Re: Another system management tool to disappear.
Le 31/08/2015 20:27, Reco a écrit :
> Hi.
>
> On Mon, 31 Aug 2015 18:25:09 +0100
> Lisi Reisz <lisi.reisz@gmail.com> wrote:
>
>> On Monday 31 August 2015 16:59:48 Nicolas George wrote:
>>> Le quartidi 14 fructidor, an CCXXIII, Lisi Reisz a écrit :
>>>> For those who have still not discovered, you have to press ^ three times
>>>> in succession inside a second.
>>>>
>>>> https://tlhp.cf/lennart-poettering-su/
>>> Are you referring to that snippet:
>>>
>>> # Connected to the local host. Press ^] three times within 1s to exit
>>> session.
>>>
>>> ... or are you referring to other parts of the page that I missed or parts
>>> in the video?
>>>
>>> If you are referring to that snippet, I suspect you are reading it wrong.
>>>
>>> For once, it is "^]", i.e. Ctrl-], i.e. ASCII 0x1D, aka "group separator".
>>>
>>> You can notice it is the same as the "escape character" present in most
>>> telnet implementations.
>>>
>>> And my second point is: it is obviously meant for emergency exit, like
>>> tilde-point in SSH. You should need it almost never in normal use, where
>>> you exit either by typing the command "exit" or by sending the EOF code
>>> (usually Ctrl-D), just like su.
>>>
>>> Actually, AFAIK neither sudo nor su support an emergency exit sequence. If
>>> that has not bothered you until now, it should not bother you from now on
>>> either.
>> Then I have misunderstood, which does not surprise me.
>>
>> What is the alternative to su that there is so much fuss about? And I don't
>> care about the session ending function it apparently has. <su> will change
>> me to root and <su $USER> will change me to the user. Is that what people
>> fear will disappear? And what do they fear will be put in its place? (Yes,
>> I understand that so far it is in addition, not instead of, but what is the
>> fuss about? What has Lennart proposed?)
> It's really simple.
>
> 1) Boot with init=/bin/sh kernel commandline.
>
> 2) Invoke su - <some_user>. Observe the result.
>
> 3) Invoke "machinectl shell". Observe the result.
>
> 4) Compare results from 2) and 3).
>
> Reco
>
>
This does nbot say anything aboiut su. Just that systemd was done
AGAINST unix and unix users. And thus does noit work well with unix command.
Reply to: