====== Frequently Asked Questions ======

----

===== How to change the default password =====
 

  - Go to the Centreon web interface. Select Configuration >Users> nagiosadmin then you can change the password 
  - Launch this command on the FAN server :
<code>htpasswd -c /etc/nagios/htpasswd.users nagiosadmin</code>
and define the new password



===== I don't receive mail notifications =====

Check your Postfix configuation in the [[http://fannagioscd.sourceforge.net/drupal/?q=node/10|documentation]]



===== How to up to date FAN ? =====

With this command 
<code>yum update</code>

===== How to use Nagios, Centreon, Nareto, Nagvis ? =====

FAN is just a linux distribution which provides monitoring tools. The documentation of thoses tools is provide by the developpers and the community of each tool.
  * http://www.nagios.org/docs/
  * http://en.doc.centreon.com/Main_Page
  * http://www.nareto.org/?a=doc
  * http://www.nagvis.org/documentation

===== I found a bug, where should I report it ? =====

You can file a bug in the [[https://sourceforge.net/tracker/?func=browse&group_id=220110&atid=1051366|FAN bug tracking system]].

===== It doesn't work, what do I do ? =====

You have already read the documentations, search all Google results and it still doesn't work ? You can ask a question on the [[https://sourceforge.net/forum/forum.php?forum_id=793280|forum]] ([[http://www.catb.org/~esr/faqs/smart-questions.html|How to ask the smart way]])
	

===== How to make Nagvis working with Nagios collectors ? =====

The default configuration of Nagvis is set to work only with the central Nagios. 
You have to add a new backend for each Nagios collector. The "dbinstancename" option of /etc/nagios/nagvis.ini.php is corresponding to the "instance_name" option of /etc/nagios/ndomod.cfg. 

Example of new backend in nagvis.ini.php :

<code>[backend_ndomy_2]                         <---------------------- Backend name
; type of backend - MUST be set
;backendtype="ndomy"
; hostname for NDO-db
;dbhost="localhost"
; portname for NDO-db
;dbport=3306
; database-name for NDO-db
dbname="nagios"
; username for NDO-db
;dbuser="root"
; password for NDO-db
dbpass=""
; prefix for tables in NDO-db
;dbprefix="nagios_"
; instace-name for tables in NDO-db
dbinstancename="Nagios2"                         <--------------------- Instance name
; maximum delay of the NDO Database in Seconds
;maxtimewithoutupdate=180
; path to the cgi-bin of this backend
;htmlcgi="/nagios/cgi-bin" </code>




