Corremos Nagios para monitorizar aproximadamente 35 servidores y varios cientos de servicios en nuestro medio. Podemos incluso utilizarlo para supervisar alrededor de 20 sitios web que de acogida y notificarnos cuando los certificados SSL necesidad de ser renovado. Nagios es una solución muy robusta y adaptable, no es la cosa más fácil del mundo para configurar, pero bien vale la pena el esfuerzo.
Desactivar selinux
Adicionar regla en iptables que acepte trafico desde el puerto 80.
Instalamos paquetes requeridos.
Creamos un Usuario Nagios.
Creamos un Grupo Nagios.,
Agregar usuario nagios y el usuario apache al grupo de nagios.
Creamos un Directorio para descargar nagios.
Descargamos Nagios y Archivos Plugins (Revisar la ultima versión) Extraer archivos.
Configurar/Compilar
Crear una cuenta de usuario con interfase Web.
Reiniciar Apache:
Instalar Plugins de Nagios.
Configurar/Compilar
Adicionar arranque automatico de Nagios.
Arranacar Nagios como servicio.
Pruebar la interfaz web desde una máquina con un navegador web, por ejemplo con el FireFox, en la URL digite http:// ip del servidor/nagios Si ya tenemos conexion y podemos navegar por los menús quiere decir que ya está listo para comenzar a configurar su sistema de control de los servicios / hosts en la red. |
He aquí un par de capturas de pantalla de la interfaz web.
Disponibilidad de información en hosts o servicios
+————–————–——+
| INSTALL OS |
+————–————–——+
1.Install CentOS
Select only Server option, witch has already lots of packets also too many
Updates system
# yum -y update rpm
# yum -y -y -v update
(if using proxy check this link)
2.Remove Useless (GUI,Squid,etc…):
# yum -y remove gdm
# yum -y -v remove squid
3. Set to startup in level 3 (cmd line only):
# vim \etc\inittab
4.Disable (know what u need and dont need) startup of useless services:
# chkconfig –level 3 bluetooth off
# chkconfig –list |grep 3:on
5.Disable SELinux (a not simple security system):
# vim /etc/selinux/config
SELINUX=disabled
# reboot
(if u want simple and good security use AppArmor and Fail2Ban)
————————
Install Pre-requisites:
————————
# yum -y install libstdc++-devel gcc-c++
# yum -y install httpd
# yum -y install gd gd-devel
(NOT NEEDED) # yum groupinstall “Development Tools”
# yum -y install kernel-devel
Install SSL and MySQL
# yum -y install openssl-devel perl-DBD-MySQL mysql-server mysql-devel
Installing PHP
# yum -y -v install php php-mysql php-gd php-ldap php-xml
Installing DBI modules
# yum -y install perl-DBI perl-DBD-MySQL
Installing RRDTools (ruby,pango,etc…)
# yum -y install ruby cairo-devel libxml2-devel pango-devel pango libpng-devel freetype freetype-devel libart_lgpl-devel
(Jul-2010, ver 1.4.4)
# wget http://oss.oetiker.ch/rrdtool/pub/rrdtool-1.4.4.tar.gz
# tar -zxvf rrdtool-1.4.4.tar.gz
# cd rrdtool-1.4.4
# ./configure –prefix=/usr/local/rrdtool
# make all
# make install
Installing SNMP
# yum -y install perl-Crypt-DES perl-Digest-SHA1 perl-Digest-HMAC net-snmp-utils
# yum -y install perl-Socket6 perl-IO-Socket-INET6 net-snmp net-snmp-libs php-snmp dmidecode lm_sensors perl-Net-SNMP net-snmp-perl
Other APPs
# yum -y install fping graphviz cpp gcc gcc-c++ libstdc++ glib2-devel
Installation and PEAR configuration
# yum install php-pear
Configuration
Only if you do use a proxy:
