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HKU\.Defaultはデフォルトユーザのものではない。

HKU\.DEFAULT(HKEY_USERS\.DEFAULT)は、あちこちで間違った認識をされている。HKU\.DEFAULT(HKEY_USERS\.DEFAULT)は、デフォルトユーザとかテンプレートユーザと呼ばれるアカウント(=今後作成されるユーザアカウントの初期設定)...

2006/03/22

nagiosのインストール

サーバの稼働状況を確認するため, nagiosをインストール.
http://www.nagios.org/

現状では, 新しいバージョンのnagiosは~x86になっているので,
/etc/portage/package.keywordsに
以下を書き込む.
net-analyzer/nagios ~x86
net-analyzer/nagios-core ~x86
net-analyzer/nagios-imagepack ~x86
net-analyzer/nagios-nrpe ~x86
net-analyzer/nagios-nsca ~x86
net-analyzer/nagios-plugins ~x86

その上で,
emerge -uD nagios
を実行. /etc/conf.d/apache2でAPACHE2_OPTSに
-D NAGIOS
を付け加えてApache2を再起動するとNagiosが起動される.
/usr/nagios/sbinと/usr/nagios/libexecに.htaccessでアクセス制限を
かけるのを忘れないように.

/etc/nagiosにいれる設定ファイルはgzip圧縮されて
/usr/share/doc/nagios-core-2.0/sample-configs/
に保存されている.

設定ファイルの例:
********** cgi.cfg **********
main_config_file=/etc/nagios/nagios.cfg
physical_html_path=/usr/nagios/share
url_html_path=/nagios
show_context_help=0
use_authentication=1
authorized_for_system_information=hi-lo
authorized_for_configuration_information=hi-lo
authorized_for_system_commands=hi-lo
authorized_for_all_services=hi-lo
authorized_for_all_hosts=hi-lo
authorized_for_all_service_commands=hi-lo
authorized_for_all_host_commands=hi-lo
default_statusmap_layout=5
default_statuswrl_layout=4
ping_syntax=/bin/ping -n -U -c 5 $HOSTADDRESS$
refresh_rate=90

********** nagios.cfg **********
log_file=/var/nagios/nagios.log
cfg_file=/etc/nagios/checkcommands.cfg
cfg_file=/etc/nagios/misccommands.cfg
cfg_file=/etc/nagios/contacts.cfg
cfg_file=/etc/nagios/hosts.cfg
cfg_file=/etc/nagios/services_abstract.cfg
cfg_file=/etc/nagios/services_host_a.cfg
cfg_file=/etc/nagios/services_host_a.cfg
cfg_file=/etc/nagios/timeperiods.cfg
object_cache_file=/var/nagios/objects.cache
resource_file=/etc/nagios/resource.cfg
status_file=/var/nagios/status.dat
nagios_user=nagios
nagios_group=nagios
check_external_commands=1
command_check_interval=-1
command_file=/var/nagios/rw/nagios.cmd
comment_file=/var/nagios/comments.dat
downtime_file=/var/nagios/downtime.dat
lock_file=/var/nagios/nagios.lock
temp_file=/var/nagios/nagios.tmp
event_broker_options=-1
log_rotation_method=w
log_archive_path=/var/nagios/archives
use_syslog=1
log_notifications=1
log_service_retries=1
log_host_retries=1
log_event_handlers=1
log_initial_states=0
log_external_commands=1
log_passive_checks=1
service_inter_check_delay_method=s
max_service_check_spread=30
service_interleave_factor=s
host_inter_check_delay_method=s
max_host_check_spread=30
max_concurrent_checks=0
service_reaper_frequency=10
auto_reschedule_checks=0
auto_rescheduling_interval=30
auto_rescheduling_window=180
sleep_time=0.25
service_check_timeout=60
host_check_timeout=30
event_handler_timeout=30
notification_timeout=30
ocsp_timeout=5
perfdata_timeout=5
retain_state_information=1
state_retention_file=/var/nagios/retention.dat
retention_update_interval=60
use_retained_program_state=1
use_retained_scheduling_info=0
interval_length=60
use_aggressive_host_checking=0
execute_service_checks=1
accept_passive_service_checks=1
execute_host_checks=1
accept_passive_host_checks=1
enable_notifications=1
enable_event_handlers=1
process_performance_data=0
obsess_over_services=0
check_for_orphaned_services=0
check_service_freshness=1
service_freshness_check_interval=60
check_host_freshness=0
host_freshness_check_interval=60
aggregate_status_updates=1
status_update_interval=15
enable_flap_detection=0
low_service_flap_threshold=5.0
high_service_flap_threshold=20.0
low_host_flap_threshold=5.0
high_host_flap_threshold=20.0
date_format=us
p1_file=/usr/nagios/bin/p1.pl
illegal_object_name_chars=`~!$%^&*|'"<>?,()=
illegal_macro_output_chars=`~$&|'"<>
use_regexp_matching=0
use_true_regexp_matching=0
admin_email=nagios
admin_pager=pagenagios
daemon_dumps_core=0

