A complete guide for monitoring LAMP [Linux/Apache/Mysql/PHP] application through
Zabbix and setting up email notifications.
In the following section, I am going to use the following stack,
1- for Zabbix server: ubuntu20 / zabbix 5.0
2: For application [LAMP server] AMI 2 and steps are mentioned for AMI1 and ubuntu 18. Steps are a bit the same for another platform as well.
3. I am utilizing AWS for all Zabbix servers and LAMP Server
Monitoring LAMP App through Zabbix
First of All, We need to set up a Zabbix server.
Setting Up Zabbix Server
As mentioned, we are using, Zabbix 5.0 on ubuntu.
https://www.zabbix.com/download?zabbix=5.0&os_distribution=ubuntu&os_version=20.04_focal&db=mysql&ws=apache We are following exactly the same steps as mentioned on this page, except one part, where we need to install MySQL server because we are using the same machine to host zabbix database as well.
dpkg -i zabbix-release_5.0-1+focal_all.deb
apt install zabbix-server-mysql zabbix-frontend-php zabbix-apache-conf zabbix-agent
apt-get install mysql-server mysql-client
mysql -u root -p
zcat /usr/share/doc/zabbix-server-mysql*/create.sql.gz | mysql -uzabbix -p zabbix
systemctl restart zabbix-server zabbix-agent apache2
systemctl enable zabbix-server zabbix-agent apache2
Once setup is done and assuming port 80 is open on the zabbix server,
you can browser this url for the front end
Default Credential to Login are
Admin / zabbix Basic Flow of monitoring There is a Zabbix server, which has a monitoring interface There is a Zabbix agent installed and configured on the machine which requires monitoring [in our case, LAMP application], called Host Create a Host configuration, just an entry with hostname and associate monitoring template Attach some monitoring templates. There are a prebuilt template for Linux/apache/PHP/MySQL and many more services and you can also create The template contains “items” which has a configuration for what needs to monitor Item contains triggers that raise alarm on basis of the defined threshold Zabbix agent [active/passive] utilized to send the data to Zabbix server on basis of these template configurations. Active: where agent sends the data automatically [Prefer This to save unnecessary polling of agent] Passive, Zabbix server will make a request to Zabbix agent to pull the data Dashboard/Graph/Screen to monitor Media to add notification Setting Up Zabbix Agent on LAMP Server [AMI 2] Considering the following stack of LAMP application Linux: AMI 2, Apache server, php 7.4 through FPM, MySQL server Install the agent
rpm -Uvh https://repo.zabbix.com/zabbix/5.0/rhel/7/x86_64/zabbix-agent-5.0.9-1.el7.x86_64.rpm
systemctl enable zabbix-agent.service
install the agent and enable at boot
Edit Agent Config File
Define Value in Server:<zabix server IP/ if the same network then private ip will work>, Used for passive monitoring Server=172.31.23.126,22.214.171.124 Listen Port 10050 Define value in ServerActive, for agetn active ServerActive=172.31.23.126,126.96.36.199 Define Hostname, This value is used it uniquely identify in Zabbix server and IT SHOULD BE EXACT MATCH in Zabbix server host configuration
Restart the service,
systemctl restart zabbix-agent.service
Setting up Host Configuration in Zabbix Server Login on Zabbix server URL : HTTP://<pulbicip>/zabbix Under Configuration, click on Host, add the exact hostname Add Ip of the host <private/public depend upon network>, the default port Make sure 10051 and 10050 ports are open on the client and server for communication Add template, you can import the custom template attached in the link
Once setup zabbix client will be able to sent data to server, You can check logs on zabbix client machine
tail -f /var/log/zabbix/zabbix_agentd.log
It will start monitoring linux basic like CPU/Memory/Disk etc
Setting Up Apache configuration on LAMP server
For monitoring purposes, We need to add some configurations so that Zabbix agent can send that data to Zabbix server.
Make sure server info module is enabled
Once the module is enabled, add the following line in httpd.conf [/eth/httpd/conf/httpd.conf]
Deny from all
Allow from localhost
restart the apache server
service httpd restart
test this from the command line,
It should provide server information. Once this is done, you can monitor the host and graphs, and you will be getting up detail about the apache server
You Can Monitor apache load, worker status, process, etc monitor long request or time taking request Setting Up PHP-FPM for monitoring
To monitor php-fpm process , You need to modify two file,
edit php-fpm config from the file vim /etc/php-fpm.d/www.conf uncomment folloowing pm.status_path = /status ping.path = /ping ping.response = pong Edit httpd conf file [/etc/httpd/conf/httpd.conf] and add the following code
Allow from localhost
Allow from localhost
Just check php-fpm path is same for you
For php 5.6, there may be change in name of php-fpm process, like
SetHandler “proxy:unix:/run/ php5.6-fpm/www.sock|fcgi://localhost/status” You Can Monitor PHP-fpm load, process, etc monitor long request or time taking request Making Changes so that Apache access logs can be monitored
In my custom template, I have added a few custom items to monitor the number of 404 status code requests, 500 status code requests, and 404 logs
You will get this Data under the Host graph along with other data
Make sure, the Zabbix agent is able to read the log file, this can be ensured by executing the following command
su zabbix -s /bin/bash -c "tail /var/log/httpd/access_log"
if you are getting permission denied, please provide the permission to Zabbix users to read this directory.
Setting Up Zabbix Agent on AMI 1 Install the agent
rpm -Uvh https://repo.zabbix.com/zabbix/5.0/rhel/6/x86_64/zabbix-agent-5.0.9-1.el6.x86_64.rpm
chkconfig zabbix-agent on
Rest of the steps are same.
Setting Up Zabbix Agent on Ubuntu Install the agent
dpkg -i zabbix-agent_5.0.9-1+Bbionic_amd64.deb
install the agent and enable it at boot
Although Process is the same except there are changes in file location, as,
the apache config file will be located at /etc/apache2/apache.conf In template item we are accessing apache logs, the location will be changed in case of ubuntu [/var/log/apach2/] Adding Email Notification Login on web interface of zabbix server http://<publicip>/zabbix Click on administartion > media > Email [html] Add SMTP configuration [if aws, you cand use AWS SES service] Click on test to test the configuration Click on User under Administration > Users Click on media > add media > select email and enter email id
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