.. -*- coding: utf-8; -*-

==========
 Network.
==========
.. contents::
   :local:

Network managers.
=================

Mainstream in Debian:

  ``connman``
    Intel Connection Manager daemon.
  ``network-manager``
    Network management framework (daemon and userspace tools).
  ``wicd``
    Wired and wireless network manager.

Misc:

  ``netctl``
    Come under ``systemd`` umbrella, absent in Debian.
  WiFi Radar
    Python scripts that lanches another applications.

MAC address vendor list
=======================

http://www.gcstech.net/macvendor/index.php
  Search to MAC address vendor list.

Ukraine internet provider.
==========================

Utel.
-----

User - none, password - none, phone - ``*99***1#`` or ``*99#``.

Peoplenet.
----------

User and password you get by sending SMS message to ``920`` number. Phone ``#777``.

DNS name resolution
===================

DNS to IP address::

  $ nslookup example.com

IP to DNS address::

  $ nslookup 192.168.1.1

NetBIOS name resolution
=======================

``nbtstat.exe`` command comes with Windows and allows NetBIOS name resolution
from cache.

NetBIOS to IP address::

  $ nbtstat -c
  $ nbtstat -a NETBIOSNAME

IP to NetBIOS address::

  $ nbtstat -A xxx.xxx.xxx.xxx

List of NetBIOS name::

  $ nbtstat -r

List of open ports
==================

List of open ports under Windows::

  cmd> netstat        # with DNS name resolution, TCP only
  cmd> netstat -n     # without name resolution, TCP only
  cmd> netstat -a -n  # TCP and UDP
  cmd> netstat -s     # show IP, ICMP, TCP, and UDP statistics.

List of open ports under Linux::

  $ sudo netstat -tulp

where ``-t`` tcp, ``-u`` udp, ``-l`` local, ``-p`` process.

or to use port number instead of protocol name::

  $ sudo netstat -tulpn

Windows predefined ports:

https://support.microsoft.com/en-us/help/832017/service-overview-and-network-port-requirements-for-windows
  Service overview and network port requirements for Windows
https://msdn.microsoft.com/en-us/library/cc875824.aspx
  Network Ports Used by Key Microsoft Server Products
https://msdn.microsoft.com/en-us/library/cc959833.aspx
  Port Assignments for Commonly-Used Services

Which processes open port
=========================

Windows::

  cmd> netstat -o     # show PID
  cmd> netstat -b     # show also cmd name
  cmd> netstat -b -v  # show all modules (.exe and .dll) with full path

Linux::

  $ sudo netstat -tulpn
  $ sudo lsof -i

Network connection troubleshooting
==================================

On Linux::

  $ ping 8.8.8.8
  $ traceroute 8.8.8.8
  $ mtr 8.8.8.8

On Windows::

  cmd> ping /t 8.8.8.8
  cmd> traceroute 8.8.8.8
  cmd> pathping 8.8.8.8

Proxy auto-config.
==================

  http://en.wikipedia.org/wiki/Proxy_auto-config