Hosts File Entries To Block Adobe Activation Mac Better [ Secure – Checklist ]

To effectively block Adobe activation on a Mac using the hosts file, let's first understand how the hosts file works and then explore a more comprehensive approach to blocking Adobe's activation servers.

Testing If It Worked

Open Terminal and ping one of the blocked domains:

ping licensing.adobe.com

If you see ping: cannot resolve licensing.adobe.com: Unknown host or it replies from 127.0.0.1, your block is active. hosts file entries to block adobe activation mac better

Then, open Adobe Photoshop or Premiere. Go to Help > System Info. Scroll down—if you see License: Valid but network requests fail, you’ve succeeded.

Important Caveats & Warnings

Step 1: Disable SIP (System Integrity Protection) – Temporary

On macOS El Capitan and later, SIP protects /etc/hosts. You don’t need to fully disable SIP – only disable authentication for hosts file editing.
Better method: Use sudo with a text editor that respects SIP’s read-only flag. To effectively block Adobe activation on a Mac

1. Reboot your Mac into Recovery Mode (Apple Silicon: hold power button; Intel: Cmd + R at startup).
2. Open Terminal in Recovery Mode.
3. Type: csrutil enable --without fs
   (This keeps SIP on but allows file system modifications to /etc).
4. Reboot normally.

Alternative: If you don’t want to touch SIP, edit a copy of /etc/hosts in ~/Desktop, then overwrite it using sudo cp ~/Desktop/hosts /etc/ in Terminal. SIP may still block it on some macOS versions – if so, use Recovery Mode.

The Hosts Entries (Copy & Paste)

Open Terminal and run: sudo nano /etc/hosts If you see ping: cannot resolve licensing

Enter your password, then add these entries at the bottom of the file:

# Adobe Activation & License Blocklist (macOS Optimized)
127.0.0.1 adobe.com
127.0.0.1 www.adobe.com
127.0.0.1 activate.adobe.com
127.0.0.1 practivate.adobe.com
127.0.0.1 lmlicenses.apache.org
127.0.0.1 lm.licenses.adobe.com
127.0.0.1 na1r.services.adobe.com
127.0.0.1 hlrcv.stage.adobe.com
127.0.0.1 licensing.adobe.com
127.0.0.1 license.adobe.com
127.0.0.1 adobe.licensing.domain
127.0.0.1 3dns-2.adobe.com
127.0.0.1 3dns-3.adobe.com
127.0.0.1 wip.adobe.com
127.0.0.1 wwis-dubc1-vip60.adobe.com
127.0.0.1 genuine.adobe.com
127.0.0.1 prod.adobegenuine.com
127.0.0.1 cc-api-data.adobe.io
127.0.0.1 adobeereg.com
127.0.0.1 www.adobeereg.com
127.0.0.1 wwis-dubc1-vip60.adobe.com
127.0.0.1 crl.verisign.net
127.0.0.1 ocsp.verisign.com
127.0.0.1 CRL.VERISIGN.NET
127.0.0.1 OSCP.VERISIGN.COM
3. Periodic Reactivation
Even with perfect hosts blocking, Adobe apps embed timers. Once every ~90 days, they attempt re-validation. If your hosts file is active, the app simply fails to validate and continues working. If not, it deactivates. So this method is reliable if you never remove the entries.