# pear config-set http_proxy http://user:pass@domain:port ..
To confirm
# pear config-show
Update Pear package before install
# pear channel-update pear.php.net
pear upgrade-all
+————————————————+
| INSTALL NAGIOS |
+————————————————+
# groupadd nagios
# adduser nagios -g nagios
# passwd nagios
Check if Nagios User is created
# grep nagios /etc/passwd
Add Webserver user (apache) and Nagios user (nagios)
# usermod -G nagios nagios
# usermod -G apache,nagios apache
Check if the users are the members of the group by
# grep nagios /etc/group
# mkdir /usr/local/nagios
# wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.2.3.tar.gz
# tar -zxvf nagios-3.2.3.tar.gz && cd nagios-3.2.3
# ./configure –with-httpd-conf=/etc/httpd/conf.d/ –with-init-dir=/etc/init.d/ –-enable-embedded-perl –-prefix=/usr/local/nagios -–with-cgiurl=/nagios/cgi-bin –-with-htmurl=/nagios/ –-with-nagios-user=nagios –-with-nagios-group=nagios -–with-command-group=nagios -–enable-nanosleep -–enable-event-broker –with-perlcache
*** Important: Copy and Paste will fail on double-dashes so manually fix it.pwd
Help, also to check all parameters and what they do
./configure –help
Test install:
# make test
Troubleshooting:
Any errors be sure to install dependencies, many times I had problem with embedded-perl
All can easly be done using cpan cmd:
http://user:pass@1server:8080
# cpan
Configure CPAN
> o conf init
#> install Test:Simple Test::Long Test::WWW::Mechanize::CGI
In case CPAN is not working:
# wget http://search.cpan.org/CPAN/authors/id/M/MS/MSCHWERN/Test-Simple-0.96.tar.gz
# wget http://search.cpan.org/CPAN/authors/id/R/RG/RGARCIA/Test-LongString-0.14.tar.gz
# wget http://search.cpan.org/CPAN/authors/id/M/MR/MRAMBERG/Test-WWW-Mechanize-CGI-0.1.tar.gz
Path to Perl (only if needed)
For 32bits
export PERL5LIB=/usr/lib/perl5/5.10.0/i386-linux-thread-multi/CORE/libperl.so libperl.so
Finally Install Nagios
# make all && make install && make install-init && make install-commandmode & make install-config
# make install-webconf
# ls -l /usr/local/nagios
You should see six different subdirectories.
drwxrwxr-x 2 nagios nagios DIRs: bin / etc / libexec / sbin / share / var
SETTING UP THE WEBSERVER
Set the password for the Web Access
# htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
You may need to Edit cgi.cfg to allow nagiosadmin user
# vim /usr/local/nagios/etc/cgi.cfg
authorized_for_system_information=nagiosadmin
httpd.conf (Even knowing that make install-webconf copies a file to /etc/httpd/conf.d/nagios.conf
I noticed that it only worked once i fix a slash that was missing in share/
Alias /nagios/ “/usr/local/nagios/share/”
I also prefered to have it all inside the httpd.conf file, my is like this:
ScriptAlias /nagios/cgi-bin “/usr/local/nagios/sbin”
# SSLRequireSSL
Options ExecCGI
AllowOverride None
Order allow,deny
Allow from all
# Order deny,allow
# Deny from all
# Allow from 127.0.0.1
AuthName “Nagios Access”
AuthType Basic
AuthUserFile /usr/local/nagios/etc/htpasswd.users
Require valid-user
Alias /nagios/ “/usr/local/nagios/share/”
# SSLRequireSSL
Options None
AllowOverride None
Order allow,deny
Allow from all
# Order deny,allow
# Deny from all
# Allow from 127.0.0.1
AuthName “Nagios Access”
AuthType Basic
AuthUserFile /usr/local/nagios/etc/htpasswd.users
Require valid-user
