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This forum is about how to administer a Centreon Platform: installation, software upgrades, backups or anything else related to platform operations.

  • 1,681 Topics
  • 5,299 Replies
1680 Topics
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crisantobSteward **
asked in Platform
Deleting old emails from the mail queue

Hello team, I need help in clearing the mail queue in one of our Centreon pollers. For some reason we have hundreds of old/stale mails in the queue. I use the command “mailq” to see all these old emails in the queue. I need to clear or delete these old emails from the queue, but I am not sure in which folder or directory to check and clear this...also can please advise the correct comment to delete this? Thank you,Crisanto

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querySteward **
asked in Platform
Can you upgrade from version 2.8.26 to the newest version directly?

Hello,i have a centreon server version 2.8.26, now I want to upgrade to the newest version? Is this directly possible, which instructions should I follow?

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itoussies
Centreonian
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Stéphane
asked in Platform
Monitoring connectors have strange dependencies

Hi,Just upgraded a plateforme to 23.10.14 a few days ago and I noticed all the monitoring connector packs were no more  marked as installed in the manager (although all centreon-pack-* packages are present). This looks like a bug but it’s not the most surprising thing. When I went for reinstall the packs I noticed very strange dependencies, like, for example, when I installed “Generic SNMP” it installed “Mac SNMP” and “FreeBSD SNMP” (at least). If I try then to remove “Mac SNMP” it confirms the dependency:  Same with “FreeBSD SNMP”. What’s the problem? I can perfectly understand how it may exist a dependency on “Generic SNMP” for the Mac and FreeBSD packs, but not the other way around.I guess I should remove the RPM for those packs (I’ll test if I find some time later) but it still doesn’t look right to me.

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JohnSodexisSteward *
asked in Platform
How to cancel downtime

How to remove downtime once set. Suppose if i set a fixed downtime and want to cancel in middle. How should i do it ?

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beugnvSteward *
asked in Platform
broker-stat unknown command error host key verification failed

After upgradind centreon from 21.10 to 22.10.2, I ‘ve got an error in the web interface (and when I execute the command directrly from the server)How can I solve this error?Thanks for your help

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sdouce
sdouceBuilder *
asked in Platform
Volume Traffic calculation for a poller

I imagine this question has been asked before.I am looking to calculate the volume of traffic for a monitoring probe/plugin.The goal is to estimate the cost if my poller were based on Azure to monitor on-site objects.

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derEduSteward *
asked in Platform
Negative ACLs?

Hi! Is there a clever way to negate the ACLs?A little background: We use Centreon as umbrella monitoring for many different applications. As the IT departmentt is quite big, there are several teams with specific focus. The main crew just cannot help with some of the problems as they are too specific, so a team, i e. ERP crew,  needs to react on the Centreon warnings. We actually can add these services to specific host groups or service groups and use ACLs to show the specific teams. So far so good, but they still appear in the views of the main crew. Of course, we can create an ACL for “all others” and present this to the main crew, but we are afraid that someone will add a service to monitor and forget this setting. The monitored host or service will then be simply invisible. A good solution would be a way to negate the ACL, i.e: resource ACL “hostgroup NOT ERP”.  Any suggestions?

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CyrilleSteward *
asked in Platform
Error access-denied

DearI did a fresh VMware 23.04 installation. I have 3 problems with this installation.Error message :Connection-Time : CRITICAL: Cannot connect: Access denied for user 'centreon-engine'@'localhost'proc-rsyslogd : Number of current processes running: 0 proc-postfix : Number of current processes running: 0   Also, during server reboot, wait 30 minutes before data refresh. I think about first error message Centreon also does not want to change the administrator password Thanks to help meJ'ai fait une nouvelle installation VMware 23.04. J'ai 2 porblèmes avec cette installation.Message d'erreur Connection-Time : CRITICAL: Cannot connect: Access denied for user 'centreon-engine'@'localhost'proc-rsyslogd : Number of current processes running: 0 proc-postfix : Number of current processes running: 0 Egalement, lors du redémarrage serveur, il faut attendre 30 minutes avant l'actualisation des donnéesCentreon ne veut pas non plus changer le mot de passe administrateur Merci de votre aide

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louarn
asked in Platform
No mail sent

Hi allNew problem.I installed postfix server on my centreon.The follwing command : [centreon-engine@supervision2 ~]$ echo "Test" | mail -s "Test" louarn@mydomain worksbur I don’t receive any mails from centreon with /usr/bin/mail/ I don’t see any mail sent in /var/log/centegine.log. Any idea ? thanks  

