🚩 Files

August 27, 20231 min read Systems Investigate Unix-Like

Find a process blocking a file with fuser: fuser -m </dir or /files> # Find process blocking/using this directory or files. fuser -cu </dir or /files> # Same as above but add the user fuser -kcu </dir or /files> # Kill process fuser -v -k -HUP -i ./ # Send HUP signal to process # Output will send you <PID + letter>,...

🎶 Samba / CIFS

August 26, 20232 min read Systems Disk Unix-Like

Server Side First Install samba and samba-client (for debug + test) /etc/samba/smb.conf [home] Workgroup=WORKGROUP (le grp par defaul sur windows) Hosts allow = ... [shared] browseable = yes path = /shared valid users = user01, @un_group_au_choix writable = yes passdb backend = tdbsam #passwords are stored in the...

🍻 SSHFS

August 25, 20232 min read Systems Disk SSH Unix-Like

SSHFS SshFS sert à monter sur son FS, un autre système de fichier distant, à travers une connexion SSH, le tout avec des droits utilisateur. L’avantage est de manipuler les données distantes avec n’importe quel gestionnaire de fichier (Nautilus, Konqueror, ROX, ou même la ligne de commande). - Pre-requis : droits...

🎳 Cluster HA

August 1, 20232 min read Systems Redhat

This was available on RHEL 6/7 Checking status of the cluster: clustat clustat -m # Display status of and exit clustat -s # Display status of and exit clustat -l # Use long format for services cman_tool status # how local record of cluster status cman_tool nodes # how local record of cluster nodes cman_tool nodes -af...

👢 Boot

August 1, 20232 min read Systems Linux

The Boot - starting process - BIOS est lancé automatiquement et détecte les périphs. - Charge la routine de démarrage depuis le MBR (Master Boot Record) - C'est le disk de boot et se trouve sur le premier secteur du disque dur. - Le MBR contient un loader qui charge le "second stage loader" c'est le "boot loader" qui...

Bash Shortcurt

August 1, 20233 min read Systems Terminal

Most usefull shortcut Ctrl + r : Search and reverse. (ctrl+r pour remonter l’history). Ctrl + l : Clear the screen (instead to use “clear” command). Ctrl + p : Repeat last command. Ctrl + x + Ctrl + e : Edit the current command on an external editor. (Need to define export EDITOR=vim ). Ctrl + shift + v : Copy / paste...

Certificates Authority

August 1, 20231 min read Systems Certificates Unix-Like

Trust a CA on Linux host # [RHEL] RootCA from DC need to be installed on host: cp my-domain-issuing.crt /etc/pki/ca-trust/source/anchors/my_domain_issuing.crt cp my-domain-rootca.crt /etc/pki/ca-trust/source/anchors/my_domain_rootca.crt update-ca-trust extract # [Ubuntu] sudo apt-get install -y ca-certificates sudo cp...

Idm

August 1, 20232 min read Systems Redhat Users

Server Idm - Identity Manager prerequisites : repository configured NTP synchronize check config DHCP/DNS hostname -f == hostname acces to webui IDM : https://idm01.idm.ad-support.local/ipa/ui/ yum install -y ipa-server ipa-server-dns ipa-server-install \ --domain=example.com \ --realm=EXAMPLE.COM \...