It is possible to check directory’s existence by specifying a slash at the end of a name, e.g. “$uri/”. If none of the files were found, an internal redirect to the uri specified in the last parameter is made. [http://nginx.org/en/docs/http/ngx_http_core_module.html#try_files]
pi@raspberrypi:~$ lsusb
Bus 001 Device 004: ID 0bda:8179 Realtek Semiconductor Corp.
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
for h in `cat /etc/hosts| grep hadoop|awk '{print $2}'` ; do scp -r /etc/snmp/snmpd.conf $h:/etc/snmp/ ; done
for h in `cat /etc/hosts| grep hadoop|awk '{print $2}'` ; do ssh $h "service snmpd start" ; done
[root@cu2 nagios]# cd nagios-4.1.1/
[root@cu2 nagios-4.1.1]# ./configure --with-command-group=nagcmd
...
Creating sample config files in sample-config/ ...
*** Configuration summary for nagios 4.1.1 08-19-2015 ***:
General Options:
-------------------------
Nagios executable: nagios
Nagios user/group: nagios,nagios
Command user/group: nagios,nagcmd
Event Broker: yes
Install ${prefix}: /usr/local/nagios
Install ${includedir}: /usr/local/nagios/include/nagios
Lock file: ${prefix}/var/nagios.lock
Check result directory: ${prefix}/var/spool/checkresults
Init directory: /etc/rc.d/init.d
Apache conf.d directory: /etc/httpd/conf.d
Mail program: /bin/mail
Host OS: linux-gnu
IOBroker Method: epoll
Web Interface Options:
------------------------
HTML URL: http://localhost/nagios/
CGI URL: http://localhost/nagios/cgi-bin/
Traceroute (used by WAP):
Review the options above for accuracy. If they look okay,
type 'make all' to compile the main program and CGIs.
# 编译
[root@cu2 nagios-4.1.1]# make all
...
*** Compile finished ***
If the main program and CGIs compiled without any errors, you
can continue with installing Nagios as follows (type 'make'
without any arguments for a list of all possible options):
make install
- This installs the main program, CGIs, and HTML files
make install-init
- This installs the init script in /etc/rc.d/init.d
make install-commandmode
- This installs and configures permissions on the
directory for holding the external command file
make install-config
- This installs *SAMPLE* config files in /usr/local/nagios/etc
You'll have to modify these sample files before you can
use Nagios. Read the HTML documentation for more info
on doing this. Pay particular attention to the docs on
object configuration files, as they determine what/how
things get monitored!
make install-webconf
- This installs the Apache config file for the Nagios
web interface
make install-exfoliation
- This installs the Exfoliation theme for the Nagios
web interface
make install-classicui
- This installs the classic theme for the Nagios
web interface
*** Support Notes *******************************************
If you have questions about configuring or running Nagios,
please make sure that you:
- Look at the sample config files
- Read the documentation on the Nagios Library at:
https://library.nagios.com
before you post a question to one of the mailing lists.
Also make sure to include pertinent information that could
help others help you. This might include:
- What version of Nagios you are using
- What version of the plugins you are using
- Relevant snippets from your config files
- Relevant error messages from the Nagios log file
For more information on obtaining support for Nagios, visit:
https://support.nagios.com
*************************************************************
Enjoy.
# 安装
[root@cu2 nagios-4.1.1]# make install
...
*** Main program, CGIs and HTML files installed ***
You can continue with installing Nagios as follows (type 'make'
without any arguments for a list of all possible options):
make install-init
- This installs the init script in /etc/rc.d/init.d
make install-commandmode
- This installs and configures permissions on the
directory for holding the external command file
make install-config
- This installs sample config files in /usr/local/nagios/etc
make[1]: Leaving directory `/data/nagios/nagios-4.1.1'
# 初始化
[root@cu2 nagios-4.1.1]# make install-init
/usr/bin/install -c -m 755 -d -o root -g root /etc/rc.d/init.d
/usr/bin/install -c -m 755 -o root -g root daemon-init /etc/rc.d/init.d/nagios
*** Init script installed ***
# 安装/初始化配置
[root@cu2 nagios-4.1.1]# make install-config
...
*** Config files installed ***
Remember, these are *SAMPLE* config files. You'll need to read
the documentation for more information on how to actually define
services, hosts, etc. to fit your particular needs.
# 修改权限
[root@cu2 nagios-4.1.1]# make install-commandmode
/usr/bin/install -c -m 775 -o nagios -g nagcmd -d /usr/local/nagios/var/rw
chmod g+s /usr/local/nagios/var/rw
*** External command directory configured ***
# 配置
[root@cu2 nagios-4.1.1]# vi /usr/local/nagios/etc/objects/contacts.cfg
...修改define contact定义中的mail为你邮件。
define contact{
contact_name nagiosadmin ; Short name of user
use generic-contact ; Inherit default values from generic-contact template (defined above)
alias Nagios Admin ; Full name of user
email 1234@XXX.cn ; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******
}
# httpd配置
[root@cu2 nagios-4.1.1]# make install-webconf
/usr/bin/install -c -m 644 sample-config/httpd.conf /etc/httpd/conf.d/nagios.conf
*** Nagios/Apache conf file installed ***
# 权限/密码
[root@cu2 nagios-4.1.1]# htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
New password:
Re-type new password:
Adding password for user nagiosadmin
[root@cu-omc1 nagios-4.1.1]# chmod 644 /usr/local/nagios/etc/htpasswd.users
# 重启HTTPD（应该可以不用重启）
[root@cu2 nagios-4.1.1]# service httpd restart
Stopping httpd: [ OK ]
Starting httpd: httpd: Could not reliably determine the server's fully qualified domain name, using 192.168.0.214 for ServerName
[ OK ]
[root@cu2 nagios]# vi etc/nagios.cfg
...添加
cfg_file=/usr/local/nagios/etc/objects/hosts.cfg
cfg_file=/usr/local/nagios/etc/objects/localhost.cfg
cfg_file=/usr/local/nagios/etc/objects/cu3.cfg
[root@cu2 nagios]# vi etc/objects/commands.cfg
...添加
# 'check_nrpe' command definition
define command{
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
[root@cu2 nagios]# vi etc/objects/cu3.cfg
...新增
define host{
use linux-server ; Name of host template to use
; This host definition will inherit all variables that are defined
; in (or inherited by) the linux-server host template definition.
host_name cu3
alias cu3
address 192.168.0.148
}
define service{
use generic-service ; Name of service template to use
host_name cu3
service_description PING
check_command check_ping!100.0,20%!500.0,60%
}
define service{
use generic-service ; Name of service template to use
host_name cu3
service_description Root Partition
check_command check_nrpe!check_hda1
}
define service{
use generic-service ; Name of service template to use
host_name cu3
service_description Current Users
check_command check_nrpe!check_users
}
define service{
use generic-service ; Name of service template to use
host_name cu3
service_description Total Processes
check_command check_nrpe!check_total_procs
}
define service{
use generic-service ; Name of service template to use
host_name cu3
service_description Current Load
check_command check_nrpe!check_load
}
[root@cu2 nagios]# vi etc/objects/hosts.cfg
... 新增
define hostgroup{
hostgroup_name linux-servers ; The name of the hostgroup
alias Linux Servers ; Long name of the group
members localhost,cu3,cu4,cu5,cu1 ; Comma separated list of hosts that belong to this group
}
vi etc/nagios.cfg
... 修改
use_regexp_matching=1
use_true_regexp_matching=1
vi cu.cfg
...
define service{
use generic-service ; Name of service template to use
host_name cu.*
service_description Current Load
check_command check_nrpe!check_load
}