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mathiasSteward **
asked in Platform
api : dependance add syntax

Bonjour, I want to add a dependace with the rest api.It didn t work , i don t know why :centreon -d -u admin -p 'PASSWORDXXX' -o DEP -a ADD -v "postgres_5022;postgres_5022;SERVICE;postgres_5022" with “postgres_5022” an existing service.Do you have an idea?Thanks,Mathias  

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glepinay
asked in Platform
How to enable fpm-status on centreon Centreol Web server

Hi,We use here php-fpm-8.1.25 with Apache Httpd on redhat 8.9.php-fpm is listening on port 9042.I am trying to get this page working : https:/mycentreon.site.ch:9042/fpm-status …. to check some php-fpm status (Like Number of active processes).I added in : /etc/httpd/conf.d/10-centreon.conf :<Location /fpm-status>        Order Allow,Deny        ProxyPass "fcgi://127.0.0.1:9042/fpm-status"        ProxyPassReverse "fcgi://127.0.0.1:9042/fpm-status"        Require all granted    </Location> And in :/etc/php-fpm.d/centreon.confpm.status_path = /fpm-status Of course I reloaded apache and php-fpm … but no way even locally I cannot reach the page : ​​​​​http://127.0.0.1:9042/fpm-statusReports:curl: (56) Recv failure: Connection reset by peer … And I cannot get any logs : neither in apache nor in php-fpm logs files …Any idea ??

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ensenada
ensenadaSteward ***
asked in Platform
POSTFIX, problems using SMTP authenticacion.

Hello,We are using postfix without authenticacion and works correctly, but my company now requires smtp user/password.I have configurated password file in /etc/postfix/sasl_passwd[smtp.domain1.com]:1025 app1@emaildomain.com:passwordWhen i try to send email i got this message on log: to=<destinationmail@emaildomain.com>, relay=none, delay=0.01, delays=0/0/0/0, dsn=5.4.4, status=bounced (Host or domain name not found. Name service error for name=emaildomain.com type=A: Host found but no data record of requested type)emaildomain.com is not a DNS zone and you cant resolve it, but we can use it on this server without smtp authenticacion and in another servers with outlook for example.This is my main.cf: # See /usr/share/postfix/main.cf.dist for a commented, more complete version# Debian specific: Specifying a file name will cause the first# line of that file to be used as the name. The Debian default# is /etc/mailname.#myorigin = /etc/mailnamesmtpd_banner = $myhostname ESMTP $mail_n

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ensenada
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montijanojea
asked in Platform
Centreon HA 4-nodes : PDO object is not initialized, constructor was not called

Hello The Community,After the modification of the configuration files (Installing a Centreon HA 4-nodes cluster | Centreon Documentation), i have this error message :“PDO object is not initialized, constructor was not called” Do you have any idea​​​​​, please ?​    

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Alex.ASteward *
asked in Platform
Upgrade 22.10.10 to 23.10.9 : Unexpected Application Error!

HelloI used different internet browsers and cleared the cache and the error occurs too. My colleagues also have the same problem.I went from a version 22.10.10 to 23.10.9 of Centreon, I now have an error when hovering over the filters / legends in the graph tab.For example I have a "Test" server, I go to the Graph tab and I have two filters, "Running Task" and "Failed Task", I want to filter my results, so I move my mouse and hover over one of the two filters "Running Task" and "Failed Task" then I have the error Unexpected Application Error!Cannot read properties of undefined (reading 'indexOf')TypeError: Cannot read properties of undefined (reading 'indexOf')    at Tt (https://DOMAIN/centreon/static/4178.394a86a6.chunk.js:2:21760)    at $t (https://DOMAIN/centreon/static/4178.394a86a6.chunk.js:2:22191)    at n (https://DOMAIN/centreon/static/4178.394a86a6.chunk.js:2:8599)    at https://DOMAIN/centreon/static/6200.e1725188.chunk.js:1:45719    at https://DOMAIN/centreon/static/6200.e17

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GIPESSteward *
asked in Platform
Centreon V24.04 - Dashboard error Cannot read properties of undefined (reading 'fantasy-land/map')

