sudo update-alternatives --config editor

alternative editor (/usr/bin/editor を提供) には 3 個の選択肢があります。

  選択肢    パス             優先度  状態
------------------------------------------------------------
* 0            /bin/nano           40        自動モード [#p4122406]
  1            /bin/ed            -100       手動モード
  2            /bin/nano           40        手動モード
  3            /usr/bin/vim.tiny   10        手動モード

現在の選択 [*] を保持するには <Enter>、さもなければ選択肢の番号のキーを押してください: 3
update-alternatives: /usr/bin/editor (editor) を提供するためにマニュアルモードで /usr/bin/vim.tiny を使います

set encoding=utf-8
set fileencoding=utf-8
set fileencodings=utf-8,utf-16,japan

set backspace=2
set tabstop=2
set shiftwidth=4
set expandtab

highlight tabs ctermbg=green guibg=green

set list
set number
set ruler
set smartindent

alias rm='rm -i'
alias cp='cp -i'
alias mv='mv -i'
alias sl='ls'

if [[ -x `which colordiff` ]]; then
  alias diff='colordiff -u'
else
  alias diff='diff -u'
fi

# コメントアウトされているので解除する
force_color_prompt=yes

  :
  :

# 以下のPS1を編集して表示したいプロンプトに変更する
if [ "$color_prompt" = yes ]; then
    PS1='[`if [ $? = 0 ]; then echo -n "\[\033[1;32m\]✔" ; else echo -n "\[\033[1;31m\]✘"; fi;` \t\[\033[m\] <\[\033[1;33m\]${debian_chroot:+($debian_chroot)}\u\[\033[m\]@\[\033[1;36m\]\h\[\033[m\]%\[\033[1;35m\]${ENV_NAME}\[\033[m\]> \w]\$ '
else

  :
  :

sudo apt-get purge network-manager

$ sudo lshw -short | grep network
/0/100/1d.3/0   enp0s10        network        RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller

auto lo
iface lo inet loopback

auto enp0s10
iface enp0s10 inet static
address 192.168.0.190
netmask 255.255.255.0
gateway 192.168.0.1
dns-nameservers 192.168.0.1

sudo ifup enp0s10

$ ip address
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
2: enp0s10: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.10/24 brd 192.168.0.255 scope global enp0s10
       valid_lft forever preferred_lft forever

nameserver 192.168.0.1

sudo resolvconf -u

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1

$ cat /proc/net/if_inet6 
00000000000000000000000000000001 01 80 10 80       lo
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 02 40 20 80  enp0s10

$ sudo sysctl -p
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1

$ cat /proc/net/if_inet6 

sudo apt-get install bridge-utils

auto lo
iface lo inet loopback

auto enp0s10
iface enp0s10 inet manual
up /sbin/ifconfig enp0s10 promisc

auto br0
iface br0 inet static
address 192.168.0.10
netmask 255.255.255.0
gateway 192.168.0.1
dns-nameservers 192.168.0.1
bridge_ports enp0s10
bridge_stp off
bridge_maxwait 1

sudo ifdown enp0s10
sudo ifup br0

$ ip address
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
2: enp0s10: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UP group default qlen 1000
    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
3: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.10/24 brd 192.168.0.255 scope global br0
       valid_lft forever preferred_lft forever

vm.swappiness = 10

$ cat /proc/sys/vm/swappiness 
60

$ sudo sysctl -p
vm.swappiness = 10

$ cat /proc/sys/vm/swappiness 
10

blacklist floppy

sudo rmmod floppy
sudo update-initramfs -u

sudo unlink /media/floppy
sudo rmdir /media/floppy0

$ lsmod | grep -i floppy

# 一般ユーザーのグループ・ユーザーの作成
sudo groupadd -g 1001 user2
sudo adduser --uid 1001 --gid 1001 user2

# 管理者ユーザーにする場合(sudoグループ・admグループに追加)
sudo gpasswd -a user2 sudo
sudo gpasswd -a user2 adm

# ホームディレクトリ・ログインシェルを持たないユーザーを作成する場合
sudo adduser --uid 5000 --gid 5000 --disabled-login --disabled-password --no-create-home user3

sudo apt-get purge \
  bluez-cups \
  cheese \
  cups cups-bsd cups-client cups-common cups-browsed cups-core-drivers cups-daemon cups-server-common \
  deja-dup \
  'empathy(-.*)?' \
  enchant \
  'espeak(-.*)?' \
  evolution-data-server evolution-data-server-online-accounts \
  example-content \
  'friends(-.*)?' \
  gnome-accessibility-themes \
  gnome-contacts gnome-mahjongg gnome-mines gnome-sudoku \
  gnome-online-accounts \
  'gwibber-service(-.*)?' \
  hpijs hplip hplip hplip-data \
  indicator-messages indicator-printers \
  modemmanager \
  ntfs-3g libntfs-3g.* libntfs.* \
  nano \
  ppp pppconfig pppoeconf \
  'remmina(-.*)?' \
  'rhythmbox(-.*)?' \
  sane-utils libsane.* \
  signon-ui signon-plugin-.* account-plugin-.* signon-.* signond \
  'shotwel(-.*)?' \
  'telepathy(-.*)?' libtelepathy.* \
  toshset \
  unity-lens-.* \
  unity-scope-colourlovers unity-scope-gdrive unity-scope-gmusicbrowser unity-scope-gourmet unity-scope-musicstores  unity-scope-musique unity-scope-openclipart unity-scope-virtualbox unity-scope-zotero \
  'telepathy(-.*)?' \
  wamerican wbritish \
  zeitgeist zeitgeist-core zeitgeist-datahub python-zeitgeist

