Installazione di un agent Zabbix

Installazione pacchetto

Ubuntu

Agent2

wget https://repo.zabbix.com/zabbix/6.2/ubuntu/pool/main/z/zabbix-release/zabbix-release_6.2-4%2Bubuntu20.04_all.deb
dpkg -i zabbix-release_6.2-4+ubuntu20.04_all.deb
apt update 

• Vedi Debian

Agent

wget https://repo.zabbix.com/zabbix/6.2/ubuntu/pool/main/z/zabbix-release/zabbix-release_6.2-4%2Bubuntu20.04_all.deb
dpkg -i zabbix-release_6.2-4+ubuntu20.04_all.deb
apt update 

Agent2 6.2

Debian >=9 Stretch

• Per versioni precedenti non esiste agent
• Il nuovo agente supporta molti più plugin builtin.
• Il nuovo agente sostituisce il vecchio
• Usare i template agent2 (agent, mysql, etc ...)
• Installare i pacchetti RVM zabbix-agent2-*

• Installare il pacchetto

if (lsb_release -c -s>/dev/null 2>&1); \
then echo "Good:  lsb_release is installed."; \
 cd /tmp  && \
wget https://repo.zabbix.com/zabbix/6.2/$(lsb_release -s -i|  tr '[:upper:]' '[:lower:]')/pool/main/z/zabbix-release/zabbix-release_6.2-4+$(lsb_release -s -i|  tr '[:upper:]' '[:lower:]')$(lsb_release -r -s)_all.deb && \
 dpkg -i zabbix-release_6.2-4+$(lsb_release -s -i|  tr '[:upper:]' '[:lower:]')$(lsb_release -r -s)_all.deb && \
 sudo apt update && \
 sudo apt-get install zabbix-agent2 zabbix-agent2-plugin-*;
else echo -e "BAD: lsb_release is not installed. Please install it:\n sudo apt-get install lsb-release"; \
 sudo apt install lsb-release;
 echo "NOW RELAUNCH."
fi

apt install zabbix-agent2 zabbix-agent2-plugin-*

• Fermare il vecchio agent

systemctl stop zabbix-agent

• Configurare:

vimdiff /etc/zabbix/zabbix_agentd.conf /etc/zabbix/zabbix_agent2.conf 

• Copiare gli userparameters:

cd /etc/zabbix/
cp zabbix_agentd.d/* zabbix_agent2.d/

• Disabilitare gli userparameters builtin:

cd zabbix_agent2.d
mv userparameter_mysql.conf userparameter_mysql.conf.disabled

• Riavviare l'agent:

systemctl restart zabbix-agent2
systemctl status zabbix-agent2

• Disabilitare il vecchio agent:

systemctl disable zabbix-agent

Agent 4.0

Debian >= 11 Bullseye

cd /tmp

wget https://repo.zabbix.com/zabbix/4.0/debian/pool/main/z/zabbix-release/zabbix-release_4.0-4%2Bdebian11_all.deb

dpkg -i zabbix-release_4.0-4+debian11_all.deb && \
sudo apt-get update && \
sudo apt-get dist-upgrade && \
sudo apt-get install zabbix-agent

• Configurare

Debian > Wheezy

if (lsb_release -c -s>/dev/null 2>&1); \
then echo "Good:  lsb_release is installed."; \
 cd /tmp  && \
 wget https://repo.zabbix.com/zabbix/4.0/$(lsb_release -s -i|  tr '[:upper:]' '[:lower:]')/pool/main/z/zabbix-release/zabbix-release_4.0-3+$(lsb_release -c| cut -f 2)_all.deb && \
 dpkg -i zabbix-release_4.0-3+$(lsb_release -c| cut -f 2)_all.deb && \
 sudo apt-get update && \
 sudo apt-get install zabbix-agent;
else echo -e "BAD: lsb_release is not installed. Please install it:\n sudo apt-get install lsb-release"; \
 sudo apt-get install lsb-release;
 echo "NOW RELAUNCH."
fi

• Configurare

Debian Wheezy

• Per Wheezy l'ultima release disponibile è la 3.4:

 cd /tmp  && \
 wget https://repo.zabbix.com/zabbix/3.4/debian/pool/main/z/zabbix-release/zabbix-release_3.4-1+wheezy_all.deb

• Se non va con wget, usare curl

cd /tmp  &&  curl -O -J https://repo.zabbix.com/zabbix/3.4/debian/pool/main/z/zabbix-release/zabbix-release_3.4-1+wheezy_all.deb

• Se si usa un proxy:

--proxy http://user:password@1.2.3.4:3128

• Se curl non è installato, installarlo
• Se non si installa

wget http://archive.debian.org/debian/pool/main/c/curl/curl_7.26.0-1+wheezy13_i386.deb
wget http://archive.debian.org/debian/pool/main/c/curl/libcurl3_7.26.0-1+wheezy13_i386.deb
dpkg -i libcurl3_7.26.0-1+wheezy13_i386.deb
apt-get install curl

• Installare zabbix

 dpkg -i zabbix-release_3.4-1+wheezy_all.deb && \
 sudo apt-get update && \
 sudo apt-get install zabbix-agent

• Configurare

Configurazione

• Configurare i parametri:

export SRV=192.168.10.254
export HST=myserver.example.priv

sed -i -e "s/^Server=127.0.0.1/Server=${SRV}/" /etc/zabbix/zabbix_agent{d,2}.conf
sed -i -e "s/^ServerActive=127.0.0.1/ServerActive=${SRV}/" /etc/zabbix/zabbix_agent{d,2}.conf
sed -i -e "s/^Hostname=Zabbix server/Hostname=${HST}/" /etc/zabbix/zabbix_agent{d,2}.conf
sed -i -e "s/^# Timeout=3/Timeout=30/" /etc/zabbix/zabbix_agent{d,2}.conf

• Verificare

sudoedit /etc/zabbix/zabbix_agent{d,2}.conf

Server=192.168.6.254                 # Internal IP of Zabbix Server/Proxy
ServerActive=192.168.6.254           # Internal IP of Zabbix Server/Proxy
Hostname=internal-host.example.priv  # Name of internal host as defined on zabbix server

• Abilitare il servizio:

sudo systemctl enable zabbix-agent2.service
sudo systemctl restart zabbix-agent2.service
sudo systemctl status zabbix-agent2.service

• Per Wheezy

/etc/init.d/zabbix-agent restart
/etc/init.d/zabbix-agent  status

• Definire l'host sul server Zabbix, assegnandolo al proxy precedentemente creato

• Attendere circa 5 minuti, che il server invii i dettagli di configurazione al proxy.