Il punto finale nei nomi di dominio

Per la serie "i grandi dilemmi dell'umanita'" puo' capitare di dimenticare le situazioni in cui il nome di dominio (stiamo parlando di DNS) deve essere seguito da un punto (.).

Un piccolo promemoria:

• Usate il punto finale nei nomi di dominio nei file:
  

  hosts
  hosts.rev
  named.ca
  named.local

  
  In questi file un nome valido di dominio potrebbe essere:
  

  marketing.dominio.com.

• Non usate il punto finale nei nomi di dominio nei file
  

  named.boot
  resolv.conf

  
  In questi file il nome corretto sarebbe:
  

  marketing.dominio.com

  
  

Come trovare MAC Address, indirizzo IP e nome del mio computer

Vedremo come farlo per sistemi:

• Windows XP/2000
• Mac
• Linux
• Windows Vista

Windows XP/2000

• From the Start button select Run
• In the box which appears type cmd and click OK
• A new windows will appear - at the prompt type ipconfig /all
• The MAC address will be referred to as the Physical Address and is made up of 12 characters e.g. 00-D1-AB-F2-G3-89
  You will have a separate MAC address for your wireless card and your Ethernet card. Make sure you use the correct one.
• The IP address will be listed - if you are connected to the UWA network it should begin with 144.124.
• The host name is your computer's name

Mac

• From the Apple in the upper left hand corner choose System Preferences
• Click on the Network icon
• From the Show menu Select Airport (for Wireless) or Built in Ethernet (for Wired)
  • For the Built in Ethernet (for Wired) the MAC address will be at the top of the Ethernet tab as the Ethernet ID.
    The MAC address is the 12 character address e.g. 00:14:67:F0:56:A4
  • For the Airport (for Wireless) the MAC address will be at the top of the AirPort tab as the AirPort ID (or on the TCP/IP tab, again as the AirPort ID ). The MAC address is the 12 character address e.g. 00:14:67:F0:56:A4
• The Current IP address (If there is one) will be under the TCP/IP tab for the AirPort and the Ethernet connections
• To find your Computer Name go back to System Preferences and click on Sharing , your computer's name should be in the computer name box at the top of this window.

Linux

• In a privileged terminal session type: ifconfig
• This will show you a list of the network adapters installed. The MAC address is referred to here as the HWaddr
• If you have a wireless card you will see more then one MAC Address, make sure you register the right MAC address.
• To pick out your wireless MAC address type: iwconfig - your Wired one will be the other one

Windows Vista

• Click the Start icon
• Click All Programs
• Click Accessories
• Click Command Prompt
• A new window will appear - at the prompt type ipconfig /all
• The MAC address will be referred to as the Physical Address and is made up of 12 characters e.g. 00-D1-AB-F2-G3-89
  You will have a separate MAC address for your wireless card and your Ethernet card. Make sure you use the correct one.
• The IP address will be listed - if you are connected to the UWA network it should begin with 144.124.
• The host name is your computer's name