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author	Christopher Rogers <slaxemulator@gmail.com>
date	Sat Feb 26 12:17:18 2011 +0000 (2011-02-26)
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1 ====== Secrets of /etc/init.d/network.sh ======

3 ===== Introduction =====

5 SliTaz launches the /etc/init.d/network.sh at startup to initialize the network. It configures the hostname, loopback interface, and internet connection.

7 It's also possible to call the script when SliTaz is started, and use it to open or close internet connections. For example netbox and any software linking get-wifi-firmware (get-ipw2100-firmware, get-b43-firmware...) use it.

9 ===== Usage =====

11 By default, /etc/init.d/network.sh uses /etc/network.conf as the conf file. Parameters written in that file are made for the default network connection.

13 To start the default connection, as when booting:

15 <code>

16 # /etc/init.d/network.sh start

17 </code>

19 The start arg should be used only at boot. To stop the connection:

21 <code>

22 # /etc/init.d/network.sh stop

23 </code>

25 To stop and restart:

27 <code>

28 # /etc/init.d/network.sh restart

29 </code>

31 But, most interestingly, is that ///etc/init.d/network.sh// may also use another config file. It's useful if you're using a laptop, as you can configure multiple connections for multiple access points.

33 For example, we can create a directory /etc/network, containing some config files, named:

35 * Home, for home, using an ethernet connection and a static ip.

36 * Desktop, for the desktop, with a wep encryption, and a static ip.

37 * Univ, wifi without encryption, and with dhcp.

39 Now to get connected at Home, later at a Desktop and finally at Univ, before stopping connection, we only have to:

41 <code>

42 # /etc/init.d/network.sh restart /etc/network/Home

43 # /etc/init.d/network.sh restart /etc/network/Desktop

44 # /etc/init.d/network.sh restart /etc/network/Univ

45 # /etc/init.d/network.sh stop

46 </code>

48 ===== Sudo =====

50 Since /etc/init.d/network.sh/ can only be used by root, if you want a normal user to use it, you should install sudo:

52 <code>

53 # tazpkg get-install sudo

54 </code>

56 And then configure it:

58 <code>

59 # visudo

60 </code>

62 For user tux, which must use network.sh from every host; without a password you should add:

64 <file>

65 tux ALL=NOPASSWD: /etc/init.d/network.sh,

66 </file>

68 For user tortux, which may only get connected from localhost, and which should use a password each time, you should add:

70 <file>

71 tortux my_hostname=PASSWD: /etc/init.d/network.sh,

72 </file>

74 If you forgot your hostname, just run:

76 <code>

77 $ cat /etc/hostname

78 </code>

80 Here is some help to use visudo:

82 * i insertion mode (to write).

83 * Escape exit insertion mode.

84 * :wq record and quit.

85 * :q! quit without recording.

87 ===== Openbox =====

89 All this is not that really user friendly...

91 That's why I'll give you a perfect treat: A way to integrate all this in an openbox menu! Create a script /usr/lib/openbox/network-menu.sh, and add this to it:

93 <code bash>

94 #!/bin/sh

95 #

96 # openbox pipe menu to start network connections

97 # (This script is only useful if sudo is installed, and correctly configured)

99 echo ''

100

101 # for default file:

102 echo ''

103 echo ''

104 echo 'sudo /etc/init.d/network.sh restart'

105 echo ''