Perfect
http://10.147.42.36/icingaweb2/setup
#0 /usr/share/icingaweb2/library/vendor/Zend/Form.php(2280): Icinga\Web\Form\Element\CsrfCounterMeasure->isValid('341152815|56d5c...', Array) 
#1 /usr/share/php/Icinga/Web/Form.php(1276): Zend_Form->isValid(Array) 
#2 /usr/share/php/Icinga/Web/Wizard.php(279): Icinga\Web\Form->isValid(Array) 
#3 /usr/share/icingaweb2/modules/setup/application/controllers/IndexController.php(44): Icinga\Web\Wizard->handleRequest() 
#4 /usr/share/icingaweb2/library/vendor/Zend/Controller/Action.php(507): Icinga\Module\Setup\Controllers\IndexController->indexAction() 
#5 /usr/share/php/Icinga/Web/Controller/Dispatcher.php(76): Zend_Controller_Action->dispatch('indexAction') 
#6 /usr/share/icingaweb2/library/vendor/Zend/Controller/Front.php(937): Icinga\Web\Controller\Dispatcher->dispatch(Object(Icinga\Web\Request), Object(Icinga\Web\Response)) 
#7 /usr/share/php/Icinga/Application/Web.php(389): Zend_Controller_Front->dispatch(Object(Icinga\Web\Request), Object(Icinga\Web\Response)) 
#8 /usr/share/php/Icinga/Application/webrouter.php(109): Icinga\Application\Web->dispatch() 
#9 /usr/share/icingaweb2/public/index.php(4): require_once('/usr/share/php/...') 
#10 {main}
SOLVED: i just had to restart the Browser ;-)
Quellen/Source
- Icingaweb2 Fatal Error directly after installation on Ubuntu 18.04 #3459
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| cd /etc/icinga2/conf.d/ systemctl restart icinga2.service  | 
host.conf | object Host "Lapi" { address = "10.147.42.7" check_command = "hostalive" }  | 
| cd /usr/share/icingaweb2/modules | ||
| systemctl status icinga2.service | 
Quellen/source:
- freenode - Icinga Channel
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- How to Install Icinga 2 and Icinga Web 2 on Debian 9.3
- How to Install Icinga 2 Monitoring Tool on Debian 9.2
- How to add remote Linux and Windows Host to Icinga 2 for Monitoring
- (2015) Cisco Switch mit Icinga 2 und check_nwc_health mittels SNMPv3 abfragen
- (2017) Grafana Module
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- Icinga 2 und ein Client Node
- Youtube | icinga - netways
- Icinga Web 2 Modules
- Youtube | Incga2 Proxmox
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icinga2: Can't send external Icinga command to the local command file "/var/run/icinga2/cmd/icinga2.cmd": Permission denied.
Solved with:
# icinga2 feature enable command
# service icinga2 restart
# service icinga2 status
Install Graphite - | - Debian 9 Stretch for Icingaweb2
#  icinga2 --v = installed with icinga2 (version: r2.6.0-1) /(version: r2.9.1-1) 
| --- | |||
| 20.2 | Change sources.list | #  vi /etc/apt/sources.list deb http://httpredir.debian.org/debian jessie main # apt update -y  | 
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| 20.3 | # apt install -y graphite-web graphite-carbon mysql-server python-mysqldb python-pymysql apache2 libapache2-mod-wsgi apt-transport-https ssl-cert python-pip | ||
| # icinga2 feature enable perfdata graphite | |||
| # systemctl restart icinga2.service | |||
| 20.4 | config | # vi /etc/graphite/local_settings.py | SECRET_KEY   TIME_ZONE Europe/Zurich ALLOWED_HOSTS  | 
| 20.5 | config default/graphite-carbon | # vi /etc/default/graphite-carbon | set true | 
| 20.6 | install django | # pip install "django==1.4" | |
| 20.7 | #  graphite-manage syncdb  # chown _graphite. /var/lib/graphite/graphite.db  | 
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| 20.8 | Apache config | #  a2dissite 000-default.conf  # cp /usr/share/graphite-web/apache2-graphite.conf /etc/apache2/sites-available/ # a2ensite apache2-graphite.conf # systemctl restart apache2  | 
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| icinga Module | # cd /usr/share/icingaweb2/modules  # git clone https://github.com/findmypast/icingaweb2-module-graphite graphite  | 
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| # mv icingaweb2-module-graphite graphite | |||
| 20.x | #  icinga2 feature list  # icinga2 feature enable graphite  | 
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| 20.x | # vi /etc/icinga2/features-enabled/graphite.conf | library "perfdata" object GraphiteWriter "graphite" { host = "10.147.42.36" port = 2003 enable_send_thresholds = true }  | 
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| 20.x | GUI enable | (Configuration > Modules > graphite > enable) | |
| 20.x | Restart | #  systemctl restart apache2 icinga2  # systemctl status apache2 icinga2  | 
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| Icinga Gui | Icinga Gui --> Configuration --> Modules  select graphite and then configuration  | 
graphite web url differs from http://graphite.com/render/? or if your graphite prefix differs from "icinga" please create a config file in /etc/icingaweb2/modules/graphite/config.ini following this example: | |
| vi /etc/icingaweb2/modules/graphite/config.ini | |||
| copy paste the text from the Gui | |||
| change the IP to your Server |  [graphite] base_url = http://10.147.42.36/render?  | 
Quelle/Source:
- Web freenode IRC #graphite
- (2017) Icingaweb2 Graphite Modul
- (2017) Revisited – Graphite-Web installation unter Debian 9
- https://github.com/Icinga/icingaweb2-module-graphite/issues
- (2015) Graphite für Icinga2 und Icingaweb2 installieren
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