2024-12-27 21:51:35 +01:00
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#!/bin/bash
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2025-06-03 22:41:00 +02:00
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# Enable systemd-resolved
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2024-12-28 14:02:23 +01:00
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sudo systemctl enable systemd-resolved
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2025-06-03 22:41:00 +02:00
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# Remove all attributes from /etc/hosts to allow modifications
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sudo chattr -i -a /etc/hosts 2>/dev/null || true
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# Copy the hosts file
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2024-12-27 21:49:30 +01:00
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sudo cp hosts /etc/hosts
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2025-06-03 22:41:00 +02:00
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# Set restrictive permissions (read-only for owner, no access for group/others)
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sudo chmod 600 /etc/hosts
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# Make the file immutable (prevents deletion, renaming, and most modifications)
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sudo chattr +i /etc/hosts
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# Also set append-only attribute as additional protection
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# Note: This requires removing immutable first, then setting both
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sudo chattr -i /etc/hosts
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sudo chattr +a /etc/hosts
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# Flush DNS caches
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sudo systemd-resolve --flush-caches
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