Guides, tutorials, and tips to master the hosts file and optimize your local development environment.
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How to flush or clear the DNS cache on Windows, Mac, Linux and Chrome. Copy the exact command for your system, learn what flushing DNS does and whether it is safe.
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Fix "localhost refused to connect" (ERR_CONNECTION_REFUSED) in Chrome, on Windows, Mac, XAMPP and VS Code: check the server, the port, IPv6 vs IPv4, hosts file and firewall.
Locahl Team
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Reset and restore the hosts file to its default contents on Windows, macOS and Linux. Copy the exact default file, back up first, then flush DNS so the reset takes effect.
Locahl Team
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Can you edit the hosts file without administrator rights? The honest answer plus real alternatives on Windows, Mac and Linux when you cannot elevate (proxy, Docker, local DNS, SSH).
Locahl Team
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Use subdomains on localhost: the free *.localhost trick browsers resolve automatically, fixed subdomains via the hosts file, and wildcard subdomains with dnsmasq on Mac and Linux.
Locahl Team
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The hosts file is ignored or /etc/hosts changes do not take effect? Fix it on Windows, Mac and Linux: flush DNS, check syntax, IPv6, line endings, resolver caches and save permissions.
Locahl Team
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Flush the DNS cache on Windows 10 and 11 with ipconfig /flushdns. Step-by-step command, verification, and fixes when changes still do not apply.
Locahl Team
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Flush the DNS cache on Linux with resolvectl flush-caches (systemd-resolved), plus nscd, dnsmasq and BIND. Commands by setup, with verification steps.
Locahl Team
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127.0.0.1 vs localhost explained: both point to your machine, but they differ in DNS resolution, IPv6, and hosts file behavior. When to use each, with examples.
Locahl Team
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