Re: lsof outputs nothing
On Sunday 17 May 2020 12:51:00 David Wright wrote:
> On Sun 17 May 2020 at 09:34:42 (-0400), Gene Heskett wrote:
> > On Sunday 17 May 2020 06:25:20 Reco wrote:
> > > On Sun, May 17, 2020 at 01:04:23PM +0300, aprekates wrote:
> > > > In Buster lsof wont report anything
> > > >
> > > > $ sudo lsof
> > > > lsof: WARNING: can't stat() fuse file system /run/user/1000/doc
> > > > Output information may be incomplete.
> > >
> > > Most likely this fuse filesystem was not mounted with
> > > "allow_other" option. Its contents is inaccessble to root, hence
> > > lsof behaviour is expected.
> > >
> > > Do you really need "*sudo* lsof"? Ordinary lsof will do its job
> > > just fine as long as it's your user's processes that you're
> > > interested in.
>
> So is this a case where some helpful software, like a DE, has unset
> that option for the user? I seem to get it set as the default:
>
> I set: ro,nofail,umask=022,uid=1000,gid=1000
> I see:
> ro,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksi
>ze=4096
>
> That's mounting ntfs filesystems from fstab with AIUI fuse (fuseblk
> filetype). Open files on these filesystems are seen in the lsof output
> by root and whoever has the files open, as I had kind of expected.
>
> > If running your own webserver, like I do, faceing the net, in a
> > permissions sandbox, then the answer is a resounding yes. I'm on a
> > cable dsl so I'm online all the time. And with a limited bandwidth,
> > its paramount that I keep the bots blocked else they use up all my
> > upload bandwidth. I don't mind them indexing the place, but way too
> > many think its their right to mirror everything they can find and
> > that can easily use up my available bandwidth. But in the last 6
> > months they've learned how to keep their identities better wrapped,
> > so my regular logs don't show them, nor identify the files they are
> > sucking. But I still see the bandwidth being used. Apache2's logging
> > sucks.
> >
> > So yes Reco, sudo lsof can be very helpfull.
>
> Presumably your circumstances are different from those of the OP.
> (I'm not sure of the relevance of your internet connection etc.)
>
> Cheers,
> David.
I was supplying full info in case it mattered, a justification for my
needs and attitude. Here, the diff has amounted to 300GB a month. Sure,
I could buy more bandwidth, but I'm 85, on SS and can't afford to.
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/gene>
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