Finally Restart Apache and Nagios
# service httpd restart
# service nagios restart
Add both to auto start
# chkconfig –add httpd
# chkconfig –level 35 httpd on
# chkconfig –add nagios
# chkconfig –level 35 nagios on
Try it on your browser:
http:///nagios/
If something goes wrong look into:
/var/logs/httpd/error_log
/usr/local/nagios/etc/htpasswd.users
/usr/local/nagios/etc/cgi.cfg
+————————–+
| INSTALL NAGIOS PLUGINS |
+————————–+
# wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.15.tar.gz
# ./configure –with-openssl=/usr/bin/openssl –enable-perl-modules –prefix=/usr/local/nagios –with-nagios-user=nagios
# make all
# make install
Check if the plugins are here
# ls -l /usr/local/nagios/libexec
Give nagios:nagios and execute permission
# chown nagios:nagios -R /usr/local/nagios/libexec
# chmod +x -R /usr/local/nagios/libexec
+——————————-+
| INSTALL CENTREON WEB INTERFACE |
+——————————-+
Install MySQL & PHP5
# yum -y -v install mysql-server
# yum -y -v install php-date
# yum -y -v install php-gd php-mysql php-snmp php-ldap php5-xmlrpc
(NOT WORKING)# yum -y -v install php-mail php-mail-mime php-net-smtp php-net-socket
# yum -y -v install
Start mysql in safe mode and set password
#service mysqld_safe –skip-grant-tables
Set password
# mysql -u root
mysql> use mysql;
mysql> update user set password=PASSWORD(“password”) where User=’root’;
mysql> flush privileges;
mysql> quit
# service mysqld restart
# chkconfig –add mysqld
# chkconfig –level 3 mysqld on
(Optional) – PhpMySQLAdmin for easy administration of MySQL:
# yum -y -v install phpmyadmin
To access go to:
http://infonagiosdsv/phpMyAdmin
(———PAUSE————)
Install NDOUtils
# wget http://prdownloads.sourceforge.net/sourceforge/nagios/ndoutils-1.4b9.tar.gz
# tar -zxvf ndoutils-1.4b9.tar.gz
#./configure
#make all
#make install
(do not run the script to creat a DB, Centreon will do it)
Install EMAIL:
PostFix OR
# yum -y -v install postfix
SendMail,
# yum -y -v install sendmail
Do a Email Test
# echo “TEST EMAIL” | sendmail -s “testing my first email” youtemail@domain.xxx
Upgrade PEAR
# pear upgrade pear
# pear channel-update pear.php.net
# pear install -o -f –alldeps DB_DataObject DB_DataObject_FormBuilder MDB2 Numbers_Roman
# pear install -o -f –alldeps Numbers_Words HTML_Common HTML_QuickForm2 HTML_QuickForm_advmultiselect HTML_Table Auth_SASL
# pear install -o -f –alldeps HTTP Image_Canvas Image_Color Image_Graph Image_GraphViz Net_Traceroute Net_Ping Validate XML_RPC
# pear install -o -f –alldeps SOAP
Php Requirements
# yum install php-mbstring php-posix
Fix Sudo (comment line Defualt requiretty)
# vim /etc/sudoers
#Default requiretty
:wq!
Get Centreon (at this time latest is 2.1.3 06/11/2009)
# wget http://download.centreon.com/index.php?id=144
# bash install.sh -i -v
All defaults OK, but these:
Where is installed RRD perl modules [RRDs.pm] ?
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/RRDs.pm
Where is PEAR [PEAR.php]
/usr/share/pear/PEAR.php
RRD?
/usr/local/rrdtool/bin/rrdtool
Where is NDO?
/usr/local/nagios/bin/ndomod.o
Start Configuration GUI:
http:///centreon
Recomendations:
If some dependicies is not met just install it and restart httpd
Use the ndo Database with name: nagios
You may need to start NDOUtils
# /usr/local/nagios/bin/ndo2db -c /usr/local/nagios/etc/ndo2db.cfg
Auto START/STOP NDO daemon.
