Update zabbix_agent.sh

zabbix_agent.sh

@@ -12,6 +12,18 @@ fi
 DIRECTORY="/tmp/zabbix_install"
 mkdir ${DIRECTORY}
 
+if [ -f /etc/debian_version ]; then
+    apt update
+    apt install -y snmpd curl
+elif [ -f /etc/redhat-release ]; then
+    yum install -y net-snmp net-snmp-utils
+    firewall-cmd --zone=public --add-service=snmp --permanent
+    firewall-cmd --reload
+else
+    echo "Unable to determine linux distro"
+    exit
+fi
+
 # download the correct file for the correct OS
 FILENAME="zabbix_repo.deb"
 DEBIAN_URL="http://repo.zabbix.com/zabbix/3.4/debian/pool/main/z/zabbix-release/zabbix-release_3.4-1+stretch_all.deb"