resuming normal operations

baiyang

补充，返回http状态码如下：

返回状态码： 500 Internal Server Error
网页返回HEAD信息如下
Server: nginx
Date: Mon, 01 May 2017 09:46:53 GMT
Content-Type: text/html; charset=gbk
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/5.4.45
Set-Cookie: umnN_2132_saltkey=0C32J0Yq; expires=Wed, 31-May-2017 09:46:53 GMT; path=/; httponly
Set-Cookie: umnN_2132_lastvisit=1493628413; expires=Wed, 31-May-2017 09:46:53 GMT; path=/
Set-Cookie: umnN_2132_sid=i88Pp2; expires=Tue, 02-May-2017 09:46:53 GMT; path=/
Set-Cookie: umnN_2132_lastact=1493632013%09index.php%09; expires=Tue, 02-May-2017 09:46:53 GMT; path=/
Set-Cookie: umnN_2132_sid=i88Pp2; expires=Tue, 02-May-2017 09:46:53 GMT; path=/

licess

这个是apache的错误日志不是php的错误日志

baiyang

哦，开启php错误日志后，并没有相关的错误记录。

比较奇怪的是，同一个服务器下其他的虚拟主机就没有问题，只有这一个主机在能访问的情况下http返回500，而且只有首页返回500，其他页面都没有这个问题。

这是怎么回事呢？

licess

没错误日志不一定是没错误，可能没正确开启或者日志文件权限有问题，开启可以看一下置顶帖

没有日志没法说具体怎么回事