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WWW.YOURCOMPANY.COM
Zabbix 3.0 Training
Certified Specialist
Day 2
The Enterprise class Monitoring Solution for Everyone
WWW.ZABBIX.COM
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Advanced monitoring Visualization
Events andnotifications
Zabbixadministration
AGENDA
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Configuration management
Host maintenance
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CONFIGURATIONMANAGEMENT
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Template_MySQLQueries per second
MySQL_serverQueries per second
Average queries per second forlast 5 minutes exceeds 5000
{MySQL_server:qps.avg(300)}>5000
Average queries per second forlast 5 minutes exceeds 5000
{Template_MySQL:qps.avg(300)}>5000
Graph
LINKING TEMPLATE
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Properties:
Name
Groups
Downstream hosts
Upstream templates
Macros
What is affected
Items
Triggers
Graphs
Applications
Templated screens
Discovery rules
Some item and trigger properties can be overridden!
TEMPLATE PROPERTIES AND CONTENTS
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Change upstream, changes downstream
Multiple templates can be linked to single host
E-mail serverWeb server
Template_MySQL
Template_Apache Template_Postfix
Template_PgSQL
HOW TEMPLATES WORK
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E-mail server 1
E-mail server 2
Template_E-mail server
Template_Apache
Template_PostfixTemplate_PgSQL
E-mail server 3
E-mail server 4
NESTED TEMPLATING
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Visible in the list of hosts (first two levels)
Visible in the list of templates
TEMPLATE LINKAGE
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Create a "Custom Templates" host group
Create a new "Template Basic" template in it
Copy all items and trigger from host to the template
Create three additional hosts for other trainee's Vms
Add them to "Training servers" host group
Link the template to them
PRACTICAL SETUP
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AGENT-LESSCHECKS
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Availability and performance of remote services Syntax
net.tcp.service[service,<ip>,<port>]net.tcp.service.perf[service,<ip>,<port>]
Examples
net.tcp.service[ftp]net.tcp.service[ssh,,1022]net.tcp.service.perf[http,,8080]
SERVICE CHECKS
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Add an additional item in "Template Basic":"HTTP service availability"
Make sure that the item is receiving data and is shown in a human readable format
PRACTICAL SETUP
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ICMPCHECKS
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Uses fping Full path in server configuration file Correct suid/permission settings SELinux can prevent Zabbix from running fping
Uses fping defaults (depends on the platform)
Source IP settings
IPv6 supported by fping6 in most distributions
Supported items
icmpping[<target>,<packets>,<interval>,<size>,<timeout>]
icmppingloss[<target>,<packets>,<interval>,<size>,<timeout>]
icmppingsec[<target>,<packets>,<interval>,<size>,<timeout>,<mode>]
CONFIGURING ICMP CHECKS
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Add simple item in "Template Basic":"ICMP lost packets"
Add:"Ping loss is too high on <host>" trigger
Use 5 as threshold
Make sure that the item receives data
Use the following command to simulate dropped packets and test the trigger (run it once!):
# iptables -A INPUT -m statistic --mode random --probability 0.1 -j DROP
PRACTICAL SETUP
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AGGREGATECHECKS
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No agent is required
Syntaxgroupfunc["Host group","Item key",itemfunc,timeperiod]Functions: grpavg, grpmax, grpmin, grpsumItem functions: avg, count, last, max, min, sum
Examples
grpsum["MySQL Servers","vfs.fs.size[/,total]",last,0]grpavg["MySQL Servers","system.cpu.load[,avg1]",last,0]grpavg["MySQL Servers",mysql.qps,avg,5m]grpavg[["Servers A","Servers B"],system.cpu.load,last,0]
AGGREGATE CHECKS
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Create "Production cluster" dummy host which will represent your "production HA cluster"
Create "Template Aggregate Check" template
Add aggregate item in "Template Aggregate Check":"Average CPU load in cluster" which calculates average CPU load on all systems from "Training servers" host group
Link "Template Aggregate Check" to "Production cluster" host
Make sure that the item receives data
PRACTICAL SETUP
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CALCULATEDCHECKS
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No agent is required Syntax
func(<key>|<hostname:key>,<parameter1>,<parameter2>,...) Examples
100*last("vfs.fs.size[/,free]",0)/last("vfs.fs.size[/,total]",0)
last("net.if.in[eth0,bytes]",0)+last("net.if.out[eth0,bytes]",0)
