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.. -*- coding: utf-8; -*-
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==========
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Network.
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==========
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1124
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.. contents::
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1121
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Ukraine internet provider.
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==========================
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Utel.
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-----
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User - none, password - none, phone - ``*99***1#`` or ``*99#``.
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Peoplenet.
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----------
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User and password you get by sending SMS message to ``920`` number. Phone ``#777``.
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DNS to IP address.
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==================
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::
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$ nslookup example.com
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IP to DNS address.
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==================
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::
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$ nslookup 192.168.1.1
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NetBIOS to IP address.
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======================
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By nbtstat.exe command from MS you can print NetBIOS name cache with
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name-to-IP address mappings::
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$ nbtstat -c
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List of NetBIOS name.
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=====================
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::
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$ nbtstat -r
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List of open ports.
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===================
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List of open ports under Windows.
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---------------------------------
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::
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cmd> netstat # with DNS name resolution, TCP only
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cmd> netstat -n # without name resolution, TCP only
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cmd> netstat -a -n # TCP and UDP
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cmd> netstat -s # show IP, ICMP, TCP, and UDP statistics.
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List of open ports under Linux.
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-------------------------------
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-t tcp, -u udp, -l local, -p process::
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$ sudo netstat -tulp
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or to use port number instead of protocol name::
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$ sudo netstat -tulpn
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Which processes open port?
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==========================
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Windows
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-------
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::
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cmd> netstat -o # show PID
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cmd> netstat -b # show also cmd name
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cmd> netstat -b -v # show all modules (.exe and .dll) with full path
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Linux.
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------
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::
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$ sudo netstat -tulpn
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or::
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$ sudo lsof -i
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How disable IPv6?
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=================
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Debian kernel 2.6/Ubuntu ("official" method)/Fedora Core.
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---------------------------------------------------------
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Comment in /etc/modprobe.d/aliases "alias net-pf-10 ipv6" and add alias
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"net-pf-10 off", "alias ipv6 off"::
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$ sudo emacs /etc/modprobe.d/aliases
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...
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$ cat /etc/modprobe.d/aliases
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...
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# alias net-pf-10 ipv6
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alias net-pf-10 off
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alias ipv6 off
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...
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Reboot or::
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$ sudo update-modules
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Another way is adding to /etc/modprobe.d/blacklist.local lines::
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blacklist ipv6
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You can safely wipe out any IPv6 reference in ``/etc/hosts`` and
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``/etc/network/interfaces``.
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RHEL4/Centos4.
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--------------
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As for Debian, but ``/etc/modprobe.d/aliases`` has name ``/etc/modprobe.conf``.
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KDE.
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----
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::
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$ cat /etc/environment
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...
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KDE_NO_IPV6=true
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...
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Firefox.
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--------
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See ``about:config`` page, set ``network.dns.disableIPv6`` to ``true``.
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Clear saved Windows networking passwords.
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=========================================
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::
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cmd> rundll32.exe keymgr.dll, KRShowKeyMgr
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cmd> control userpasswords2 # another way
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Proxy auto-config.
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==================
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http://en.wikipedia.org/wiki/Proxy_auto-config
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