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I discovered a couple of things that might help someone else:

An online test for IPv6 capability: http://test-ipv6.com/
Software that aims to fix problem: https://www.remlab.net/miredo/

I've...

The comments at http://unix.stackexchange.com/questions/9940/convince-apt-get-not-to-use-ipv6-method show ways to tailor preferences for particular repositories. That's better than disabling IPv6...

FYI: http://www.techrepublic.com/article/how-to-fix-the-slow-apt-get-update-issue-on-linux-machines/

The comments at the end best summarize my attitude, especially,



Any ideas?

I tried the password change technique described at http://askubuntu.com/questions/24006/how-do-i-reset-a-lost-administrative-password. I tried the main one in the article and a similar method...

I got home, changed the mirror to http://www.gtlib.gatech.edu/pub/ubuntu, and updates were still extremely slow!

Based on...

When I get home I will. There's no point in doing it at the cafe when all updates are proceeding very quickly without changing mirrors. If I can't duplicate the problem here, nothing I do can justify...

It always sounded like a great idea to me, but I was afraid something would go wrong. There were plenty of horror stories of people who bricked their machine and/or data, so I never tried it.

In...

I will test the password change method and see if it allows access to encrypted home folder. I use vmplayer for virtual machines. I've never seen a grub menu in any of my virtual machines. If I can't...

I don't think the mirror is the problem. All three Ubuntu machines (2 physical and 1 virtual) use us.archive.ubuntu.com and security.ubuntu.com. For some reason the virtual machine doesn't hang and...

Updating (sudo apt-get update) has been very slow lately. It seems to stall at various points. It takes over 12 minutes to update. This was tested on 2 machines running Ubuntu 16.04, one of which was...

The method requires GRUB, so I wouldn't know how to do it with a virtual machine. I don't know if I have the nerve to attempt it with a physical machine. It might deny subsequent access to my files...

Thank you for your response. I haven't read your links yet, but I have been doing some research.

I learned today that apparently one can change user passwords in Ubuntu even if the current...

I am very interested in increasing security, so I will read those links, but you didn't answer my question. Could someone avoid needing the encryption passphrase if they knew the log in password and...

Although I've taken measures to protect most of my computer files over the years, I did not encrypt my home folder during installation a few years back. (I've been upgrading since.) I'm thinking...

Ha ha! Nonetheless, I'm marking this thread solved!

Thanks for all the replies. It sounds like the consensus is that if the home folder of the host and guest are both unencrypted, then the files on the guest can be read. But if the guest is encrypted...

"(For the purpose of this thought experiment, assume that the home folder of the *host* system is *not* encrypted.)"

I was surprised (even shocked) when I learned a few years ago that if someone steals your computer and takes out the hard drive, they can easily access to your files without your password, unless...

One machine is running 14.04 and the other 16.04 (since December). I can't recall ever seeing the message at home in the past, but I saw it twice yesterday, on two different computers. It made me...

When in coffee shops with my laptop, I sometimes get the following message:

"Network service discovery disabled. Your current network has a .local domain, which is not recommended and incompatible...

Absolutely. Sloppy wording on my part.

Would a Dell PC from Office Depot have the same quality as buying the same computer from Dell?

I'm sure I could build a computer, and I'd like to give it...

Thanks for all the great info.



That makes me feel better about the horror stories I was reading about. On the other hand, my experience was a horror story!

I may be constrained to buy...

I've only bought four computers in my entire life. The first 3 were an HP laptop, a Samsung laptop, and an HP Touchsmart. All dual booted to Windows and Ubuntu, and all of them worked at least 4...

A few days ago I bought an HP Pavilion 510-p030 with Windows 10. I plan to create a partition for Ubuntu (and probably another one for encrypted personal files). However, before I had a chance to...

I upgraded to 16.04.1, in part to see if this mount error message would persist. It does! I'm not a programmer, but I cannot imagine that this is an insurmountable bug. Someone could search the code...