Troubleshoot
Troubleshooting is the process of eliminating error.
400: Bad request
- Check .htaccess file. A .htaccess file is a directory-level configuration file supported by several web servers, used for configuration of site-access issues, such as URL redirection, URL shortening, Access security control, and more.
401: http error
- Check .htaccess file
403: The 403 Forbidden error may mean that a file has bad permissions.
- Directories and folders must be 755. Executable scripts within the cgi-bin folder must be 755. Images, media, and text files like HTML should be 755 or 644.
- Check .htaccess file
- Disable plugins
- Mod security issue
404: File not found
- Check permalinks for wordpress
- Check .htaccess file
- Disable plugins
405: Not allowed
- Disable plugins
406: Not Acceptable error
- Mod security issue: Mod_security is a security module in the Apache web server that is enabled by default on all hosting accounts. If a site, page, or function violates one of these rules, server may send the 406 Not Acceptable error.
500: Internal server error. It is caused by concurrent processes over limit, domain propagation, .htaccess file issue or missing .htaccess file, plugins, bug in the program, running out of either disk space or inode
Can't see wordpress admin page or blank page or redirect to another site
- Check for malware: https://sitecheck.sucuri.net/
- Check .htaccess file
- Check file permissions
- Disable plugins
- Reset theme
Image not loading
- Check .htaccess file
Page cannot be displayed
- Check for A Record. A Record - points your domain or subdomain to an IP address (e.g. mydomain.com -> IP address)
- Check .htaccess file
- Check file permissions
- Account is suspended.
- Addon domain or addon domain folder does not exist.
- Domain is expired or hosting account is cancelled.
- Check for propagation using kproxy: http://kproxy.com/. Propagation is the time to process updating DNS across all nameservers.
Server not found
- Check leafdns to see if it points to current hosting provider: http://leafdns.com/
- Use temp url to access the site
- Domain registration error
- Domain either has wrong name servers or expires.
- Check for malware
Cloudflare
- Your sub domains must be redirected through cloud flares DNS editor. Go to cloud flare. Create A record for subdomain to point to your hosting provider just like the main domain. This happens any time domain is pointing to another name server.
Service temporarily unavailable for Magento
- Remove maintenance.flag; when Magento is performing certain tasks, it temporarily creates this file. Magento checks for its existence and if it's there, it will send users to the page you described. Also, Magento version 2.2 needs php version 7.0
Change password in vBulletin's database
- UPDATE `tablename`.`user` SET `password` = MD5(CONCAT(MD5('password'), `user`.`salt`)) WHERE `user`.`userid` = 1;
Email not received or delivery error
- Check your server
- Check if it is hosted locally or remotely
- Check your DNS
- Check your email limit
Microsoft Outlook
- Some people want to make subfolders in Outlook to organize their email. However, these folders are not store in the server. Instead, they are stored in the Outlook. If you delete an email account or uninstall Outlook, make sure that you make a backup, export the information to an Outlook Data File (.pst).
- If you want to migrate Outlook messages, contacts, calendar, tasks, notes, and subfolders from one computer to another or restore a backup of your Outlook data, Import and Export is the easiest way to complete the task. When you export, make sure that the Include subfolders box is checked so everything in your account, including mail, calendar, contacts, tasks, notes, and subfolders are exported.
- When you use Outlook, your email messages, calendar items, tasks, subfolders, and other items are saved on your computer. Outlook items that are saved on your computer are kept in Outlook Data Files (.pst). You can use that file to restore your email on your computer. The fastest way to open the folder where your Outlook Data file (.pst) is saved is to do the following:
- In Outlook, click the File tab.
- Click Account Settings, and then click Account Settings.
- On the Data Files tab, click an entry, and then click Open Folder Location: \Users\user\AppData\Local\Microsoft\Outlook.
Wordpress
- If the Wordpress plugin is not updated in more than 6 months it's likely been abandoned by the developer. When WordPress releases a new version, that plugin is no longer compatible. You will need use a similar plugin with the same or similar features.
- WordPress will automatically update even if you are on a vacation, so your site is up to date and secure.
Go to Settings -> Disable Updates Manager to configure your settings.
Alternatively, you can disable automatic updates in WordPress by adding this line of code in your wp-config.php file:
define( 'WP_AUTO_UPDATE_CORE', false );