# vim /etc/init.d/nagios
find line bellow start and add:
“if [ $? -eq 0 ]; then…”
/usr/local/nagios/bin/ndo2db -c /usr/local/nagios/etc/ndo2db.cfg
“su – $NagiosUser -c “touch $NagiosVarDir/nagios.log $NagiosRetentionFile…”
find line bellow stop and add:
“killproc_nagios nagios…”
histoy
Be sure to configure your local SNMP community so the
predefined checks will work
# vim /etc/snmp/snmpd.conf
# service snmpd restart
# chkconfig –add snmpd
# chkconfig –level 3 snmpd on
I also noticed an error when running the centreon plugins
ERROR:
Can’t locate Net/SNMP.pm in @INC
SOLUTION:
1) By CPAN (best)
on command line, as root :
[your_host]# perl -MCPAN -e shell
cpan shell — CPAN exploration and modules installation (v1.76)
ReadLine support enabled
cpan> install Net::SNMP
If it’s the first time you run CPAN, it will probably ask you some (simple) questions.
CPAN will also ask you to satisfy some dependencies (Crypt::DES, Digest::MD5, etc..).
2) “By hand”
Get the folowings modules (tar.gz format) on www.cpan.org
- Crypt::DES
- Digest::MD5
- Digest::SHA1
- Digest::HMAC
- Net::SNMP
for each one (you must install Net::SNMP at the end) :
tar zxf .tar.gz
cd
perl Makefile.pl
make test
make install
+—————–+
|INSTALL DOKUWIKI |
+—————–+
Set apache configuration
# vim /etc/httpd/conf.d/dokuwiki.conf
#DOKUWIKI
Alias /wiki “/usr/local/dokuwiki/www”
Options ExecCGI
AllowOverride None
Order allow,deny
Allow from all
# mkdir /usr/local/dokuwiki
# cd /usr/local/dokuwiki
# wget http://www.splitbrain.org/_media/projects/dokuwiki/dokuwiki-2009-02-14b.tgz
# tar -zxvf dokuwiki-2009-02-14b.tgz
# mv dokuwiki-2009-02-14b wwww
# chown apache:root -R /usr/local/dokuwiki/www
# service httpd restart
Browse to:
http:///wiki/install.php
Templates:
Installing templates is simple, just extract the downloaded template archive (
usually a .zip or .tgz file) in the ../lib/tpl/ ),and set the permissions correctly.
Then select the template in the Admin > Config Manager by adjusting the template option.
I recommend a really good template for procedures/documents in my opinion perfect for
nagios called USABLE, check it out at: http://www.dokuwiki.org/template:usable
Will need another plguin to edit sidebar called DisplayWikiPage
# cd /usr/local/dokuwiki/www/lib/plugin
# wget http://cloud.github.com/downloads/tatewake/dokuwiki-plugin-displaywikipage/displaywikipage-stable.tar.gz
Plugins:
Index Menu
http://www.dokuwiki.org/plugin%3Aindexmenu2
Just download and copy it to ../lib/plugins
go to admin > plugins
More interesting plugins
http://www.linux.com/archive/articles/57410
+—————–+
|INSTALL NAGVIS |
+—————–+
Add grpahviz repo
# vim /etc/yum.repos.d/graphviz.repo
[graphviz-stable]
name=Graphviz – RHEL $releasever – $basearch
baseurl=http://www.graphviz.org/pub/graphviz/stable/redhat/el$releasever/$basearch/os/
enabled=1
gpgcheck=0
