-*- outline -*-

* Ukraine internet provider.

** Utel.

User - none, password - none, phone - '*99***1#'.

* DNS to IP address.

  $ nslookup example.com

* IP to DNS address.

  $ nslookup 192.168.1.1

* NetBIOS to IP address.

By nbtstat.exe command from MS you can print NetBIOS name cache with

name-to-IP address mappings:

  $ nbtstat -c

* List of NetBIOS name.

  $ nbtstat -r

* List of open port.

** 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.

* How 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-modules

Another way is adding to /etc/modprobe.d/blacklist.local lines

  blacklist ipv6

You can safely wipe out any IPv6 reference in "/etc/hosts" and

"/etc/network/interfaces".

** RHEL4/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".

* Windows.

** Clear saved Windows networking passwords.

  cmd> rundll32.exe keymgr.dll, KRShowKeyMgr

  cmd> control userpasswords2                 # another way