diff --git a/Cargo.lock b/Cargo.lock
index 081887a..f6343ff 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,7 +4,7 @@ version = 3
 
 [[package]]
 name = "acme-client"
-version = "1.1.1"
+version = "1.2.0"
 dependencies = [
  "acme-lib",
  "aliyun-openapi-core-rust-sdk",
diff --git a/Cargo.toml b/Cargo.toml
index d568699..3923059 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "acme-client"
-version = "1.1.1"
+version = "1.2.0"
 authors = ["Hatter Jiang <jht5945@gmail.com>"]
 edition = "2018"
 description = "Acme auto challenge client, acme-client can issue certificates from Let's encrypt"
diff --git a/src/acme.rs b/src/acme.rs
index c60656e..cbacbd4 100644
--- a/src/acme.rs
+++ b/src/acme.rs
@@ -141,6 +141,7 @@ pub fn request_acme_certificate(acme_request: AcmeRequest, dns_cleaned_domains:
                             let mut line = String::new();
                             information!("You need to config dns manually, press enter to continue...");
                             let _ = std::io::stdin().read_line(&mut line).unwrap();
+                            information!("Continued")
                         } else {
                             return simple_error!("Interact is not allowed, --allow-interact to allow interact");
                         }
diff --git a/src/main.rs b/src/main.rs
index bd4578a..63c471a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -44,7 +44,6 @@ async fn main() -> tide::Result<()> {
         .author(AUTHORS)
         .arg(Arg::with_name("version").short("V").long("version").help("Print version"))
         .arg(Arg::with_name("verbose").short("v").long("verbose").help("Verbose"))
-        .arg(Arg::with_name("type").short("t").long("type").default_value("http").takes_value(true).help("Type http or dns"))
         .arg(Arg::with_name("port").short("p").long("port").default_value("80").takes_value(true).help("Http port"))
         .arg(Arg::with_name("domain").short("d").long("domain").multiple(true).takes_value(true).help("Domains"))
         .arg(Arg::with_name("email").long("email").takes_value(true).help("Contract email"))
@@ -59,9 +58,10 @@ async fn main() -> tide::Result<()> {
         .arg(Arg::with_name("hide-logo").long("hide-logo").help("Hide logo"))
         .arg(Arg::with_name("skip-verify-ip").short("k").long("skip-verify-ip").help("Skip verify public ip"))
         .arg(Arg::with_name("skip-verify-certificate").short("K").long("skip-verify-certificate").help("Skip verify certificate"))
+        .arg(Arg::with_name("skip-listen").long("skip-listen").help("Skip http challenge listen"))
         .arg(Arg::with_name("allow-interact").long("allow-interact").help("Allow interact"))
-        .arg(Arg::with_name("challenge-type").short("T").long("challenge-type").takes_value(true).default_value("http").help("Challenge type, http or dns"))
-        .arg(Arg::with_name("dns-supplier").short("s").long("dns-supplier").takes_value(true).default_value("account://***:****@**?id=*").help("DNS supplier"))
+        .arg(Arg::with_name("challenge-type").short("t").long("challenge-type").takes_value(true).default_value("http").help("Challenge type, http or dns"))
+        .arg(Arg::with_name("dns-supplier").short("s").long("dns-supplier").takes_value(true).help("DNS supplier, e.g. account://***:****@**?id=*"))
         .get_matches();
 
     if matches.is_present("verbose") {
@@ -127,13 +127,6 @@ async fn main() -> tide::Result<()> {
         email.to_string()
     };
 
-    match matches.value_of("type") {
-        Some("http") => {}
-        _ => {
-            failure!("Type is not assigned or must be http.");
-            exit(1);
-        }
-    }
     let port: u16 = match matches.value_of("port") {
         Some(p) => p.parse().unwrap_or_else(|e| {
             failure!("Parse port: {}, failed: {}", p, e);
@@ -181,11 +174,13 @@ async fn main() -> tide::Result<()> {
             failure!("Load cert config: {}, failed: {}", f, e);
             exit(1);
         }));
-    let port = cert_config.as_ref().map(|c| c.port).flatten().unwrap_or(port);
 
-    let check = matches.is_present("check");
+    let skip_listen = matches.is_present("skip-listen");
+    let port = iff!(skip_listen, 0, cert_config.as_ref().map(|c| c.port).flatten().unwrap_or(port));
 
-    if !check {
+    let check_config = matches.is_present("check");
+
+    if !check_config && port > 0 {
         let (s, r) = channel::bounded(1);
         startup_http_server(s, port);
         r.recv().await.ok();
@@ -195,7 +190,7 @@ async fn main() -> tide::Result<()> {
     let mut dns_cleaned_domains: Vec<String> = vec![];
     match cert_config {
         None => { // cert config is not assigned
-            if check {
+            if check_config {
                 failure!("Bad argument `--check`");
                 exit(1);
             }
@@ -221,7 +216,7 @@ async fn main() -> tide::Result<()> {
             let acme_request = AcmeRequest {
                 challenge: AcmeChallenge::from_str(matches.value_of("challenge-type")),
                 credential_supplier: matches.value_of("dns-supplier"),
-                allow_interact: false,
+                allow_interact: matches.is_present("allow-interact"),
                 contract_email: &email,
                 primary_name,
                 alt_names: &alt_names,
@@ -241,7 +236,7 @@ async fn main() -> tide::Result<()> {
             }
         }
         Some(cert_config) => { // cert config is assigned
-            if check {
+            if check_config {
                 check_cert_config(&cert_config);
                 return Ok(());
             }