Category Archives: CentOS

nginx – failed (13: Permission denied)

CentOS, nginx

In a fresh CENTOS, while installing & testing nginx i’v faced the following error..

2019/10/10 17:54:11 [crit] 18960#0: *1 stat() "/home/www/html/index.php" failed (13: Permission denied), client: 94.61.69.69, server: 51.158.69.69, request: "GET /index.php HTTP/1.1", host: "51.158.69.69"

This is how I’v solved.

chcon -R -t httpd_sys_content_t /home/www/html/

More readings
https://stackoverflow.com/questions/22586166/why-does-nginx-return-a-403-even-though-all-permissions-are-set-properly#answer-26228135

NOTICE Jail started without ‘journalmatch’ set. Jail regexs will be checked against all journal entries

CentOS

So!, my apache-auth (and others) weren’t showing up the File list.

2018-11-07 20:02:28,651 fail2ban.filtersystemd [23523]: NOTICE Jail started without ‘journalmatch’ set. Jail regexs will be checked against all journal entries, which is not advised for performance reasons.

 

Lets edit /etc/fail2ban/jail.d/00-systemd.conf and set backend to auto.

Refused to display ‘https://www.domain.com/admin/top.php’ in a frame because it set ‘X-Frame-Options’ to ‘deny’.

Apache, CentOS, ,

 

Refused to display ‘https://www.domain.com/admin/top.php’ in a frame because it set ‘X-Frame-Options’ to ‘deny’.

Setting this up, on your .htaccess might solve the problem

Header set X-Frame-Options SAMEORIGIN

But, I have multiple frames…

Refused to display ‘https://www.domain.com/admin/top.php’ in a frame because it set multiple ‘X-Frame-Options’ headers with conflicting values (‘DENY, SAMEORIGIN’). Falling back to ‘deny’.

This worked out!

Header always unset X-Frame-Options

As seen on https://stackoverflow.com/questions/17092154/x-frame-options-on-apache

live MySQL queries

CentOS, MySQL

On your mysql console…

mysql> SHOW VARIABLES LIKE "general_log%";

+------------------+----------------------------+
| Variable_name    | Value                      |
+------------------+----------------------------+
| general_log      | OFF                        |
| general_log_file | /var/run/mysqld/mysqld.log |
+------------------+----------------------------+

mysql> SET GLOBAL general_log = 'ON';

Then!

tail -f -n200 /var/run/mysqld/mysqld.log

 

After debugging… don’t forget to turn it OFF!

mysql> SET GLOBAL general_log = 'OFF';