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Nagios no Centos 6.4

Um dica rápida de instalação do nagios via repositório

Vamos adicionar os repositórios

Para 32 bits:

# rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm

Para 64 bits:

# rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

Agora vamos instalar os pacotes como php , apache ,gcc 

# yum install  gd gd-devel httpd php gcc glibc glibc-common  -y

Instala o Nagios agora 

# yum install  nagios*  -y

Define a senha do usuário nagiosadmin

# htpasswd /etc/nagios/passwd nagiosadmin

Inicia os servidor do Nagios , Apache 

# service nagios start

# service httpd start

Coloque na inicialização os serviços 

# chkconfig nagios on

# chkconfig httpd  on

Pronto o Nagios já esta instalado para acessar digite o ip do nagios no seu browser

http://<ip do nagios>/nagios

Guia de Referencia:

http://www.unixmen.com/install-and-configure-nagios-in-centos-6-4-rhel-6-4/

Zpanel no Centos 6

Zpanel um painel de hospedagem de sites , emails , é muito fácil de instalar, assim mesmo se você é um novato, você não deve enfrentar nenhum problema instalá-lo no CentOS . Zpanel também está ativamente apoiado pela comunidade, que pode ajudá-lo a resolver a maioria das questões relacionadas com a instalação e configuração.

 Zpanel  utiliza os softwares opensource  como:
         

• Apache Web Server
• Postfix MTA
• Dovecot IMAP/POP3
• ProFTP Daemon
• MySQL
• PHP
• Webalizer
• RoundCube
• phpMyAdmin
• phpSysInfo

 Bom e sua instalação é muito fácil , já com o Centos instalado e atualizado vamos 
para a instalação 

Baixe esse pacote 

# yum install ld-linux.so.2 curl -y

Agora baixe o instalador

# wget http://www.zvps.co.uk/sites/default/files/downloads/centos-6-3/package/installer-x86_64-install.sh.x.tar.gz

Descompacta o mesmo 

#  tar -zxvf installer-x86_64-install.sh.x.tar.gz

Execute  

 # ./installer-x86_64-install.sh.x

Pronto já esta instalado 

no diretório onde baixou e executou o arquivo , após a instalação será criando um .txt com as senhas 

"passwords.txt"


Agora é só digitar o ip no seu browser e pronto 

Pronto já pode hospedar seu site , criar seu email já com webmail , conta ftp , etc...


Guia de Referencia :
 http://www.zpanelcp.com
 

oVirt no Fedora 18

Uma Dica rápida para a instalação do oVirt . Projeto de virtualização open source
 após a instalação do Fedora vamos instalar o oVirt

Instale o seu repositório

# yum localinstall http://ovirt.org/releases/ovirt-release-fedora.noarch.rpm

Agora a instalação do oVirt

# yum install ovirt-engine -y

Adiciona no /etc/hosts um dominio com ip como por exemplo

192.168.1.5 ovirt ovirt.local


Agora digita no terminal

# engine-setup

E irá solicitar algumas informações

Welcome to oVirt Engine setup utility
oVirt Engine uses httpd to proxy requests to the application server.
It looks like the httpd installed locally is being actively used.
The installer can override current configuration .
Alternatively you can use JBoss directly (on ports higher than 1024)
Do you wish to override current httpd configuration and restart the service? ['yes'| 'no'] [yes] :
HTTP Port [80] :
HTTPS Port [443] :
Host fully qualified domain name. Note: this name should be fully resolvable [localhost.localdomain] : ovirt.local
Enter a password for an internal oVirt Engine administrator user (admin@internal) :
Confirm password :
Organization Name for the Certificate [localdomain] : ovirt.local
The engine can be configured to present the UI in three different application modes. virt [Manage virtualization only], gluster [Manage gluster storage only], and both [Manage virtualization as well as gluster storage] ['virt'| 'gluster'| 'both'] [both] :
The default storage type you will be using ['NFS'| 'FC'| 'ISCSI'| 'POSIXFS'] [NFS] :
Enter DB type for installation ['remote'| 'local'] [local] :
Enter a password for a local oVirt Engine DB admin user (engine) :
Confirm password :
Configure NFS share on this server to be used as an ISO Domain? ['yes'| 'no'] [yes] :
Local ISO domain path [/var/lib/exports/iso] :
Firewall ports need to be opened.
The installer can configure firewall automatically overriding the current configuration. The old configuration will be backed up.
Alternately you can configure the firewall later using an example file.
Which firewall do you wish to configure? ['None'| 'Firewalld']: Firewalld

oVirt Engine will be installed using the following configuration:
=================================================================
override-httpd-config: yes
http-port: 80
https-port: 443
host-fqdn: ovirt.local
auth-pass: ********
org-name: ovirt.local
application-mode: both
default-dc-type: NFS
db-remote-install: local
db-local-pass: ********
nfs-mp: /var/lib/exports/iso
config-nfs: yes
override-firewall: Firewalld
Proceed with the configuration listed above? (yes|no): yes

Installing:
Configuring oVirt Engine...                                            [ DONE ]
Configuring JVM...                                                           [ DONE ]
Creating CA...                                                                    [ DONE ]
Updating ovirt-engine service...                                   [ DONE ]
Setting Database Configuration...                               [ DONE ]
Setting Database Security...                                          [ DONE ]
Creating Database...                                                       [ DONE ]
Updating the Default Data Center Storage Type...  [ DONE ]
Editing oVirt Engine Configuration...                        [ DONE ]
Editing Postgresql Configuration...                            [ DONE ]
Configuring the Default ISO Domain...                     [ DONE ]
Configuring Firewall...                                                  [ DONE ]
Starting ovirt-engine Service...                                   [ DONE ]
Configuring HTTPD...                                                   [ DONE ]

**** Installation completed successfully ******

(Please allow oVirt Engine a few moments to start up.....)

**** To access oVirt Engine browse to http://ovirt.local:80 ****

Additional information:
* There are less than 4096 MBs of available free memory on this machine.
It is recommended to have at least 4096 MBs of available memory to run the oVirt Engine.
* oVirt Engine CA SSL Certificate SHA1 fingerprint: 08:E3:A8:C3:6E:07:8F:43:DD:91:09:00:04:34:BF:49:91:15:58:26
* SSH Public key fingerprint: d7:46:15:51:42:98:66:47:8d:7d:80:d1:a8:b8:30:2e
* A default ISO share has been created on this host.
If IP based access restrictions are required, please edit /var/lib/exports/iso entry in /etc/exports
* The installation log file is available at: /var/log/ovirt-engine/engine-setup_2013_06_04_21_48_25.log
* Please use the user "admin" and password specified in order to login into oVirt Engine
* To configure additional users, first configure authentication domains using the 'engine-manage-domains' utility

Pronto o oVirt esta instalado , para acessar digita no seu browser
http://<ip do servidor do ovirt>

Agora clica em Administrator Portal
e coloca o usuário admin e a senha que tu definiu na instalação

 Pronto já podes usar o oVirt

Guia de Referencia

 www.ovirt.org
http://fedoraproject.org/wiki/Features/oVirt
http://mr-marcelo-barbosa.tumblr.com/post/51534117741/ovirt-all-in-one-no-fedora-18