- CACHE:
/opt/omd/sites/site1/tmp/check_mk/cache
- Kết quả lưu trữ các lượt Check trong ngày:
/opt/omd/sites/site1/var/nagios/nagios.log
- Cấu hình lưu log cho Nagios:
/opt/omd/sites/site1/etc/nagios/nagios.d/logging.cfg
Toàn bộ file có nội dung như sau:
# OMD default settings.
# Please do not change settings here. Copy the variables
# you want to override to ../nagios.cfg and edit them there.
# Settings in nagios.cfg have always precedence.
# Log and debug configuration
# LOG ROTATION METHOD
# This is the log rotation method that Nagios should use to rotate
# the main log file. Values are as follows..
# n = None - don't rotate the log
# h = Hourly rotation (top of the hour)
# d = Daily rotation (midnight every day)
# w = Weekly rotation (midnight on Saturday evening)
# m = Monthly rotation (midnight last day of month)
log_rotation_method=d
# LOGGING OPTIONS
# If you want messages logged to the syslog facility, as well as the
# Nagios log file set this option to 1. If not, set it to 0.
use_syslog=0
# NOTIFICATION LOGGING OPTION
# If you don't want notifications to be logged, set this value to 0.
# If notifications should be logged, set the value to 1.
log_notifications=1
# SERVICE RETRY LOGGING OPTION
# If you don't want service check retries to be logged, set this value
# to 0. If retries should be logged, set the value to 1.
log_service_retries=1
# HOST RETRY LOGGING OPTION
# If you don't want host check retries to be logged, set this value to
# 0. If retries should be logged, set the value to 1.
log_host_retries=1
# EVENT HANDLER LOGGING OPTION
# If you don't want host and service event handlers to be logged, set
# this value to 0. If event handlers should be logged, set the value
# to 1.
log_event_handlers=1
# INITIAL STATES LOGGING OPTION
# If you want Nagios to log all initial host and service states to
# the main log file (the first time the service or host is checked)
# you can enable this option by setting this value to 1. If you
# are not using an external application that does long term state
# statistics reporting, you do not need to enable this option. In
# this case, set the value to 0.
log_initial_states=1
# EXTERNAL COMMANDS LOGGING OPTION
# If you don't want Nagios to log external commands, set this value
# to 0. If external commands should be logged, set this value to 1.
# Note: This option does not include logging of passive service
# checks - see the option below for controlling whether or not
# passive checks are logged.
log_external_commands=0
# PASSIVE CHECKS LOGGING OPTION
# If you don't want Nagios to log passive host and service checks, set
# this value to 0. If passive checks should be logged, set
# this value to 1.
log_passive_checks=0
# DEBUG LEVEL
# This option determines how much (if any) debugging information will
# be written to the debug file. OR values together to log multiple
# types of information.
# Values:
# -1 = Everything
# 0 = Nothing
# 1 = Functions
# 2 = Configuration
# 4 = Process information
# 8 = Scheduled events
# 16 = Host/service checks
# 32 = Notifications
# 64 = Event broker
# 128 = External commands
# 256 = Commands
# 512 = Scheduled downtime
# 1024 = Comments
# 2048 = Macros
debug_level=0
# DEBUG VERBOSITY
# This option determines how verbose the debug log out will be.
# Values: 0 = Brief output
# 1 = More detailed
# 2 = Very detailed
debug_verbosity=0
# MAX DEBUG FILE SIZE
# This option determines the maximum size (in bytes) of the debug file. If
# the file grows larger than this size, it will be renamed with a .old
# extension. If a file already exists with a .old extension it will
# automatically be deleted. This helps ensure your disk space usage doesn't
# get out of control when debugging Nagios.
max_debug_file_size=1000000
# DAEMON CORE DUMP OPTION
# This option determines whether or not Nagios is allowed to create
# a core dump when it runs as a daemon. Note that it is generally
# considered bad form to allow this, but it may be useful for
# debugging purposes. Enabling this option doesn't guarantee that
# a core file will be produced, but that's just life...
# Values: 1 - Allow core dumps
# 0 - Do not allow core dumps (default)
daemon_dumps_core=0
- Lưu trữ:
/opt/omd/sites/site1/var/nagios/archive
Views > Others > Host and Service Events
Ví dụ, xem lại kết quả ngày 20/9/2017
WATO > Host & Service Parameters > Monitoring Configuration > Inventory and Check_MK settings > Periodic service discovery
WAYS TO CALL:
cmk [-n] [-v] [-p] HOST [IPADDRESS] check all services on HOST
cmk -I [HOST ..] inventory - find new services
cmk -II ... renew inventory, drop old services
