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fix: add numa search domain on install for browser compatibility

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Chrome treats single-label TLDs (e.g. frontend.numa) as search
queries unless a trailing slash is added. Adding "numa" as a search
domain tells the OS resolver that .numa is valid, so browsers
resolve it directly.

macOS: networksetup -setsearchdomains, cleared on uninstall
Linux (resolved): Domains=~. numa in drop-in
Linux (resolv.conf): search numa

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Razvan Dimescu
2026-04-02 17:50:22 +03:00
parent 6a70ab0f1b
commit ad7884f2f6
1 changed files with 13 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
src/system_dns.rs
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@@ -776,7 +776,7 @@ fn install_macos() -> Result<(), String> {
.map_err(|e| format!("failed to serialize backup: {}", e))?;
std::fs::write(backup_path(), json).map_err(|e| format!("failed to write backup: {}", e))?;
// Set DNS to 127.0.0.1 for each service
// Set DNS to 127.0.0.1 and add "numa" search domain for each service
for service in &services {
let status = std::process::Command::new("networksetup")
.args(["-setdnsservers", service, "127.0.0.1"])
@@ -788,6 +788,11 @@ fn install_macos() -> Result<(), String> {
} else {
eprintln!(" warning: failed to set DNS for \"{}\"", service);
}
// Add "numa" as search domain so browsers resolve .numa without trailing slash
let _ = std::process::Command::new("networksetup")
.args(["-setsearchdomains", service, "numa"])
.status();
}
eprintln!("\n Original DNS saved to {}", backup_path().display());
@@ -832,6 +837,11 @@ fn uninstall_macos() -> Result<(), String> {
} else {
eprintln!(" warning: failed to restore DNS for \"{}\"", service);
}
// Clear the "numa" search domain
let _ = std::process::Command::new("networksetup")
.args(["-setsearchdomains", service, "Empty"])
.status();
}
std::fs::remove_file(&path).ok();
@@ -1092,7 +1102,7 @@ fn install_linux() -> Result<(), String> {
let drop_in = resolved_dir.join("numa.conf");
std::fs::write(
&drop_in,
"[Resolve]\nDNS=127.0.0.1\nDomains=~.\nDNSStubListener=no\n",
"[Resolve]\nDNS=127.0.0.1\nDomains=~. numa\nDNSStubListener=no\n",
)
.map_err(|e| format!("failed to write {}: {}", drop_in.display(), e))?;
@@ -1130,7 +1140,7 @@ fn install_linux() -> Result<(), String> {
}
let content =
"# Generated by Numa — run 'sudo numa uninstall' to restore\nnameserver 127.0.0.1\n";
"# Generated by Numa — run 'sudo numa uninstall' to restore\nnameserver 127.0.0.1\nsearch numa\n";
std::fs::write(resolv, content)
.map_err(|e| format!("failed to write /etc/resolv.conf: {}", e))?;