{"id":180,"count":2,"description":"Practical hosting guides help you diagnose problems, plan changes, and check the result. Use the resources below to choose a starting point for DNS troubleshooting, WordPress maintenance, or VPS security. Each task needs a different approach: identify the affected service before changing settings, and keep a record of what you change.\n\n<strong>Find out why a domain does not resolve.<\/strong> Start with the <a href=\"https:\/\/www.dchost.com\/blog\/en\/website-not-resolving-fix-dns-probe-finished-nxdomain-and-common-dns-errors-step-by-step\/\">DNS troubleshooting guide<\/a> when a browser reports DNS_PROBE_FINISHED_NXDOMAIN or cannot find your website. Check the domain's nameservers and authoritative DNS records, then compare the answers returned by your local resolver. This helps distinguish a record problem from a cached response before you edit a working configuration.\n\n<strong>Investigate WordPress database overhead.<\/strong> The <a href=\"https:\/\/www.dchost.com\/blog\/en\/wordpress-database-optimization-guide-wp-options-autoload-and-table-bloat\/\">WordPress database optimization guide<\/a> explains wp_options, autoloaded data, and table bloat. Take a database backup before cleanup, identify which plugin owns a setting, and test changes on a staging copy when possible. Removing an unfamiliar option can break a feature even when its name looks obsolete.\n\n<strong>Strengthen access to a VPS.<\/strong> Follow the <a href=\"https:\/\/www.dchost.com\/blog\/en\/vps-security-hardening-checklist-sshd-config-fail2ban-auto-updates-and-no-root-ssh\/\">VPS security hardening checklist<\/a> for SSH settings, Fail2ban, and updates. Confirm that key authentication works for a separate administrative account before restricting root or password access. Keep an existing session open and make sure you can reach the server through its recovery console.\n\n<strong>Check the outcome and keep a recovery path.<\/strong> After each change, repeat the original test and inspect the relevant logs. For DNS, compare lookup results; for WordPress, test important pages and forms; for SSH, open a new connection before closing the old one. If the result is unexpected, restore the previous configuration and investigate one change at a time. Record the successful steps so future maintenance is easier to repeat.","link":"https:\/\/www.dchost.com\/blog\/en\/category\/how-to\/","name":"How To?","slug":"how-to","taxonomy":"category","parent":0,"meta":[],"_links":{"self":[{"href":"https:\/\/www.dchost.com\/blog\/en\/wp-json\/wp\/v2\/categories\/180","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dchost.com\/blog\/en\/wp-json\/wp\/v2\/categories"}],"about":[{"href":"https:\/\/www.dchost.com\/blog\/en\/wp-json\/wp\/v2\/taxonomies\/category"}],"wp:post_type":[{"href":"https:\/\/www.dchost.com\/blog\/en\/wp-json\/wp\/v2\/posts?categories=180"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}