329 lines
8.7 KiB
Markdown
329 lines
8.7 KiB
Markdown
## Machine virtuelle GENERIC
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#### (c'est-à-dire le modèle de toutes les machines virtuelles)
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...
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### Matériel virtuel
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CPU : 1
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RAM : 1000 Mio
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Stockage de masse : 50 Gio (fichier `sparse` i.e les zéros ne sont pas écrits sur le disque)
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### Logiciel
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Système d'exploitation : Debian GNU/Linux-libre 11 (Bullseye)
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Noyau : Linux-libre LTS (`linux-libre-lts` des dépôts https://linux-libre.fsfla.org)
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Sécurités de la maintenance : `etckeeper`, `mollyguard`, `git`, `tig`, `screen`
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Mail Transfer Agent : `postfix`
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### Caractéristiques notables
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Domaine : dns.libre-en-communs.org
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Adresse ipv4 publique : 80.67.176.33
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Adresse ipv4 interne : 192.168.1.4
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Adresse ipv6 publique : 2001:910:1021::4
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### Configuration réseau
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#### /etc/network/interfaces
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<details>
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# This file describes the network interfaces available on your system
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# and how to activate them. For more information, see interfaces(5).
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source /etc/network/interfaces.d/*
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# The loopback network interface
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auto lo
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iface lo inet loopback
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# The primary network interface
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allow-hotplug enp1s0
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iface enp1s0 inet static
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address 192.168.1.4/32
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broadcast 192.168.255.255
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gateway 192.168.0.1
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netmask 255.255.0.0
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iface enp1s0 inet6 static
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address 2001:910:1021::4/128
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gateway 2001:910:1021::
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</details>
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### Configuration SSH
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#### /etc/ssh/sshd_config
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<details>
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# $OpenBSD: sshd_config,v 1.103 2018/04/09 20:41:22 tj Exp $
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# This is the sshd server system-wide configuration file. See
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# sshd_config(5) for more information.
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# This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin
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Port 22
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AddressFamily any
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ListenAddress 0.0.0.0
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ListenAddress ::
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PubkeyAuthentication yes
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PasswordAuthentication no
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PermitEmptyPasswords no
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ChallengeResponseAuthentication no
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UsePAM yes
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PrintMotd no
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AcceptEnv LANG LC_* GIT_*
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Subsystem sftp /usr/lib/openssh/sftp-server
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Match Group ssh-login
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PasswordAuthentication yes
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</details>
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#### /etc/hosts.allow
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sshd: 192.168.1.0/24, [2001:910:1021::]/48
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#### /etc/hosts.deny
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sshd: ALL
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### Pare-feu
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Installation :
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```
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apt-get install ufw
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```
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Ouvrir le port SSH :
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```
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ufw allow SSH
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ufw enable
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systemclt enable ufw
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```
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### Configuration SUDO
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#### /etc/sudoers
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<details>
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#
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# This file MUST be edited with the 'visudo' command as root.
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#
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# Please consider adding local content in /etc/sudoers.d/ instead of
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# directly modifying this file.
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#
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# See the man page for details on how to write a sudoers file.
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#
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Defaults env_reset
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Defaults env_keep += "GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL"
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Defaults mail_badpass, insults
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Defaults secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
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# Host alias specification
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# User alias specification
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# Cmnd alias specification
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# User privilege specification
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root ALL=(ALL:ALL) ALL
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# Allow members of group sudo to execute any command
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%sudo ALL=(ALL:ALL) NOPASSWD:ALL
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# See sudoers(5) for more information on "#include" directives:
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#includedir /etc/sudoers.d
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</details>
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### Configuration MTA
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#### /etc/postfix/transport
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a-lec.org :
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* discard:
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#### /etc/postfix/virtual
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@localhost admin@a-lec.org
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@generic.a-lec.org admin@a-lec.org
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### Configuration système de fichier partagé
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#### /etc/fstab (extrait)
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<details>
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tmpfs /tmp tmpfs mode=1777,nosuid,nodev 0 0
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</details>
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### Configurations bashrc
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#### /etc/skel/.bashrc (et /home/admin666/.bashrc)
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<details>
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# ~/.bashrc: executed by bash(1) for non-login shells.
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# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
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# for examples
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# If not running interactively, don't do anything
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case $- in
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*i*) ;;
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*) return;;
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esac
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# don't put duplicate lines or lines starting with space in the history.
