[tor-relays] Questions regarding arm on Debian

[r1610091651]

On Sat, 12 Nov 2016 at 12:41 Dennis Christ <lists at ollic.de> wrote:

> Yes that is what i tried to do. But it does not work in my case.
>
> $ arm
> [Errno 13] Permission denied: '/var/lib/tor/control_auth_cookie'
>
> Even if my user is in the group debian-tor the user has no right to
> access /var/lib/tor.
>
> $ ls -l /var/lib | grep tor
> drwx--S--- 4 debian-tor    debian-tor    4096 Nov 12 12:38 tor
>
>
> Am 12.11.2016 um 10:33 schrieb Louie Cardone-Noott:
> > On Fri, 11 Nov 2016, at 07:16 PM, diffusae wrote:
> >> Yes, you are right. But CookieAuthentication should work. You cannot
> >> query all of the connections without access to /var/lib/tor. You only
> >> will see circuits. I suggest to use "sudo -u debian-tor arm", if you
> >> like to use all of the arm pages. Otherwise you have to change the
> >> permissions. In my case, there is also the setgid flags on the
> >> directories (2700 drwx--S---).
> > Sorry not fully read the correspondence here but perhaps a tidier option
> > might be the one recommended on the tor website[1] of doing
> >
> > sudo adduser $USER debian-tor
> >
> > The alternative of running as the debian-tor user is a 'bad idea', see
> > [2] from last July
> >
> > [1] https://www.torproject.org/docs/tor-relay-debian.html.en#after
> > [2]
> > https://lists.torproject.org/pipermail/tor-relays/2016-July/009608.html
>

Hi

You could just modify the systemd service file for tor, with something like
ExecStartPre=/usr/bin/install -Z -m 02755 -o debian-tor -g debian-tor -d
/var/run/tor
ExecStartPre=/usr/bin/install -Z -m 02750 -o debian-tor -g debian-tor -d
/var/log/tor

Cheers
Seb
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