MariaDB [(none)]> SELECT User,Host FROM mysql.user;
 +--------+-----------+
 | User   | Host      |
 +--------+-----------+
 | dba    | %         |
 | fcapdi | %         |
 | root   | 127.0.0.1 |
 | root   | ::1       |
 |        | localhost |
 | root   | localhost |
 |        | tester    |
 | root   | tester    |
 +--------+-----------+

GRANT ALL ON
    your_database_schema_name.* to
    'fcapdi'@'192.168.0.18' IDENTIFIED BY 'your_connection_password';

As an aside question under comments

SET PASSWORD FOR 'root'@'localhost' = PASSWORD('newPass123^');
SET PASSWORD FOR 'root'@'127.0.0.1' = PASSWORD('newPass123^');
SET PASSWORD FOR 'root'@'etc_etc' = PASSWORD('newPass123^');

you can also do it in a single update statement but it depends on your mysql version

create user 'joe1'@'localhost' identified by 'blah';
create user 'joe1'@'127.0.0.1' identified by 'afadfafsdblah2';
create user 'joe1'@'%' identified by 'djdjdjjdjdd';;


select user,host,password from mysql.user where user='joe1';
+------+-----------+-------------------------------------------+
| user | host      | password                                  |
+------+-----------+-------------------------------------------+
| joe1 | localhost | *0380BEA27363E56C37F0BFDA438F429080848051 |
| joe1 | %         | *7BEAF25E9BDFBDEF5A9B9E4A37023721B668FA51 |
| joe1 | 127.0.0.1 | *5CD978E569B31B1558E5C1D0972E6E02516893BF |
+------+-----------+-------------------------------------------+

update mysql.user set password=PASSWORD('nEW_COMMon_password762') where user='joe1';
-- 3 rows updated

select user,host,password from mysql.user where user='joe1';
+------+-----------+-------------------------------------------+
| user | host      | password                                  |
+------+-----------+-------------------------------------------+
| joe1 | localhost | *A248B352CE5BF750A11AA9BA253B5F191C721D1A |
| joe1 | %         | *A248B352CE5BF750A11AA9BA253B5F191C721D1A |
| joe1 | 127.0.0.1 | *A248B352CE5BF750A11AA9BA253B5F191C721D1A |
+------+-----------+-------------------------------------------+

drop user 'joe1'@'%';
drop user 'joe1'@'127.0.0.1';
drop user 'joe1'@'localhost';