issue adding template

[killmasta93]

Hi, Currently trying to add the template to one of my hosts but i get this error Discovery rule "vfs.dev.discovery" already exists on "prometheuscasa", inherited from another template.

i believe its because i have the template OS linux by zabbix agent but how can they both be together?

Thank you

[nikimaxim]

Add an alias to zabbix_agentd.conf - Alias=disk.discovery:vfs.dev.discovery Change the key in the template "Template OS Linux Disk Performance" "vfs.dev.discovery" to "disk.discovery"

https://github.com/nikimaxim/zbx-disk-performance/blob/master/img/4.png

[killmasta93]

Thanks for the reply did the following but getting this error

[nikimaxim]

If added an alias to zabbix_agentd.conf - Alias=disk.discovery:vfs.dev.discovery Сhecking the key(bash from the zabbix server) - zabbix_get -s -k "disk.discovery" Out json!

[killmasta93]

Thanks for the reply if i unsertood correctly the Alias=disk.discovery:vfs.dev.discovery on the agent

############ ADVANCED PARAMETERS #################

### Option: Alias
#       Sets an alias for an item key. It can be used to substitute long and complex item key with a smaller and simpler one.
#       Multiple Alias parameters may be present. Multiple parameters with the same Alias key are not allowed.
#       Different Alias keys may reference the same item key.
#       For example, to retrieve the ID of user 'zabbix':
#       Alias=zabbix.userid:vfs.file.regexp[/etc/passwd,^zabbix:.:([0-9]+),,,,\1]
#       Now shorthand key zabbix.userid may be used to retrieve data.
#       Aliases can be used in HostMetadataItem but not in HostnameItem parameters.
#
# Mandatory: no
# Range:
# Default:
Alias=disk.discovery:vfs.dev.discovery

as for the command above on the server only getting this issue but somewhat confused why its asking me to install mysql and pgsql

root@monitor:~# zabbix_get -s -k "disk.discovery"

Command 'zabbix_get' not found, but can be installed with:

apt install zabbix-proxy-mysql  
apt install zabbix-proxy-pgsql  
apt install zabbix-proxy-sqlite3
apt install zabbix-server-mysql 
apt install zabbix-server-pgsql 

[nikimaxim]

sudo apt install zabbix-get

[killmasta93]

thanks for the reply, currently get this issue

apt install zabbix-get
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package zabbix-get

[nikimaxim]

See how to install zabbix-get for your OS version and test the alias "disk.discovery"

[killmasta93]

Thanks for the reply, so i got this

root@prometheus:/etc/zabbix/scripts# zabbix_get -s 192.168.3.160 -k "disk.discovery"
zabbix_get [14142]: Check access restrictions in Zabbix agent configuration

[nikimaxim]

There is no access for this request in zabbix_agent.conf. Server= ServerActive=

[killmasta93]

Hi, this is my config

root@prometheus:~# cat /etc/zabbix/zabbix_agentd.conf
# This is a configuration file for Zabbix agent daemon (Unix)
# To get more information about Zabbix, visit http://www.zabbix.com

############ GENERAL PARAMETERS #################
UserParameter=disk.get[*],/bin/cat /sys/class/block/$1/stat | sed -e 's/^\s*//' -e "s/[[:space:]]\+/ /g"
### Option: PidFile
#   Name of PID file.
#
# Mandatory: no
# Default:
# PidFile=/tmp/zabbix_agentd.pid

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

### Option: LogType
#   Specifies where log messages are written to:
#       system  - syslog
#       file    - file specified with LogFile parameter
#       console - standard output
#
# Mandatory: no
# Default:
# LogType=file

### Option: LogFile
#   Log file name for LogType 'file' parameter.
#
# Mandatory: no
# Default:
# LogFile=

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

### Option: LogFileSize
#   Maximum size of log file in MB.
#   0 - disable automatic log rotation.
#
# Mandatory: no
# Range: 0-1024
# Default:
# LogFileSize=1

