Apache 퍼미션 문제 : You don't have permission to access / on this server. > 기술자료

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You don't have permission to access /index.html on this server.


1. Apache 에러 로그 메시지
[root@localhost home]# vi /var/log/httpd/username-error_log
[Fri Aug 04 06:03:21.558814 2017] [core:error] [pid 21252] (13)Permission denied: [client 내아이피:5743] AH00035: access to /index.html denied (filesystem path '/home/username/public_html/index.html') because search permissions are missing on a component of the path



2. 해당 계정의 디렉토리에 일반 사용자 실행권한을 줌
/home/username  디렉토리 권한을 chmod 711 로 변경
[root@localhost ~]# ls -al /home
total 4
drwxr-xr-x.  3 root   root     19 Aug  4 03:31 .
dr-xr-xr-x. 18 root   root   4096 Aug  2 13:32 ..
drwx------.  3 username username   94 Aug  4 05:17 username
[root@localhost ~]# chmod 711 /home/username
[root@localhost ~]# ls -al /home
total 4
drwxr-xr-x.  3 root   root     19 Aug  4 03:31 .
dr-xr-xr-x. 18 root   root   4096 Aug  2 13:32 ..
drwx--x--x.  3 username username   94 Aug  4 05:17 username



3. httpd.conf 수정
# vi /etc/httpd/conf/httpd.conf
<Directory />
    AllowOverride none
    Require all denied
</Directory>

를 아래와 같이 변경

<Directory />
    Options FollowSymLinks
    AllowOverride none
    #Require all denied
    Require all granted
</Directory>


> 모든 요청 허가
Apache 2.2 configuration:
Order allow,deny
Allow from all

Apache 2.4 configuration:
Require all granted


> 모든 요청 거부
Apache 2.2 configuration:
Order deny,allow
Deny from all

Apache 2.4 configuration:
Require all denied


4. SELinux가 security context 문제로 접근을 차단해서 발생한 것일 수 있다. 
이 경우 chcon 명령을 사용해서 새로 변경한 DocumentRoot의 하위 디렉토리 및 파일을 Apache Httpd의 SELinux security context와 일치시켜 문제를 해결할 수 있다

/var/www/html 은 잘 접근이 되는데 /home/username/public_html 는 접근이 안됨...
두개 비교 (ls -alZ 로 비교)

4-1.  Apache httpd의 기본 DocumentRoot의 SELinux security context 확인
[root@localhost ~]# ls -alZ /var/www/html
drwxr-xr-x. root root system_u:object_r:httpd_sys_content_t:s0 .
drwxr-xr-x. root root system_u:object_r:httpd_sys_content_t:s0 ..
-rw-r--r--. root root unconfined_u:object_r:httpd_sys_content_t:s0 index.php

4-2. 새로 변경한 DocumentRoot의 SELinux security context 확인
[root@localhost ~]# ls -alZ /home/username/public_html/
drwxr-xr-x. username username unconfined_u:object_r:httpd_user_content_t:s0 .
drwx--x--x. username username unconfined_u:object_r:user_home_dir_t:s0 ..
-rw-r--r--. username username unconfined_u:object_r:httpd_user_content_t:s0 index.html

4-3. chcon 명령으로 SELinux security context 변경
[root@localhost ~]# chcon -Rv --type=httpd_sys_content_t /home/username/public_html
changing security context of ‘/home/u4kano/public_html/index.html’
changing security context of ‘/home/u4kano/public_html’

4-4. 변경내용 확인
[root@localhost home]# ls -alZ /home/u4kano/public_html/
drwxr-xr-x. u4kano u4kano unconfined_u:object_r:httpd_sys_content_t:s0 .
drwx--x--x. u4kano u4kano unconfined_u:object_r:user_home_dir_t:s0 ..
-rw-r--r--. u4kano u4kano unconfined_u:object_r:httpd_sys_content_t:s0 index.html

4-5. 현재 SELinux 상태 확인
[root@localhost ~]# sestatus
SELinux status:                 enabled
SELinuxfs mount:                /sys/fs/selinux
SELinux root directory:         /etc/selinux
Loaded policy name:             targeted
Current mode:                   enforcing
Mode from config file:          enforcing
Policy MLS status:              enabled
Policy deny_unknown status:     allowed
Max kernel policy version:      28


참고자료
http://youdw.egloos.com/171450
http://develop.sunshiny.co.kr/960
http://blog.naver.com/wizardkyn/220713639482