{"id":373,"date":"2010-09-13T05:00:28","date_gmt":"2010-09-13T11:00:28","guid":{"rendered":"http:\/\/blog.supportpro.com\/2010\/09\/how-to-fix-cpanel-remote-mysql-issue-having-the-error-message-warning-2-mysql_connect-ok-packet-6-bytes-shorter-than-expected-line-34-in-file-cinetpublocal_intranetwebsite_updater-php\/"},"modified":"2026-05-22T00:13:48","modified_gmt":"2026-05-22T06:13:48","slug":"fix-cpanel-remote-mysql-issue-ok-packet-error","status":"publish","type":"post","link":"https:\/\/www.supportpro.com\/blog\/fix-cpanel-remote-mysql-issue-ok-packet-error\/","title":{"rendered":"How to Fix cPanel Remote MySQL Issue with OK Packet Error ?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The cPanel remote MySQL issue with the error message:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>WARNING &#91;2] mysql_connect(): OK packet 6 bytes shorter than expected<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">usually occurs when attempting to connect remotely to a MySQL database from an external application or server. This issue is commonly related to MySQL authentication settings, old password formats, or incorrect remote MySQL configuration.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In this guide, we will explain how to diagnose and fix the cPanel remote MySQL issue step by step.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Understanding the Error<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The error message may appear similar to the following:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>WARNING &#91;2] mysql_connect(): OK packet 6 bytes shorter than expected,\nLine: 34 in file C:\\inetpub\\local_intranet\\website_updater.php<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This indicates that the remote application is unable to communicate properly with the MySQL server because of authentication or protocol compatibility issues.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Common Causes of cPanel Remote MySQL Issue<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Some common reasons for this issue include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Incorrect MySQL server details<\/li>\n\n\n\n<li>Invalid MySQL username or password<\/li>\n\n\n\n<li>Remote MySQL access not enabled in cPanel<\/li>\n\n\n\n<li>Old MySQL password authentication enabled<\/li>\n\n\n\n<li>MySQL client and server version mismatch<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Step 1: Verify Remote MySQL Connection Settings<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Before troubleshooting further, confirm that the following MySQL connection parameters are correct:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><div class=\"pcrstb-wrap\"><table class=\"has-fixed-layout\"><thead><tr><th>Parameter<\/th><th>Value<\/th><\/tr><\/thead><tbody><tr><td>MySQL Server<\/td><td>Server IP Address<\/td><\/tr><tr><td>Port<\/td><td>3306<\/td><\/tr><tr><td>Username<\/td><td>MySQL username<\/td><\/tr><tr><td>Password<\/td><td>MySQL user password<\/td><\/tr><\/tbody><\/table><\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Example:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Server IP: <code>192.168.1.10<\/code><\/li>\n\n\n\n<li>Port: <code>3306<\/code><\/li>\n\n\n\n<li>Username: <code>username_test<\/code><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Also ensure that the remote IP address is added in the <strong>Remote MySQL<\/strong> section inside cPanel.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Step 2: Test Remote MySQL Connection<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Login to the remote Linux server and test the MySQL connection manually.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mysql -h server_ip -u my_sql_username -p<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Example:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mysql -h 192.168.1.10 -u username_test -p<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">After entering the password, successful output should look similar to this:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Welcome to the MySQL monitor.\n\nYour MySQL connection id is 15054\nServer version: 5.0.9-community MySQL Community Edition (GPL)\n\nmysql> show databases;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">If the databases are displayed correctly, then the remote connection is working properly.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the cPanel Remote MySQL Issue<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If the error still appears, follow the steps below.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step A: Edit MySQL Configuration File<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Open the MySQL configuration file:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>vi \/etc\/my.cnf<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Step B: Modify <code>old-passwords<\/code> Setting<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Locate the following line:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>old-passwords = 1<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Change it to:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#old-passwords = 1<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This disables old password authentication temporarily.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step C: Restart MySQL Service<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Restart the MySQL service after saving the changes.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>service mysql restart<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">or on some systems:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl restart mysqld<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Step D: Reset the MySQL User Password<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Change the password of the MySQL user. You can use the same password again.