# yum -y install grpahviz
# yum –enablerepo=graphviz-snapshot update ‘graphviz*’
# wget https://sourceforge.net/projects/nagvis/files/NagVis%201.4%20%28stable%29/NagVis-1.4.4/nagvis-1.4.4.tar.gz/download
# tar -zxvf
# ./install.sh -i ndo2db -u apache -g apache
URL:
http://<SERVER>/nagvis/frontend/nagvis-js/
New installs the user/pass:
nagiosadmin/nagiosadmin
Set the user/name/db where the NDO DB is at inside also dbinstancename (uncomment it):
# vim /usr/local/nagios/share/nagvis/etc/nagvis.ini.php
[backend_ndomy_1]
…
; instance name for tables in NDO-db
dbinstancename=”Central”
If you dont know your dbinstancename take a look in ndomod.cfg, should
be the same name as its set there
# service httpd restart
Then just open your browser in EDIT mode go to:
http://<SERVER>/nagvis/frontend/nagvis-js/
Then just open your browser in USER mode go to:
Otra Posibilidad: Como instalar Nagios Centreon en CentOS 5.5 - 64bits
Tomado de: Instala Nagios en Centos 64 Bits
Tomado de: Instala Nagios en Centos 64 Bits
+————–————–——+
| INSTALL OS |
+————–————–——+
1.Install CentOS
Select only Server option, witch has already lots of packets also too many
Updates system
# yum -y update rpm
# yum -y -y -v update
(if using proxy check this link)
2.Remove Useless (GUI,Squid,etc…):
# yum -y remove gdm
# yum -y -v remove squid
3. Set to startup in level 3 (cmd line only):
# vim \etc\inittab
4.Disable (know what u need and dont need) startup of useless services:
# chkconfig –level 3 bluetooth off
# chkconfig –list |grep 3:on
5.Disable SELinux (a not simple security system):
# vim /etc/selinux/config
SELINUX=disabled
# reboot
(if u want simple and good security use AppArmor and Fail2Ban)
————————
Install Pre-requisites:
————————
# yum -y install libstdc++-devel gcc-c++
# yum -y install httpd
# yum -y install gd gd-devel
(NOT NEEDED) # yum groupinstall “Development Tools”
# yum -y install kernel-devel
Install SSL and MySQL
# yum -y install openssl-devel perl-DBD-MySQL mysql-server mysql-devel
Installing PHP
# yum -y -v install php php-mysql php-gd php-ldap php-xml
Installing DBI modules
# yum -y install perl-DBI perl-DBD-MySQL
Installing RRDTools (ruby,pango,etc…)
# yum -y install ruby cairo-devel libxml2-devel pango-devel pango libpng-devel freetype freetype-devel libart_lgpl-devel
(Jul-2010, ver 1.4.4)
# wget http://oss.oetiker.ch/rrdtool/pub/rrdtool-1.4.4.tar.gz
# tar -zxvf rrdtool-1.4.4.tar.gz
# cd rrdtool-1.4.4
# ./configure –prefix=/usr/local/rrdtool
# make all
# make install
Installing SNMP
# yum -y install perl-Crypt-DES perl-Digest-SHA1 perl-Digest-HMAC net-snmp-utils
# yum -y install perl-Socket6 perl-IO-Socket-INET6 net-snmp net-snmp-libs php-snmp dmidecode lm_sensors perl-Net-SNMP net-snmp-perl
Other APPs
# yum -y install fping graphviz cpp gcc gcc-c++ libstdc++ glib2-devel
Installation and PEAR configuration
# yum install php-pear
Configuration
Only if you do use a proxy:
# pear config-set http_proxy http://user:pass@domain:port ..
To confirm
# pear config-show
Update Pear package before install
# pear channel-update pear.php.net
pear upgrade-all
+————————————————+
| INSTALL NAGIOS |
+————————————————+
# groupadd nagios
# adduser nagios -g nagios
# passwd nagios
Check if Nagios User is created
# grep nagios /etc/passwd
Add Webserver user (apache) and Nagios user (nagios)
# usermod -G nagios nagios
# usermod -G apache,nagios apache
Check if the users are the members of the group by
# grep nagios /etc/group
# mkdir /usr/local/nagios
# wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.2.3.tar.gz
# tar -zxvf nagios-3.2.3.tar.gz && cd nagios-3.2.3
# ./configure –with-httpd-conf=/etc/httpd/conf.d/ –with-init-dir=/etc/init.d/ –-enable-embedded-perl –-prefix=/usr/local/nagios -–with-cgiurl=/nagios/cgi-bin –-with-htmurl=/nagios/ –-with-nagios-user=nagios –-with-nagios-group=nagios -–with-command-group=nagios -–enable-nanosleep -–enable-event-broker –with-perlcache
*** Important: Copy and Paste will fail on double-dashes so manually fix it.pwd
Help, also to check all parameters and what they do
./configure –help
Test install:
# make test
Troubleshooting:
Any errors be sure to install dependencies, many times I had problem with embedded-perl
All can easly be done using cpan cmd:
http://user:pass@1server:8080
# cpan
Configure CPAN
> o conf init
#> install Test:Simple Test::Long Test::WWW::Mechanize::CGI
In case CPAN is not working:
# wget http://search.cpan.org/CPAN/authors/id/M/MS/MSCHWERN/Test-Simple-0.96.tar.gz
# wget http://search.cpan.org/CPAN/authors/id/R/RG/RGARCIA/Test-LongString-0.14.tar.gz
# wget http://search.cpan.org/CPAN/authors/id/M/MR/MRAMBERG/Test-WWW-Mechanize-CGI-0.1.tar.gz
Path to Perl (only if needed)
For 32bits
export PERL5LIB=/usr/lib/perl5/5.10.0/i386-linux-thread-multi/CORE/libperl.so libperl.so
Finally Install Nagios
# make all && make install && make install-init && make install-commandmode & make install-config
# make install-webconf
# ls -l /usr/local/nagios
You should see six different subdirectories.
drwxrwxr-x 2 nagios nagios DIRs: bin / etc / libexec / sbin / share / var
SETTING UP THE WEBSERVER
Set the password for the Web Access
# htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
You may need to Edit cgi.cfg to allow nagiosadmin user
# vim /usr/local/nagios/etc/cgi.cfg
authorized_for_system_information=nagiosadmin
httpd.conf (Even knowing that make install-webconf copies a file to /etc/httpd/conf.d/nagios.conf
I noticed that it only worked once i fix a slash that was missing in share/
Alias /nagios/ “/usr/local/nagios/share/”
I also prefered to have it all inside the httpd.conf file, my is like this:
ScriptAlias /nagios/cgi-bin “/usr/local/nagios/sbin”
# SSLRequireSSL
Options ExecCGI
AllowOverride None
Order allow,deny
Allow from all
# Order deny,allow
# Deny from all
# Allow from 127.0.0.1
AuthName “Nagios Access”
AuthType Basic
AuthUserFile /usr/local/nagios/etc/htpasswd.users
Require valid-user
Alias /nagios/ “/usr/local/nagios/share/”
# SSLRequireSSL
Options None
AllowOverride None
Order allow,deny
Allow from all
# Order deny,allow
# Deny from all
# Allow from 127.0.0.1
AuthName “Nagios Access”
AuthType Basic
AuthUserFile /usr/local/nagios/etc/htpasswd.users
Require valid-user
Finally Restart Apache and Nagios
# service httpd restart
# service nagios restart
Add both to auto start
# chkconfig –add httpd
# chkconfig –level 35 httpd on
# chkconfig –add nagios
# chkconfig –level 35 nagios on
Try it on your browser:
http:///nagios/
If something goes wrong look into:
/var/logs/httpd/error_log
/usr/local/nagios/etc/htpasswd.users
/usr/local/nagios/etc/cgi.cfg
+————————–+
| INSTALL NAGIOS PLUGINS |
+————————–+
# wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.15.tar.gz
# ./configure –with-openssl=/usr/bin/openssl –enable-perl-modules –prefix=/usr/local/nagios –with-nagios-user=nagios
# make all
# make install
Check if the plugins are here
# ls -l /usr/local/nagios/libexec
Give nagios:nagios and execute permission
# chown nagios:nagios -R /usr/local/nagios/libexec
# chmod +x -R /usr/local/nagios/libexec
+——————————-+
| INSTALL CENTREON WEB INTERFACE |
+——————————-+
Install MySQL & PHP5
# yum -y -v install mysql-server
# yum -y -v install php-date
# yum -y -v install php-gd php-mysql php-snmp php-ldap php5-xmlrpc
(NOT WORKING)# yum -y -v install php-mail php-mail-mime php-net-smtp php-net-socket
# yum -y -v install
Start mysql in safe mode and set password
#service mysqld_safe –skip-grant-tables
Set password
# mysql -u root
mysql> use mysql;
mysql> update user set password=PASSWORD(“password”) where User=’root’;
mysql> flush privileges;
mysql> quit
# service mysqld restart
# chkconfig –add mysqld
# chkconfig –level 3 mysqld on
(Optional) – PhpMySQLAdmin for easy administration of MySQL:
# yum -y -v install phpmyadmin
To access go to:
http://infonagiosdsv/phpMyAdmin
(———PAUSE————)
Install NDOUtils
# wget http://prdownloads.sourceforge.net/sourceforge/nagios/ndoutils-1.4b9.tar.gz
# tar -zxvf ndoutils-1.4b9.tar.gz
#./configure
#make all
#make install
(do not run the script to creat a DB, Centreon will do it)
Install EMAIL:
PostFix OR
# yum -y -v install postfix
SendMail,
# yum -y -v install sendmail
Do a Email Test
# echo “TEST EMAIL” | sendmail -s “testing my first email” youtemail@domain.xxx
Upgrade PEAR
# pear upgrade pear
# pear channel-update pear.php.net
# pear install -o -f –alldeps DB_DataObject DB_DataObject_FormBuilder MDB2 Numbers_Roman
# pear install -o -f –alldeps Numbers_Words HTML_Common HTML_QuickForm2 HTML_QuickForm_advmultiselect HTML_Table Auth_SASL
# pear install -o -f –alldeps HTTP Image_Canvas Image_Color Image_Graph Image_GraphViz Net_Traceroute Net_Ping Validate XML_RPC
# pear install -o -f –alldeps SOAP
Php Requirements
# yum install php-mbstring php-posix
Fix Sudo (comment line Defualt requiretty)
# vim /etc/sudoers
#Default requiretty
:wq!
Get Centreon (at this time latest is 2.1.3 06/11/2009)
# wget http://download.centreon.com/index.php?id=144
# bash install.sh -i -v
All defaults OK, but these:
Where is installed RRD perl modules [RRDs.pm] ?
/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/RRDs.pm
Where is PEAR [PEAR.php]
/usr/share/pear/PEAR.php
RRD?
/usr/local/rrdtool/bin/rrdtool
Where is NDO?
/usr/local/nagios/bin/ndomod.o
Start Configuration GUI:
http:///centreon
Recomendations:
If some dependicies is not met just install it and restart httpd
Use the ndo Database with name: nagios
You may need to start NDOUtils
# /usr/local/nagios/bin/ndo2db -c /usr/local/nagios/etc/ndo2db.cfg
Auto START/STOP NDO daemon.
# vim /etc/init.d/nagios
find line bellow start and add:
“if [ $? -eq 0 ]; then…”
/usr/local/nagios/bin/ndo2db -c /usr/local/nagios/etc/ndo2db.cfg
“su – $NagiosUser -c “touch $NagiosVarDir/nagios.log $NagiosRetentionFile…”
find line bellow stop and add:
“killproc_nagios nagios…”
histoy
Be sure to configure your local SNMP community so the
predefined checks will work
# vim /etc/snmp/snmpd.conf
# service snmpd restart
# chkconfig –add snmpd
# chkconfig –level 3 snmpd on
I also noticed an error when running the centreon plugins
ERROR:
Can’t locate Net/SNMP.pm in @INC
SOLUTION:
1) By CPAN (best)
on command line, as root :
[your_host]# perl -MCPAN -e shell
cpan shell — CPAN exploration and modules installation (v1.76)
ReadLine support enabled
cpan> install Net::SNMP
If it’s the first time you run CPAN, it will probably ask you some (simple) questions.
