Warning: DocumentRoot error solution

For security considerations during installation, you are prepared to place DocumentRoot in a single partition. Therefore, you have created a directory for the logical partition: /Dmnr set/etc/fstab to: Code :... after the LABEL/Dmnr/Dmnrext3defaults12 directory is created

For security considerations during installation, you are prepared to place DocumentRoot in a single partition. Therefore, you have created a directory specifically for the logical partition:/Dmnr

To mount the partition, set/etc/fstab:

Code :...

LABEL =/Dmnr ext3 defaults 1 2

After the directory is created, upload the website content to www/html under the Directory, and modify/etc/httpd/conf/httpd. conf as follows:

[Php]

...

DocumentRoot "/Dmnr/www/html"

...

　　

...

[/Php]

Restart Apache with the following error message:

Code: # service httpd restart

Starting httpd: Warning: DocumentRoot [/Dmnr/www/html] does not exist

[OK]

Of course, the server will not work normally. Apache thinks this is not a directory! However, it is okay to align DocumentRoot "with other directories, and the server can work normally.

Solution:

1. the configuration of SELinux (omitted...) can be referred:

Http://www.chinalinuxpub.com/read.php? Wid = 1010

Http://blog.josesun.org/archives/2004_08/2

2. modify html directory permissions:

1. check the website content directory

[Php]

# Ls-Z/Dmnr/www/html

[/Php]

Status:

[Php]

-Rwxr-xr-x someuser somegroup index. php

...

[/Php]

2. you obviously do not have the SELinux permission, so make the following changes:

[Php]

Chcon-R-t httpd_user_content_t/Dmnr/www/html

[/Php]

Let's look at it again:

[Php]

-Rwxr-xr-x someuser somegroup user_u: object_r: httpd_sys_content_t index. php

...

[/Php]

Restart httpd to run php normally.

III. Database

1. Mysql

However, when the database is read and written, SELinux rejects the request. The permission is as follows:/var/lib/mysql or/var/lib/pgsql:

[Php]

-Rw ---- mysql root: object_r: mysqld_db_t ibdata1

-Rw ---- mysql root: object_r: mysqld_db_t ib_logfile0

-Rw ---- mysql root: object_r: mysqld_db_t ib_logfile1

Drwx ------ mysql root: object_r: mysqld_db_t mysql

Srwxrwxrwx mysql root: object_r: mysqld_var_run_t mysql. sock

Drwx ------ mysql root: object_r: mysqld_db_t test

[/Php]

But under the test database where the data is stored, we can see that the self-built table still does not have the SELinux permission. it doesn't matter. just modify it:

[Php]

Chcon-R-t mysqld_db_t/var/lib/mysql

[/Php]

Note! The SELinux attribute here is mysqld_db_t

2. pgsql

I also opened the PostgreSQL library and failed to modify the attributes using this method. an error is returned:

[Php]

Chcon: cant apply partial context to unlabeled file pgsql/data/base/23456

Chcon: cant apply partial context to unlabeled file pgsql/data/base/12345

[/Php]

In/var/lib/pgsql/data/base, attributes cannot be applied in self-built databases 12345 and 23456. Looking for information is messy and I have no clue for a long time. forget it!

[Php]

# Su-postgres

$ Cd/var/lib/pgsql/data/base

$ Music 12345 12345_ B

$ Cp-r fig 12345

[/Php]

Let's look at it again:

[Php]

Drwx ------ s S postgres user_u: object_r: postgresql_db_t 12345

...

[/Php]

It indicates that the attribute has been added. refresh the page for reading the database. OK!

Finally, I would like to say a few more words. modifying SELinux attributes is annoying, but it is good for security, so it is worth the next time.