## Machine virtuelle GENERIC
#### (c'est-à-dire le modèle de toutes les machines virtuelles)
...
### Matériel virtuel
CPU : 1
RAM : 1000 Mio
Stockage de masse : 50 Gio (fichier `sparse` i.e les zéros ne sont pas écrits sur le disque)
### Logiciel
Système d'exploitation : Debian GNU/Linux-libre 11 (Bullseye)
Noyau : Linux-libre LTS (`linux-libre-lts` des dépôts https://linux-libre.fsfla.org)
Sécurités de la maintenance : `etckeeper`, `mollyguard`, `git`, `tig`, `screen`
Mail Transfer Agent : `postfix`
### Caractéristiques notables
Domaine : dns.libre-en-communs.org
Adresse ipv4 publique : 80.67.176.33
Adresse ipv4 interne : 192.168.1.195
Adresse ipv6 publique : 2001:910:1021::4
### Configuration réseau
#### /etc/network/interfaces
# The primary network interface
allow-hotplug enp1s0
iface enp1s0 inet dhcp
iface enp1s0 inet6 static
address 2001:910:1021::4/128
gateway 2001:910:1021::
### Configuration SSH
#### /etc/ssh/sshd_config
# $OpenBSD: sshd_config,v 1.103 2018/04/09 20:41:22 tj Exp $
# This is the sshd server system-wide configuration file. See
# sshd_config(5) for more information.
# This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin
Port 22
AddressFamily any
ListenAddress 0.0.0.0
ListenAddress ::
PubkeyAuthentication yes
PasswordAuthentication no
PermitEmptyPasswords no
ChallengeResponseAuthentication no
UsePAM yes
PrintMotd no
AcceptEnv LANG LC_* GIT_*
Subsystem sftp /usr/lib/openssh/sftp-server
Match Group ssh-login
PasswordAuthentication yes
#### /etc/hosts.allow
sshd: 192.168.1.0/24, [2001:910:1021::]/48
#### /etc/hosts/deny
sshd: ALL
### Pare-feu
Installation :
```
apt-get install ufw
```
Ouvrir le port SSH :
```
ufw allow SSH
ufw enable
systemclt enable ufw
```
### Configuration SUDO
#### /etc/sudoers
#
# This file MUST be edited with the 'visudo' command as root.
#
# Please consider adding local content in /etc/sudoers.d/ instead of
# directly modifying this file.
#
# See the man page for details on how to write a sudoers file.
#
Defaults env_reset
Defaults env_keep += "GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL"
Defaults mail_badpass, insults
Defaults secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
# Host alias specification
# User alias specification
# Cmnd alias specification
# User privilege specification
root ALL=(ALL:ALL) ALL
# Allow members of group sudo to execute any command
%sudo ALL=(ALL:ALL) NOPASSWD:ALL
# See sudoers(5) for more information on "#include" directives:
#includedir /etc/sudoers.d
### Configuration MTA
#### /etc/postfix/transport
a-lec.org :
* discard:
#### /etc/postfix/virtual
@localhost admin@a-lec.org
@generic.a-lec.org admin@a-lec.org
### Configuration système de fichier partagé
#### /etc/fstab (extrait)
/vm_sharedfs /opt/vm_sharedfs 9p trans=virtio,version=9p2000.L,ro 0 0
#### /etc/initramfs-tools/modules
9p
9pnet
9pnet_virtio
Note: côté hyperviseur, il faut configurer un FS partagé en mode "mapped" avec pour cible /vm_sharedfs.
### Configurations bashrc
#### /etc/skel/.bashrc (et /home/admin666/.bashrc)
# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples
# If not running interactively, don't do anything
case $- in
*i*) ;;
*) return;;
esac
# don't put duplicate lines or lines starting with space in the history.
# See bash(1) for more options
HISTCONTROL=ignoreboth
# append to the history file, don't overwrite it
shopt -s histappend
# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=1000
HISTFILESIZE=2000
# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize
# If set, the pattern "**" used in a pathname expansion context will
# match all files and zero or more directories and subdirectories.
#shopt -s globstar
# make less more friendly for non-text input files, see lesspipe(1)
#[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"
# set variable identifying the chroot you work in (used in the prompt below)
if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
debian_chroot=$(cat /etc/debian_chroot)
fi
# set a fancy prompt (non-color, unless we know we "want" color)
case "$TERM" in
xterm-color|*-256color) color_prompt=yes;;
esac
# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
#force_color_prompt=yes
if [ -n "$force_color_prompt" ]; then
if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
# We have color support; assume it's compliant with Ecma-48
# (ISO/IEC-6429). (Lack of such support is extremely rare, and such
# a case would tend to support setf rather than setaf.)
color_prompt=yes
else
color_prompt=
fi
fi
if [ "$color_prompt" = yes ]; then
PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\H\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
else
PS1='${debian_chroot:+($debian_chroot)}\u@\H:\w\$ '
fi
unset color_prompt force_color_prompt
# If this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)
PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\H: \w\a\]$PS1"
;;
*)
;;
esac
# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
alias ls='ls --color=auto'
alias dir='dir --color=auto'
alias vdir='vdir --color=auto'
alias grep='grep --color=auto'
alias fgrep='fgrep --color=auto'
alias egrep='egrep --color=auto'
fi
# colored GCC warnings and errors
#export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'
# some more ls aliases
alias ll='ls -l'
alias la='ls -A'
#alias l='ls -CF'
# Alias definitions.
# You may want to put all your additions into a separate file like
# ~/.bash_aliases, instead of adding them here directly.
# See /usr/share/doc/bash-doc/examples in the bash-doc package.
if [ -f ~/.bash_aliases ]; then
. ~/.bash_aliases
fi
# enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
if ! shopt -oq posix; then
if [ -f /usr/share/bash-completion/bash_completion ]; then
. /usr/share/bash-completion/bash_completion
elif [ -f /etc/bash_completion ]; then
. /etc/bash_completion
fi
fi
#### /root/.bashrc
# ~/.bashrc: executed by bash(1) for non-login shells.
# Note: PS1 and umask are already set in /etc/profile. You should not
# need this unless you want different defaults for root.
# PS1='${debian_chroot:+($debian_chroot)}\h:\w\$ '
PS1='\[\033[01;32m\]=(^-^)=${debian_chroot:+($debian_chroot)}\[\033[01;31m\]\u@\H\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
# umask 022
# You may uncomment the following lines if you want `ls' to be colorized:
export LS_OPTIONS='--color=auto'
# eval "`dircolors`"
alias ls='ls $LS_OPTIONS'
alias ll='ls $LS_OPTIONS -l'
alias l='ls $LS_OPTIONS -lA'
#
# Some more alias to avoid making mistakes:
# alias rm='rm -i'
# alias cp='cp -i'
# alias mv='mv -i'
# enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
if ! shopt -oq posix; then
if [ -f /usr/share/bash-completion/bash_completion ]; then
. /usr/share/bash-completion/bash_completion
elif [ -f /etc/bash_completion ]; then
. /etc/bash_completion
fi
fi