diff --git a/crates/credentials/src/constants.rs b/crates/credentials/src/constants.rs
index b73968bfd..ee5781446 100644
--- a/crates/credentials/src/constants.rs
+++ b/crates/credentials/src/constants.rs
@@ -66,7 +66,7 @@ mod tests {
 
         // In production environment, access key and secret key should be different
         // These are default values, so being the same is acceptable, but should be warned in documentation
-        println!("Warning: Default access key and secret key are the same. Change them in production!");
+        assert_eq!(DEFAULT_ACCESS_KEY, DEFAULT_SECRET_KEY);
     }
 
     #[test]
@@ -74,10 +74,8 @@ mod tests {
         // Test security best practices
 
         // These are default values, should be changed in production environments
-        println!("Security Warning: Default credentials detected!");
-        println!("Access Key: {DEFAULT_ACCESS_KEY}");
-        println!("Secret Key: {DEFAULT_SECRET_KEY}");
-        println!("These should be changed in production environments!");
+        assert_eq!(DEFAULT_ACCESS_KEY, "rustfsadmin");
+        assert_eq!(DEFAULT_SECRET_KEY, "rustfsadmin");
 
         // Verify that key lengths meet minimum security requirements
         assert!(DEFAULT_ACCESS_KEY.len() >= 8, "Access key should be at least 8 characters");
diff --git a/deploy/build/rustfs.service b/deploy/build/rustfs.service
index 72ac1123a..4482edacb 100644
--- a/deploy/build/rustfs.service
+++ b/deploy/build/rustfs.service
@@ -16,8 +16,12 @@ Group=rustfs
 # working directory
 WorkingDirectory=/opt/rustfs
 
-# environment variable configuration and main program (single active ExecStart).
+# environment variable configuration and main program (Option 1: Directly specify arguments)
 # Credentials are loaded from /etc/default/rustfs below. Replace the sample values before deployment.
+ExecStart=/usr/local/bin/rustfs \
+    --address 0.0.0.0:9000 \
+    --volumes /data/rustfs/vol1,/data/rustfs/vol2 \
+    --console-enable
 
 # environment variable configuration (Option 2: Use environment variables)
 # rustfs example file see: `../config/rustfs.env`