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Logging In – Advanced Administration Handbook | Developer.WordPress.org Logging In In this article Table of Contents Accessing the Login Page Login Form Fields Login Cookies Cookie Configuration Troubleshooting Login Issues “Cookies are blocked or not supported” Login Redirect Loop “Too many redirects” Resetting Your Password Standard Password Recovery Technical Password Reset Methods Additional Resources ↑ Back to top This guide covers WordPress authentication – accessing your site, managing login sessions, and resetting passwords. Accessing the Login Page The WordPress login page is located at wp-login.php in your site’s root directory: https://example.com/wp-login.php (새 창에서 열림) Visiting /wp-admin/ while logged out redirects to the login page automatically. Login Form Fields Username or Email Address: Enter either your username or the email associated with your account Password: Your account password (case-sensitive) Remember Me: Keeps you logged in for 14 days instead of the default session length Login Cookies WordPress uses cookies to manage authentication. Understanding these helps with troubleshooting and security configuration. Cookie Purpose wordpress_[hash] Authentication cookie (for insecure/non-HTTPS logins) wordpress_logged_in_[hash] Indicates logged-in status to the frontend wordpress_sec_[hash] Secure authentication cookie (for HTTPS logins) Note: The wordpress_sec_[hash] cookie is used when you log in over a secure connection (HTTPS), which is strongly recommended for all sites. Non-secure logins (HTTP) are vulnerable to credential theft and should be avoided. Default expiration: 2 days (48 hours). When Remember Me is checked, cookies persist for 14 days. When WordPress needs to check an authentication cookie, it uses wp_validate_auth_cookie(). The function validates the cookie, checks whether it has expired, verifies the cookie hash, and returns the user ID when the cookie is valid. Cookie Configuration Changing cookie expiration requires the auth_cookie_expiration filter. Add to your theme’s functions.php or a custom plugin: add_filter( 'auth_cookie_expiration', 'custom_cookie_expiration', 10, 3 ); function custom_cookie_expiration( $length, $user_id, $remember ) { if ( $remember ) { return 30 DAY_IN_SECONDS; // 30 days when "Remember Me" is checked } return 2 DAY_IN_SECONDS; // 2 days for standard login (default) } Cookie domain can be set in wp-config.php for subdomain sharing: define( 'COOKIE_DOMAIN', '.example.com' ); Troubleshooting Login Issues “Cookies are blocked or not supported” This error appears when WordPress cannot set the test cookie (wordpress_test_cookie) or authentication cookies: Browser settings: Ensure cookies are enabled for your site Plugin conflicts: Disable plugins temporaril

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