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Example:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>SET PASSWORD FOR 'mysql_user'@'host' = PASSWORD('your_password');<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This updates the password using the newer authentication format.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step E: Re-enable the Old Password Line<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Now uncomment the line again if required.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>old-passwords = 1<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Step F: Restart MySQL Again<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Restart MySQL once more for the changes to take effect.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>service mysql restart<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Why This Fix Works<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Older MySQL password formats may not work correctly with newer clients or remote applications. Temporarily disabling <code>old-passwords<\/code> allows MySQL to regenerate the password using the updated authentication method.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This resolves protocol mismatch issues that cause the:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>OK packet 6 bytes shorter than expected<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">error during remote MySQL connections.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Additional Troubleshooting Tips<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If the issue continues, also verify:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Firewall allows port <code>3306<\/code><\/li>\n\n\n\n<li>Remote MySQL access is enabled in cPanel<\/li>\n\n\n\n<li>Correct hostname or IP address is used<\/li>\n\n\n\n<li>SELinux is not blocking MySQL connections<\/li>\n\n\n\n<li>MySQL service is running properly<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The cPanel remote MySQL issue with the error message \u201cWARNING [2] mysql_connect(): OK packet 6 bytes shorter than expected\u201d is commonly caused by old password authentication settings or incorrect remote MySQL configuration.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">By verifying the connection details, testing remote access, updating the <code>old-passwords<\/code> setting, and resetting the MySQL user password, you can successfully resolve the issue and restore remote database connectivity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you require help, <a href=\"https:\/\/www.supportpro.com\/requestquote.php\">contact SupportPRO Server Admin<\/a><\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><span id=\"hs-cta-wrapper-9d590242-d641-4383-94b4-8cfd62f0af6b\" class=\"hs-cta-wrapper\"><span id=\"hs-cta-9d590242-d641-4383-94b4-8cfd62f0af6b\" class=\"hs-cta-node hs-cta-9d590242-d641-4383-94b4-8cfd62f0af6b\"><a href=\"https:\/\/cta-redirect.hubspot.com\/cta\/redirect\/2725694\/9d590242-d641-4383-94b4-8cfd62f0af6b\"><\/a><\/span><\/span><\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center has-white-background-color has-background\"><div class=\"wp-block-media-text__content\">\n<p class=\"has-large-font-size wp-block-paragraph\">Facing issues? <\/p>\n\n\n\n<p class=\"has-large-font-size wp-block-paragraph\">Our technical support<br>engineers can solve it. <\/p>\n\n\n\n<!--HubSpot Call-to-Action Code --><span class=\"hs-cta-wrapper\" id=\"hs-cta-wrapper-3350a795-db50-482f-9911-301930d1b1be\"><span class=\"hs-cta-node hs-cta-3350a795-db50-482f-9911-301930d1b1be\" id=\"hs-cta-3350a795-db50-482f-9911-301930d1b1be\"><!--[if lte IE 8]><div id=\"hs-cta-ie-element\"><\/div><![endif]--><a href=\"https:\/\/cta-redirect.hubspot.com\/cta\/redirect\/2725694\/3350a795-db50-482f-9911-301930d1b1be\" ><img decoding=\"async\" class=\"hs-cta-img\" id=\"hs-cta-img-3350a795-db50-482f-9911-301930d1b1be\" style=\"border-width:0px;\" src=\"https:\/\/no-cache.hubspot.com\/cta\/default\/2725694\/3350a795-db50-482f-9911-301930d1b1be.png\"  alt=\"Contact Us today!\"\/><\/a><\/span><script charset=\"utf-8\" src=\"https:\/\/js.hscta.net\/cta\/current.js\"><\/script><script type=\"text\/javascript\"> hbspt.cta.load(2725694, '3350a795-db50-482f-9911-301930d1b1be', {\"useNewLoader\":\"true\",\"region\":\"na1\"}); <\/script><\/span><!-- end HubSpot Call-to-Action Code -->\n<\/div><figure class=\"wp-block-media-text__media\"><img fetchpriority=\"high\" decoding=\"async\" width=\"904\" height=\"931\" src=\"https:\/\/www.supportpro.com\/blog\/wp-content\/uploads\/2022\/09\/Free-server-checkup.png\" alt=\"guy server checkup\" class=\"wp-image-12943 size-full\" srcset=\"https:\/\/www.supportpro.com\/blog\/wp-content\/uploads\/2022\/09\/Free-server-checkup.png 904w, https:\/\/www.supportpro.com\/blog\/wp-content\/uploads\/2022\/09\/Free-server-checkup-291x300.png 291w, https:\/\/www.supportpro.com\/blog\/wp-content\/uploads\/2022\/09\/Free-server-checkup-768x791.png 768w, https:\/\/www.supportpro.com\/blog\/wp-content\/uploads\/2022\/09\/Free-server-checkup-585x602.png 585w\" sizes=\"(max-width: 904px) 100vw, 904px\" \/><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"<p>The cPanel remote MySQL issue with the error message: usually occurs when attempting to connect remotely to a MySQL database from an external application or server. This issue is commonly&hellip;<\/p>\n","protected":false},"author":4,"featured_media":15238,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[5,1],"tags":[],"class_list":["post-373","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general-topics","category-miscellaneous"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Learn how to fix cPanel remote MySQL issue with the \u201cOK packet 6 bytes shorter than expected\u201d error using simple troubleshooting steps\" \/>\n\t<meta name=\"robots\" content=\"max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n\t<meta name=\"author\" content=\"SupportPRO Admin\"\/>\n\t<link rel=\"canonical\" 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