c0770fc7a3
Implements DHH's requirement to ensure wlan0 and ethernet interfaces respect the DNS configuration while excluding docker/loop interfaces. When using Cloudflare or Custom DNS: - Sets UseDNS=no in DHCPv4 sections - Sets UseDNS=no in IPv6AcceptRA sections - Only configures primary interfaces (en*, eth*, wl*) - Restarts both systemd-networkd and systemd-resolved When using DHCP: - Removes UseDNS=no to allow DHCP provided DNS - Restores default behavior for all interfaces Script size increased from 58 to 89 lines to properly handle all network interfaces as requested.
90 lines
2.4 KiB
Bash
Executable File
90 lines
2.4 KiB
Bash
Executable File
#!/bin/bash
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if [[ -z $1 ]]; then
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dns=$(gum choose --height 5 --header "Select DNS provider" Cloudflare DHCP Custom)
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else
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dns=$1
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fi
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case "$dns" in
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Cloudflare)
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sudo tee /etc/systemd/resolved.conf >/dev/null <<'EOF'
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[Resolve]
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DNS=1.1.1.1#cloudflare-dns.com 1.0.0.1#cloudflare-dns.com
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FallbackDNS=8.8.8.8#dns.google 8.8.4.4#dns.google
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DNSOverTLS=opportunistic
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EOF
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# Ensure network interfaces don't override our DNS settings
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for file in /etc/systemd/network/*.network; do
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[[ -f "$file" ]] || continue
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if ! grep -q "^\[DHCPv4\]" "$file"; then continue; fi
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# Add UseDNS=no to DHCPv4 section if not present
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if ! sed -n '/^\[DHCPv4\]/,/^\[/p' "$file" | grep -q "^UseDNS="; then
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sudo sed -i '/^\[DHCPv4\]/a UseDNS=no' "$file"
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fi
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# Add UseDNS=no to IPv6AcceptRA section if present
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if grep -q "^\[IPv6AcceptRA\]" "$file" && ! sed -n '/^\[IPv6AcceptRA\]/,/^\[/p' "$file" | grep -q "^UseDNS="; then
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sudo sed -i '/^\[IPv6AcceptRA\]/a UseDNS=no' "$file"
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fi
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done
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sudo systemctl restart systemd-networkd systemd-resolved
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;;
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DHCP)
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sudo tee /etc/systemd/resolved.conf >/dev/null <<'EOF'
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[Resolve]
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DNS=
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FallbackDNS=
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DNSOverTLS=no
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EOF
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# Allow network interfaces to use DHCP DNS
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for file in /etc/systemd/network/*.network; do
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[[ -f "$file" ]] || continue
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sudo sed -i '/^UseDNS=no/d' "$file"
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done
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sudo systemctl restart systemd-networkd systemd-resolved
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;;
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Custom)
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echo "Enter your DNS servers (space-separated, e.g. '192.168.1.1 1.1.1.1'):"
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read -r dns_servers
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if [[ -z "$dns_servers" ]]; then
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echo "Error: No DNS servers provided."
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exit 1
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fi
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sudo tee /etc/systemd/resolved.conf >/dev/null <<EOF
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[Resolve]
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DNS=$dns_servers
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FallbackDNS=1.1.1.1 8.8.8.8
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EOF
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# Ensure network interfaces don't override our DNS settings
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for file in /etc/systemd/network/*.network; do
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[[ -f "$file" ]] || continue
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if ! grep -q "^\[DHCPv4\]" "$file"; then continue; fi
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# Add UseDNS=no to DHCPv4 section if not present
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if ! sed -n '/^\[DHCPv4\]/,/^\[/p' "$file" | grep -q "^UseDNS="; then
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sudo sed -i '/^\[DHCPv4\]/a UseDNS=no' "$file"
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fi
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# Add UseDNS=no to IPv6AcceptRA section if present
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if grep -q "^\[IPv6AcceptRA\]" "$file" && ! sed -n '/^\[IPv6AcceptRA\]/,/^\[/p' "$file" | grep -q "^UseDNS="; then
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sudo sed -i '/^\[IPv6AcceptRA\]/a UseDNS=no' "$file"
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fi
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done
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sudo systemctl restart systemd-networkd systemd-resolved
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;;
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esac
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