Describe the bug

When I try to login with correct login and password I'm getting an following error: mysqli::real_connect(): (HY000/2002): Permission denied

To Reproduce

(0. Setup phpMyAdmin;)

1. Open phpMyAdmin;
2. Enter correct login and password;
3. Press "Go" button.

Expected behavior

I successfully login as entered user and can see databases and can do something with them.

Screenshots

Server configuration

• Operating system: CentOS 8
• Web server: nginx/1.18.0
• Database version: mysql Ver 8.0.22 for Linux on x86_64 (MySQL Community Server - GPL)
• PHP version: PHP 7.4.13 (cli) (built: Nov 24 2020 10:03:34) ( NTS ) Copyright (c) The PHP Group Zend Engine v3.4.0, Copyright (c) Zend Technologies with Zend OPcache v7.4.13, Copyright (c), by Zend Technologies
• phpMyAdmin version: 5.0.4

Client configuration

• Browser: Chrome 87.0.4280.88
• Operating system: Windows 10 Home Single Language

Additional context

Described error happens with this setting's value: $cfg['Servers'][$i]['host'] = 'localhost';. When I changing value of this setting to 127.0.0.1 instead of localhost and entering with correct login and password nothing happens (just reloads page)