redhat6.5 installation cacti monitoring and installation process problem solving

Topic Description : Install cacti as a universal monitoring tool in the Redhat system.

Environment Description: i The client uses the Win7 system to telnet to the Linux server via Putty

Client Ip:192.168.0.23,linux server ip:192.168.0.56 (using intranet)

Cacti principle: Cacti itself is a PHP script, all its functions are done by its plug-in, cacti through the SNMP protocol with the monitored host to obtain communication, monitored host monitoring parameters are stored in a RRA file in the cacti directory, By RRDtool This tool to read the data in this file regularly, and then make the table, rendering to the client.

Installation process:

One: Install lamp environment (can skip this step with lamp environment)

Cacti itself is a PHP program so need to have php,cacti in the process of work will have a lot of data, this data is stored in MySQL, so need to install MySQL database, about lamp environment online There is a lot of information, here I will also demonstrate my installation process, But not necessarily for your environment, different versions of the installation process are not the same. I'm a redhat6.5 here.

1. Installing Apache

Yum-y Install httpd

Start after installation is complete

Service httpd Start

2. Install MySQL

Yum-y install MySQL mysql-server mysql-devel

When the installation is complete, start:

Service mysqld Start

To add a password for the root user of MySQL:

mysqladmin-u root password "password"

3. Install PHP and PHP support

Yum-y Install PHP Php-mysql

After the installation is complete, create a index.php file in the/var/www/html/directory and write the contents:

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Browser Input in the Win7 system http://192.168.56/index.php (You need to enter your own server IP) The following interface appears to indicate that PHP installation was successful

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The Lamp installed successfully

Second, the installation of cacti and cacti support tools required

1. Install SNMP

The cacti is working with the SNMP protocol, the Simple Network Management Protocol, so install the SNMP protocol.

Yum-y Install NET-SNMP net-snmp-devel net-snmp-libs net-snmp-utils

To start the SNMP service:

Service SNMPD Start

Modifying a configuration file

Open/etc/snmp/snmpd.conf This file

Vim/etc/snmp/snmpd.conf

Find Com2sec This line, change the default to 127.0.0.1

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Change the SystemView of line 62nd to all:

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Remove the comments from line 85th

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Service SNMPD Restart

Complete.

3, installation cacti

• Download the cacti package to Cacti's website: www.cacti.net

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I am here in win7 download cacti-0.8.8c.tar.gz This package, to the server (I use SSH), can also be downloaded directly on the server, but my server does not have the download tool, only the client download, to the server.

• Unpack the package:

  TAR-XVF cacti-0.8.8c.tar.gz

• Get cacti-0.8.8c This file, move this file to/var/www/html/and rename it to cacti/

  MV cacti-0.8.8c/var/www/html/cacti/

  Complete

4. Install Drawing Tools RRDtool

Yum-y Install Ttdtool

Iii. preparatory work

1. Create Cacti Users

Useradd cacti

2. Database connection:

cd/var/www/html/cacti/

Mysql-u root-p, enter the database.

Mysql>create database cacti;

Exit the database, in the current directory

Mysql-u root-p cacti<cacti.sql, enter password, complete

3. Modify the config.php file

cd/var/www/html/cacti/include/

Vim config.php

Find the following lines, change the username to Cacti,password to your own, I will use the demonstration here cacti

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Remove the following line of comments

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4. Set up routine tasks

#crontab-e-u cacti

*/5 * * * * php/var/www/html/cacti/poller.php > Dev/null 2>&1

Iv. entering the Cacti interface

1, finish the above steps can enter cacti interface, in Win7 browser input http://192.168.0.56/cacti/Enter

(Again, here you have to enter your own server IP address http://ip/cacti/), the following interface appears to indicate the successful installation,

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2. Click Next to select the new install

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4, this interface is not a problem after clicking Finish

Enter an interface, the default account and password are admin,login after the system will force you to reset a password,

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5. Click Save to enter the cacti interface

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The cacti installation is complete

Five, the installation process of problem solving

1. You are not having permission to access/cacti/graph_view.php in this server.

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May be because SELinux is turned on, and SELinux is turned off

#setenforce 0

2. Cannot connect to MySQL server "localhost" appears. Sure you have specifield a valid MySQL database name in include/config.php

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• It may be that the above connection database which step did not do, as follows:

  #cd/var/www/html/cacti/

  #mysql-U root-p cacti<cacti.sql

  Enter password, restart MySQL

  #service mysqld Restart

• If it still doesn't work, it could be a permissions issue

  Mysql-u root-p enter password into MySQL database

  Mysql>grant all on cacti.* to [e-mail protected] identified by ' cacti ';

  Mysql>grant all on cacti.* to [e-mail protected] identified by ' cacti ';

  mysql> flush Privileges;

  Mysql>quit

Restart the MySQL service, refresh the interface to see
You can also make a soft connection: Ln-s/tmp/mysql.sock/var/lib/mysql/mysql.sock Refresh interface. Note: The above three methods I encountered cacti above error resolution, if there is no workaround, you need to find another method.

3, cacti installation after the diagram

#cd/var/www/html/cacti/

#chown-R Cacti:cacti rra/log/

#chmod-R 777 rra/log/

#vim/etc/php.ini

Find the Date.timezone line, remove the comment, and add "Asia/shanghai" to the back

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redhat6.5 installation cacti monitoring and installation process problem solving