100*last("net.if.in[eth0,bytes]",0)/(last("net.if.in[eth0,bytes]",0)+last("net.if.out[eth0,bytes]",0))
CALCULATED CHECKS
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Add calculated item in "Template Basic":"Total throughput on eth0" (sum of "Incoming traffic on eth0" and "Outgoing traffic on eth0")
Make sure that the item receives data
PRACTICAL SETUP
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SNMPMONITORING
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Zabbix supports SNMP v 1, 2c and 3
Community, security level and port per item
User macros supported for SNMP community
SNMP polled by Zabbix pollers
Zabbix comes with number of pre-defined templates for SNMP
SNMP MONITORING
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SNMP entries indexed dynamically, text index on another MIB branch Syntax
<data base OID>["index","<index base OID>","<exact match>"]
Example
IF-MIB::ifInOctets[index,IF-MIB::ifDescr,eth0]
DYNAMIC SNMP INDEXES
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Configure SNMP protocol on your VM
Add SNMP interface on the host
Link “Template SNMP Device”
Make sure that the item receives data
PRACTICAL SETUP
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LOG FILEMONITORING
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Examplelog["/var/log/syslog","error"]
LOG FILE ITEM
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Parameter Definition
Type Zabbix agent (active)
Key log[file,<regexp>,<encoding>,<maxlines>,<mode>,<output>]
Value type Log
Update interval
usually 1 sec
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MaxLinesPerSecond – configurable per agent and item
Log rotation support●Different key – logrt● "file" becomes regular expression (not path)●More resource intensive, agent has to re-read directory
contents with each check
Log time format● y, M, d, h, m, s – everything else works as a
placeholder●Numeric values only
ADDITIONAL DETAILS
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Special history view Mark selected/other Hide/Show selected Add multiple log items, sorted by entry data
VIEWING LOG ITEMS
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There is an error in the log:{host:log["/var/log/syslog"].str(ERROR)}=1
There are several errors in the log for last 3 minutes:{host:log["/var/log/syslog",ERROR].count(3m,ERROR,like)}>2
EXAMPLES
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log[file,<regexp>,<encoding>,<maxlines>,<mode>,<output>]
Use output parameter in log and logrt items to extract the desired number
Use Numeric type of information to see graphs and write triggers easily
Example:log[/var/log/syslog,"Total processors activated: ([0-9]+)",,,,\1]
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LOGFILE CONTENT EXTRACTION
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log[/path/to/the/file,large result buffer allocation.*Entries: ([0-9]+),,,,\1] → 5948
log[path,([0-9]+) message ([0-9]+),,,,\1] → 55log[path,([0-9]+) message ([0-9]+),,,,\1 and \2] → 55 and 33log[path,([0-9]+) message ([0-9]+),,,,we got \1 and \2] we →got 55 and 33
EXAMPLES
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Fr Feb 07 2014 11:07:36.6690 */ Thread Id 1400 (GLEWF) large result bufferallocation - /Length: 437136/Entries: 5948/User: AUser/Form:CFG:ServiceLevelAgreement
Logging 55 message 33
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Create errors.log file in /tmp
Add log monitoring item in "Template Basic":
"The errors.log monitoring"
Use "error" string as regular expression for the item
Write "error" strings to the file
Make sure that the item receives data
PRACTICAL SETUP
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INVENTORY
AUTO-COLLECTION
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Item configured to put it data in inventory field
ITEM -> INVENTORY FIELD
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Inventory must be set to automaticConfiguration Hosts <Host>→ →
Use "Administration General Other" to set default host → →inventory mode
HOST INVENTORY MODE
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HOST INVENTORY VIEW
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VISUALISATION
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Multiple items in a single graph
Customised look
Multiple graph typesNormalStackedPieExploded pie
CUSTOM GRAPHS
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Legend, working time, trigger line, percentile lines (left/right)
Automatic,fixed or referencedY axis min/max
Multiple itemson two axis withdifferent colors& draw styles
GRAPH PROPERTIES
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"avg" is the default"max" or "min" in the legend
GRAPH ITEM FUNCTION
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{{HOST.HOST}:ifAlias[1].last(0)}
Similarly to map labels, only avg(), last(), max() and min() functions with seconds as parameter are supported within this macro in graph names. Value mapping is supported as well.
