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