diff --git a/bin/netsoul-ruby b/bin/netsoul-ruby
index 8666aa4..fd2794d 100755
--- a/bin/netsoul-ruby
+++ b/bin/netsoul-ruby
@@ -51,10 +51,13 @@ module Netsoul
       @sock = TCPSocket.new(@config.server_host, @config.server_port)
       fail Netsoul::SocketError, 'Could not open a socket. Connection is unavailable.'.freeze unless @sock
       _cmd, _socket_num, md5_hash, client_ip, client_port, _server_timestamp = sock_get.split
+
       @config.build_user_connection_info md5_hash: md5_hash, client_ip: client_ip, client_port: client_port
+
       auth_ag
       auth_method
       auth_status
+
       @started = true
     end
 
@@ -75,8 +78,8 @@ module Netsoul
       sock, = IO.select([@sock], nil, nil, SOCKET_READ_TIMEOUT)
       fail Netsoul::SocketError, 'Timeout or fail on read socket' if sock.nil? || sock.empty?
       res = sock.first.gets
-      log :info, "[get ] #{res.chomp}"
-      res
+      log :info, "[get ] #{res.chomp}" if res
+      res || ''
     end
 
     def sock_close
@@ -99,12 +102,7 @@ OptionParser.new do |opts|
   opts.separator 'Netsoul-Ruby options:'.freeze
 
   opts.on('-c'.freeze, '--config FILE'.freeze, 'Configuration file in YAML'.freeze) do |file|
-    options[:config] = file
-    unless File.file?(options[:config])
-      puts '[ERROR] Configuration is not a valid file'
-      exit
-    end
-    options[:user_opts] = YAML.load_file(options[:config])
+    options[:user_opts] = YAML.load_file(file) if File.file?(file)
   end
 
   opts.on('-h', '--help', 'Display this screen') do
@@ -113,8 +111,9 @@ OptionParser.new do |opts|
   end
 end.parse!
 
-unless options.include?(:config)
-  puts '[ERROR] Configuration file is not provided'
+unless ENV.to_a.count { |k, _v| %w(NETSOUL_LOGIN NETSOUL_SOCKS_PASSWORD).include?(k) } == 2 ||
+       ENV.to_a.count { |k, _v| %w(NETSOUL_LOGIN NETSOUL_UNIX_PASSWORD NETSOUL_AUTH_METHOD).include?(k) } == 3
+  puts '[ERROR] You have to specify a configuration file or environment variables'
   exit
 end
 
diff --git a/lib/netsoul/config.rb b/lib/netsoul/config.rb
index 7a41b60..9776fea 100644
--- a/lib/netsoul/config.rb
+++ b/lib/netsoul/config.rb
@@ -17,20 +17,33 @@ class Config
 
     attr_reader :client_name
 
-    # rubocop:disable Metrics/AbcSize
+    # Supported environment variables:
+    #
+    # +NETSOUL_SERVER_HOST+: Netsoul server host, default 'ns-server.epita.fr'
+    # +NETSOUL_SERVER_PORT+: Netsoul server port, default 4242
+    # +NETSOUL_LOGIN+: IONIS account name
+    # +NETSOUL_SOCKS_PASSWORD+: IONIS socks password
+    # +NETSOUL_UNIX_PASSWORD+: IONIS unix password
+    # +NETSOUL_AUTH_METHOD+: Authentication method, default :std. Valid options are => @see +Config::AUTH_METHODS+
+    # +NETSOUL_STATE+: User status, default is :none. Valid options are => @see +Config::USER_STATES+
+    # +NETSOUL_LOCATION+: User location is free text of your position. If you ar in IONIS network an automatic mapping is proceed to detect your location
+    # +NETSOUL_USER_GROUP+: Free text specifying your promo or whatever else
+    # +NETSOUL_CLIENT_NAME+: Redefine the client name exposed to the Netsoul server
+    #
+    # rubocop:disable all
     def initialize(opts = {})
-      @server_host = opts.fetch(:server_host, 'ns-server.epita.fr'.freeze)
-      @server_port = Integer(opts.fetch(:server_port, 4242))
-      @login = opts.fetch(:login, 'ionis'.freeze)
-      @socks_password = opts.fetch(:socks_password, 'socks_password'.freeze)
-      @unix_password = opts.fetch(:unix_password, 'unix_password'.freeze)
-      @auth_method = AUTH_METHODS.include?(opts[:auth_method]) ? opts[:auth_method] : :std
-      @state = USER_STATES.include?(opts[:state]) ? opts[:state] : :none
-      @location = opts.fetch(:location, 'Home'.freeze)
-      @user_group = opts.fetch(:user_group, 'ETNA_2008'.freeze)
+      @server_host = ENV['NETSOUL_SERVER_HOST'] || opts.fetch(:server_host, 'ns-server.epita.fr'.freeze)
+      @server_port = Integer(ENV['NETSOUL_SERVER_PORT'] || opts.fetch(:server_port, 4242))
+      @login = ENV['NETSOUL_LOGIN'] || opts.fetch(:login, 'ionis'.freeze)
+      @socks_password = ENV['NETSOUL_SOCKS_PASSWORD'] || opts.fetch(:socks_password, 'socks_password'.freeze)
+      @unix_password = ENV['NETSOUL_UNIX_PASSWORD'] || opts.fetch(:unix_password, 'unix_password'.freeze)
+      @auth_method = (ENV['NETSOUL_AUTH_METHOD'] || (AUTH_METHODS.include?(opts[:auth_method]) ? opts[:auth_method] : :std)).to_sym
+      @state = (ENV['NETSOUL_STATE'] || (USER_STATES.include?(opts[:state]) ? opts[:state] : :none)).to_sym
+      @location = ENV['NETSOUL_LOCATION'] || opts.fetch(:location, 'Home'.freeze)
+      @user_group = ENV['NETSOUL_USER_GROUP'] || opts.fetch(:user_group, 'ETNA_2008'.freeze)
       @user_connection_info = {}
 
-      @client_name = opts.fetch(:client_name, '(Netsoul-Ruby) -> { Christian Kakesa, since 2009}'.freeze)
+      @client_name = ENV['NETSOUL_CLIENT_NAME'] || opts.fetch(:client_name, '(Netsoul-Ruby) -> { Christian Kakesa, since 2009}'.freeze)
     end
 
     def build_user_connection_info(opts = {})
diff --git a/lib/netsoul/version.rb b/lib/netsoul/version.rb
index 0c83001..6642a77 100644
--- a/lib/netsoul/version.rb
+++ b/lib/netsoul/version.rb
@@ -1,3 +1,3 @@
 module Netsoul
-  VERSION = '1.6.0'.freeze
+  VERSION = '1.7.0'.freeze
 end