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34fdc4 Cédric 2025-12-24 09:33:29 1 
#### Configuration IP et systemd :
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Restart du démon network, prise en compte des paramètres dans /etc/systemd/network/50-default.network
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systemctl restart systemd-networkd
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On peut ajouter des sections [Address] avec des alias/ip suplémentaires (v4/v6)
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(https://www.freedesktop.org/software/systemd/man/systemd.network.html)
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#### Les outils qui vont bien pour faire de la supervision nunux
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```shell
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nmon
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bmon
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nethogs
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slurm -l -i eno1
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vnstat
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tcptrack
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speedometer -r eno1 -t eno1
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pktstat
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ifstat (batch mode, toutes les secondes, stats)
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iperf
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```
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(https://www.binarytides.com/linux-commands-monitor-network/)
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#### Outils système :
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```shell
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atop
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vmstat
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lsof
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htop
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iotop
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iostat
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```
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#### Changer le bit "immutable" :
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```shell
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chattr -i php7.0.cgi
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```
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#### Disable de la politique d'expiration de mdp :
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```shell
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chage -M 99999 -m 0 -I -1 -E -1 root
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```
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#### Ajouter un certificat racine dans un Ubuntu / Debian :
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```shell
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sudo apt-get install -y ca-certificates
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sudo cp local-ca.crt /usr/local/share/ca-certificates
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sudo update-ca-certificates
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### Installer une version spécifique d'un package, par exemple docker-ce
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```shell
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apt list --all-versions docker-ce
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docker-ce/trixie 5:29.1.3-1~debian.13~trixie amd64 [upgradable from: 5:28.1.1-1~debian.13~trixie]
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docker-ce/trixie 5:29.1.2-1~debian.13~trixie amd64
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docker-ce/trixie 5:29.1.1-1~debian.13~trixie amd64
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docker-ce/trixie 5:29.1.0-1~debian.13~trixie amd64
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docker-ce/trixie 5:29.0.4-1~debian.13~trixie amd64
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docker-ce/trixie 5:29.0.3-1~debian.13~trixie amd64
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docker-ce/trixie 5:29.0.2-1~debian.13~trixie amd64
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docker-ce/trixie 5:29.0.1-1~debian.13~trixie amd64
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docker-ce/trixie 5:29.0.0-1~debian.13~trixie amd64
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docker-ce/trixie 5:28.5.2-1~debian.13~trixie amd64
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docker-ce/trixie 5:28.5.1-1~debian.13~trixie amd64
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docker-ce/trixie 5:28.5.0-1~debian.13~trixie amd64
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docker-ce/trixie 5:28.4.0-1~debian.13~trixie amd64
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docker-ce/trixie 5:28.3.3-1~debian.13~trixie amd64
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docker-ce/trixie 5:28.3.2-1~debian.13~trixie amd64
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docker-ce/trixie 5:28.3.1-1~debian.13~trixie amd64
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docker-ce/trixie 5:28.3.0-1~debian.13~trixie amd64
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docker-ce/trixie 5:28.2.2-1~debian.13~trixie amd64
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docker-ce/trixie 5:28.2.1-1~debian.13~trixie amd64
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docker-ce/trixie 5:28.2.0-1~debian.13~trixie amd64
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docker-ce/trixie,now 5:28.1.1-1~debian.13~trixie amd64 [installed,upgradable to: 5:29.1.3-1~debian.13~trixie]
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docker-ce/trixie 5:28.1.0-1~debian.13~trixie amd64
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```
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... ensuite installer une version avec apt :
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```shell
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apt install docker-ce="5:28.1.1-1~debian.13~trixie" docker-ce-cli="5:28.1.1-1~debian.13~trixie" containerd.io docker-buildx-plugin docker-compose-plugin
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containerd.io is already the newest version (2.2.1-1~debian.13~trixie).
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docker-buildx-plugin is already the newest version (0.30.1-1~debian.13~trixie).
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docker-compose-plugin is already the newest version (5.0.0-1~debian.13~trixie).
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Installing:
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docker-ce docker-ce-cli
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Suggested packages:
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cgroupfs-mount | cgroup-lite
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Summary:
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Upgrading: 0, Installing: 2, Removing: 0, Not Upgrading: 0
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Download size: 34.9 MB
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Space needed: 131 MB / 94.0 GB available
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Continue? [Y/n]
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Get:1 https://download.docker.com/linux/debian trixie/stable amd64 docker-ce-cli amd64 5:28.1.1-1~debian.13~trixie [15.8 MB]
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Get:2 https://download.docker.com/linux/debian trixie/stable amd64 docker-ce amd64 5:28.1.1-1~debian.13~trixie [19.2 MB]
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Fetched 34.9 MB in 1s (40.2 MB/s)
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Selecting previously unselected package docker-ce-cli.
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(Reading database ... 45882 files and directories currently installed.)
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Preparing to unpack .../docker-ce-cli_5%3a28.1.1-1~debian.13~trixie_amd64.deb ...
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Unpacking docker-ce-cli (5:28.1.1-1~debian.13~trixie) ...
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Selecting previously unselected package docker-ce.
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Preparing to unpack .../docker-ce_5%3a28.1.1-1~debian.13~trixie_amd64.deb ...
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Unpacking docker-ce (5:28.1.1-1~debian.13~trixie) ...
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Setting up docker-ce-cli (5:28.1.1-1~debian.13~trixie) ...
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Setting up docker-ce (5:28.1.1-1~debian.13~trixie) ...
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Processing triggers for man-db (2.13.1-1) ...
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root@docker-dev:/home/dozzle-agent docker version
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Client: Docker Engine - Community
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Version: 28.1.1
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API version: 1.49
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Go version: go1.23.8
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Git commit: 4eba377
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Built: Fri Apr 18 09:52:34 2025
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OS/Arch: linux/amd64
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Context: default
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Server: Docker Engine - Community
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Engine:
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Version: 28.1.1
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API version: 1.49 (minimum version 1.24)
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Go version: go1.23.8
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Git commit: 01f442b
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Built: Fri Apr 18 09:52:34 2025
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OS/Arch: linux/amd64
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Experimental: false
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containerd:
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Version: v2.2.1
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GitCommit: dea7da592f5d1d2b7755e3a161be07f43fad8f75
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runc:
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Version: 1.3.4
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GitCommit: v1.3.4-0-gd6d73eb8
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docker-init:
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Version: 0.19.0
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GitCommit: de40ad0
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root@docker-dev:/home/dozzle-agent
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```