ZacharyZhang-NY/omarchycn
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Cleanup duplication

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This commit is contained in:
David Heinemeier Hansson
2026-02-21 08:52:02 +01:00
parent d1757b25f3
commit 8e38f70832
1 changed files with 28 additions and 46 deletions
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bin/omarchy-setup-dns
+28 -46
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@@ -1,5 +1,28 @@
#!/bin/bash
lock_dns_to_resolved() {
for file in /etc/systemd/network/*.network; do
[[ -f "$file" ]] || continue
if ! grep -q "^\[DHCPv4\]" "$file"; then continue; fi
if ! sed -n '/^\[DHCPv4\]/,/^\[/p' "$file" | grep -q "^UseDNS="; then
sudo sed -i '/^\[DHCPv4\]/a UseDNS=no' "$file"
fi
if grep -q "^\[IPv6AcceptRA\]" "$file" && ! sed -n '/^\[IPv6AcceptRA\]/,/^\[/p' "$file" | grep -q "^UseDNS="; then
sudo sed -i '/^\[IPv6AcceptRA\]/a UseDNS=no' "$file"
fi
done
}
unlock_dns_to_dhcp() {
for file in /etc/systemd/network/*.network; do
[[ -f "$file" ]] || continue
sudo sed -i '/^\[DHCPv4\]/{n;/^UseDNS=no$/d}' "$file"
sudo sed -i '/^\[IPv6AcceptRA\]/{n;/^UseDNS=no$/d}' "$file"
done
}
if [[ -z $1 ]]; then
dns=$(gum choose --height 5 --header "Select DNS provider" Cloudflare DHCP Custom)
else
@@ -14,24 +37,7 @@ DNS=1.1.1.1#cloudflare-dns.com 1.0.0.1#cloudflare-dns.com
FallbackDNS=9.9.9.9 149.112.112.112
DNSOverTLS=opportunistic
EOF
# Ensure network interfaces don't override our DNS settings
for file in /etc/systemd/network/*.network; do
[[ -f "$file" ]] || continue
if ! grep -q "^\[DHCPv4\]" "$file"; then continue; fi
# Add UseDNS=no to DHCPv4 section if not present
if ! sed -n '/^\[DHCPv4\]/,/^\[/p' "$file" | grep -q "^UseDNS="; then
sudo sed -i '/^\[DHCPv4\]/a UseDNS=no' "$file"
fi
# Add UseDNS=no to IPv6AcceptRA section if present
if grep -q "^\[IPv6AcceptRA\]" "$file" && ! sed -n '/^\[IPv6AcceptRA\]/,/^\[/p' "$file" | grep -q "^UseDNS="; then
sudo sed -i '/^\[IPv6AcceptRA\]/a UseDNS=no' "$file"
fi
done
sudo systemctl restart systemd-networkd systemd-resolved
lock_dns_to_resolved
;;
DHCP)
@@ -39,21 +45,14 @@ DHCP)
[Resolve]
DNSOverTLS=no
EOF
# Allow network interfaces to use DHCP DNS
for file in /etc/systemd/network/*.network; do
[[ -f "$file" ]] || continue
sudo sed -i '/^UseDNS=no/d' "$file"
done
sudo systemctl restart systemd-networkd systemd-resolved
unlock_dns_to_dhcp
;;
Custom)
echo "Enter your DNS servers (space-separated, e.g. '192.168.1.1 1.1.1.1'):"
read -r dns_servers
if [[ -z "$dns_servers" ]]; then
if [[ -z $dns_servers ]]; then
echo "Error: No DNS servers provided."
exit 1
fi
@@ -63,25 +62,8 @@ Custom)
DNS=$dns_servers
FallbackDNS=9.9.9.9 149.112.112.112
EOF
# Ensure network interfaces don't override our DNS settings
for file in /etc/systemd/network/*.network; do
[[ -f "$file" ]] || continue
if ! grep -q "^\[DHCPv4\]" "$file"; then continue; fi
# Add UseDNS=no to DHCPv4 section if not present
if ! sed -n '/^\[DHCPv4\]/,/^\[/p' "$file" | grep -q "^UseDNS="; then
sudo sed -i '/^\[DHCPv4\]/a UseDNS=no' "$file"
fi
# Add UseDNS=no to IPv6AcceptRA section if present
if grep -q "^\[IPv6AcceptRA\]" "$file" && ! sed -n '/^\[IPv6AcceptRA\]/,/^\[/p' "$file" | grep -q "^UseDNS="; then
sudo sed -i '/^\[IPv6AcceptRA\]/a UseDNS=no' "$file"
fi
done
sudo systemctl restart systemd-networkd systemd-resolved
lock_dns_to_resolved
;;
esac
sudo systemctl restart systemd-networkd systemd-resolved