Troubleshooting “Permission denied” when attempting to connect to Redis from PHP script

Problem solved, type:

/usr/sbin/setsebool httpd_can_network_connect=1

By default, SELinux does not allow Apache to make socket connections. More information can be found here.

source: https://stackoverflow.com/questions/8765848/troubleshooting-permission-denied-when-attempting-to-connect-to-redis-from-php

PHP / CentOS 7Connect DATABASE Error TYPE: 2002: Permission denied

9down voteaccepted

I had the same issue after getting a new CentOS 7 box, running SELinux. I could connect to my remote MySQL DB server from the command line, but Drupal (and test PHP scripts) could not.

The issue turned out to be the SELinux security policies.

By default, the policy httpd_can_network_connect_db is disabled (meaning that your web server cannot contact a remote DB.)

Check this via:

getsebool -a | grep httpd

If httpd_can_network_connect_db is Off, enable it via:

setsebool -P httpd_can_network_connect_db 1

(The -P flag makes the change permanent, so the setting survives a reboot.)

source: https://stackoverflow.com/questions/41178774/connect-database-error-type-2002-permission-denied

Nginx php html permission denied

After searching , I found it.It's all deals with SELINUX which is a security feature. when using ls -Z

drwxrwxrwx. ec2-user root system_u:object_r:httpd_sys_content_t:s0 www

change this to

drwxrwxrwx. ec2-user root system_u:object_r:httpd_sys_rw_content_t:s0 www

using cmd

chcon -R -t httpd_sys_rw_content_t /var/www

source: https://stackoverflow.com/questions/37710979/nginx-failed-to-open-stream-permission-denied-in-var-www-example-com