diff --git a/conf/Cargo.toml b/conf/Cargo.toml
index d856fbb..b0b9fd0 100644
--- a/conf/Cargo.toml
+++ b/conf/Cargo.toml
@@ -11,7 +11,10 @@ edition = "2018"
 path = "src/lib.rs"
 
 [dependencies]
+duniter-core = { git = "https://git.duniter.org/nodes/rust/duniter-core" }
+read_input = "0.8"
 serde = { version = "1.0.105", features = ["derive"] }
+structopt = "0.3"
 
 [dev-dependencies]
 
diff --git a/conf/src/lib.rs b/conf/src/lib.rs
index 77d65d5..5773014 100644
--- a/conf/src/lib.rs
+++ b/conf/src/lib.rs
@@ -13,11 +13,14 @@
 // You should have received a copy of the GNU Affero General Public License
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
+use duniter_core::module_cli::anyhow;
+use read_input::prelude::*;
 use serde::{Deserialize, Serialize};
 use std::{
+    collections::HashSet,
     net::{IpAddr, Ipv4Addr, Ipv6Addr},
-    vec,
 };
+use structopt::StructOpt;
 
 #[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct GvaConf {
@@ -96,3 +99,157 @@ impl GvaConf {
             .unwrap_or_else(|| self.subscriptions_path.clone())
     }
 }
+
+#[derive(StructOpt)]
+pub struct GvaCli {}
+
+#[derive(StructOpt)]
+pub struct GvaCliConfigure {}
+
+impl duniter_core::module_cli::DuniterModuleCli for GvaCli {
+    const MODULE_NAME: &'static str = "gva";
+
+    type Conf = GvaConf;
+
+    type ConfigureOpt = GvaCliConfigure;
+
+    type Opt = Self;
+
+    fn configure(mut conf: Self::Conf, _: Self::ConfigureOpt) -> Self::Conf {
+        // Enable GVA API?
+        let res = input().msg("Enable GVA API? [Y/n]").default('Y').get();
+        conf.enabled = res != 'n';
+
+        if conf.enabled {
+            // ip4
+            conf.ip4 = input()
+                .msg(format!("Listen to ip v4 ? [{}]", conf.ip4))
+                .default(conf.ip4)
+                .get();
+            // ip6
+            let res = input().msg("Listen to ip v6? [Y/n]").default('Y').get();
+            if res != 'n' {
+                let proposed_ip6 = conf.ip6.unwrap_or(Ipv6Addr::UNSPECIFIED);
+                conf.ip6 = Some(
+                    input()
+                        .msg(format!("Enter ip v6: [{}]", proposed_ip6))
+                        .default(proposed_ip6)
+                        .get(),
+                );
+            } else {
+                conf.ip6 = None;
+            }
+            // port
+            conf.port = input()
+                .msg(format!("Listen to port ? [{}]", conf.port))
+                .default(conf.port)
+                .get();
+            // path
+            conf.path = input()
+                .msg(format!("Path ? [{}]", conf.path))
+                .default(conf.path)
+                .get();
+            // subscriptionsPath
+            conf.subscriptions_path = input()
+                .msg(format!(
+                    "Subscriptions path ? [{}]",
+                    conf.subscriptions_path
+                ))
+                .default(conf.subscriptions_path)
+                .get();
+            // remoteHost
+            if let Some(ref remote_host) = conf.remote_host {
+                let new_remote_host = input()
+                    .msg(format!("Remote host ? [{}]", remote_host))
+                    .default(remote_host.to_owned())
+                    .get();
+                if !new_remote_host.is_empty() {
+                    conf.remote_host = Some(new_remote_host);
+                }
+            } else {
+                let new_remote_host: String = input().msg("Remote host ? ").get();
+                if !new_remote_host.is_empty() {
+                    conf.remote_host = Some(new_remote_host);
+                }
+            }
+            // remotePort
+            let res = input()
+                .msg("Define a remote port? [y/N]")
+                .default('N')
+                .get();
+            if res == 'y' || res == 'Y' {
+                let default = conf.remote_port.unwrap_or(443);
+                conf.remote_port = Some(
+                    input()
+                        .msg(format!("Remote port ? [{}]", default))
+                        .default(default)
+                        .get(),
+                );
+            } else {
+                conf.remote_port = None;
+            }
+            // remotePath
+            let res = input()
+                .msg("Define a remote path? [y/N]")
+                .default('N')
+                .get();
+            if res == 'y' || res == 'Y' {
+                conf.remote_path = Some(input().msg("Enter remote path:").get());
+            } else {
+                conf.remote_path = None;
+            }
+            // remoteSubscriptionsPath
+            let res = input()
+                .msg("Define a remote subscriptions path? [y/N]")
+                .default('N')
+                .get();
+            if res == 'y' || res == 'Y' {
+                conf.remote_subscriptions_path =
+                    Some(input().msg("Enter remote subscriptions path:").get());
+            } else {
+                conf.remote_subscriptions_path = None;
+            }
+            // whitelist
+            let mut whitelist: HashSet<_> = conf.whitelist.iter().copied().collect();
+            let res = input().msg("Update whitelist? [y/N]").default('N').get();
+            if res == 'y' || res == 'Y' {
+                loop {
+                    println!("1. See whitelist content.");
+                    println!("2. Add an IP to the whitelist.");
+                    println!("3. Removing an IP from the whitelist.");
+                    println!("4. Quit.");
+                    match input().msg("Choose an action: ").default(1).get() {
+                        2usize => {
+                            whitelist.insert(input().msg("Enter a new IP address: ").get());
+                        }
+                        3 => {
+                            whitelist.remove(
+                                &input().msg("Indicate the IP address to be deleted: ").get(),
+                            );
+                        }
+                        4 => break,
+                        _ => {
+                            println!("--------------------------------");
+                            println!("Whitelist content ({} IPs):", whitelist.len());
+                            whitelist.iter().for_each(|ip| println!("{}", ip));
+                            println!("--------------------------------");
+                        }
+                    }
+                }
+            }
+            conf.whitelist = whitelist.iter().copied().collect();
+        }
+
+        println!("Configuration successfully updated.");
+
+        conf
+    }
+
+    fn command(
+        _conf: Self::Conf,
+        _opt: Self::Opt,
+        _data_path: std::path::PathBuf,
+    ) -> anyhow::Result<()> {
+        unimplemented!()
+    }
+}