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# See bash(1) for more options
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HISTCONTROL=ignoreboth
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# append to the history file, don't overwrite it
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shopt -s histappend
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# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
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HISTSIZE=1000
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HISTFILESIZE=2000
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# check the window size after each command and, if necessary,
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# update the values of LINES and COLUMNS.
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shopt -s checkwinsize
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# If set, the pattern "**" used in a pathname expansion context will
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# match all files and zero or more directories and subdirectories.
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#shopt -s globstar
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# make less more friendly for non-text input files, see lesspipe(1)
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#[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"
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# set variable identifying the chroot you work in (used in the prompt below)
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if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
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debian_chroot=$(cat /etc/debian_chroot)
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fi
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# set a fancy prompt (non-color, unless we know we "want" color)
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case "$TERM" in
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xterm-color|*-256color) color_prompt=yes;;
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esac
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# uncomment for a colored prompt, if the terminal has the capability; turned
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# off by default to not distract the user: the focus in a terminal window
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# should be on the output of commands, not on the prompt
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#force_color_prompt=yes
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if [ -n "$force_color_prompt" ]; then
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if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
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# We have color support; assume it's compliant with Ecma-48
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# (ISO/IEC-6429). (Lack of such support is extremely rare, and such
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# a case would tend to support setf rather than setaf.)
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color_prompt=yes
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else
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color_prompt=
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fi
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fi
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if [ "$color_prompt" = yes ]; then
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PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\H\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
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else
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PS1='${debian_chroot:+($debian_chroot)}\u@\H:\w\$ '
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fi
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unset color_prompt force_color_prompt
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# If this is an xterm set the title to user@host:dir
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case "$TERM" in
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xterm*|rxvt*)
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PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\H: \w\a\]$PS1"
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;;
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*)
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;;
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esac
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# enable color support of ls and also add handy aliases
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if [ -x /usr/bin/dircolors ]; then
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test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
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alias ls='ls --color=auto'
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alias dir='dir --color=auto'
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alias vdir='vdir --color=auto'
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alias grep='grep --color=auto'
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alias fgrep='fgrep --color=auto'
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alias egrep='egrep --color=auto'
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fi
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# colored GCC warnings and errors
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#export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'
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# some more ls aliases
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alias ll='ls -l'
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alias la='ls -A'
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#alias l='ls -CF'
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# Alias definitions.
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# You may want to put all your additions into a separate file like
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# ~/.bash_aliases, instead of adding them here directly.
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# See /usr/share/doc/bash-doc/examples in the bash-doc package.
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if [ -f ~/.bash_aliases ]; then
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. ~/.bash_aliases
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fi
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# enable programmable completion features (you don't need to enable
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# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
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# sources /etc/bash.bashrc).
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if ! shopt -oq posix; then
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if [ -f /usr/share/bash-completion/bash_completion ]; then
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. /usr/share/bash-completion/bash_completion
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elif [ -f /etc/bash_completion ]; then
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. /etc/bash_completion
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fi
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fi
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</details>
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#### /root/.bashrc
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<details>
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# ~/.bashrc: executed by bash(1) for non-login shells.
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# Note: PS1 and umask are already set in /etc/profile. You should not
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# need this unless you want different defaults for root.
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# PS1='${debian_chroot:+($debian_chroot)}\h:\w\$ '
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PS1='\[\033[01;32m\]=(^-^)=${debian_chroot:+($debian_chroot)}\[\033[01;31m\]\u@\H\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
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# umask 022
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# You may uncomment the following lines if you want `ls' to be colorized:
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export LS_OPTIONS='--color=auto'
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# eval "`dircolors`"
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alias ls='ls $LS_OPTIONS'
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alias ll='ls $LS_OPTIONS -l'
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alias l='ls $LS_OPTIONS -lA'
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#
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# Some more alias to avoid making mistakes:
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# alias rm='rm -i'
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# alias cp='cp -i'
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# alias mv='mv -i'
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# enable programmable completion features (you don't need to enable
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# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
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# sources /etc/bash.bashrc).
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if ! shopt -oq posix; then
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if [ -f /usr/share/bash-completion/bash_completion ]; then
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. /usr/share/bash-completion/bash_completion
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elif [ -f /etc/bash_completion ]; then
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. /etc/bash_completion
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fi
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fi
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</details>
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