********** timeperiods.cfg **********
define timeperiod{
  timeperiod_name 24x7
  alias           24 Hours A Day, 7 Days A Week
  sunday          00:00-24:00
  monday          00:00-24:00
  tuesday         00:00-24:00
  wednesday       00:00-24:00
  thursday        00:00-24:00
  friday          00:00-24:00
  saturday        00:00-24:00
  }

********** hosts.cfg **********
define host{
  name                    generic-host
  notifications_enabled           1
  event_handler_enabled           1       ;イベントハンドラの有無
  flap_detection_enabled          1       ;状態反転の検出
  failure_prediction_enabled      1       ; Failure prediction is enabled
  process_perf_data               1       ;パフォーマンス統計
  retain_status_information       1       ;状態情報の保存
  retain_nonstatus_information    1       ; 状態以外の情報の保存
  check_command           check-host-alive
  max_check_attempts      10              ;最大リトライ回数
  notification_interval   120             ;通知間隔
  notification_period     24x7            ;通知時間帯
  notification_options    d,u,r           ;通知オプション
  register                        0       ;このオプションにてtemplateと認識させる
  }

define host{
  use                  generic-host    ;使用するテンプレート名
  host_name            host_a          ;ホスト名
  alias                host_a          ;エイリアス
  address              xxx.xxx.xxx.xxx ;IPアドレス
  contact_groups       admin-contactgroup
  }

define hostgroup{
  hostgroup_name       fk-hostgroup
  alias                fk-hostgroup
  members              host_a
  }

********** contacts.cfg **********
define contact{
  name                            generic-contact
  service_notification_period     24x7
  host_notification_period        24x7
  service_notification_options    w,u,c,r ;Warning Unknown Critical Recover None
  host_notification_options       d,u,r   ;Down Unreachable recover
  service_notification_commands   notify-by-email
  host_notification_commands      host-notify-by-email
  register                        0
  }
define contact{
  use                             generic-contact
  contact_name                    host_a_admin
  alias                           host_a root
  email                           root@xxxx.xxx
  pager                           root@xxxx.xxx
  }
define contactgroup{
  contactgroup_name       admin-contactgroup
  alias                   admin-contactgroup
  members                 host_a_admin
  }

********** nrpe.cfg **********
pid_file=/var/run/nrpe.pid
server_port=5666
nrpe_user=nagios
nrpe_group=nagios
dont_blame_nrpe=1
debug=0
command_timeout=60
command[check_users]=/usr/nagios/libexec/check_users -w $ARG1$ -c $ARG2$
command[check_load]=/usr/nagios/libexec/check_load -w $ARG1$ -c $ARG2$
command[check_disk]=/usr/nagios/libexec/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
command[check_procs]=/usr/nagios/libexec/check_procs -w $ARG1$ -c $ARG2$ -s $ARG3$

********** checkcommands.cfg **********
define command{
  command_name    check_dns
  command_line    $USER1$/check_dns -H www.yahoo.com -s $HOSTADDRESS$
  }
define command{
  command_name    check_ftp
  command_line    $USER1$/check_ftp -H $HOSTADDRESS$
  }
define command{
  command_name    check_http
  command_line    $USER1$/check_http -H $HOSTADDRESS$
  }
define command{
  command_name    check_https
  command_line    $USER1$/check_http -S -H $HOSTADDRESS$
  }
define command{
  command_name    check_local_disk
  command_line    $USER1$/check_disk -w $ARG1$ -c $ARG2$ -p $ARG3$
  }
define command{
  command_name    check_local_load
  command_line    $USER1$/check_load -w $ARG1$ -c $ARG2$
  }
define command{
  command_name    check_local_procs
  command_line    $USER1$/check_procs -w $ARG1$ -c $ARG2$ -s $ARG3$
  }
define command{
  command_name    check_local_users
  command_line    $USER1$/check_users -w $ARG1$ -c $ARG2$
  }
define command{
  command_name    check_nntp
  command_line    $USER1$/check_nntp -H $HOSTADDRESS$
  }
define command{
  command_name    check_ping
  command_line    $USER1$/check_ping -H $HOSTADDRESS$ -w $ARG1$ -c $ARG2$ -p 5
  }
define command{
  command_name    check_pop
  command_line    $USER1$/check_pop -H $HOSTADDRESS$
  }
define command{
  command_name    check_pops
  command_line    $USER1$/check_spop -p 995 -H $HOSTADDRESS$
  }
define command{
  command_name    check_smtp
  command_line    $USER1$/check_smtp -H $HOSTADDRESS$
  }
define command{
  command_name    check_tcp
  command_line    $USER1$/check_tcp -H $HOSTADDRESS$ -p $ARG1$
  }
define command{
  command_name    check_telnet
  command_line    $USER1$/check_tcp -H $HOSTADDRESS$ -p 23
  }
define command{
  command_name    check_ssh
  command_line    $USER1$/check_ssh -H $HOSTADDRESS$
  }
define command{
  command_name    check_udp
  command_line    $USER1$/check_udp -H $HOSTADDRESS$ -p $ARG1$
  }
define command{
  command_name    check_nrpe
  command_line    $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ -a $ARG2$
  }
define command{
  command_name    check-host-alive
  command_line    $USER1$/check_ping -H $HOSTADDRESS$ -w 3000.0,80% -c 5000.0,100% -p 1
  }