cmk -N [HOSTS...] output Nagios configuration
cmk -B create configuration for core
cmk -C, --compile precompile host checks
cmk -U, --update precompile + create config for core
cmk -O, --reload precompile + config + core reload
cmk -R, --restart precompile + config + core restart
cmk -D, --dump [H1 H2 ..] dump all or some hosts
cmk -d HOSTNAME|IPADDRESS show raw information from agent
cmk --check-discovery HOSTNAME check for items not yet checked
cmk --discover-marked-hosts run discovery for hosts known to have changed services
cmk --update-dns-cache update IP address lookup cache
cmk -l, --list-hosts [G1 G2 ...] print list of all hosts
cmk --list-tag TAG1 TAG2 ... list hosts having certain tags
cmk -L, --list-checks list all available check types
cmk -M, --man [CHECKTYPE] show manpage for check CHECKTYPE
cmk -m, --browse-man open interactive manpage browser
cmk --paths list all pathnames and directories
cmk -X, --check-config check configuration for invalid vars
cmk --backup BACKUPFILE.tar.gz make backup of configuration and data
cmk --restore BACKUPFILE.tar.gz restore configuration and data
cmk --flush [HOST1 HOST2...] flush all data of some or all hosts
cmk --donate Email data of configured hosts to MK
cmk --snmpwalk HOST1 HOST2 ... Do snmpwalk on one or more hosts
cmk --snmptranslate HOST Do snmptranslate on walk
cmk --snmpget OID HOST1 HOST2 ... Fetch single OIDs and output them
cmk --scan-parents [HOST1 HOST2...] autoscan parents, create conf.d/parents.mk
cmk -P, --package COMMAND do package operations
cmk --localize COMMAND do localization operations
cmk --notify used to send notifications from core
cmk --create-rrd [--keepalive|SPEC] create round robin database (only CEE)
cmk --convert-rrds [--split] [H...] convert exiting RRD to new format (only CEE)
cmk --compress-history FILES... optimize monitoring history files for CMC
cmk --handle-alerts alert handling, always in keepalive mode (only CEE)
cmk --real-time-checks process real time check results (only CEE)
cmk -i, --inventory [HOST1 HOST2...] Do a HW/SW-Inventory of some ar all hosts
cmk --inventory-as-check HOST Do HW/SW-Inventory, behave like check plugin
cmk -A, --bake-agents [-f] [H1 H2..] Bake agents for hosts (not in all versions)
cmk --cap pack|unpack|list FILE.cap Pack/unpack agent packages (not in all versions)
cmk --show-snmp-stats Analyzes recorded Inline SNMP statistics
cmk -V, --version print version
cmk -h, --help print this help
OPTIONS:
-v show what's going on
-p also show performance data (use with -v)
-n do not submit results to core, do not save counters
-c FILE read config file FILE instead of /omd/sites/site1/etc/check_mk/main.mk
--cache read info from cache file is present and fresh, use TCP
only, if cache file is absent or too old
--no-cache never use cached information
--no-tcp for -I: only use cache files. Skip hosts without
cache files.
--fake-dns IP fake IP addresses of all hosts to be IP. This
prevents DNS lookups.
--usewalk use snmpwalk stored with --snmpwalk
--debug never catch Python exceptions
--interactive Some errors are only reported in interactive mode, i.e. if stdout
is a TTY. This option forces interactive mode even if the output
is directed into a pipe or file.
--procs N start up to N processes in parallel during --scan-parents
--checks A,.. restrict checks/inventory to specified checks (tcp/snmp/check type)
--keepalive used by Check_MK Mirco Core: run check and --notify
in continous mode. Read data from stdin and from cmd line.
--cmc-file=X relative filename for CMC config file (used by -B/-U)
--extraoid A Do --snmpwalk also on this OID, in addition to mib-2 and enterprises.
You can specify this option multiple times.
--oid A Do --snmpwalk on this OID instead of mib-2 and enterprises.
You can specify this option multiple times.
--hw-changes=S --inventory-as-check: Use monitoring state S for HW changes
--sw-changes=S --inventory-as-check: Use monitoring state S for SW changes
--inv-fail-status=S Use monitoring state S in case if error during inventory
NOTES:
-I can be restricted to certain check types. Write '--checks df -I' if you
just want to look for new filesystems. Use 'check_mk -L' for a list
of all check types. Use 'tcp' for all TCP based checks and 'snmp' for
all SNMP based checks.
-II does the same as -I but deletes all existing checks of the
specified types and hosts.
-N outputs the Nagios configuration. You may optionally add a list
of hosts. In that case the configuration is generated only for
that hosts (useful for debugging).
-U redirects both the output of -S and -H to the file /omd/sites/site1/var/check_mk/precompiled
and also calls check_mk -C.
