I found my apache2 access log (debian) includes some entries not related to my domain and got '301' redirection:
,-,-,[19/Aug/2014:10:09:54 +0800],"GET /admin.php HTTP/1.0",301,493,,,
,-,-,[19/Aug/2014:10:09:55 +0800],"GET /administrator/index.php HTTP/1.0",301,521,,,
,-,-,[19/Aug/2014:10:09:55 +0800],"GET /wp-login.php HTTP/1.0",301,499,,,
Obviously those requests are not to my domain, but from this source, debian will default deny all proxy request:
https://wiki.apache.org/httpd/ClientDeniedByServerConfiguration
Besides, I cannot find there is mod_proxy under /etc/apache2/mods-enabled.
I am anxious about:
1. is the server acting as open proxy?
2. why http 301 is returned?
Thx.