18.04: "untrusted launcher" -- how to make it *permanently* trusted

Robert Heller heller at deepsoft.com
Sun Apr 28 18:25:50 UTC 2019

At Sun, 28 Apr 2019 12:32:56 -0400 "Ubuntu user technical support,  not for general discussions" <ubuntu-users at lists.ubuntu.com> wrote:

> Hey there,
> Robert Heller wrote:
> >At Sat, 27 Apr 2019 08:27:40 -0400 (EDT) Robert Heller
> ><heller at deepsoft.com> wrote:
> >> 
> >> I recently upgraded a batch of diskless workstations to Ubuntu
> >> 14.04 using DRBL.  Everything is working well, except for one
> >> small problem:  We have some launcher files (.desktop) files in
> >> the login account Desktop folder, but even though they are chmod
> >> +x (and some are in fact direct copies
> >> from /usr/share/applications) they come up as "untrusted".  (And
> >> yes, they are properly owned by the user and group, etc.).  They
> >> work, once you click "Trust and execute", but they become
> >> untrusted again on reboot.  
> >
> >OK, some additional web searching shows that this is a "security
> >feature" of Gnome3.  Argh!  This is a serious pain for someone
> >managing a batch of desktops (I guess it make some sense for
> >relatively brainless people running Linux on their home machines).
> >But it makes things difficult for a system admin like me.  I am also
> >wondering if the fact that the /home file system is NFS mounted is
> >causing problems.
> >
> >Has *ANYONE* else had this issue?
> Is this (admittedly old) page of any use?
> https://askubuntu.com/questions/10395/untrusted-application-launcher

Already visited and no it is no help...

> Maybe this one will be of more use:
> https://askubuntu.com/questions/1056591/how-to-mark-desktop-file-as-trusted-in-18-04

Nor this one (from an *admin* POV)...

> This seems to be the actual explanation for the issue and it's pretty
> horrifying despite the disclaimers that it's all in our best interest:
> https://www.omgubuntu.co.uk/2018/05/nautilus-remove-ability-launch-binaries-apps
> Now I'm even more glad I use Ubuntu MATE (with the Caja file manager)
> and am planning on switching to Kubuntu (with the Dolphin file
> manager) shortly. I've never been a fan of vanilla Ubuntu and have
> always used one or another of its "flavors" instead.

Robert Heller             -- 978-544-6933
Deepwoods Software        -- Custom Software Services
http://www.deepsoft.com/  -- Linux Administration Services
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