diff --git a/cfg/mariadb-10.0/devilbox-custom.cnf-example b/cfg/mariadb-10.0/devilbox-custom.cnf-example
new file mode 100644
index 00000000..6d2549fa
--- /dev/null
+++ b/cfg/mariadb-10.0/devilbox-custom.cnf-example
@@ -0,0 +1,5 @@
+[mysqld]
+;key_buffer_size=16M
+
+[mysqldump]
+;quick
diff --git a/cfg/mariadb-10.1/devilbox-custom.cnf-example b/cfg/mariadb-10.1/devilbox-custom.cnf-example
new file mode 100644
index 00000000..6d2549fa
--- /dev/null
+++ b/cfg/mariadb-10.1/devilbox-custom.cnf-example
@@ -0,0 +1,5 @@
+[mysqld]
+;key_buffer_size=16M
+
+[mysqldump]
+;quick
diff --git a/cfg/mariadb-10.2/devilbox-custom.cnf-example b/cfg/mariadb-10.2/devilbox-custom.cnf-example
new file mode 100644
index 00000000..6d2549fa
--- /dev/null
+++ b/cfg/mariadb-10.2/devilbox-custom.cnf-example
@@ -0,0 +1,5 @@
+[mysqld]
+;key_buffer_size=16M
+
+[mysqldump]
+;quick
diff --git a/cfg/mariadb-10.3/devilbox-custom.cnf-example b/cfg/mariadb-10.3/devilbox-custom.cnf-example
new file mode 100644
index 00000000..6d2549fa
--- /dev/null
+++ b/cfg/mariadb-10.3/devilbox-custom.cnf-example
@@ -0,0 +1,5 @@
+[mysqld]
+;key_buffer_size=16M
+
+[mysqldump]
+;quick
diff --git a/cfg/mysql-5.5/README.md b/cfg/mysql-5.5/README.md
deleted file mode 100644
index db8213f1..00000000
--- a/cfg/mysql-5.5/README.md
+++ /dev/null
@@ -1,5 +0,0 @@
-# User-defined MySQL configuration
-
-Add as many `*.cnf` files here as you wish.
-
-Files not ending with `*.cnf` will not be picked up during startup.
diff --git a/cfg/mysql-5.5/devilbox-custom.cnf-example b/cfg/mysql-5.5/devilbox-custom.cnf-example
new file mode 100644
index 00000000..6d2549fa
--- /dev/null
+++ b/cfg/mysql-5.5/devilbox-custom.cnf-example
@@ -0,0 +1,5 @@
+[mysqld]
+;key_buffer_size=16M
+
+[mysqldump]
+;quick
diff --git a/cfg/mysql-5.5/devilbox-user.cnf-example b/cfg/mysql-5.5/devilbox-user.cnf-example
deleted file mode 100644
index 8dc0d8ad..00000000
--- a/cfg/mysql-5.5/devilbox-user.cnf-example
+++ /dev/null
@@ -1,3 +0,0 @@
-[mysqld]
-slow_query_log = 1
-log_queries_not_using_indexes = 1
diff --git a/cfg/mysql-5.6/devilbox-custom.cnf-example b/cfg/mysql-5.6/devilbox-custom.cnf-example
new file mode 100644
index 00000000..6d2549fa
--- /dev/null
+++ b/cfg/mysql-5.6/devilbox-custom.cnf-example
@@ -0,0 +1,5 @@
+[mysqld]
+;key_buffer_size=16M
+
+[mysqldump]
+;quick
diff --git a/cfg/mysql-5.7/devilbox-custom.cnf-example b/cfg/mysql-5.7/devilbox-custom.cnf-example
new file mode 100644
index 00000000..6d2549fa
--- /dev/null
+++ b/cfg/mysql-5.7/devilbox-custom.cnf-example
@@ -0,0 +1,5 @@
+[mysqld]
+;key_buffer_size=16M
+
+[mysqldump]
+;quick
diff --git a/cfg/mysql-8.0/devilbox-custom.cnf-example b/cfg/mysql-8.0/devilbox-custom.cnf-example
new file mode 100644
index 00000000..6d2549fa
--- /dev/null
+++ b/cfg/mysql-8.0/devilbox-custom.cnf-example
@@ -0,0 +1,5 @@
+[mysqld]
+;key_buffer_size=16M
+
+[mysqldump]
+;quick
diff --git a/docs/Configure.md b/docs/Configure.md
index a0f994d2..6ea0b7a9 100644
--- a/docs/Configure.md
+++ b/docs/Configure.md
@@ -308,10 +308,44 @@ drwxrwxr-x 6 48 48 4096 Jun 21 08:47 mariadb-10.0/
 drwxrwxr-x 6 48 48 4096 Jun 21 08:47 mariadb-10.1/
 drwxrwxr-x 6 48 48 4096 Jun 21 08:47 mariadb-10.2/
 drwxrwxr-x 6 48 48 4096 Jun 21 08:47 mariadb-10.3/
+drwxrwxr-x 6 48 48 4096 Jun 21 08:47 mysqp-5.5/
+drwxrwxr-x 6 48 48 4096 Jun 21 08:47 mysqp-5.6/
+drwxrwxr-x 6 48 48 4096 Jun 21 08:47 mysqp-5.7/
+drwxrwxr-x 6 48 48 4096 Jun 21 08:47 mysqp-8.0/
 ```
 
-
 ##### 4.4.5 my.cnf
+
+`my.cnf` settings can be configured for each MySQL/MariaDB version separately. Container-based configuration is done inside the `./cfg/` directory.
+
+```shell
+$ ls -l ./cfg/ | grep -E 'mysql|maria'
+drwxrwxr-x 2 cytopia 4096 Jun  1 08:44 mariadb-10.0/
+drwxrwxr-x 2 cytopia 4096 Jun  1 08:44 mariadb-10.1/
+drwxrwxr-x 2 cytopia 4096 Jun  1 08:44 mariadb-10.2/
+drwxrwxr-x 2 cytopia 4096 Jun  1 08:44 mariadb-10.3/
+drwxrwxr-x 2 cytopia 4096 Jun 13 13:18 mysql-5.5/
+drwxrwxr-x 2 cytopia 4096 Jun  1 08:44 mysql-5.6/
+drwxrwxr-x 2 cytopia 4096 Jun  1 08:44 mysql-5.7/
+drwxrwxr-x 2 cytopia 4096 Jun  1 08:44 mysql-8.0/
+```
+
+Each of the above folders will hold an example configuration file named `devilbox-custom.cnf-example` which shows some example settings but will **not have** any effect yet. Only files ending by **`.cnf`** will be sourced and applied, so you must copy it (or create a new file) to something that ends by `*.cnf`.
+
+In order to edit settings for MySQL 5.5, go into that folder, copy the example file and adjust ist:
+
+```shell
+# Copy to file ending by *.ini
+$ cd cfg/mysql-5.5
+$ cp devilbox-custom.cnf-example devilbox-custom.cnf
+
+# Edit settings
+$ vi devilbox-custom.cnf
+```
+
+Change will take effect after restarting the devilbox.
+
+
 #### 4.5 PostgreSQL
 ##### 4.5.1 Root user
 ##### 4.5.2 Root password