I used
% sudo apt-get update
% sudo apt-get install vlc browser-plugin-vlc
I am getting
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package vlc
E: Unable to locate package browser-plugin-vlc
old-releases.ubuntu.com
(in place of archive.ubuntu.com). If you look [with a browser] at archive.ubuntu.com/ubuntu (or whatever site you're using in your/etc/apt/sources.list
) there is no 'zesty' directory anymore; it's been moved to old-releases already. Zesty was NOT patched for Meltdown, any part of Spectre (next patches eta 22-Jan) etc so upgrading to 17.10 is advisible, or using a LTS (eg. 16.04LTS) if you don't like upgrading often. – guiverc Jan 20 '18 at 21:08