********** services_abstract.cfg **********
define service{
  name                         generic-service
  check_period                 24x7
  max_check_attempts           3       ;リトライ回数
  normal_check_interval        10      ;検知間隔
  retry_check_interval         1       ;リトライ間隔
  notification_interval        120     ;通知間隔
  notification_period          24x7
  notification_options         w,u,c,r ;Warning Unknown Critical Recover None
  active_checks_enabled        1       ; Active service checks are enabled
  passive_checks_enabled       1       ; Passive service checks are enabled/accepted
  parallelize_check            1       ; Active service checks should be parallelized (disabling this can lead to major performance problems)
  obsess_over_service          1       ; We should obsess over this service (if necessary)
  check_freshness              0       ; Default is to NOT check service 'freshness'
  notifications_enabled        1       ; Service notifications are enabled
  event_handler_enabled        1       ; Service event handler is enabled
  flap_detection_enabled       1       ; Flap detection is enabled
  process_perf_data            1       ; Process performance data
  retain_status_information    1       ; Retain status information across program restarts
  retain_nonstatus_information 1       ; Retain non-status information across program restarts
  is_volatile                  0
  register                     0
  }
define service{
  use                  generic-service
  name                 generic-http
  service_description  HTTP
  check_command        check_http
  register             0
  }
define service{
  use                  generic-service
  name                 generic-https
  service_description  HTTPS
  check_command        check_https
  register             0
  }
define service{
  use                  generic-service
  name                 generic-ping
  service_description  PING
  check_command        check_ping!100.0,20%!500.0,60%
  register             0
  }
define service{
  use                  generic-service
  name                 generic-smtp
  service_description  SMTP
  check_command        check_smtp
  register             0
  }
define service{
  use                  generic-service
  name                 generic-ftp
  service_description  FTP
  check_command        check_ftp
  register             0
  }
define service{
  use                  generic-service
  name                 generic-pop3
  service_description  POP3
  check_command        check_pop
  register             0
  }
define service{
  use                  generic-service
  name                 generic-pop3s
  service_description  POP3S
  check_command        check_pops
  register             0
  }
define service{
  use                  generic-service
  name                 generic-ssh
  service_description  SSH
  check_command        check_ssh
  register             0
  }
define service{
  use                  generic-service
  name                 generic-dns
  service_description  DNS
  check_command        check_dns
  register             0
  }
define service{
  use                  generic-service
  name                 generic-current_users
  service_description  Current Users
  check_command        check_local_users!75!150
  register             0
  }
define service{
  use                  generic-service
  name                 generic-total_processes
  service_description  Total Processes
  check_command        check_local_procs!170!220!RSZDT
  register             0
  }
define service{
  use                  generic-service
  name                 generic-current_load
  max_check_attempts   4
  normal_check_interval 5
  notification_interval 960
  service_description  Current Load
  check_command        check_local_load!5.0,4.0,3.0!10.0,6.0,4.0
  register             0
  }
define service{
  use                  generic-service
  name                 generic-hdd_free_space
  service_description  /dev/hda1 Free Space
  check_command        check_local_disk!20%!10%!/dev/hda1
  register             0
  }
define service{
  use                  generic-service
  name                 generic-PrinterStatus
  service_description  Printer Status
  check_command        check_hpjd
  register             0
  }
define service{
  use                  generic-service
  name                 generic-current_users-nrpe
  service_description  Current Users
  check_command        check_nrpe!check_users!75 150
  register             0
  }
define service{
  use                  generic-service
  name                 generic-total_processes-nrpe
  service_description  Total Processes
  check_command        check_nrpe!check_procs!150 200 RSZDT
  register             0
  }
define service{
  use                  generic-service
  name                 generic-current_load-nrpe
  service_description  LOAD
  max_check_attempts   4
  normal_check_interval 5
  notification_interval 960
  service_description  Current Load
  check_command        check_nrpe!check_load!5.0,4.0,3.0 10.0,6.0,4.0
  register             0
  }
define service{
  use                  generic-service
  name                 generic-hdd_free_space-nrpe
  service_description  /dev/hda1 Free Space
  check_command        check_nrpe!check_disk!20%!10%!/dev/hda1
  register             0
  }

********** services_host_a.cfg **********
define service{
  use                  generic-smtp
  host_name            host_a
  contact_groups       admin-contactgroup
}
define service{
  use                  generic-http
  host_name            host_a
  contact_groups       admin-contactgroup
}
define service{
  use                  generic-ssh
  host_name            host_a
  contact_groups       admin-contactgroup
}
define service{
  use                  generic-ping
  host_name            host_a
  contact_groups       admin-contactgroup
}
define service{
  use                  generic-current_users-nrpe
  host_name            host_a
  contact_groups       admin-contactgroup
  }
define service{
  use                  generic-total_processes-nrpe
  host_name            host_a
  contact_groups       admin-contactgroup
  }
define service{
  use                  generic-current_load-nrpe
  host_name            host_a
  contact_groups       admin-contactgroup
  }

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