1 files changed, 5 insertions, 3 deletions
diff --git a/internal/namespace/launcher_src/launcher.c b/internal/namespace/launcher_src/launcher.c
index 4311430..e108da6 100644
--- a/internal/namespace/launcher_src/launcher.c
+++ b/internal/namespace/launcher_src/launcher.c
@@ -17,9 +17,11 @@ int main(int argc, char **argv) {
     uid_t current_uid = getuid();
     gid_t current_gid = getgid();
 
-    // 2. Combined Unshare for User and Network namespaces
-    if (unshare(CLONE_NEWUSER | CLONE_NEWNET) == -1) {
-        perror("unshare(CLONE_NEWUSER | CLONE_NEWNET)");
+    // 2. Combined Unshare for User, Mount, and Network namespaces
+    // We unshare Mount namespace (CLONE_NEWNS) to allow private /etc/resolv.conf setup
+    // without contaminating the host filesystem.
+    if (unshare(CLONE_NEWUSER | CLONE_NEWNS | CLONE_NEWNET) == -1) {
+        perror("unshare(CLONE_NEWUSER | CLONE_NEWNS | CLONE_NEWNET)");
         return 1;
     }