LogFileSize=0

### Option: DebugLevel
#   Specifies debug level:
#   0 - basic information about starting and stopping of Zabbix processes
#   1 - critical information
#   2 - error information
#   3 - warnings
#   4 - for debugging (produces lots of information)
#   5 - extended debugging (produces even more information)
#
# Mandatory: no
# Range: 0-5
# Default:
# DebugLevel=3

### Option: SourceIP
#   Source IP address for outgoing connections.
#
# Mandatory: no
# Default:
# SourceIP=

### Option: EnableRemoteCommands
#   Whether remote commands from Zabbix server are allowed.
#   0 - not allowed
#   1 - allowed
#
# Mandatory: no
# Default:
# EnableRemoteCommands=0

### Option: LogRemoteCommands
#   Enable logging of executed shell commands as warnings.
#   0 - disabled
#   1 - enabled
#
# Mandatory: no
# Default:
# LogRemoteCommands=0

##### Passive checks related

### Option: Server
#   List of comma delimited IP addresses (or hostnames) of Zabbix servers.
#   Incoming connections will be accepted only from the hosts listed here.
#   If IPv6 support is enabled then '127.0.0.1', '::127.0.0.1', '::ffff:127.0.0.1' are treated equally.
#
# Mandatory: no
# Default:
# Server=

Server=192.168.3.160

### Option: ListenPort
#   Agent will listen on this port for connections from the server.
#
# Mandatory: no
# Range: 1024-32767
# Default:
# ListenPort=10050

### Option: ListenIP
#   List of comma delimited IP addresses that the agent should listen on.
#   First IP address is sent to Zabbix server if connecting to it to retrieve list of active checks.
#
# Mandatory: no
# Default:
# ListenIP=0.0.0.0

### Option: StartAgents
#   Number of pre-forked instances of zabbix_agentd that process passive checks.
#   If set to 0, disables passive checks and the agent will not listen on any TCP port.
#
# Mandatory: no
# Range: 0-100
# Default:
# StartAgents=3

##### Active checks related

### Option: ServerActive
#   List of comma delimited IP:port (or hostname:port) pairs of Zabbix servers for active checks.
#   If port is not specified, default port is used.
#   IPv6 addresses must be enclosed in square brackets if port for that host is specified.
#   If port is not specified, square brackets for IPv6 addresses are optional.
#   If this parameter is not specified, active checks are disabled.
#   Example: ServerActive=127.0.0.1:20051,zabbix.domain,[::1]:30051,::1,[12fc::1]
#
# Mandatory: no
# Default:
# ServerActive=

ServerActive=192.168.3.160

### Option: Hostname
#   Unique, case sensitive hostname.
#   Required for active checks and must match hostname as configured on the server.
#   Value is acquired from HostnameItem if undefined.
#
# Mandatory: no
# Default:
# Hostname=

Hostname=prometheuscasa

### Option: HostnameItem
#   Item used for generating Hostname if it is undefined. Ignored if Hostname is defined.
#   Does not support UserParameters or aliases.
#
# Mandatory: no
# Default:
# HostnameItem=system.hostname

### Option: HostMetadata
#   Optional parameter that defines host metadata.
#   Host metadata is used at host auto-registration process.
#   An agent will issue an error and not start if the value is over limit of 255 characters.
#   If not defined, value will be acquired from HostMetadataItem.
#
# Mandatory: no
# Range: 0-255 characters
# Default:
# HostMetadata=

### Option: HostMetadataItem
#   Optional parameter that defines an item used for getting host metadata.
#   Host metadata is used at host auto-registration process.
#   During an auto-registration request an agent will log a warning message if
#   the value returned by specified item is over limit of 255 characters.
#   This option is only used when HostMetadata is not defined.
#
# Mandatory: no
# Default:
# HostMetadataItem=

### Option: RefreshActiveChecks
#   How often list of active checks is refreshed, in seconds.
#
# Mandatory: no
# Range: 60-3600
# Default:
# RefreshActiveChecks=120

