Open Source Admin-Handbuch der Linuxfabrik Logo

Linux (Fokus: RHEL)

  • Das System
  • Disks und Dateisysteme
  • Netzwerk
  • Sicherheit
    • Auditd
    • Crypto-Policies
    • firewalld
    • iptables
    • nftables
    • SELinux
  • 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
  • OAuth vs. OpenID Connect (OIDC) vs. SAML
  • OpenSearch vs. Elasticsearch
  • Passwörter
  • Redfish
  • Reguläre Ausdrücke
  • Repo Server
  • Reverse Proxy
  • Security: Grundlagen
  • Security: CIS
  • Security: Tools
  • SNMP
  • TLS
  • Upstream

Software

  • acme.sh
  • Adminer
  • AIDE
  • Ansible
  • AnyDesk
  • Apache Directory Studio
  • Apache Guacamole
  • Apache httpd
  • Apache Solr
  • Apache Tomcat
  • APT
  • Apt Mirror
  • asciinema
  • Bexio
  • Big Blue Button
  • BIND
  • Bitwarden
  • blocky
  • Citrix Workspace App
  • ClamAV
  • cloud-init
  • Cockpit
  • Collabora
  • Confluence
  • CrowdSec
  • cubeSQL
  • Django
  • Docker
  • duck.sh
  • Duplicati
  • duplicity
  • easy-rsa
  • Fail2ban
  • Flask
  • FortiClient und openfortivpn
  • FPM
  • FreeDOS
  • FreeIPA
  • Firewall Builder
  • GeoIP-Datenbanken
  • Git
  • GitHub
  • GitLab CE
  • Glade
  • Glances
  • GLPI
  • GlusterFS
  • Gluster-Storage bei Laune halten
  • GPG
  • GPT4All
  • Grafana
  • Grassfish
  • Grav
  • Graylog
  • HAProxy
  • Hashicorp Terraform
  • Hashicorp Vagrant
  • HIN-Client
  • H-Net Software
  • Icinga
  • InfluxDB
  • Infomaniak
  • Inxi
  • IPMI
  • IPsec
  • Java
  • Jitsi
  • Kali-Linux
  • Keepalived
  • Keycloak
  • KVM
  • Let’s Encrypt - Certbot
  • LFS - Linux From Scratch
  • LibreNMS
  • LibreOffice
  • llama.cpp
  • Lynis
  • mail
  • MariaDB
  • MariaDB System-Variablen
  • Marp
  • Mastodon
  • Matomo (fka PIWIK)
  • mdadm
  • Mediawiki
  • MediData
  • Metabase
  • Microsoft Active Directory
  • MinIO
  • Mirth Connect
  • MongoDB
  • Moodle
  • Mutt
  • Nano
  • Nessus
  • netdata
  • Nextcloud
  • NFS
  • Nikto
  • Nmap
  • Node.js
  • NodeBB
  • NUT
  • OAuth2-Proxy
  • Open-VM-Tools
  • OpenSearch
  • OpenSSL
  • OpenStack
  • OpenVAS
  • OpenVPN
  • Oracle-Datenbank
  • oscap
  • OSSEC
  • oVirt
  • Pacemaker
  • Pandoc
  • Paperless-ngx
  • PHP
  • Pi-Hole
  • Pico CMS
  • Podman
  • Postfix
  • PostgreSQL
  • PowerShell für Linux
  • PRTG
  • PXE
  • Python
  • RabbitMQ
  • Rclone
  • React
  • Redis
  • restic
  • rkhunter
  • Rocket.Chat
  • rsync
  • S3
  • Samba-Client
  • Samba-Server
  • Snap
  • Sphinx
  • SQLite
  • Squid
  • SSLlabs.com
  • SSLyze
  • strongSwan
  • stunnel
  • Swift
  • Telnet
  • testssl.sh
  • TFTP
  • tmate
  • Tmux
  • UFW
  • Unbound
  • UptimeRobot
  • Vala
  • Veeam (Agent)
  • Vim
  • VNC
  • vsftpd
  • Wapiti
  • WildFly
  • Wireguard
  • WiX Toolset
  • Wordpress
  • XCA
  • Xen
  • xrdp
  • Zabbix
  • ZAP
  • ZFS

