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Install Nagios 4.0.4 on Centos 7

21 de janeiro de 2016 Nenhum comentário

For RHEL/CentOS users:

#yum install -y wget httpd php gcc glibc glibc-common gd gd-devel make net-snmp
#yum install   httpd php  gd gd-devel gcc glibc glibc-common openssl perl perl-devel makesasa

Download Nagios Core and Nagios Plugins Tarballs
For all systems, run the following commands in your terminal:

cd /tmp
#wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-4.0.4.tar.gz
#wget http://nagios-plugins.org/download/nagios-plugins-2.0.tar.gz

This will download Nagios Core, and it’s required plugins.
Adding the Nagios User and Group
Next add the appropriate user and group for the Nagios process to run:

#useradd nagios
#groupadd nagcmd
#usermod -a -G nagcmd nagios

Nagios Core Installatiom

#tar zxvf nagios-4.0.4.tar.gz
#tar zxvf nagios-plugins-2.0.tar.gz

Change to the new Nagios directory and install the packages:

#cd nagios-4.0.4
#./configure --with-command-group=nagcmd
#make all
#make install
#make install-init
#make install-config
#make install-commandmode
#make install-webconf
#cp -R contrib/eventhandlers/ /usr/local/nagios/libexec/
#chown -R nagios:nagios /usr/local/nagios/libexec/eventhandlers
#/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
#/etc/init.d/nagios start

For RHEL/CentOS users:

#/etc/init.d/httpd start
#systemctl start httpd

Create a Default User for Web Access.
Add a default user for Web Interface Access:

#htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin

Nagios Plugin Installation

#cd /tmp/nagios-plugins-2.0
#./configure --with-nagios-user=nagios --with-nagios-group=nagios
#make
#make install

Nagios Service Setup
The following commands will register the Nagios daemon to be run upon system startup.

chkconfig --add nagios
chkconfig --level 35 nagios on
chkconfig --add httpd
chkconfig --level 35 httpd on

Nagios Web Interface
After correctly following the procedures you should now
be able to access your Nagios Core installation from a
web browser.
Simply use the following:
http://<your.nagios.server.ip>/nagios
And log in with the credentials you chose when adding
the nagiosadmin user to the htpasswd.users file.
Finishing

CentOS 7, Linux, Monitoring, Splunk

Como instalar Splunk 6.3.2 no CentOS Minimal 7.0

10 de janeiro de 2016 Nenhum comentário

Olá amigos, segue um guia de como realizar a instação do Splunk

Efetuar o dowload do pacote de instalação.

#yum update
#yum install wget – Instalação do Wget

#wget http://download.splunk.com/products/splunk/releases/6.3.2/splunk/linux/splunk-6.3.2-aaff59bb082c.i386.rpm

Realizar a instalação do pacote .rpm.

#rpm -Uvh “pacote””splunk-6.3.2-aaff59bb082c.i386.rpm”

Instalando componentes

#yum -y install glibc.i686

Liberando portas no Firewall

Liberar porta web tcp 8000, syslog na udp 5514
#firewall-cmd –zone=public –permanent –add-port=8000/tcp
#firewall-cmd –zone=public –permanent –add-port=5514/udp

Forward syslog input to high port for non-root, allow port 80 for http

#firewall-cmd –direct –permanent –add-rule ipv4 nat PREROUTING 0 -p udp -m udp \–dport 514 -j REDIRECT –to-ports 5514
#firewall-cmd –direct –permanent –add-rule ipv4 nat PREROUTING 0 -p tcp -m tcp \–dport 80 -j REDIRECT –to-ports 8000

Reiniciar o firewall
#firewall-cmd –reload

Acessar o Diretorio de inicialização dentro do Splunk /opt/splunk/bin
#./splunk start –accept-license “Iniciar o Splunk e aceitar todos os termos”
#./splunk enable boot-start ” Colocar o Splunk na inicialização”.

O Splunk pode ser acessado através da URL http://ipserver:8000/