MACROS IN GRAPH NAMES
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MAPS, SCREENS AND SLIDE SHOWS
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Configuration for the entities is available under Monitoring
All users in Zabbix (including non-admin users) can create network maps, screens and slide shows
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SHARING OPTIONS
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Maps, screens and slide shows can be private or public:– public ones can be accessed by all users– private ones can be accessed by its owner (creator) and all users the entity has been shared with– permissions are respected
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Map properties● Name, dimensions● Background image● Icon highlighting● Element marking upon
change● Single problem expanding● Icon label type and location● Icon mapping● Trigger acknowledgment
status displaying● Min trigger severity● URLs
Map elements● Image● Trigger● Host● Host group (or elements)● Map
MAPS
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Different icons for different states
Custom URLs & labels
Drag and drop editing
Icon aligning, macro expanding
Map links with labels and different styles
Macros in labels for elements and links
MAP DETAILS
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ACKNOWLEDGE STATUS
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None Highlight Mark Don't expand All
OK
Disabled
Problem
Recent problem
MAP OPTIONS EFFECT
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Multiple triggers can be attached to a single link
Active trigger with highest severity will determine link style
MAP LINK STATUS INDICATORS
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Regexps matched against specified inventory field
No match – default icon used
ICON MAPPING
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Map hierarchy: submaps
Custom labels showing any useful information:{{HOST.HOST}:system.cpu.load.last(0)} or{Zabbix server:system.cpu.load.last(0)}
Make links same color as background, appear only for problem
Route links by using invisible icons
Use background images
MAP HINTS
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Create a new map
Add all hosts to it
Create links between hosts
Add useful information to a host and link label (CPU load, In/Out traffic)
PRACTICAL SETUP
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Works like a tableDrag and drop editingRefreshes elements in backgroundDynamic screen elementsMany different elements:
Simple, custom and graph prototypesItem valuesMapsActive problemsOther screensCustom URLsOverview page
...more
SCREENS
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Slide showCycles through many screensAny orderingMultiplier refresh in monitoring
SLIDE SHOWS
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EVENTS
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Event sources: Triggers
On trigger status changeDepends on "Multiple PROBLEM events" option
Network discoveryIf service is discovered/lostIf device is discovered/lost
Auto-registrationWhen previously unknown active agent contacts Zabbix server
InternalItem in "not supported" stateLow-level discovery rule in "not supported" stateTrigger in "unknown" state
HOW ARE EVENTS GENERATED?
