File: //usr/share/system-config-network/help/network-profiles.html
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><H1
><A
NAME="NETWORK-PROFILES"
></A
>Chapter 13. Working with Profiles</H1
><P
> Multiple logical network devices can be created for each physical
hardware device. For example, if you have one Ethernet card in your
system (eth0), you can create logical network devices with different
nicknames and different configuration options, all to be specifically
associated with eth0.
</P
><P
> Logical network devices are different from device aliases. Logical
network devices associated with the same physical device must exist in
different profiles and cannot be activated simultaneously. Device
aliases are also associated with the same physical hardware device, but
device aliases associated with the same physical hardware can be
activated at the same time. Refer to <A
HREF="network-aliases.html"
>Chapter 14</A
>
for details about creating device aliases.
</P
><P
> <I
CLASS="FIRSTTERM"
>Profiles</I
> can be used to create multiple
configuration sets for different networks. A configuration set can
include logical devices as well as hosts and DNS settings. After
configuring the profiles, you can use the
<B
CLASS="APPLICATION"
>Network Administration Tool</B
> to switch back and forth
between them.
</P
><P
> By default, there is one profile called <B
CLASS="GUILABEL"
>Common</B
>. To
create a new profile, select <B
CLASS="GUIMENU"
>Profile</B
> =>
<B
CLASS="GUIMENUITEM"
>New</B
> from the pull-down menu, and enter a
unique name for the profile.
</P
><P
> You are now modifying the new profile as indicated by the status bar at
the bottom of the main window.
</P
><P
> Click on an existing device already in the list, and click the
<B
CLASS="GUIBUTTON"
>Copy</B
> button to copy the existing device to a
logical network device. If you use the <B
CLASS="GUIBUTTON"
>New</B
>
button, a network alias will be created, which is incorrect. To change
the properties of the logical device, select it from the list and click
<B
CLASS="GUIBUTTON"
>Edit</B
>. For example, the nickname can be changed to
a more descriptive name, such as <TT
CLASS="USERINPUT"
><B
>eth0_office</B
></TT
>, so
that it can be recognized more easily.
</P
><P
> In the list of devices, there is a column of checkboxes labeled
<B
CLASS="GUILABEL"
>Profile</B
>. For each profile, you can check or uncheck
devices. Only the checked devices are included for the currently
selected profile. For example, if you create a logical device named
<TT
CLASS="USERINPUT"
><B
>eth0_office</B
></TT
> in a profile called
<TT
CLASS="USERINPUT"
><B
>Office</B
></TT
> and want to activate the logical device if
the profile is selected, uncheck the
<TT
CLASS="COMPUTEROUTPUT"
>eth0</TT
> device and check the
<TT
CLASS="COMPUTEROUTPUT"
>eth0_office</TT
> device.
</P
><P
> For example, <A
HREF="network-profiles.html#NEAT-OFFICE-PROFILE-FIG"
>Figure 13-1</A
> shows a profile
called <B
CLASS="GUILABEL"
>Office</B
> with the logical device
<B
CLASS="GUILABEL"
>eth0_office</B
>. It is configured to activate the first
Ethernet card using DHCP.
</P
><DIV
CLASS="FIGURE"
><A
NAME="NEAT-OFFICE-PROFILE-FIG"
></A
><DIV
CLASS="MEDIAOBJECT"
><P
><IMG
SRC="./figs/neat-office-profile.png"></P
></DIV
><P
><B
>Figure 13-1. Office Profile</B
></P
></DIV
><P
> Notice that the <B
CLASS="GUILABEL"
>Home</B
> profile as shown in <A
HREF="network-profiles.html#NEAT-HOME-PROFILE-FIG"
>Figure 13-2</A
> activates the
<B
CLASS="GUILABEL"
>eth0_home</B
> logical device, which is associated with
<TT
CLASS="COMPUTEROUTPUT"
>eth0</TT
>.
</P
><DIV
CLASS="FIGURE"
><A
NAME="NEAT-HOME-PROFILE-FIG"
></A
><DIV
CLASS="MEDIAOBJECT"
><P
><IMG
SRC="./figs/neat-home-profile.png"></P
></DIV
><P
><B
>Figure 13-2. Home Profile</B
></P
></DIV
><P
> You can also configure <TT
CLASS="COMPUTEROUTPUT"
>eth0</TT
> to activate
in the <B
CLASS="GUILABEL"
>Office</B
> profile only and to activate a ppp
(modem) device in the <B
CLASS="GUILABEL"
>Home</B
> profile only. Another
example is to have the <B
CLASS="GUILABEL"
>Common</B
> profile activate
<TT
CLASS="COMPUTEROUTPUT"
>eth0</TT
> and an <B
CLASS="GUILABEL"
>Away</B
>
profile activate a ppp device for use while traveling.
</P
><P
> A profile cannot be activated at boot time. Only the devices set to
activate at boot time in the <B
CLASS="GUILABEL"
>Common</B
> profile (the
default profile) are activated at boot time. After the system as booted,
go to <B
CLASS="GUIMENU"
>Main Menu</B
> (on the Panel) => <B
CLASS="GUIMENU"
>System
Tools</B
> => <B
CLASS="GUIMENUITEM"
>Network Device Control</B
> (or
type the command <TT
CLASS="COMMAND"
>system-control-network</TT
>) to select a
profile and activate it. The activate profile section only appears in
the <B
CLASS="APPLICATION"
>Network Device Control</B
> interface if more
than the default <B
CLASS="GUILABEL"
>Common</B
> interface exists.
</P
><P
> Alternatively, execute the following command to enable a profile (replace
<TT
CLASS="REPLACEABLE"
><I
><profilename></I
></TT
> with the name of the profile):
</P
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><TD
><PRE
CLASS="SCREEN"
><TT
CLASS="COMMAND"
>system-config-network-cmd --profile <TT
CLASS="REPLACEABLE"
><I
><profilename></I
></TT
> --activate</TT
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