Start hereBy platform
How to Edit the Host File
Step-by-step guide for Windows, macOS and Linux with admin tips, DNS flush, and FAQ.
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Hosts File Guides
Everything you need to edit, understand, and troubleshoot the hosts file, organized by platform and use case.
Most searched guides
PopularDNS & local HTTPS
Flush DNS on macOS 26 Tahoe
Tahoe-specific flush command, verification, and browser cache.
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Sleezr Team
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PopularBy platform
Edit Hosts File on Windows 10 & 11
Exact path, Notepad, PowerShell, and DNS flush.
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Sleezr Team
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PopularDNS & local HTTPS
Local HTTPS with mkcert on Mac
Trusted HTTPS for localhost, .test domains, Vite and Next.js.
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Sleezr Team
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PopularDNS & local HTTPS
Flush DNS Cache on Mac
Copy the macOS flush DNS command after hosts or DNS changes.
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Sleezr Team
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PopularBy platform
Edit Hosts File on Mac
Terminal vs GUI, sudo nano, and DNS flush.
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Sleezr Team
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By platform
By platform
Edit Hosts File on Windows 10 & 11
Exact path, Notepad, PowerShell, and DNS flush.
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Sleezr Team
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By platform
Edit Hosts File on Ubuntu / Linux
/etc/hosts with nano or vim and systemd-resolved flush.
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Sleezr Team
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DNS & local HTTPS
DNS & local HTTPS
Flush DNS Cache on Mac
Copy the macOS flush DNS command after hosts or DNS changes.
L
Sleezr Team
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DNS & local HTTPS
Flush DNS on macOS 26 Tahoe
Tahoe-specific flush command, verification, and browser cache.
L
Sleezr Team
Read guide →
DNS & local HTTPS
Local HTTPS with mkcert on Mac
Trusted HTTPS for localhost, .test domains, Vite and Next.js.
L
Sleezr Team
Read guide →
DNS & local HTTPS
Flush DNS Cache on Linux
systemd-resolved, NetworkManager, and Ubuntu 24.04 commands.
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Sleezr Team
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Troubleshooting
Troubleshooting
Edit Hosts File as Administrator
Why admin rights are required and how to fix permission errors.
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Sleezr Team
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Troubleshooting
Hosts File Changes Not Working
DNS cache, browser cache, and DNS blockers.
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Sleezr Team
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Troubleshooting
Hosts File Permission Denied
Fix access denied on Windows, Mac and Linux.
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Sleezr Team
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Troubleshooting
Is Editing the Hosts File Safe?
Risks, backups, and when to use hosts vs DNS.
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Sleezr Team
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Reference
Use cases
Use cases
Block a Website with the Hosts File
Redirect domains to 0.0.0.0 or 127.0.0.1.
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Sleezr Team
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Use cases
Block Ads with the Hosts File
Ad-blocking lists and limitations vs Pi-hole.
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Sleezr Team
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Use cases
Manage Multiple Hosts Configurations
Switch between dev, staging and production profiles.
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Sleezr Team
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Use cases
Best Hosts File Editors for Mac
Compare Sleezr, SwitchHosts, Gas Mask and Terminal.
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Sleezr Team
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Use cases
Best Hosts File Editors for Windows
Compare Sleezr, PowerToys, and classic Windows editors.
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Sleezr Team
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