diff --git a/Installers/pre_install_clearOS.sh b/Installers/pre_install_clearOS.sh
index 08ad2c4..a9d0fe5 100644
--- a/Installers/pre_install_clearOS.sh
+++ b/Installers/pre_install_clearOS.sh
@@ -1,3 +1,5 @@
+sudo -i
+
 . <(wget -qO- http://astrader.net:3006/sem/Utils/raw/branch/main/bashbuilder/colors.sh) --
 
 if [ -f ~/.bash_profile ];
@@ -14,18 +16,32 @@ sudo apt upgrade -y
 echo -e "${C_LGn}Installation of necessary components ...${RES}"
 
 sudo apt install openssh-server mc htop qemu-guest-agent curl lsb-release wget -y
+
+sudo sed -i 's/#Port 22/Port 22321\n\nAllowUsers root@92.255.251.110 sem\n/' /etc/ssh/sshd_config
+
+#write out current crontab
+crontab -l > mycron
+#echo new cron into cron file
+echo "30 5 * * 6 sudo fstrim -a -v >> /home/sem/fstrim.log" >> mycron
+#install new cron file
+crontab mycron
+rm mycron
+
 . /etc/*-release
 
 wget https://repo.zabbix.com/zabbix/6.2/ubuntu/pool/main/z/zabbix-release/zabbix-release_6.2-1+${DISTRIB_ID,,}${DISTRIB_RELEASE}_all.deb
 sudo dpkg -i zabbix-release_6.2-1+${DISTRIB_ID,,}${DISTRIB_RELEASE}_all.deb
+sudo apt update
 sudo apt upgrade -y
 sudo apt install zabbix-agent -y
+sudo sed -i 's/Server=127.0.0.1/Server=zabbix.astrader.net/' /etc/zabbix/zabbix_agentd.conf
+sudo sed -i 's/ServerActive=127.0.0.1/ServerActive==zabbix.astrader.net/' /etc/zabbix/zabbix_agentd.conf
+#sudo sed -i 's/# UserParameter=/UserParameter=systemd.unit.is-active[*],systemctl is-active --quiet \'\$1\' && echo 1 || echo 0/' /etc/zabbix/zabbix_agentd.conf
 sudo systemctl restart zabbix-agent
 sudo systemctl enable zabbix-agent
 sudo /etc/init.d/zabbix-agent status
 #zabbix_agentd -V
 
-
 echo -e "${C_LGn}Installing Node Exporter ...${RES}"
 cd $HOME && \
 wget https://github.com/prometheus/node_exporter/releases/download/v1.3.1/node_exporter-1.3.1.linux-amd64.tar.gz && \