Impossible de se connecter à [Connexion refusée] zabbix Solved

Question

Hello,
I am doing an internship and my tutor asked me to install and understand Zabbix. The only problem is that some hosts become available and others show the message Cannot connect to [ ] [Connection refused]

If someone could help me, please

Thank you in advance

Configuration: Windows XP Internet Explorer 6.0

landros · Accepted Answer

YESSSSSSSSS, that was it!!

now both are working and therefore, my PC has IP: 10.150.36.44

my file "zabbix_agent.conf":

# This is config file for zabbix_agent
# To get more information about ZABBIX,
# go https://www.zabbix.com/

# IP address of ZABBIX server
# Connections from other hosts will be denied

#Server=10.150.36.44
Server=127.0.0.1

# Spend no more than Timeout seconds on processing
# Must be between 1 and 30

Timeout=3

####### USER-DEFINED MONITORED PARAMETERS #######
# Format: UserParameter=<key>,<shell command>
# Note that shell command must not return empty string or EOL only
#UserParameter=system.test,who|wc -l
### Set of parameter for monitoring MySQL server (v3.23.42 and later)
### Change -u<username> and add -p<password> if required
#UserParameter=mysql.ping,mysqladmin -uroot ping|grep alive|wc -l
#UserParameter=mysql.uptime,mysqladmin -uroot status|cut -f2 -d":"|cut -f1 -d"T"
#UserParameter=mysql.threads,mysqladmin -uroot status|cut -f3 -d":"|cut -f1 -d"Q"
#UserParameter=mysql.questions,mysqladmin -uroot status|cut -f4 -d":"|cut -f1 -d"S"
#UserParameter=mysql.slowqueries,mysqladmin -uroot status|cut -f5 -d":"|cut -f1 -d"O"
#UserParameter=mysql.qps,mysqladmin -uroot status|cut -f9 -d":"
#UserParameter=mysql.version,mysql -V

my file "zabbix_agentd.conf":

# This is config file for zabbix_agentd
# To get more information about ZABBIX, go https://www.zabbix.com/

############ GENERAL PARAMETERS #################

# List of comma delimited IP addresses (or hostnames) of ZABBIX servers.
# No spaces allowed. First entry is used for sending active checks.
# Note that hostnames must resolve hostname->IP address and
# IP address->hostname.

Server=127.0.0.1

# Server port for sending active checks

#ServerPort=10051
ServerPort=10051

# Unique hostname. Required for active checks.

Hostname=localhost

# Listen port. Default is 10050

#ListenPort=10050
ListenPort=10050

# IP address to bind agent
# If missing, bind to all available IPs

#ListenIP=127.0.0.1
ListenIP=127.0.0.1

# Number of pre-forked instances of zabbix_agentd.
# Default value is 5
# This parameter must be between 1 and 16

StartAgents=5

# How often refresh list of active checks. 2 minutes by default. in seconds

RefreshActiveChecks=10

# Disable active checks. The agent will work in passive mode listening server.

#DisableActive=1

# Enable remote commands for ZABBIX agent. By default remote commands disabled.

#EnableRemoteCommands=1

# Specifies debug level
# 0 - debug is not created
# 1 - critical information
# 2 - error information
# 3 - warnings (default)
# 4 - for debugging (produces lots of information)

DebugLevel=4

# Name of PID file

PidFile=/var/run/zabbix-agent/zabbix_agentd.pid

# Name of log file.
# If not set, syslog will be used

LogFile=/var/log/zabbix-agent/zabbix_agentd.log

# Spend no more than Timeout seconds on processing
# Must be between 1 and 30

Timeout=3

####### USER-DEFINED MONITORED PARAMETERS #######
# Format: UserParameter=<key>,<shell command>
# Note that shell command must not return empty string or EOL only
#UserParameter=system.test,who|wc -l
### Set of parameter for monitoring MySQL server (v3.23.42 and later)
### Change -u<username> and add -p<password> if required
#UserParameter=mysql.ping,mysqladmin -uroot ping|grep alive|wc -l
#UserParameter=mysql.uptime,mysqladmin -uroot status|cut -f2 -d":"|cut -f1 -d"T"
#UserParameter=mysql.threads,mysqladmin -uroot status|cut -f3 -d":"|cut -f1 -d"Q"
#UserParameter=mysql.questions,mysqladmin -uroot status|cut -f4 -d":"|cut -f1 -d"S"
#UserParameter=mysql.slowqueries,mysqladmin -uroot status|cut -f5 -d":"|cut -f1 -d"O"
#UserParameter=mysql.qps,mysqladmin -uroot status|cut -f9 -d":"
#UserParameter=mysql.version,mysql -V

my file "zabbix_server.conf":

