.. -*- coding: utf-8; -*-.. include:: HEADER.rst========== Network.==========.. contents::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 to IP address.==================:: $ nslookup example.comIP to DNS address.==================:: $ nslookup 192.168.1.1NetBIOS to IP address.======================By nbtstat.exe command from MS you can print NetBIOS name cache withname-to-IP address mappings:: $ nbtstat -c $ nbtstat -a NETBIOSNAMEIP to NetBIOS address.======================:: $ nbtstat -A xxx.xxx.xxx.xxxList of NetBIOS name.=====================:: $ nbtstat -rList 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.-------------------------------``-t`` tcp, ``-u`` udp, ``-l`` local, ``-p`` process:: $ sudo netstat -tulpor to use port number instead of protocol name:: $ sudo netstat -tulpnWhich 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 pathLinux.------:: $ sudo netstat -tulpnor:: $ sudo lsof -iHow disable IPv6?=================Debian kernel 2.6/Ubuntu ("official" method)/Fedora Core.---------------------------------------------------------Comment in /etc/modprobe.d/aliases "alias net-pf-10 ipv6" and add alias"net-pf-10 off", "alias ipv6 off":: $ sudo emacs /etc/modprobe.d/aliases ... $ cat /etc/modprobe.d/aliases ... # alias net-pf-10 ipv6 alias net-pf-10 off alias ipv6 off ...Reboot or:: $ sudo update-modulesAnother way is adding to /etc/modprobe.d/blacklist.local lines:: blacklist ipv6You can safely wipe out any IPv6 reference in ``/etc/hosts`` and``/etc/network/interfaces``. http://wiki.debian.org/DebianIPv6 DebianIPv6RHEL4/Centos4.--------------As for Debian, but ``/etc/modprobe.d/aliases`` has name ``/etc/modprobe.conf``.KDE.----:: $ cat /etc/environment ... KDE_NO_IPV6=true ...Firefox.--------See ``about:config`` page, set ``network.dns.disableIPv6`` to ``true``.Clear saved Windows networking passwords.=========================================:: cmd> rundll32.exe keymgr.dll, KRShowKeyMgr cmd> control userpasswords2 # another wayProxy auto-config.================== http://en.wikipedia.org/wiki/Proxy_auto-config