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Historical viewStatus, duration, action overviewAccess to individual event detailsFilter, export to CSV
HISTORY OF EVENTS
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Source and event detailsAction, command and event history
EVENT DETAILS
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NOTIFICATIONS AND
ESCALATIONS
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Notify usersExecute remote commandsRepeated notifications until problem is resolvedDelayed notifications and remote commandsDifferent messages for acknowledged and unacknowledged problemsEscalations to different user or user groupUnlimited number of escalation stepsProvide information with macros
FUNCTIONALITY
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Ways to send out notifications
Jabber
SMSModem support
Ez-Texting
Custom "alert" scripts
MEDIA TYPES
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One or more user mediaUsually e-mail, phone number or other identifierActive based on severityActive based on time period
USER MEDIA
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Name
Message
Conditions
Operations
TRIGGER ACTIONS
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Flexible conditionsHost, host groupTrigger name, severity or valueApplication, time period
Type of calculation
ACTION CONDITIONS
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Notifications depend on permissions
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Send messageSingle user, groupSingle media, allDefault/custom messageCondition based on acknowledgment
Run remote commandScript on server or agentIPMISSH, telnetGlobal script
ACTION OPERATIONS - TRIGGERS
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Operation
User
User group
Script
Message
Command
Zabbix Server
Remote Agent
IPMI
SSH/Telnet
Global script
Remote host
Remote Agent
Remote host
OPERATIONS
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Use macros to include in notifications:Technical data like last gathered valueHost inventory details
Useful for integration with ticketing systems{TRIGGER.NSEVERITY}; full list in manual
The {ESC.HISTORY} macro includes full escalation history
USING MACROS
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Based on stepsDefault interval can be overridden in operationsIf intervals collide, smallest interval wins
ESCALATIONS
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Immediately e-mail administrator
10 minutes send SMS to admin
15 minutes open report at helpdesk system
30 minutes e-email management
1 hour send SMS to management
2 hours restart Apache
6 hours reboot the server
24 hours power cycle whole server room
ESCALATE IT
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DETECTION OF
MISCONFIGURATION
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Detection of problems in configurationNot supported itemsNot supported low level discovery rulesUnknown triggers
DETECTION OF MISCONFIGURATION
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CUSTOMNOTIFICATIONS
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On Zabbix server side, add new MediaType having type Script
Script must be located in a directory, specified by AlertScriptsPath directive in zabbix_server.conf
Command line parameters can be defined per each script{ALERT.SENDTO} – Send to{ALERT.SUBJECT} – Subject{ALERT.MESSAGE} – Body
Executed by Zabbix server asthe "zabbix" user
CUSTOM MEDIA TYPES
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HOST AND GROUP
LEVEL
MAINTENANCE
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Suppress data collection in the maintenance period by choosing maintenance mode
Suppress notifications during the maintenance period by adding action condition
Visually identified in Status of triggers, maps and dashboard
If problem happens during maintenance, Zabbix starts new escalation after maintenance ends
Maintenance does not stop escalations
MAINTENANCE FUNCTIONALITY
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Periods must match!
MAINTENANCE IN ACTION
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ZABBIX
ADMINISTRATION
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GUIHousekeeperIcons / Images
MacrosValue mappingWorking time
Triggers severities and displaying options
GENERAL CONFIGURATION
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REGULAR EXPRESSION BUILDER
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AUTHENTICATION
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Supported mechanisms:InternalLDAPHTTP: anything supported by Apache
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Major detailsIs online/last accessLogin blocking:
After unsuccessful loginsSuperadmins can unblock
Access details:GUI accessAPI accessDebug modeStatus
USER LIST
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Details:● Alias/username, name,
surname● Password resetting● Group membership● Frontend language and
theme● Auto-login and logout● Refresh● Rows per page● URL after login● Media
Users can set some ofthese in their profiles
USER DETAILS
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USER MEDIA TAB
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User group listShows user countShows individual members
User group propertiesMembersAll access is group based"Special" groups
USER GROUPS
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Permissions can be assigned on user group level only
Three levels:Read-writeRead onlyDeny
PERMISSION ASSIGNING
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Can't revoke access for Super Admins
Read/write overrides read only
PERMISSION SYSTEM
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Available in Status of Triggers Dashboard Maps Overview Events
Redirects stderr
FRONTEND SCRIPTS
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FRONTEND SCRIPTS
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Parameter Definition
NameUnique name of the script (<submenu/submenu.../>script)
Type Script or IPMI command
Execute on Script will be executed on Zabbix server or agent
CommandsAll commands to be executed within the scriptSome macros are supported
User/host group User/host group that the script is available
Required host permission
Permission level for the host group (Read or Write)
Enable confirmation
Display a confirmation message before executing the script
Confirmation text
Custom confirmation text for the confirmation popup
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Filter
AUDIT LOG
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Details for some operations
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Verify message contents
See status and errors
AUDIT ACTIONS
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Amount of items per categoryShould have received data N seconds/minutes ago, but did notPer Proxy and Details view
QUEUE
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QUESTIONS?
The Enterprise class Monitoring Solution for Everyone
WWW.ZABBIX.COM
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TIME FOR A BREAK :)