sudo apt-get install \
  autoconf automake autotools-dev build-essential gettext libtool bison \
  cmake \
  colordiff \
  chromium-browser \
  flashplugin-installer \
  gedit-plugins \
  git \
  gsmartcontrol \
  gimp \
  gparted \
  hddtemp \
  ibus-mozc \
  indicator-multiload \
  icedax \
  lighttpd lighttpd-mod-magnet lighttpd-mod-webdav \
  logwatch \
  lm-sensors \
  mdadm \
  mono-mcs mono-csharp-shell libmono-simd.*-cil \
  monodevelop monodevelop-nunit monodevelop-versioncontrol nunit-console \
  munin munin-node \
  nasm \
  nethogs \
  nfs-kernel-server \
  nkf \
  ntp \
  php7.0-cgi \
  samba \
  smartmontools \
  swig \
  subversion subversion-tools \
  system-config-lvm \
  synaptic \
  tree \
  fonts-vlgothic fonts-ipafont.* fonts-monapo fonts-takao.* fonts-mikachan \
  unity-scope-home unity-scopes-master-default unity-scopes-runner \
  unity-lens-applications unity-lens-files \
  virt-manager qemu-kvm \
  vlc \
  xinetd \
  yasm \
  w3m

gsettings set org.gnome.nautilus.preferences always-use-location-entry true

XDG_DESKTOP_DIR="$HOME/Desktop"
XDG_DOWNLOAD_DIR="$HOME/Downloads"

# 以下のディレクトリはNautilusのサイドバーに表示させない
#XDG_TEMPLATES_DIR="$HOME/Templates"
#XDG_PUBLICSHARE_DIR="$HOME/Public"
#XDG_DOCUMENTS_DIR="$HOME/Documents"
#XDG_MUSIC_DIR="$HOME/Music"
#XDG_PICTURES_DIR="$HOME/Pictures"
#XDG_VIDEOS_DIR="$HOME/Videos"

enabled=False

[Disable power management]
Identity=unix-user:*
Action=org.freedesktop.login1.reboot;org.freedesktop.login1.reboot-multiple-sessions;org.freedesktop.login1.power-off;org.freedesktop.login1.power-off-multiple-sessions;org.freedesktop.login1.suspend;org.freedesktop.login1.suspend-multiple-sessions;org.freedesktop.login1.hibernate;org.freedesktop.login1.hibernate-multiple-sessions
ResultAny=no
ResultInactive=no
ResultActive=no

sudo service lightdm restart

sudo reboot # 再起動
sudo shutdown -h # 電源オフ

sudo dpkg-reconfigure keyboard-configuration

[Seat:*]
user-session=ubuntu
allow-guest=false

sudo service lightdm restart

cd ~
LANG=C xdg-user-dirs-gtk-update

enabled=False

rmdir Documents/ Public/ Templates/

sudo mkdir /var/lib/lockdown
sudo chmod 777 /var/lib/lockdown

service svn
{
        disable         = no
        socket_type     = stream
        user            = svn
        wait            = no
        server          = /usr/bin/svnserve
        server_args     = -i -r /srv/repos/svn
        only_from       = 192.168.0.0/24 127.0.0.1
        log_on_failure  += USERID
}

sudo groupadd -g 601 svn
sudo adduser --uid 601 --gid 601 --disabled-login --disabled-password --no-create-home svn

sudo mkdir -p /srv/repos/svn
sudo chown svn:svn /srv/repos/svn/

$ dmesg | grep IOMMU
[    0.000000] DMAR: IOMMU enabled

$ dmesg | grep libvirt

[  585.002227] audit: type=1400 audit(1486069534.271:84): apparmor="DENIED" operation="open" profile="libvirt-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" name="/run/udev/data/c189:1" pid=5275 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=121 ouid=0
[  585.002277] audit: type=1400 audit(1486069534.271:85): apparmor="DENIED" operation="open" profile="libvirt-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" name="/run/udev/data/c189:2" pid=5275 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=121 ouid=0
[  585.002322] audit: type=1400 audit(1486069534.271:86): apparmor="DENIED" operation="open" profile="libvirt-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" name="/run/udev/data/c189:3" pid=5275 comm="qemu-system-x86" requested_mask="r" denied_mask="r" fsuid=121 ouid=0
  :
  :

  # for usb access
  /dev/bus/usb/ rw,
  /etc/udev/udev.conf r,
  /sys/bus/ r,
  /sys/class/ r,

profile libvirt-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx {
  #include <abstractions/libvirt-qemu>
  #include <libvirt/libvirt-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.files>

  /dev/bus/usb/*/[0-9]* rw,
  /run/udev/** rw,
}

sudo apparmor_parser -r /etc/apparmor.d/libvirt/libvirt-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx