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WHM error: The system cannot determine the base domain (domain name)
Solution : run /scripts/upcp –force

Simple hot link protection using .htaccess

<IfModule mod_rewrite.c>
 RewriteEngine on
 #RewriteCond %{HTTP_REFERER} !^$
 RewriteCond %{REQUEST_FILENAME} -f
 RewriteCond %{REQUEST_FILENAME} \.(gif|jpe?g?|png)$ [NC]
 RewriteCond %{HTTP_REFERER} !^https?://([^.]+\.)?your-domain\. [NC]
 RewriteCond %{HTTP_REFERER} !^https?://([^.]+\.)?google\. [NC]
 RewriteRule \.(gif|jpe?g?|png|bmp)$ http://your-domain/hotlinkdenied [R,L]
</ifModule>

• Replace your-domain with your actual domain name
• Replace http://your-domain/hotlinkdenied with a valid url

 

sudo apt-get remove libpam-smbpass

or

pam-auth-update

and remove “SMB password synchronization”

 

Recently after a backup restore MySql server failed to start with the following error message:

start: Job failed to start

To fix start: Job failed to start I had to re-install the MySQL server.

I hope you have a backup of your data because you will lose all your MySQL data running the following commands

apt-get remove --purge mysql-server
rm -rf /var/lib/mysql
apt-get auoremove
apt-get get update
apt-get install mysql-server

After boot there was no console prompt to login.

The issue was related to the VGA resolution.

To fix Ubuntu server no login console

modify in /etc/default/grub

# Grub Resolution
GRUB_GFXMODE=1024x768x24

# Kernel param to set a port to resolution and vertical refresh.
GRUB_CMDLINE_LINUX_DEFAULT="nomodeset video=VGA:M1024x768@60m"

Of course, you can set resolution to suit your needs by replacing 1024x768x24 to whatever you need.

There are several solution on how to check if php5-fpm is running but they all failed (link1, link2).
The solution to check if php-fpm is running is to use wget to get a file in your server. If wget fails then restart the service.

This is the script to properly check if php-fpm is running and start php-fpm if it’s not running:

 

WordPress contributor role lacks the permission to upload images.
There are a few plugins that can let you change role permissions, but I just needed to allow contributor role to upload images.

One minor change in the theme’s functions file is sufficient to give WordPress contributor role the permission to upload & insert images without plugin:

if ( current_user_can('contributor') && !current_user_can('upload_files') )
	add_action('admin_init', 'wif_allow_contributor_uploads');

function wif_allow_contributor_uploads() {
	$contributor = get_role('contributor');
	$contributor->add_cap('upload_files');
}

The following query will get column names from table in MySql > 5

SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = 'database_name' AND TABLE_NAME = 'table_name';

where

• database_name is your database
• table_name is your table

If you have not pushed a commit use the following command to delete last commit.

Git delete last commit

git reset --soft HEAD~1

How to implement a custom dynamic error message to your jQuery Validator method?

$.validator.addMethod("checkEmailAvailability",function(value,element){
	var result;
	$.ajax({
        type: "POST",
        async: false,
		url:"includes/ajax/check-availability.php",
		data:{email:value},
		dataType:"json",
        success: function(response) {
			result=response.success;
			$.validator.messages.checkEmailAvailability=response.msg;
         }
     });
	 return result;
});

In the above code the message for the validator method is set by using

$.validator.messages.checkEmailAvailability=response.msg;

where the response.msg is the message we receive from the server.

This is a good and simple JavaScript snippet for the jQuery Validator plugin on how to add a jquery.validator.addmethod custom error message.

If you find this useful leave us a comment.