Open Source Admin-Handbuch der Linuxfabrik

Linux (Fokus: RHEL)

Das System
Disks und Dateisysteme
Netzwerk
Sicherheit
Repositories

Operating Systems

Fedora Server
Raspberry Pi OS
RHEL und kompatible
Rocky Linux
Ubuntu
Windows

Themen

Apache vs. HAProxy
Backup
Benchmarks
Collabora vs. LibreOffice
Container
DCI
Firewalls
FreeIPA vs. Microsoft Active Directory
GUI-Toolkits
KI
Load Balancing und High Availability
Logging
NFS vs. iSCSI
NTP
OpenID Connect & SAML
OpenSearch vs. Elasticsearch
Passwörter
Redfish
Reguläre Ausdrücke
Repo Server
Reverse Proxy
Security: Grundlagen
Security: CIS
Security: Tools
SNMP
TLS
Upstream

Software

Hardware

BIOS/Firmware
CPUs
Huawei
Keyboard-Layouts
QNAP QTS
Fiberstore (FS)
Tolino eReader
turris Omnia

Appendix

ASCII- und andere Codierungstabellen
Datacenter Tier-Level
Glossar
Open Source Lizenzen
Lorem ipsum
Netzwerk MAC-Adressen
Netzwerk-Ports
RST (reStructured Text)
Stichwortverzeichnis

Monitoring-Plugins (Github)

LFOps (Github)

LFOps - Ansible Collection of Roles, Playbooks and Plugins for managing Linux-based Cloud Infrastructures
Ansible Role acme_sh
Ansible Role ansible_init
Ansible Role apache_httpd
Ansible Role apache_solr
Ansible Role apache_tomcat
Ansible Role apps
Ansible Role at
Ansible Role audit
Ansible Role bind
Ansible Role blocky
Ansible Role borg_local
Ansible Role chrony
Ansible Role clamav
Ansible Role cloud_init
Ansible Role cockpit
Ansible Role collabora
Ansible Role collect_rpmnew_rpmsave
Ansible Role coturn
Ansible Role crypto_policy
Ansible Role dnf_makecache
Ansible Role dnf_versionlock
Ansible Role docker
Ansible Role duplicity
Ansible Role elasticsearch_oss
Ansible Role exoscale_vm
Ansible Role fail2ban
Ansible Role fangfrisch
Ansible Role files
Ansible Role firewall
Ansible Role freeipa_client
Ansible Role freeipa_server
Ansible Role github_project_createrepo
Ansible Role gitlab_ce
Ansible Role glances
Ansible Role glpi_agent
Ansible Role grafana
Ansible Role grafana_grizzly
Ansible Role grav
Ansible Role graylog_datanode
Ansible Role graylog_server
Ansible Role haveged
Ansible Role hetzner_vm
Ansible Role hostname
Ansible Role icinga2_agent
Ansible Role icinga2_master
Ansible Role icingadb
Ansible Role icingadb_web
Ansible Role icingaweb2
Ansible Role icingaweb2_module_businessprocess
Ansible Role icingaweb2_module_company
Ansible Role icingaweb2_module_cube
Ansible Role icingaweb2_module_director
Ansible Role icingaweb2_module_doc
Ansible Role icingaweb2_module_fileshipper
Ansible Role icingaweb2_module_generictts
Ansible Role icingaweb2_module_grafana
Ansible Role icingaweb2_module_incubator
Ansible Role icingaweb2_module_jira
Ansible Role icingaweb2_module_monitoring
Ansible Role icingaweb2_module_reporting
Ansible Role icingaweb2_module_vspheredb
Ansible Role icingaweb2_module_x509
Ansible Role icingaweb2_theme_linuxfabrik
Ansible Role influxdb
Ansible Role infomaniak_vm
Ansible Role kdump
Ansible Role keepalived
Ansible Role kernel_settings
Ansible Role keycloak
Ansible Role kvm_host
Ansible Role kvm_vm
Ansible Role libmaxminddb
Ansible Role librenms
Ansible Role libreoffice
Ansible Role login
Ansible Role logrotate
Ansible Role mailto_root
Ansible Role mailx
Ansible Role mariadb_server
Ansible Role maxmind_geoip
Ansible Role minio_client
Ansible Role mirror
Ansible Role mod_maxminddb
Ansible Role mongodb
Ansible Role monitoring_plugins
Ansible Role monitoring_plugins_grafana_dashboards
Ansible Role moodle
Ansible Role motd
Ansible Role mount
Ansible Role network
Ansible Role nextcloud
Ansible Role nfs_client
Ansible Role nfs_server
Ansible Role nodejs
Ansible Role objectstore_backup
Ansible Role open_vm_tools
Ansible Role opensearch
Ansible Role openvpn_server
Ansible Role php
Ansible Role podman_containers
Ansible Role policycoreutils
Ansible Role postfix
Ansible Role postgresql_server
Ansible Role python
Ansible Role python_venv
Ansible Role qemu_guest_agent
Ansible Role redis
Ansible Role repo_baseos
Ansible Role repo_collabora
Ansible Role repo_collabora_code
Ansible Role repo_debian_base
Ansible Role repo_docker
Ansible Role repo_elasticsearch
Ansible Role repo_elasticsearch_oss
Ansible Role repo_epel
Ansible Role repo_gitlab_ce
Ansible Role repo_gitlab_runner
Ansible Role repo_grafana
Ansible Role repo_graylog
Ansible Role repo_icinga
Ansible Role repo_influxdb
Ansible Role repo_mariadb
Ansible Role repo_mongodb
Ansible Role repo_monitoring_plugins
Ansible Role repo_mydumper
Ansible Role repo_opensearch
Ansible Role repo_postgresql
Ansible Role repo_redis
Ansible Role repo_remi
Ansible Role repo_rpmfusion
Ansible Role repo_sury
Ansible Role rocketchat
Ansible Role rsyslog
Ansible Role selinux
Ansible Role shared
Ansible Role shell
Ansible Role snmp
Ansible Role bind
Ansible Role sshd
Ansible Role system_update
Ansible Role systemd_journald
Ansible Role systemd_unit
Ansible Role telegraf
Ansible Role timezone
Ansible Role tools
Ansible Role unattended_upgrades
Ansible Role vsftpd
Ansible Role wordpress
Ansible Role yum_utils

