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DOC: simplify bind option "interface" explanation

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The current documentation of the bind option "interface" can be misleading
(as seen on the ML recently).

This patch tries to address misunderstandings by :

 - avoiding the words listen or bind in the behavior description, using
 "restrict to interface" instead

 - using a different sentence construction (partially stolen from
 "man 7 socket": SO_BINDTODEVICE)

 - "defragmentation": moving behavior related explanations to the beginning
 and restrictions, use-cases and requirements to the end.
This commit is contained in:
Lukas Tribus 2013-02-12 22:13:19 +01:00 committed by Willy Tarreau
parent 5ba04f6cf9
commit fce2e96b9d
1 changed files with 7 additions and 8 deletions
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15
doc/configuration.txt
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@ -7126,14 +7126,13 @@ id <id>
option can only be used when defining only a single socket. option can only be used when defining only a single socket.
interface <interface> interface <interface>
Sets the name of the network interface to listen. This is currently only Restricts the socket to a specific interface. When specified, only packets
supported on Linux. The interface must be a primary system interface, not an received from that particular interface are processed by the socket. This is
aliased interface. When specified, all addresses on the same line will only currently only supported on Linux. The interface must be a primary system
be accepted if the incoming packets physically come through the designated interface, not an aliased interface. It is also possible to bind multiple
interface. It is also possible to bind multiple frontends to the same address frontends to the same address if they are bound to different interfaces. Note
if they are bound to different interfaces. Note that binding to a network that binding to a network interface requires root privileges. This parameter
interface requires root privileges. This parameter is only compatible with is only compatible with TCPv4/TCPv6 sockets.
TCPv4/TCPv6 sockets.
level <level> level <level>
This setting is used with the stats sockets only to restrict the nature of This setting is used with the stats sockets only to restrict the nature of