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How to set up static DNS on your computer or handheld device

iOS (Apple Mobile)

  1. Enable WiFi on your device and connect to the WiFi network you want to use.
  2. Tap the blue arrow button on the right side of the network name to tweak its settings.
  3. Select the DNS field and enter 160.7.240.4, 160.7.240.20.
  4. Seperate different DNS addresses with commas.

Android

  1. Open the Settings on the device.
  2. Select "Wi-Fi".
  3. Long press your current network, then select "Modify network".
  4. Mark "Show advanced options" check box.
  5. Change "IP settings" to "Static".
  6. Add the DNS servers 160.7.240.4 to the "DNS 1", and 160.7.240.20 to the "DNS 2" fields.
  7. Press "Save" button, disconnect from the network, and reconnect for changes to take effect.

Microsoft Windows

DNS settings are specified in the TCP/IP Properties window for the selected network connection.

Example: Changing DNS server settings on Microsoft Windows 7

  1. Go the Control Panel.
  2. Click Network and Internet, then Network and Sharing Center, and click Change adapter settings.
  3. Select the connection for which you want to configure SFCN DNS. For example:
    • To change the settings for an Ethernet connection, right-click Local Area Connection, and click Properties.
    • To change the settings for a wireless connection, right-click Wireless Network Connection, and click Properties.
    If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
  4. Select the Networking tab. Under This connection uses the following items, select Internet Protocol Version 4 (TCP/IPv4) and then click Properties.
  5. Click Advanced and select the DNS tab. If there are any DNS server IP addresses listed there, write them down for future reference, and remove them from this window.
  6. Click OK.
  7. Select Use the following DNS server addresses. If there are any IP addresses listed in the Preferred DNS server or Alternate DNS server, write them down for future reference.
  8. Replace those addresses with the IP addresses of the SFCN DNS servers:
    • For IPv4: 160.7.240.4 and 160.7.240.20
  9. Restart the connection you selected in step 3.
  10. Test that your setup is working correctly.
  11. Repeat the procedure for additional network connections you want to change.

Mac OS X

DNS settings are specified in the Network window.

Example: Changing DNS server settings on Mac OS 10.5

  1. From the Apple menu, click System Preferences, then click Network.
  2. If the lock icon in the lower left-hand corner of the window is locked, click the icon to make changes, and when prompted to authenticate, enter your password.
  3. Select the connection for which you want to configure SFCN DNS. For example:
    • To change the settings for an Ethernet connection, select Built-In Ethernet, and click Advanced.
    • To change the settings for a wireless connection, select Airport, and click Advanced.
  4. Select the DNS tab.
  5. Click + to replace any listed addresses with, or add, the SFCN IP addresses at the top of the list:
    • For IPv4: 160.7.240.4 and 160.7.240.20
  6. Click Apply and OK.
  7. Test that your setup is working correctly.
  8. Repeat the procedure for additional network connections you want to change.

Linux

In most modern Linux distributions, DNS settings are configured through Network Manager.

Example: Changing DNS server settings on Ubuntu

  1. In the System menu, click Preferences, then click Network Connections.
  2. Select the connection for which you want to configure SFCN DNS. For example:
    • To change the settings for an Ethernet connection, select the Wired tab, then select your network interface in the list. It is usually called eth0.
    • To change the settings for a wireless connection, select the Wireless tab, then select the appropriate wireless network.
  3. Click Edit, and in the window that appears, select the IPv4 Settings or IPv6 Settings tab.
  4. If the selected method is Automatic (DHCP), open the dropdown and select Automatic (DHCP) addresses only instead. If the method is set to something else, do not change it.
  5. In the DNS servers field, enter the SFCN DNS IP addresses, separated by a space:
    • For IPv4: 160.7.240.4 and 160.7.240.20
  6. Click Apply to save the change. If you are prompted for a password or confirmation, type the password or provide confirmation.
  7. Test that your setup is working correctly.
  8. Repeat the procedure for additional network connections you want to change.

If your distribution doesn't use Network Manager, your DNS settings are specified in /etc/resolv.conf.