[9fans] Killing another user's process

[9fans] Killing another user's process

[Peter Hull]

Is it possible to kill another user's process in plan9?
Specifically I've been messing about with tftpd, which sets itself up
as user 'none' - if I want to stop the tftp server, how do I do that?
Thanks,
Pete

Re: [9fans] Killing another user's process

[Skip Tavakkolian]

[-- Attachment #1: Type: text/plain, Size: 396 bytes --]

If you're the host owner, you can:

Kill tftpd | rc

(See rc scripts kill and Kill)

On Mon, Jul 24, 2017, 9:41 AM Peter Hull <peterhull90@gmail.com> wrote:

> Is it possible to kill another user's process in plan9?
> Specifically I've been messing about with tftpd, which sets itself up
> as user 'none' - if I want to stop the tftp server, how do I do that?
> Thanks,
> Pete
>
>

[-- Attachment #2: Type: text/html, Size: 699 bytes --]

Re: [9fans] Killing another user's process

[Peter Hull]

Thanks, Skip.
I thought that ought to work, however 'kill tftpd' doesn't give any
output. (I can kill other processes)
I think maybe I have misunderstood the host owner part. If I do a
plain install (of 9front, actually) from the CD and log in as glenda,
am I not the host owner?
Thanks,
Pete


On Mon, 24 Jul 2017 at 20:02 Skip Tavakkolian
<skip.tavakkolian@gmail.com> wrote:
>
> If you're the host owner, you can:
>
> Kill tftpd | rc
>
> (See rc scripts kill and Kill)
>
>
> On Mon, Jul 24, 2017, 9:41 AM Peter Hull <peterhull90@gmail.com> wrote:
>>
>> Is it possible to kill another user's process in plan9?
>> Specifically I've been messing about with tftpd, which sets itself up
>> as user 'none' - if I want to stop the tftp server, how do I do that?
>> Thanks,
>> Pete
>>

Re: [9fans] Killing another user's process

[Charles Forsyth]

[-- Attachment #1: Type: text/plain, Size: 1237 bytes --]

lower case kill restricts the list to processes of the invoking user
initial cap Kill doesn't do that.
for lower case kill, you can @{rfork n; echo -n none >/tmp/none && bind
/tmp/none /dev/user && kill tftpd}
you wouldn't normally of course but aspects of that command might be
instructive

On 25 July 2017 at 08:34, Peter Hull <peterhull90@gmail.com> wrote:

> Thanks, Skip.
> I thought that ought to work, however 'kill tftpd' doesn't give any
> output. (I can kill other processes)
> I think maybe I have misunderstood the host owner part. If I do a
> plain install (of 9front, actually) from the CD and log in as glenda,
> am I not the host owner?
> Thanks,
> Pete
>
>
> On Mon, 24 Jul 2017 at 20:02 Skip Tavakkolian
> <skip.tavakkolian@gmail.com> wrote:
> >
> > If you're the host owner, you can:
> >
> > Kill tftpd | rc
> >
> > (See rc scripts kill and Kill)
> >
> >
> > On Mon, Jul 24, 2017, 9:41 AM Peter Hull <peterhull90@gmail.com> wrote:
> >>
> >> Is it possible to kill another user's process in plan9?
> >> Specifically I've been messing about with tftpd, which sets itself up
> >> as user 'none' - if I want to stop the tftp server, how do I do that?
> >> Thanks,
> >> Pete
> >>
>
>

[-- Attachment #2: Type: text/html, Size: 1891 bytes --]

Re: [9fans] Killing another user's process

[Peter Hull]

On Tue, 25 Jul 2017 at 10:14 Charles Forsyth <charles.forsyth@gmail.com> wrote:
>
> lower case kill restricts the list to processes of the invoking user
> initial cap Kill doesn't do that.
Apologies both - didn't read Skip's answer properly. I saw kill where
I should have seen Kill.

> for lower case kill, you can @{rfork n; echo -n none >/tmp/none && bind /tmp/none /dev/user && kill tftpd}
> you wouldn't normally of course but aspects of that command might be instructive
Definitely.