Sorry if my first post was not clear. It was the program wifiguard that "phoned home", not FoxitReader. Wifiguard is supposed to check wifi network for all connected devices. It did that, but also popped up a window about update and opened up a new tab in firefox that showed the homepage of the company.
xdg-utils are not on my system. I did tell firefox to make itself the default browser on first use (as it is my only browser).
IPC is (another) new term to this newbie, but a quick look at http://www.tldp.org/LDP/tlk/ipc/ipc.html
Not every process in the system can send signals to every other process, the kernel can and super users can. Normal processes can only send signals to processes with the same uid and gid or to processes in the same process group1.
Did try this:
As user tc, started a terminal and issued "wget ftp://distro.ibiblio.org/tinycorelinux/5.x/x86/Xsetup.sh
result: downloads the requested file
as user tc, opened terminal, ran script make_onlybox, issued "onlybox aterm". This gave me a new window terminal as user onlybox. In this window, issued "wget ftp://distro.ibiblio.org/tinycorelinux/5.x/x86/Xsetup.sh
result: wget: bad adress 'distro.ibiblio.org'
Am I missing something, or is the script blocking wget as it is supposed to do ?
The scripts block, based on the gid of users "onlybox" or "onlylan". Any child processes would run with the same gid and are therefore blocked as well. Is this not correct ? Edit:
Btw, the user onlybox created by the script is not an sudoer.
The user onlybox CAN use "su tc" to change the user. However, don't think that is programmed into apps. Could be prevented by setting password ? Will check.
Please be critical, please do comment. If I make stupid mistakes, it helps me learn.Edit2:
Few hours later. reading back I regret the "I do not know what the hell you are talking about but I will defend my (adopted) baby" tone. The script is not a fortress, but a simple picket fence.
Could you show me how the process of
simply piping data through basic net utilities like nc, wget et al.
Hope it is clear that there was no intention to discredit Foxitreader !! On the contrary, it is my favourite pdf-viewer.
And as for softperfect: they give away their software fo free so I should not complain. And telling me about an update is nice...in a way.