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)

  • The Linuxfabrik Monitoring Plugins Collection
  • Check about-me
  • Check apache-httpd-status
  • Check apache-httpd-version
  • Check apache-solr-version
  • Check axenita-stats
  • Check borgbackup
  • Check by-ssh
  • Check cometsystem
  • Check composer-version
  • Check countdown
  • Check cpu-usage
  • Check crypto-policy
  • Check csv-values
  • Check deb-lastactivity
  • Check dhcp-relayed
  • Check dhcp-scope-usage
  • Check diacos
  • Check disk-io
  • Check disk-smart
  • Check disk-usage
  • Check dmesg
  • Check dns
  • Check docker-info
  • Check docker-stats
  • Check dummy
  • Check fail2ban
  • Check fedora-version
  • Check feed
  • Check file-age
  • Check file-count
  • Check file-descriptors
  • Check file-ownership
  • Check file-size
  • Check fortios-cpu-usage
  • Check fortios-firewall-stats
  • Check fortios-ha-stats
  • Check fortios-memory-usage
  • Check fortios-network-io
  • Check fortios-sensor
  • Check fortios-version
  • Check fs-inodes
  • Check fs-ro
  • Check fs-xfs-stats
  • Check getent
  • Check githubstatus
  • Check gitlab-health
  • Check gitlab-liveness
  • Check gitlab-readiness
  • Check gitlab-version
  • Check grafana-version
  • Check grassfish-licenses
  • Check grassfish-players
  • Check grassfish-screens
  • Check graylog-version
  • Check haproxy-status
  • Check hin-status
  • Check huawei-dorado-backup-power
  • Check huawei-dorado-controller
  • Check huawei-dorado-disk
  • Check huawei-dorado-enclosure
  • Check huawei-dorado-fan
  • Check huawei-dorado-host
  • Check huawei-dorado-hypermetrodomain
  • Check huawei-dorado-hypermetropair
  • Check huawei-dorado-interface
  • Check huawei-dorado-power
  • Check huawei-dorado-system
  • Check icinga-topflap-services
  • Check infomaniak-events
  • Check infomaniak-swiss-backup-devices
  • Check infomaniak-swiss-backup-products
  • Check ipmi-sel
  • Check ipmi-sensor
  • Check jitsi-videobridge-stats
  • Check jitsi-videobridge-status
  • Check journald-query
  • Check journald-usage
  • Check json-values
  • Check kemp-services
  • Check keycloak-memory-usage
  • Check keycloak-stats
  • Check keycloak-version
  • Check kubectl-get-pods
  • Check kvm-vm
  • Check librenms-alerts
  • Check librenms-health
  • Check librenms-version
  • Check load
  • Check logfile
  • Check mailq
  • Check mastodon-version
  • Check matomo-reporting
  • Check matomo-version
  • Check mediawiki-version
  • Check memory-usage
  • Check metabase-stats
  • Check mod-qos-stats
  • Check moodle-version
  • Check mydumper-version
  • Check mysql-aria
  • Check mysql-binlog-cache
  • Check mysql-connections
  • Check mysql-database-metrics
  • Check mysql-innodb-buffer-pool-instances
  • Check mysql-innodb-buffer-pool-size
  • Check mysql-innodb-log-waits
  • Check mysql-joins
  • Check mysql-logfile
  • Check mysql-memory
  • Check mysql-open-files
  • Check mysql-perf-metrics
  • Check mysql-query
  • Check mysql-replica-status
  • Check mysql-slow-queries
  • Check mysql-sorts
  • Check mysql-storage-engines
  • Check mysql-system
  • Check mysql-table-cache
  • Check mysql-table-definition-cache
  • Check mysql-table-indexes
  • Check mysql-table-locks
  • Check mysql-temp-tables
  • Check mysql-thread-cache
  • Check mysql-traffic
  • Check mysql-user-security
  • Check mysql-version
  • Check needs-restarting
  • Check network-bonding
  • Check network-connections
  • Check network-io
  • Check network-port-tcp
  • Check nextcloud-security-scan
  • Check nextcloud-stats
  • Check nextcloud-version
  • Check nginx-status
  • Check nodebb-cache
  • Check nodebb-database
  • Check nodebb-errors
  • Check nodebb-events
  • Check nodebb-groups
  • Check nodebb-info
  • Check nodebb-users
  • Check nodebb-version
  • Check ntp-chronyd
  • Check ntp-ntpd
  • Check ntp-systemd-timesyncd
  • Check ntp-w32tm
  • Check onlyoffice-stats
  • Check openjdk-redhat-version
  • Check openstack-nova-list
  • Check openstack-swift-stat
  • Check openvpn-client-list
  • Check openvpn-version
  • Check path-rw-test
  • Check php-fpm-ping
  • Check php-fpm-status
  • Check php-status
  • Check php-version
  • Check ping
  • Check pip-updates
  • Check postfix-version
  • Check postgresql-version
  • Check procs
  • Check python-version
  • Check qts-cpu-usage
  • Check qts-disk-smart
  • Check qts-memory-usage
  • Check qts-temperatures
  • Check qts-uptime
  • Check qts-version
  • Check redfish-drives
  • Check redfish-sel
  • Check redfish-sensor
  • Check redis-status
  • Check redis-version
  • Check restic-check
  • Check restic-snapshots
  • Check restic-stats
  • Check rhel-version
  • Check rocketchat-stats
  • Check rocketchat-version
  • Check rpm-lastactivity
  • Check safenet-hsm-state
  • Check sap-open-concur-com
  • Check scanrootkit
  • Check scheduled-task
  • Check selinux-mode
  • Check sensors-battery
  • Check sensors-fans
  • Check sensors-temperatures
  • Check service
  • Check snmp
  • Check starface-account-stats
  • Check starface-backup-status
  • Check starface-channel-status
  • Check starface-database-stats
  • Check starface-java-memory-usage
  • Check starface-peer-stats
  • Check starface-status
  • Check statusiq
  • Check statuspal
  • Check strongswan-connection
  • Check swap-usage
  • Check systemd-timedate-status
  • Check systemd-unit
  • Check systemd-units-failed
  • Check tuned-profile
  • Check updates
  • Check uptime
  • Check uptimerobot
  • Check users
  • Check veeam-status
  • Check whmcs-status
  • Check wildfly-deployment-status
  • Check wildfly-gc-status
  • Check wildfly-memory-pool-usage
  • Check wildfly-memory-usage
  • Check wildfly-non-xa-datasource-stats
  • Check wildfly-server-status
  • Check wildfly-thread-usage
  • Check wildfly-uptime
  • Check wildfly-xa-datasource-stats
  • Check wordpress-version
  • Check xca-cert
  • Check xml