### Option: BufferSend
#   Do not keep data longer than N seconds in buffer.
#
# Mandatory: no
# Range: 1-3600
# Default:
# BufferSend=5

### Option: BufferSize
#   Maximum number of values in a memory buffer. The agent will send
#   all collected data to Zabbix Server or Proxy if the buffer is full.
#
# Mandatory: no
# Range: 2-65535
# Default:
# BufferSize=100

### Option: MaxLinesPerSecond
#   Maximum number of new lines the agent will send per second to Zabbix Server
#   or Proxy processing 'log' and 'logrt' active checks.
#   The provided value will be overridden by the parameter 'maxlines',
#   provided in 'log' or 'logrt' item keys.
#
# Mandatory: no
# Range: 1-1000
# Default:
# MaxLinesPerSecond=20

############ ADVANCED PARAMETERS #################

### Option: Alias
#   Sets an alias for an item key. It can be used to substitute long and complex item key with a smaller and simpler one.
#   Multiple Alias parameters may be present. Multiple parameters with the same Alias key are not allowed.
#   Different Alias keys may reference the same item key.
#   For example, to retrieve the ID of user 'zabbix':
#   Alias=zabbix.userid:vfs.file.regexp[/etc/passwd,^zabbix:.:([0-9]+),,,,\1]
#   Now shorthand key zabbix.userid may be used to retrieve data.
#   Aliases can be used in HostMetadataItem but not in HostnameItem parameters.
#
# Mandatory: no
# Range:
# Default:
Alias=disk.discovery:vfs.dev.discovery
### Option: Timeout
#   Spend no more than Timeout seconds on processing
#
# Mandatory: no
# Range: 1-30
# Default:
Timeout=30

### Option: AllowRoot
#   Allow the agent to run as 'root'. If disabled and the agent is started by 'root', the agent
#   will try to switch to the user specified by the User configuration option instead.
#   Has no effect if started under a regular user.
#   0 - do not allow
#   1 - allow
#
# Mandatory: no
# Default:
# AllowRoot=0

### Option: User
#   Drop privileges to a specific, existing user on the system.
#   Only has effect if run as 'root' and AllowRoot is disabled.
#
# Mandatory: no
# Default:
# User=zabbix

### Option: Include
#   You may include individual files or all files in a directory in the configuration file.
#   Installing Zabbix will create include directory in /etc/zabbix, unless modified during the compile time.
#
# Mandatory: no
# Default:
# Include=

# Include=/etc/zabbix/zabbix_agentd.userparams.conf
# Include=/etc/zabbix/zabbix_agentd.conf.d/
Include=/etc/zabbix/zabbix_agentd.conf.d/*.conf

####### USER-DEFINED MONITORED PARAMETERS #######

### Option: UnsafeUserParameters
#   Allow all characters to be passed in arguments to user-defined parameters.
#   The following characters are not allowed:
#   \ ' " ` * ? [ ] { } ~ $ ! & ; ( ) < > | # @
#   Additionally, newline characters are not allowed.
#   0 - do not allow
#   1 - allow
#
# Mandatory: no
# Range: 0-1
# Default:
# UnsafeUserParameters=0

### Option: UserParameter
#   User-defined parameter to monitor. There can be several user-defined parameters.
#   Format: UserParameter=<key>,<shell command>
#   See 'zabbix_agentd' directory for examples.
#
# Mandatory: no
# Default:
# UserParameter=

####### LOADABLE MODULES #######

### Option: LoadModulePath
#   Full path to location of agent modules.
#   Default depends on compilation options.
#
# Mandatory: no
# Default:
# LoadModulePath=${libdir}/modules

### Option: LoadModule
#   Module to load at agent startup. Modules are used to extend functionality of the agent.
#   Format: LoadModule=<module.so>
#   The modules must be located in directory specified by LoadModulePath.
#   It is allowed to include multiple LoadModule parameters.
#
# Mandatory: no
# Default:
# LoadModule=

