diff --git a/package_linter.py b/package_linter.py
index c7a3244..ee9a7d1 100755
--- a/package_linter.py
+++ b/package_linter.py
@@ -1565,30 +1565,31 @@ class Configurations(TestSuite):
     @test()
     def bind_public_ip(self):
         app = self.app
-        for filename in (
-            os.listdir(app.path + "/conf") if os.path.exists(app.path + "/conf") else []
+        for path, subdirs, files in (
+            os.walk(app.path + "/conf") if os.path.exists(app.path + "/conf") else []
         ):
-            try:
-                content = open(app.path + "/conf/" + filename).read()
-            except Exception as e:
-                yield Warning("Can't open/read %s: %s" % (filename, e))
-                return
+            for filename in files:
+                try:
+                    content = open(os.path.join(path, filename)).read()
+                except Exception as e:
+                    yield Warning("Can't open/read %s: %s" % (os.path.join(path, filename), e))
+                    return
 
-            for number, line in enumerate(content.split("\n"), 1):
-                comment = ("#", "//", ";")
-                if (
-                    ( "0.0.0.0" in line or "::" in line )
-                    and not line.strip().startswith(comment)
-                ):
-                    for ip in re.split("[ \t,='\"(){}\[\]]", line):
-                        if ip == "::" or ip.startswith("0.0.0.0"):
-                            yield Info(
-                                f"{filename}:{number}: Binding to '0.0.0.0' or '::' can result "
-                                "in a security issue as the reverse proxy and the SSO can be "
-                                "bypassed by knowing a public IP (typically an IPv6) and the "
-                                "app port. lease be sure that this behavior is intentional. "
-                                "Maybe use '127.0.0.1' or '::1' instead."
-                            )
+                for number, line in enumerate(content.split("\n"), 1):
+                    comment = ("#", "//", ";")
+                    if (
+                        ( "0.0.0.0" in line or "::" in line )
+                        and not line.strip().startswith(comment)
+                    ):
+                        for ip in re.split("[ \t,='\"(){}\[\]]", line):
+                            if ip == "::" or ip.startswith("0.0.0.0"):
+                                yield Info(
+                                    f"{os.path.join(path, filename)}:{number}: Binding to '0.0.0.0' or '::' can result "
+                                    "in a security issue as the reverse proxy and the SSO can be "
+                                    "bypassed by knowing a public IP (typically an IPv6) and the "
+                                    "app port. lease be sure that this behavior is intentional. "
+                                    "Maybe use '127.0.0.1' or '::1' instead."
+                                )
 
 #############################################
 #   __  __             _  __          _     #