# This is config file for ZABBIX server process
# To get more information about ZABBIX,
# go https://www.zabbix.com/

############ GENERAL PARAMETERS #################

# This defines which server this is.
# Default value 1
# This parameter must be between 1 and 255
Server=1

# Number of pre-forked instances of pollers
# Default value is 6
# This parameter must be between 5 and 255
StartPollers=6

# Number of pre-forked instances of trappers
# Default value is 5
# This parameter must be between 2 and 255
StartTrappers=5

# Listen interface for trapper. Trapper will listen all network interfaces
# if this parameter is missing.
#ListenIP=127.0.0.1

# Listen port for trapping. Default port number is 10051. This parameter
# must be between 1024 and 32767

ListenPort=10051

# How often ZABBIX will perform housekeeping procedure
# (in hours)
# Default value is 1 hour
# Housekeeping is removing unnecessary information from
# tables history, alert, and alarms
# This parameter must be between 1 and 24

HousekeepingFrequency=1

# How often ZABBIX will try to send unsent alerts
# (in seconds)
# Default value is 30 seconds
SenderFrequency=30

# Uncomment this line to disable housekeeping procedure

#DisableHousekeeping=1

# Specifies debug level
# 0 - debug is not created
# 1 - critical information
# 2 - error information
# 3 - warnings (default)
# 4 - for debugging (produces lots of information)

DebugLevel=3

# Specifies how long we wait for agent (in sec)
# Must be between 1 and 30
Timeout=5

# After how many seconds of unavailability treat a host as unavailable
UnavailablePeriod=20

# Name of PID file

PidFile=/var/run/zabbix-server/zabbix_server.pid

# Name of log file
# If not set, syslog is used

LogFile=/var/log/zabbix-server/zabbix_server.log

#Location for custom alert scripts
AlertScriptsPath=/usr/local/sbin/

#Location of 'fping. Default is /usr/sbin/fping
FpingLocation=/usr/bin/fping

# Frequency of ICMP pings. Default is 30 seconds.
#PingerFrequency=30

# Database host name
# Default is localhost

DBHost=

# Database name

DBName=zabbix

# Database user

DBUser=zabbix

# Database password
# Comment this line if no password used

DBPassword=toto

# Connect to MySQL using Unix socket?

#DBSocket=/tmp/mysql.sock

with

/etc/init.d/zabbix-server restart
and
/etc/init.d/zabbix-agent restart

in a terminal to restart everything and take the new configuration into account.

Note that if I put back the address: 10.150.36.44 in the config, the error "Connection reset by peer." comes back
so that's why I left it in the files but commented out, so that everyone can see the mistake not to make.

I hope this will help as many people as possible. Bye

santiago69 · Answer

Hi naby007,
Can you rewrite the message using only words from the dictionary?
What do you mean, for example, by:
"some hosts make themselves available and others"

--

There are 10 types of people in the world:
Those who understand binary and others.

naby007 · Answer

I'm sorry

I've been using Zabbix for 2 weeks now, but the problem is that on the map I created, all the connections are off. Moreover, when I check the hosts, some are available while others are not, and there are two error messages:

Cannot connect to [] [Interrupted system call]
Cannot connect to [Connection refused]

If you could help me, thank you very much.

landros · Answer

Hello, I just finished configuring Zabbix, and we can try to help each other. (I spent two weeks on it too).

Actually, when I create a 'switch' host, it is 'available', but when I have, for example, the local host, it tells me:

Cannot connect to [localhost] [Connection refused]

So it's true that the problem is only half solved; it works for the switch.

landros · Answer

On this page: https://www.zabbix.com/forum/zabbix-troubleshooting-and-problems/4163-cannot-connect-to-connection-refused?t=4037

they discuss the files
- zabbix_agent.conf
- zabbix_agentd.conf

In them, you need to place the server PC's IP address in the corresponding field.

But for me, I don't get any results (unless I restart the service afterwards, but I don't want to break what's working for the switches).

landros · Answer

I want to add that I tested all of this only on a local machine.

So for remote machines in the agent and agentd configuration,
I assume you would need to put the IP address of the remote server PC (10.150.36.44 for example) instead of 127.0.0.1,

and allow the corresponding type of connection with iptables or another tool like that.

But I haven't tested it.

Good luck.

Hashka · Answer

Hello,

I just installed Zabbix as well, and I have the same error as you; however, mine is not on a monitored PC or server by an agent.
It's the Zabbix server supervision that is sending me this.
Basically, it can't monitor itself.

Thank you in advance for your responses.

Impossible de se connecter à [Connexion refusée] zabbix

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