Open Source Admin-Handbuch der Linuxfabrik

<no title>
Das System

Das System

Anaconda und Kickstart
- Kickstart-Datei
- Gehärtete Kickstart-Datei
- Troubleshooting
anacron
at
Bash
- Terminals
- Tastaturkürzel
- Kommandos
- Input-Output-Umleitung
Bash-Scripting
- Syntax und Struktur
- Variablen
- Benutzereingaben
- Ausgaben
- Funktionen
- Kontrollstrukturen
- Boolesche Operatoren
- Schleifen
- Mathematik, Berechnungen
- Sub-Shells, Unterprogramme
- Debugging
- Color-Codes
- Snippets
Benutzer und Gruppen
- Benutzer
- Gruppen
- Passwörter
- /etc/passwd
- /etc/shadow
- Root does not exist
Boot
- Shutdown und Neustart
- Runlevel vs. Systemd-Targets
- Systemd
- Boot unterbrechen, Maschine reparieren
- /boot
- GRUB
- root-Passwort zurücksetzen
- EFI-Shell
- Troubleshooting
Chrony
- Konfiguration
- Umgang mit chrony
Compress, Deflate, Archiving
- Archivierungsprogramme
- Packprogramme
configure, make, install
Console
- ESC-Codes
- Solarized Farbschema in der TTY setzen
cron
- Security
- cron Cheat Sheet
Desktops
- Desktop starten und aktivieren
- Cinnamon
- GNOME
- KDE
- MATE
- Openbox
- Xfce
diff und patch
- diff
- patch
Hilfe
- Hilfe-Parameter
- /usr/share/doc
- man
- info
journald (Systemd)
- journalctl Cheat Sheet
Kdump
- Troubleshooting
Kernel
Locale
Login-Banner
Logrotate
- Advanced Logrotating
- Troubleshooting
netplan
Prozesse
- ps, pstree
- top/htop
- free
- nice, renice
- kill, killall
- time
- Uptime
RPM
- Umgang mit RPM
- Troubleshooting
RPM-Pakete pflegen
- Build-Maschine bereitstellen
- SPEC-Datei definieren
- RPM erstellen und veröffentlichen
Rsyslog
- Exkurs: logger
- Syslog-Client
- Syslog-Server
- Forwarding und Filtering
- Templates
- Rsyslog-Properties
- Kommandozeilen-Eingaben speichern
- Rsyslog mit MariaDB-Backend
- Troubleshooting
Shell-Commands
- Checksummen prüfen
- Datum, Zeit
- Prozesse, Performance
- System und Umgebung
- Filesystem
- Netz, URIs
- Text-Processing
- Bild-Processing
- Mail-Versand
- QR-Codes auf der Kommandozeile generieren
SSH-Server
- SSH-Server härten
- Benutzerzugriff auf SSH steuern
- SFTP
- Port-Foward-only User
- Performance
- Troubleshooting
strace
Red Hat Subscription Management
- Red Hat Subscription Manager Cheat Sheet
- Troubleshooting
Superuser Access
- sudo
- visudo und /etc/sudoers
- su
- Root-Rechte erteilen
- „sudo -i“ vs. „sudo su“
sysctl
- „all“ vs „default“ in sysctl-Parametern
- Settings, die sofort aktiv werden
- Settings, die erst nach einem Reboot aktiv werden
Systemd
- Systemd User Sessions und Scopes
- systemctl Cheat Sheet
systemd-network
systemd-resolve
systemd-timer
systemd-tmpfiles
Systemd Unit-Files
- Systemd „Service Unit“ Konfigurationsdateien
- Unit File Cheat Sheet
tuned
- tuned Cheat Sheet
- tuned-Profile und ihre Bedeutung
Version-Pinning
- Applikationen pinnen
- CentOS pinnen
- RHEL pinnen
yum und dnf
- yum/dnf Cheat Sheet
- Umgang mit yum/dnf erklärt
- Package Key Rotation
- Kernel-Versionen verwalten
- Version Pinning
- Nur sicherheitskritische Updates
- Automatische Updates
- Downgrade / Undo
- rpmnew- und rpmsave-Dateien
- Repos
- Sonstiges
- yum.log
- Troubleshooting

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