####### TLS-RELATED PARAMETERS #######

### Option: TLSConnect
#   How the agent should connect to server or proxy. Used for active checks.
#   Only one value can be specified:
#       unencrypted - connect without encryption
#       psk         - connect using TLS and a pre-shared key
#       cert        - connect using TLS and a certificate
#
# Mandatory: yes, if TLS certificate or PSK parameters are defined (even for 'unencrypted' connection)
# Default:
# TLSConnect=unencrypted

### Option: TLSAccept
#   What incoming connections to accept.
#   Multiple values can be specified, separated by comma:
#       unencrypted - accept connections without encryption
#       psk         - accept connections secured with TLS and a pre-shared key
#       cert        - accept connections secured with TLS and a certificate
#
# Mandatory: yes, if TLS certificate or PSK parameters are defined (even for 'unencrypted' connection)
# Default:
# TLSAccept=unencrypted

### Option: TLSCAFile
#   Full pathname of a file containing the top-level CA(s) certificates for
#   peer certificate verification.
#
# Mandatory: no
# Default:
# TLSCAFile=

### Option: TLSCRLFile
#   Full pathname of a file containing revoked certificates.
#
# Mandatory: no
# Default:
# TLSCRLFile=

### Option: TLSServerCertIssuer
#      Allowed server certificate issuer.
#
# Mandatory: no
# Default:
# TLSServerCertIssuer=

### Option: TLSServerCertSubject
#      Allowed server certificate subject.
#
# Mandatory: no
# Default:
# TLSServerCertSubject=

### Option: TLSCertFile
#   Full pathname of a file containing the agent certificate or certificate chain.
#
# Mandatory: no
# Default:
# TLSCertFile=

### Option: TLSKeyFile
#   Full pathname of a file containing the agent private key.
#
# Mandatory: no
# Default:
# TLSKeyFile=

### Option: TLSPSKIdentity
#   Unique, case sensitive string used to identify the pre-shared key.
#
# Mandatory: no
# Default:
# TLSPSKIdentity=

### Option: TLSPSKFile
#   Full pathname of a file containing the pre-shared key.
#
# Mandatory: no
# Default:
# TLSPSKFile=

[nikimaxim]

I don't know your network. and I can't tell you what you set up wrong.

[killmasta93]

allright so i changed a few things now im getting this

zabbix_get -s monitor.mydomain.com -k "disk.discovery"
zabbix_get [17839]: Timeout while executing operation

changed the timeout to 30 seconds

also saw this

[nikimaxim]

Did you reload the agent after making changes? (bash): systemctl restart zabbix-agent

Check the output on the host(bash): zabbix_agentd -p | grep disk.discovery

[killmasta93]

Thanks for the reply, correct this is what im getting

root@mail:~# service zabbix-agent restart
root@mail:~#  zabbix_agentd -p | grep disk.discovery
disk.discovery                                [m|ZBX_NOTSUPPORTED] [Unsupported item key.]

[nikimaxim]

Check the zabbix agent configuration Does not see the key

[killmasta93]

Thanks for the reply, on the zabbix agent i added this

############ GENERAL PARAMETERS #################
UserParameter=disk.get[*],/bin/cat /sys/class/block/$1/stat | sed -e 's/^\s*//' -e "s/[[:space:]]\+/ /g"
Alias=disk.discovery:vfs.dev.discovery
### Option: PidFile
#       Name of PID file.
#
# Mandatory: no
# Default:
# PidFile=/tmp/zabbix_agentd.pid

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

and this is the server config

[killmasta93]

so i revered back to how it was originally i removed temporally the template that caused the issue and this is what im getting, so error on unsupported key on the agent host went away but after changing back to the originally post

root@mail:~# zabbix_agentd -p | grep vfs.dev.discovery
root@mail:~# zabbix_get -s monitor.mydomain.com -k "vfs.dev.discovery"
zabbix_get [14537]: Timeout while executing operation

[nikimaxim]

You have some problems getting data from the key. Maybe this is related to the zabbix-agent settings