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  1. [ubuntu] Re: Problem with monitor display suddenly "distorted"

    Thanks.

    I am not sure exactly what is helpful. Here is some stuff I found, not sure what any of it means:

    CPU is Intel Core i5-4460 CPU @ 3.20 GHz
    Motherboard is ASUS Tek H97I-PLUS Rev...
  2. [ubuntu] Problem with monitor display suddenly "distorted"

    Ubuntu 18.04.5, gnome shell 3.28.4, x11 x.org 1.19.6

    Suddenly, with no changes or reason that I am aware of, when I turn on the computer and then log in to my user account, one of the three...
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    [ubuntu] How to change sound output

    Ubuntu 18.04.4, and gnome shell.

    Until recently, for my Ubuntu desktop computer all audio played out of a sound output device called "Line-Out - Built-in Audio". I have never had any issues...
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    [ubuntu] Re: how to manage firewall

    Are you sure the command

    apt-mark showmanual

    shows only the list of manually installed programs?


    I ask because, when I run that command, I get about 500 applications listed, including...
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    [ubuntu] Re: how to manage firewall

    Ok, if I'm understanding all this correctly.....

    "For a desktop, I’ll start with:



    allow all outbound
    allow inbound from the LAN
    block inbound from the WAN
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    [ubuntu] Re: how to manage firewall

    "Be certain to backup any settings, data, and perhaps the list of manually installed programs."

    How does a person compile a list of manually installed programs?
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    [ubuntu] Re: how to manage firewall

    "Maybe the OP really just wanted to know which program would be easiest to use to control iptables for his needs?"

    No, that is not what I am asking.

    I am asking how, in some practical...
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    [ubuntu] Re: how to manage firewall

    "If you don't know what those programs are, then I suggest you reinstall a clean version of Ubuntu 20.04 and start afresh."

    Let's say I did that.

    Then, on my "clean" system, I need to...
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    [ubuntu] Re: how to manage firewall

    "If you didn't install them, who did?"

    I don't know. I guess I did.

    This system is seven years old. I cannot remember everything I've installed in the past seven years.
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    [ubuntu] Re: how to manage firewall

    "You still haven't told us whether this is a server or a desktop machine. Is it directly connected to the public Internet, or does it go through a router?"

    Sorry. It is a desktop computer. It...
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    [ubuntu] Re: how to manage firewall

    "A bunch of those service shouldn't be running on a non-developer system. You should remove those."

    Ok. How do I do that? I am assuming that those are services, as opposed to applications.
    ...
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    [ubuntu] Re: how to manage firewall

    Well, I don't know what any of these programs are, to be honest. So, I have no way to evaluate them. I do not know which applications I have installed that depend on these ports.

    I also don't...
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    [ubuntu] Re: how to manage firewall

    Thank you.

    Sorry for the delay, I was away for a couple days.

    I will admit, I am unable to follow 90% of what you wrote. I need far more education to understand what you are saying, and what...
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    [ubuntu] Re: how to manage firewall

    Thank you.

    Sorry for the delay, I was away for a couple days.

    I will admit, I am unable to follow 90% of what you wrote. I need far more education to understand what you are saying, and...
  15. [ubuntu] Re: who is the intended user for apparmor

    Thank you.

    In a way, I am glad to hear that you never bother much with apparmor either. I am not a nerdy power user, so I guess I won't pay attention to apparmor.

    I had looked into...
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    [ubuntu] Re: how to manage firewall

    Thanks for your help. I post the results here. But.... Now I'm confused, this list is FAR shorter than the list produced by the ss -lntup command......


    Starting Nmap 7.60 ( https://nmap.org...
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    [ubuntu] Re: how to manage firewall

    Thanks for the reply, I appreciate it.

    I ran the command you suggested.

    I think I'm going to have to throw in the towel, and just give up on firewall security in Linux.

    I had about...
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    [ubuntu] how to manage firewall

    I want to set up my firewall to start with by allowing all outgoing, but block all incoming.

    However, I *think* I have applications installed that require ports to be open for some incoming.
    ...
  19. [ubuntu] who is the intended user for apparmor

    Ubuntu 18.04.2.
    I am not a technically trained person, pretty much just a regular layman who uses Ubuntu.
    I've been reading about apparmor, and struggling to understand its benefit.
    I understand...
  20. [ubuntu] Nautilus menu went items missing: Reload, Show Hidden Files

    Ubuntu 18.04.3, Nautilus 3.26.4.

    Suddenly, for no reason I know of, in the "hamburger" menu in Nautilus, the "reload" option is gone, and the "Show Hidden Files" option is always greyed out.
    ...
  21. [SOLVED] Re: How to make VPN connect automatically after login (18.04)

    I found this the hard way, you need to enter this into a terminal: nm-connection-editor , and then double click on the appropriate connection for you in the resulting window, and in the general tab...
  22. [SOLVED] How to make VPN connect automatically after login (18.04)

    I have a working VPN on Ubuntu 18.04.2 and GNOME shell 3.28.3.

    I can't see how to make the VPN connect automatically after I login. How do I do that?

    I do not want the VPN available to all...
  23. [SOLVED] Re: Where are image files for GNOME Boxes stored?

    Yep, that worked!!!! Thanks!!

    It was located in /home/user/.var/app/org.gnome.Boxes/data/gnome-boxes/images .

    I assume it was put into this odd location because I installed gnome boxes via...
  24. [SOLVED] Where are image files for GNOME Boxes stored?

    Ubuntu 18.04
    Gnome Boxes 3.30.3

    I have installed Linux Mint as a guest virtual machine in Gnome Boxes. It works great.

    I can't figure out where the image file for that guest virtual machine...
  25. [ubuntu] Re: Ubuntu Software Center Unable to Install Updates to Installed Software

    Testing out your idea on just the one software package ("Cozy"), I did this:


    main1@system1:~$ flatpak update com.github.geigi.cozy
    Looking for updates…


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