diff --git a/server/src/dns.rs b/server/src/dns.rs
deleted file mode 100644
index 0bd2e7b..0000000
--- a/server/src/dns.rs
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) 2018 Brandl, Valentin <mail+rust@vbrandl.net>
-// Author: Brandl, Valentin <mail+rust@vbrandl.net>
-//
-// Licensed unter the Apache License, Version 2.0 or the MIT license, at your
-// option.
-//
-// ********************************************************************************
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy of
-// this software and associated documentation files (the "Software"), to deal in
-// the Software without restriction, including without limitation the rights to
-// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-// the Software, and to permit persons to whom the Software is furnished to do so,
-// subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-//
-// ********************************************************************************
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//   http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-use failure::Error;
-use openssl::rsa::Rsa;
-use std::{fs, str::FromStr};
-use trust_dns::{
-    client::{Client, ClientConnection, ClientStreamHandle, SyncClient},
-    rr::{
-        dnssec::{Algorithm, KeyPair, Signer}, rdata::KEY,
-    },
-    udp::UdpClientConnection,
-};
-use util::ExecuteError;
-
-fn create_client(server: &str, pem: &str) -> Result<SyncClient<UdpClientConnection>, Error> {
-    let addr = server.parse()?;
-    let conn = UdpClientConnection::new(addr).map_err(|_| ExecuteError::ClientConnection)?;
-
-    let pem = fs::read(pem)?;
-    let rsa = Rsa::private_key_from_pem(&pem)?;
-    let key = KeyPair::from_rsa(rsa).map_err(|_| ExecuteError::KeyPair)?;
-
-    let sig0key = KEY::new(
-        Default::default(),
-        Default::default(),
-        Default::default(),
-        Default::default(),
-        Algorithm::RSASHA256,
-        key.to_public_bytes().map_err(|_| ExecuteError::KeyPair)?,
-    );
-
-    let signer = Signer::sig0(
-        sig0key,
-        key,
-        FromStr::from_str("ddns-key").map_err(|_| ExecuteError::KeyPair)?,
-    );
-
-    Ok(SyncClient::with_signer(conn, signer))
-}