[systemd-devel] Last question about systemd before my presentation

[Cecil Westerhof]

On 12/05/2013 10:08 AM, Mantas Mikulėnas wrote:
>  > One of the problems mentioned is that services can be started only
> when they are used for the first time. As I understood it, you can make
> sure that a service is always loaded, so that there is no waiting time
> the first time it is called.
>
> This is not a problem. This is a configuration choice. If the service
> supports activation, you *can* let it be activated if that suits you,
> but you can also configure it to be started on boot as any other service
> (i.e. make multi-user.target depend on the service directly).

OK, when I use:
[Install]
WantedBy=multi-user.target

What I did until now, the service is just started.

When I do not use it, only a socket is made and it is started the first 
time it is used.

Correct?


When a service is started because it was used (loaded on the first use), 
does it keeps running, or is it unloaded after some time? Or can this be 
configured?


>  > I understood you could deny a service network connection. How is this
> done? Until no I could not find it. Is it possible to limit the
> bandwidth a service is allowed to use?
>
> PrivateNetwork=yes will create a dedicated net namespace for that
> service, which does not have any network interfaces by default.
> (Relevant man pages: clone, unshare, setns, nsenter; LXC also uses this.)

OK, it is an on/off switch. There is not a possibility to limit the 
bandwidth?


Met vriendelijke groet,



Cecil Westerhof
Engineer
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