Hi, I want to test the new dashbord in 24.04.When i go to dashbord, New dashboard / add widget / Widget type I select one widget, I have an error and i can’t continue.Error:Unexpected Application Error!Cannot read properties of undefined (reading 'fantasy-land/map')TypeError: Cannot read properties of undefined (reading 'fantasy-land/map') at http://X.X.X.X/centreon/static/9074.baa2d801.chunk.js:52:79314 at e (http://X.X.X.X/centreon/static/9074.baa2d801.chunk.js:52:78270) at http://X.X.X.X/centreon/static/5935.b18aaaec.chunk.js:29:97445 at e (http://X.X.X.X/centreon/static/9074.baa2d801.chunk.js:52:78270) at http://X.X.X.X/centreon/static/2431.51cb0bc4.chunk.js:1:24168 at http://X.X.X.X/centreon/static/2431.51cb0bc4.chunk.js:1:24195 at Array.map (<anonymous>) at O (http://X.X.X.X/centreon/static/2431.51cb0bc4.chunk.js:1:23963) at xu (http://X.X.X.X/centreon/static/1615.618e4a26.chunk.js:2:62829) at Ei (http://X.X.X.X/centreon/static/1615.618e4a26.ch

40010
rchauvel
Centreonian
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louarn
asked in Platform
Access denied centreon@localhost

Hi all New problem. I have the following error (line 69) sometimes and that must explain why I have un incident on my mysql database.password is set in :/etc/centreon/centreon.conf.php/etc/centreon/conf.pm 240724 9:53:56 11 Query SELECT nagios_server_id, command_file, cfg_dir, centreonbroker_cfg_path, snmp_trapd_path_conf, engine_start_command, engine_stop_command, engine_restart_command, engine_reload_command, broker_reload_command, init_script_centreontrapd FROM cfg_nagios, nagios_server WHERE nagios_server.id = cfg_nagios.nagios_server_id AND cfg_nagios.nagios_activate = '1' 11 Query SELECT `value` FROM options WHERE `key` = 'gorgone_illegal_characters' 66 Connect centreon@localhost on centreon using Socket 66 Query SET NAMES utf8 67 Connect centreon@localhost on centreon using Socket 67 Query SET NAMES utf8 66 Quit 67 Query SELEC

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louarn
asked in Platform
Error parsing cfg file : Service already exists

Hello everyone,I'm going from one problem to another and the latest is when I export my configuration.I have a service which, even if I remove it or rename it in the /var/cache/centreon/config/engine1/serviceTemplates.cfg file, comes back every time. And this duplication blocks the export.I've searched the resource.cfg, and I don't see why this service, the PING, is repeated. Is there a “hard” place where it's written to be parsed afterwards?  define service { name PING check_command OS-Linux-SNMP-Tcpcon!100.0,20%!500.0,60% check_period 24x7 max_check_attempts 3 check_interval 10 retry_interval 2 register 1 use local-service}define service { name Balloning memory check_command OS-Linux-SNMP-Traffic-Name!1!10 check_period 24x7 max_check_att

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lukcSteward *
asked in Platform
How can I exclude ramfs from the Linux SSH Mountpoint service?

I added the OS-Linux-Mountpoint-SSH-custom service template to my Linux hosts, but some give errors because there are ramfs partitions mounted with the ro flag.To avoid these errors I would like to add the ramfs (next to the squashfs and tmpfs) type to the types to exclude in the critical treshold (which by default is '%{options} !~ /^rw/i && %{type} !~ /tmpfs|squashfs/i').How can I do that? Obviously completely ignoring ramfs would also be an option.

481
vcoum
Centreon Lord Commander
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LaurentVSteward ***
asked in Platform
AWS - monitor specific metrics - Cloudwatch

Hello,we try to monitor some specidif custom Cloudwatch metrics with Centreon.Monitor the metrics seems ok but…The only response we have from the command is “ OK: “ without any other details, same with --verbose.How to have details ? the command is:/usr/lib/centreon/plugins/centreon_aws_cloudwatch_api.pl --plugin --custommode='awscli' --mode='get-metrics' --region='eu-central-1' --aws-secret-key='xxxxxxxxxxxxxxxxxxxxxxxxxxxx' --aws-access-key='xxxxxxxxxxxxxxxxx' --namespace='CloudWatchSynthetics' --metric='SuccessPercent' --verbose and the response is:OK: rRegards, Laurent 

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louarn
asked in Platform
No update t web UI

