diff --git a/src/config.rs b/src/config.rs
index 949c2d2..c5e0b11 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -1,5 +1,4 @@
 use serde::{Deserialize, Serialize};
-use rust_util::util_file;
 use rust_util::XResult;
 use std::fs;
 use acme_lib::DirectoryUrl;
@@ -27,10 +26,6 @@ impl Default for AcmeAlgo {
 }
 
 impl AcmeAlgo {
-    // pub fn parse_or_default(s: &str) -> AcmeAlgo {
-    //     Self::parse(s).unwrap_or_else(|_| Default::default())
-    // }
-
     pub fn parse(s: &str) -> XResult<AcmeAlgo> {
         match s {
             "ec256" => Ok(AcmeAlgo::Ec256),
@@ -57,10 +52,6 @@ impl Default for AcmeMode {
 }
 
 impl AcmeMode {
-    // pub fn parse_or_default(s: &str) -> AcmeMode {
-    //     Self::parse(s).unwrap_or_else(|_| Default::default())
-    // }
-
     pub fn parse(s: &str) -> XResult<AcmeMode> {
         match s {
             "prod" => Ok(AcmeMode::Prod),
@@ -77,30 +68,6 @@ impl AcmeMode {
     }
 }
 
-#[derive(Clone, Debug, Serialize, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub struct AcmeConfig {
-    pub email: String,
-    pub dir: String,
-    pub auth_timeout: Option<u64>,
-    pub csr_timeout: Option<u64>,
-    pub concurrent: Option<u32>,
-}
-
-impl AcmeConfig {
-    // pub fn get_auth_timeout(&self) -> u64 {
-    //     self.auth_timeout.unwrap_or(5_000)
-    // }
-    //
-    // pub fn get_csr_timeout(&self) -> u64 {
-    //     self.csr_timeout.unwrap_or(5_000)
-    // }
-    //
-    // pub fn get_concurrent(&self) -> u32 {
-    //     self.concurrent.unwrap_or(0)
-    // }
-}
-
 #[derive(Clone, Debug, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
 pub struct CertConfigItem {
@@ -191,23 +158,3 @@ impl CertConfigItem {
         }
     }
 }
-
-pub fn load_acme_config(file: Option<&str>, load_default: bool) -> XResult<Option<AcmeConfig>> {
-    if let Some(file) = file {
-        let s = opt_result!(util_file::read_file_content(file), "Read file: {}, failed: {}", file);
-        return Ok(Some(opt_result!(deser_hjson::from_str(&s), "Parse acme config file: {}, failed: {}", file)));
-    }
-
-    if load_default {
-        let default_config = util_file::read_config(None, &[
-            "~/acme_config.json".to_string(),
-            "/etc/acme_config.json".to_string(),
-        ]);
-        if let Some(default_config) = default_config {
-            let s = opt_result!(fs::read_to_string(default_config.clone()), "Read file: {:?}, failed: {}", default_config);
-            return Ok(Some(opt_result!(deser_hjson::from_str(&s), "Parse acme config file: {:?}, failed: {}", default_config)));
-        }
-    }
-
-    Ok(None)
-}
diff --git a/src/main.rs b/src/main.rs
index 114704d..00f9ee3 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -23,7 +23,7 @@ use async_std::channel;
 use async_std::channel::Sender;
 use config::AcmeAlgo;
 use config::AcmeMode;
-use crate::config::{CertConfig, CERT_NAME, KEY_NAME, load_acme_config};
+use crate::config::{CertConfig, CERT_NAME, KEY_NAME};
 
 const NAME: &str = env!("CARGO_PKG_NAME");
 const VERSION: &str = env!("CARGO_PKG_VERSION");
@@ -65,8 +65,7 @@ async fn main() -> tide::Result<()> {
         .arg(Arg::with_name("timeout").long("timeout").takes_value(true).default_value("5000").help("Timeout (ms)"))
         .arg(Arg::with_name("mode").short("m").long("mode").takes_value(true).default_value("prod").help("Mode"))
         .arg(Arg::with_name("dir").long("dir").takes_value(true).default_value("acme_dir").help("Account key dir"))
-        .arg(Arg::with_name("config").short("c").long("config").takes_value(true).help("Acme config"))
-        .arg(Arg::with_name("cert-config").long("cert-config").takes_value(true).help("Cert config"))
+        .arg(Arg::with_name("config").short("c").long("config").takes_value(true).help("Cert config"))
         .get_matches();
 
     if matches.is_present("version") {
@@ -125,26 +124,18 @@ async fn main() -> tide::Result<()> {
     };
     let account_dir = matches.value_of("dir").unwrap_or("acme_dir");
 
-    let domains_val = matches.values_of("domain").unwrap_or_else(|| {
-        failure!("Domains is not assigned.");
-        exit(1);
-    });
-
     let (s, r) = channel::bounded(1);
     startup_http_server(s, port);
     r.recv().await.ok();
     task::sleep(Duration::from_millis(500)).await;
 
-    // TODO ......
-    let config = matches.value_of("config");
-    let _acme_config = load_acme_config(config, true).unwrap_or_else(|e| {
-        failure!("Load acme config failed: {}", e);
-        exit(1);
-    });
-
-    let cert_config = matches.value_of("cert-config");
+    let cert_config = matches.value_of("config");
     match cert_config {
         None => { // cert config is not assigned
+            let domains_val = matches.values_of("domain").unwrap_or_else(|| {
+                failure!("Domains is not assigned.");
+                exit(1);
+            });
             let domains: Vec<&str> = domains_val.collect::<Vec<_>>();
             let primary_name = domains[0];
             let alt_names: Vec<&str> = domains.into_iter().skip(1).collect();