[systemd-devel] Question about service dependency handling in systemd-228

[Bao Nguyen]

Hi,

Thanks all for your comments. I will try to use option FreeBind. However
could anyone explain for me that I did not use FreeBind option in
systems-210 but all my services start well? I am still inclined to the
different of systemd-228 and systemd-210 causes the current issue.

Thanks again,
Brs,
Bao



On Sun, Nov 26, 2017 at 4:53 PM, Reindl Harald <h.reindl at thelounge.net>
wrote:

>
>
> Am 26.11.2017 um 10:47 schrieb Bao Nguyen:
>
>> Regard to your question, "asi-My-5101.socket" depends on
>> "My-sshd.target", I think that in my case it is expected as my socket
>> listens on a specific address IP:port so it should start after a network
>> service to configure and assign IP address before my socket runs
>>
>
> nonsense - the whole point of socket activation is to have sockets
> listening before other stuff is up and running
>
> https://www.freedesktop.org/software/systemd/man/systemd.socket.html
> If an IP address is used here, it is often desirable to listen on it
> before the interface it is configured on is up and running, and even
> regardless of whether it will be up and running at any point. To deal with
> this, it is recommended to set the FreeBind= option described below
>
> FreeBind=
> Takes a boolean value. Controls whether the socket can be bound to
> non-local IP addresses. This is useful to configure sockets listening on
> specific IP addresses before those IP addresses are successfully configured
> on a network interface. This sets the IP_FREEBIND socket option. For
> robustness reasons it is recommended to use this option whenever you bind a
> socket to a specific IP address. Defaults to false.
>
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