Hi all,New problem with web UI. Manuel check in ok as :[centreon@supervision ~]$ /usr/lib/centreon/plugins/check_nrpe -2 -H 172.16.185.22 -c check_mysql_gpaoDev -t 20Uptime: 311229  Threads: 2  Questions: 8091531  Slow queries: 8  Opens: 324  Flush tables: 2  Open tables: 317  Queries per second avg: 25.998|Connections=5106c;;; Open_files=365;;; Open_tables=317;;; Qcache_free_memory=265505480;;; Qcache_hits=43254c;;; Qcache_inserts=15574c;;; Qcache_lowmem_prunes=0c;;; Qcache_not_cached=1408c;;; Qcache_queries_in_cache=2466;;; Queries=8091532c;;; Questions=8091517c;;; Table_locks_waited=15c;;; Threads_connected=1;;; Threads_running=1;;; Uptime=311229c;;; but in centreon, I have  how to force web ui to update ?Thanks

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louarn
asked in Platform
error on login

Hi all I have the following problem when I want to connect to my centreon  Last thing, i did, update the centreon user in database. And there, i’m connecting with centreon admin user. Where do I have to update centreon password for pdo actions ? thanks

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fschvartzSteward *
asked in Platform
user non admin can add/modify host ?

Hello,We are trying to define acls for multiple teams. Theses teams will work on specific perimeter and we want they access only to their own perimeter. (these teams should access and modify only their assets.) We manage to setup read access on defined hostgroupe but we did non succeed with modification right. The only way we find is to grant them as administrator but these right are to high for themIs it possible to configure acl to allow supervision modification only on defined hostgroup? 

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ruben_mendez
ruben_mendezSteward ***
asked in Platform
REST API v1 host categories don't work

Hi, I’m trying to add a host into “host categories” in my centreon server using Rest API v1, but it seems to not work properly:The commandcurl --silent --location 'http://centreon.local/centreon/api/index.php?action=authenticate' --header 'centreon-auth-token: some_secret' --header 'Content-Type: application/json' --data '{ "object": "HC", "action": "addmember", "values": "mycategorie;my.host.lan"}'The result:400Bad Request → "Bad parameters"But going to the server and executing the command, it works.centreon -u admin -p 'some_secret' -o HC -a addmember -v "mycategorie;my.host.lan"centreon -u admin -p 'some_secret' -o HC -a getmember -v "mycategorie"id;name2787;my.host.lanI’m missing something?https://docs.centreon.com/docs/api/rest-api-v1/#host-categorieshttps://docs.centreon.com/docs/api/clapi/#addmember-and-setmember

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zalediaSteward *
asked in Platform
Centreon Database ssl connection

Hi, We have a distributed centreon 22.10.4 platform.We would like to secure the connections between centreon central (client) and it’s database (mariadb server) by using x509 certificates.We’ve already configured the client.cnf file and the server.cnf file by setting the right path and the right certicate. We have this problem : mariadb sslv3 alert certificate unsuported Do you have any idea about it ? Have you ever tried to secure the connection between centreon central and it’s deported db ? We have x509v3 certificates with the right extension TLS Web Server Authentication for the server and TLS Web Client Authentication for the client. Even if the connection works manually with simple certificates without extensions, centreon shows that : “Access denied for user 'user_'@'HOST' (using password: YES).We would also like to know if centreon handle ssl in the core connection with database ? We’ve seen the db.pm file that does not take into account the eventuality of ssl use. Regards.Seri

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IsraelCalveteSteward *
asked in Platform
Central broker is not running after fresh install.

Hi, I’m newbie with centreon. I have installed centreon 22.10 in a CenOS7 AWS EC2 instance with the automated script withcurl -L -s https://raw.githubusercontent.com/centreon/centreon/22.10.x/centreon/unattended.sh | sh After postinstalation, I went to the GUI and I saw that the central poller was stoped. I have read and follow this and thiswithout success. /var/log/messages seems clean /var/log/centreon-broker/central-broker-master.log contain errors.Error while reading on socket: End of filefeeder 'central-rrd-master-input-1' error:Attempt to read data from peer LOCALHOST:5670 on a closing socketTCP: Connection refused to LOCALHOST:5670 /var/log/centreon-broker/central-rrd-master.log too[root@yig centreon-broker]# cat /var/log/centreon-broker/central-rrd-master.log| grep error[2023-03-03T11:18:27.163+00:00] [tcp] [error] Error while reading on socket: Operation aborted.[2023-03-03T11:18:27.270+00:00] [core] [info] pool: the latency check encountered an error: Operation aborted.[2023

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