LFOps (Github)

  • LFOps - Ansible Collection of Roles, Playbooks and Plugins for managing Linux-based Cloud Infrastructures
  • Ansible Role acme_sh
  • Ansible Role alternatives
  • 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 icinga_kubernetes
  • Ansible Role icinga_kubernetes_web
  • 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_proxysql
  • 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 squid
  • 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>
  • Sicherheit

Sicherheit

  • Auditd
  • Crypto-Policies
    • Crypto-Policies im Vergleich
    • Crypto-Policy setzen
    • Crypto-Policy anpassen
  • firewalld
    • Umgang mit firewalld
    • Logging
  • iptables
    • iptables Standard-Regelwerk erklärt
    • Umgang mit iptables
    • Logging
    • Blockieren von länderbasierten IP-Bereichen mit GeoIP und iptables
  • nftables
    • Debugging
    • nftables Cheat Sheet
  • SELinux
    • Funktionsweise
    • Dateien und Verzeichnisse
    • Prozesse
    • SELinux-Booleans
    • SELinux Audit-Log
    • Beispiel 1: Apache „Permission Denied“
    • Beispiel 2: Apache mit neuer DocumentRoot
    • Beispiel 3: Apache darf kein Mail senden
    • Beispiel 4: Apache und entfernte MariaDB
    • Beispiel 5: Apache auf einem anderen Port lauschen lassen
    • Beispiel 6: Apache „permissive“ laufen lassen
    • Beispiel 7: Eigenes SELinux Module Package bauen
    • Beispiel 8: Eigene Module Packages verteilen
    • Beispiel 9: Temporär dontaudit deaktivieren
    • Troubleshooting
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