-*- outline -*-

* 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.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 ports.

** 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.

** Linux.

  $ netstat

* 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

* 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