-D, --dump dumps out the complete configuration and information
about one, several or all hosts. It shows all services, hostgroups,
contacts and other information about that host.
-d does not work on clusters (such defined in main.mk) but only on
real hosts.
--check-discovery make check_mk behave as monitoring plugins that
checks if an inventory would find new or vanished services for the host.
If configured to do so, this will queue those hosts for automatic
discover-marked-hosts
--discover-marked-hosts run actual service discovery on all hosts that
are known to have new/vanished services due to an earlier run of
check-discovery. The results of this discovery may be activated
automatically if that was discovered.
--list-hosts called without argument lists all hosts. You may
specify one or more host groups to restrict the output to hosts
that are in at least one of those groups.
--list-tag prints all hosts that have all of the specified tags
at once.
-M, --man shows documentation about a check type. If
/usr/bin/less is available it is used as pager. Exit by pressing
Q. Use -M without an argument to show a list of all manual pages.
--backup saves all configuration and runtime data to a gzip
compressed tar file. --restore *erases* the current configuration
and data and replaces it with that from the backup file.
--flush deletes all runtime data belonging to a host. This includes
the inventorized checks, the state of performance counters,
cached agent output, and logfiles. Precompiled host checks
are not deleted.
-P, --package brings you into packager mode. Packages are
used to ship inofficial extensions of Check_MK. Call without
arguments for a help on packaging.
--localize brings you into localization mode. You can create
and/or improve the localization of Check_MKs Multisite. Call without
arguments for a help on localization.
--donate is for those who decided to help the Check_MK project
by donating live host data. It tars the cached agent data of
those host which are configured in main.mk:donation_hosts and sends
them via email to [email protected]. The host data
is then publicly available for others and can be used for setting
up demo sites, implementing checks and so on.
Do this only with test data from test hosts - not with productive
data! By donating real-live host data you help others trying out
Check_MK and developing checks by donating hosts. This is completely
voluntary and turned off by default.
--snmpwalk does a complete snmpwalk for the specified hosts both
on the standard MIB and the enterprises MIB and stores the
result in the directory /omd/sites/site1/var/check_mk/snmpwalks. Use the option --oid one or several
times in order to specify alternative OIDs to walk. You need to
specify numeric OIDs. If you want to keep the two standard OIDS
.1.3.6.1.2.1 and .1.3.6.1.4.1 then use --extraoid for just adding
additional OIDs to walk.
--snmptranslate does not contact the host again, but reuses the hosts
walk from the directory /omd/sites/site1/var/check_mk/snmpwalks.
You can add further MIBs to /omd/sites/site1/local/share/check_mk/mibs
--scan-parents uses traceroute in order to automatically detect
hosts's parents. It creates the file conf.d/parents.mk which
defines gateway hosts and parent declarations.
-A, --bake-agents creates RPM/DEB/MSI packages with host-specific
monitoring agents. If you add the option -f, --force then all
agents are renewed, even if an uptodate version for a configuration
already exists. Note: baking agents is only contained in the
subscription version of Check_MK.
--show-snmp-stats analyzes and shows a summary of the Inline SNMP
statistics which might have been recorded on your system before.
Note: This is only contained in the subscription version of Check_MK.
--convert-rrds converts the internal structure of existing RRDs
to the new structure as configured via the rulesets cmc_host_rrd_config
and cmc_service_rrd_config. If you do not specify hosts, then all
RRDs will be converted. Conversion just takes place if the configuration
of the RRDs has changed. The option --split will activate conversion
from exising RRDs in PNP storage type SINGLE to MULTIPLE.
-i, --inventory does a HW/SW-Inventory for all, one or several
hosts. If you add the option -f, --force then persisted sections
will be used even if they are outdated.
Hiện graph trên master mà không cần đăng nhập vào site slave đối với mô hình distributed khi các site ở trên các node khác nhau.
- Lưu ý : trong bài này thực hiện với mô hình distributed 2 node. Node master (site : 10.10.10.37/master) và node slave (site : 10.10.10.38/slave).
- Chúng ta cấu hình thêm site slave như sau :
-
Ở đây phần
URL prefixchúng ta chỉ để là/<tên site>chứ không điền đầy đủ site. -
Tiếp theo trên Master chúng ta tạo file
/etc/httpd/conf.d/check_mk_proxy.conf.vi /etc/httpd/conf.d/check_mk_proxy.conf
-
Thêm vào nội dung như sau :
<Location /slave> Options +FollowSymLinks RewriteEngine On RewriteRule ^/.+/slave/(.*) http://ip-slave/slave/$1 [P] </Location>
Trong đó :
-
/slave: là /site slave . -
ip-slave/slave: là địa chỉ truy cập của site slave. -
Restart httpd :
systemctl reload httpd
-
Kiểm tra lại kết quả.