Proyectos Beta: Instalar Nagios en Debian Squeeze/Wheezy

Vamos a instalar Nagios3 en Debian Squeeze/Wheezy.
OBS: Se tiene que tener instalado:

apache2
libapache2-mod-php5
build-essential

Entramos a la consola y escribimos:


aptitude install nagios3

Una vez descargado todo nos preguntara una contraseña de administración de nagios la cual colocamos a nuestro gusto y listo ya lo tenemos instalado. Luego de haber instalado todo, solo nos queda revisar que todo se encuentre bien.
Entramos en la consola y escribimos:


nagios3 -v /etc/nagios3/nagios.cfg

Esto nos saldrá algo similar a lo siguiente:

Nagios Core 3.2.3

Copyright (c) 2009-2010 Nagios Core Development Team and Community Contributors

Copyright (c) 1999-2009 Ethan Galstad

Last Modified: 10-03-2010

License: GPL



Website: http://www.nagios.org

Reading configuration data...

     Read main config file okay...

Processing object config file '/etc/nagios3/commands.cfg'...

Processing object config directory '/etc/nagios-plugins/config'...

Processing object config file '/etc/nagios-plugins/config/mailq.cfg'...

Processing object config file '/etc/nagios-plugins/config/fping.cfg'...

Processing object config file '/etc/nagios-plugins/config/real.cfg'...

Processing object config file '/etc/nagios-plugins/config/load.cfg'...

Processing object config file '/etc/nagios-plugins/config/flexlm.cfg'...

Processing object config file '/etc/nagios-plugins/config/ftp.cfg'...

Processing object config file '/etc/nagios-plugins/config/radius.cfg'...

Processing object config file '/etc/nagios-plugins/config/mrtg.cfg'...

Processing object config file '/etc/nagios-plugins/config/http.cfg'...

Processing object config file '/etc/nagios-plugins/config/dummy.cfg'...

Processing object config file '/etc/nagios-plugins/config/dhcp.cfg'...

Processing object config file '/etc/nagios-plugins/config/rpc-nfs.cfg'...

Processing object config file '/etc/nagios-plugins/config/news.cfg'...

Processing object config file '/etc/nagios-plugins/config/ifstatus.cfg'...

Processing object config file '/etc/nagios-plugins/config/breeze.cfg'...

Processing object config file '/etc/nagios-plugins/config/netware.cfg'...

Processing object config file '/etc/nagios-plugins/config/apt.cfg'...

Processing object config file '/etc/nagios-plugins/config/pgsql.cfg'...

Processing object config file '/etc/nagios-plugins/config/tcp_udp.cfg'...

Processing object config file '/etc/nagios-plugins/config/ntp.cfg'...

Processing object config file '/etc/nagios-plugins/config/snmp.cfg'...

Processing object config file '/etc/nagios-plugins/config/hppjd.cfg'...

Processing object config file '/etc/nagios-plugins/config/ldap.cfg'...

Processing object config file '/etc/nagios-plugins/config/mail.cfg'...

Processing object config file '/etc/nagios-plugins/config/disk.cfg'...

Processing object config file '/etc/nagios-plugins/config/ssh.cfg'...

Processing object config file '/etc/nagios-plugins/config/telnet.cfg'...

Processing object config file '/etc/nagios-plugins/config/disk-smb.cfg'...

Processing object config file '/etc/nagios-plugins/config/games.cfg'...

Processing object config file '/etc/nagios-plugins/config/users.cfg'...

Processing object config file '/etc/nagios-plugins/config/dns.cfg'...

Processing object config file '/etc/nagios-plugins/config/procs.cfg'...

Processing object config file '/etc/nagios-plugins/config/mysql.cfg'...

Processing object config file '/etc/nagios-plugins/config/ping.cfg'...

Processing object config file '/etc/nagios-plugins/config/nt.cfg'...

Processing object config directory '/etc/nagios3/conf.d'...

Processing object config file '/etc/nagios3/conf.d/generic-host_nagios2.cfg'...

Processing object config file '/etc/nagios3/conf.d/generic-service_nagios2.cfg'...

Processing object config file '/etc/nagios3/conf.d/extinfo_nagios2.cfg'...

Processing object config file '/etc/nagios3/conf.d/timeperiods_nagios2.cfg'...

Processing object config file '/etc/nagios3/conf.d/services_nagios2.cfg'...

Processing object config file '/etc/nagios3/conf.d/localhost_nagios2.cfg'...

Processing object config file '/etc/nagios3/conf.d/hostgroups_nagios2.cfg'...

Processing object config file '/etc/nagios3/conf.d/contacts_nagios2.cfg'...

     Read object config files okay...



Running pre-flight check on configuration data...

Checking services...

Checked 6 services.

Checking hosts...

Checked 1 hosts.


Checking host groups...

Checked 4 host groups.

Checking service groups...

Checked 0 service groups.

Checking contacts...

Checked 1 contacts.

Checking contact groups...


Checked 1 contact groups.

Checking service escalations...

Checked 0 service escalations.

Checking service dependencies...


Checked 0 service dependencies.

Checking host escalations...

Checked 0 host escalations.

Checking host dependencies...

Checked 0 host dependencies.

Checking commands...

Checked 153 commands.

Checking time periods...

Checked 4 time periods.

Checking for circular paths between hosts...

Checking for circular host and service dependencies...

Checking global event handlers...

Checking obsessive compulsive processor commands...

Checking misc settings...



Total Warnings: 0

Total Errors:   0



Things look okay - No serious problems were detected during the pre-flight check

Si no nos sale ningún error damos por hecho que ya tenemos Nagios corriendo y funcionando.
Ahora elegimos nuestro navegador favorito y escribimos http://localhost/nagios3
usuario: nagiosadmin
password: que colocamos al momento de instarlo.

Y esta imagen aparecera en nuestro navegador.