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Tips & Tricks : MariaDB on CentOS : Installation and first configuration

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In order to install MySQL/MariaDB database engine on CentOS follow these:

[root@localhost ~]# yum install mariadb-server
[root@localhost ~]# systemctl enable mariadb
[root@localhost ~]# systemctl start mariadb

[root@localhost ~]# mysql_secure_installation
/usr/bin/mysql_secure_installation: line 379: find_mysql_client: command not found

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we'll need the current
password for the root user.  If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none):
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.

Set root password? [Y/n] Y
New password: 
Re-enter new password: 
Password updated successfully!
Reloading privilege tables..
 ... Success!


By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them.  This is intended only for testing, and to make the installation
go a bit smoother.  You should remove them before moving into a
production environment.


Remove anonymous users? [Y/n] y
 ... Success!

Normally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] n
 ... skipping.

By default, MariaDB comes with a database named 'test' that anyone can
access.  This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] y
 - Dropping test database...
 ... Success!
 - Removing privileges on test database...
 ... Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] y
 ... Success!

Cleaning up...

All done!  If you've completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!
[root@localhost ~]#

Recommended is also to deploy phpMyAdmin, if you don’t have any issues with installing web server on same box as database.

That will simplify MySQL/MariaDB management.

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Tips & Tricks : CentOS firewalld : open port

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Once you install CentOS 7, by default firewalld will block almost all network traffic.

In order to open ports for certain services you can easily reconfigure firewall using firewall-cmd command.

[root@localhost firewalld]# firewall-cmd --get-active-zones
public
  interfaces: eno16777728
[root@localhost firewalld]# firewall-cmd --zone=public --add-port=80/tcp --permanent
success
[root@localhost firewalld]# firewall-cmd --reload
success

Example contains port 80, however you can open any port using same method.
It is worth to check zones configured on your machine and make sure you open port in proper zone where service should be enabled.

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Tips & Tricks : Change location of Box Sync folder

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Once you have installed Box Sync and before logging into Sync , set the folder location in the registry key:
  1. Open Registry Edit by going to the Start menu and searching for regedit.
  2. In the left pane, navigate to HKEY_LOCAL_MACHINE > SOFTWARE > BOX > BoxSync
  3. In the right menu, right-click and select New > String Value. Name this new value SyncRootFolder.
  4. Right-click the newly created SyncRootFolder value, select Modify, and set the Value data to the required path. End the path with the name of the new Sync folder. 

Important is also to change shortcut, which appears in Windows Explorer tree. In order to point it to new folder:

  1. Open Registry Edit by going to the Start menu and searching for regedit.
  2. In the left pane, navigate to HKEY_CLASSES_ROOT > CLSID > {4A8FCD9F-623C-4283-96F0-10F41846A98A} > Instance > InitPropertyBag
  3. In the right menu, double-click on TargetFolderPath and enter new location for Box Sync files.

 

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Tips & Tricks : Installing PHP Xdebug on openSUSE from existing repo

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While using PhpStorm I tried to use remote PHP interpreter on my dev virtual machine. As I’m big openSUSE fan and user I have openSUSE Leap 42.1 as my development machine. Unfortunately there is no Xdebug for PHP distributed by default.

However, there is repository available, so it’s easy to add this missing component to my system.

Here is how…

(more…)

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Tips & Tricks : Migrating Mozilla Thunderbird settings between computers

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If you have to move Mozilla Thunderbird data from one computer to another, you can do it by simply copying files between computer.

Folder with Thunderbird profiles is located here:

%APPDATA%\Thunderbird\Profiles\

There will be at least one or more sub-folders with profile data.

What you need to copy is content of Thunderbird profile you want to migrate to new computer.

On destination computer install Thunderbird and in same folder there will be sub-folder with default profile.

Copy all file from source profile to destination and that’s it.

In case you want to create Thunderbird profile in different folder start Thunderbird with following command:

thunderbird -p

That will allow you to define location of the new profile.

How that helps with migrating Thunderbird between folders/drives or computers.

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