CPAN will also ask you to satisfy some dependencies (Crypt::DES, Digest::MD5, etc..).
2) “By hand”
Get the folowings modules (tar.gz format) on www.cpan.org
- Crypt::DES
- Digest::MD5
- Digest::SHA1
- Digest::HMAC
- Net::SNMP
for each one (you must install Net::SNMP at the end) :
tar zxf .tar.gz
cd
perl Makefile.pl
make test
make install
+—————–+
|INSTALL DOKUWIKI |
+—————–+
Set apache configuration
# vim /etc/httpd/conf.d/dokuwiki.conf
#DOKUWIKI
Alias /wiki “/usr/local/dokuwiki/www”
Options ExecCGI
AllowOverride None
Order allow,deny
Allow from all
# mkdir /usr/local/dokuwiki
# cd /usr/local/dokuwiki
# wget http://www.splitbrain.org/_media/projects/dokuwiki/dokuwiki-2009-02-14b.tgz
# tar -zxvf dokuwiki-2009-02-14b.tgz
# mv dokuwiki-2009-02-14b wwww
# chown apache:root -R /usr/local/dokuwiki/www
# service httpd restart
Browse to:
http:///wiki/install.php
Templates:
Installing templates is simple, just extract the downloaded template archive (
usually a .zip or .tgz file) in the ../lib/tpl/ ),and set the permissions correctly.
Then select the template in the Admin > Config Manager by adjusting the template option.
I recommend a really good template for procedures/documents in my opinion perfect for
nagios called USABLE, check it out at: http://www.dokuwiki.org/template:usable
Will need another plguin to edit sidebar called DisplayWikiPage
# cd /usr/local/dokuwiki/www/lib/plugin
# wget http://cloud.github.com/downloads/tatewake/dokuwiki-plugin-displaywikipage/displaywikipage-stable.tar.gz
Plugins:
Index Menu
http://www.dokuwiki.org/plugin%3Aindexmenu2
Just download and copy it to ../lib/plugins
go to admin > plugins
More interesting plugins
http://www.linux.com/archive/articles/57410
+—————–+
|INSTALL NAGVIS |
+—————–+
Add grpahviz repo
# vim /etc/yum.repos.d/graphviz.repo
[graphviz-stable]
name=Graphviz – RHEL $releasever – $basearch
baseurl=http://www.graphviz.org/pub/graphviz/stable/redhat/el$releasever/$basearch/os/
enabled=1
gpgcheck=0
# yum -y install grpahviz
# yum –enablerepo=graphviz-snapshot update ‘graphviz*’
# wget https://sourceforge.net/projects/nagvis/files/NagVis%201.4%20%28stable%29/NagVis-1.4.4/nagvis-1.4.4.tar.gz/download
# tar -zxvf
# ./install.sh -i ndo2db -u apache -g apache
URL:
http://<SERVER>/nagvis/frontend/nagvis-js/
New installs the user/pass:
nagiosadmin/nagiosadmin
Set the user/name/db where the NDO DB is at inside also dbinstancename (uncomment it):
# vim /usr/local/nagios/share/nagvis/etc/nagvis.ini.php
[backend_ndomy_1]
…
; instance name for tables in NDO-db
dbinstancename=”Central”
If you dont know your dbinstancename take a look in ndomod.cfg, should
be the same name as its set there
# service httpd restart
Then just open your browser in EDIT mode go to:
http://<SERVER>/nagvis/frontend/nagvis-js/
Then just open your browser in USER mode go to:
No hay comentarios:
Publicar un comentario