Create a shell script that will dump the Redis database

cd ~ mkdir redi-backups-script cd redis-backups-script nano redis_backups-script.sh

Paste the script below:

#!/bin/bash rdb_file="/Place-directory-of-rdb-here/redis/dump.rdb" redis_cli="/usr/bin/redis-cli" DIR=`date +%d-%m-%y` DEST=~/redis_backups/$DIR mkdir $DEST echo save| $redis_cli exit 1

Set script to executable:

chmod +x ~/scripts/redis_backups-script.sh

Create a cron to run daily:

Then create a cron job to run the script every day at midnight:

crontab -e 0 0 * * * ~/redis-backups-script/redis_backup.sh

Restore RDB backup

Disable Append Only in the config:

nano /etc/redis/redis.conf appendonly no

Stop redis:

sudo service redis-server stop

Restore the redis backup:

rename the rdb file you wish sudo cp /home/redis/dump.rdb /home/redis/dump.rdb.bak

You can then copy the backup rdb file as follows:

sudo cp /redis_backups/------/dump.rdb /home/redis/dump.rdb

Apply the proper permissions to the dump.rdb file:

sudo chmod 660 /home/redis/dump.rdb

Re-starting Redis server

sudo service redis-server start

Install Zabbix 7.2 repo

wget https://repo.zabbix.com/zabbix/7.2/release/debian/pool/main/z/zabbix-release/zabbix-release_latest_7.2+debian12_all.deb

dpkg -i zabbix-release_latest_7.2+debian12_all.deb

Update repos

apt update

Install Zabbix server and frontend

apt install zabbix-server-mysql zabbix-frontend-php zabbix-nginx-conf zabbix-sql-scripts zabbix-agent2

Install plugins

apt install zabbix-agent2-plugin-mongodb zabbix-agent2-plugin-mssql zabbix-agent2-plugin-postgresql

Install mysql

wget https://dev.mysql.com/get/mysql-apt-config_0.8.30-1_all.deb

sudo dpkg -i mysql-apt-config_0.8.30-1_all.deb

Error on this new install, where lsb-release is not installed

apt-get install lsb-release

Try again…

dpkg -i mysql-apt-config_0.8.30-1_all.deb

Error, gnupg not installed

apt install gnupg2

Give it another go…

dpkg -i mysql-apt-config_0.8.30-1_all.deb

I had to list upgradable packages :

apt-list --upgradable

Which spit out : mysql-common/unknown 8.4.4-1debian12 all [upgradable from: 5.8+1.1.0]

Then installed mysql-common

apt-get install mysql-common

Had to uninstall Mariadb to resolve these conflicts

apt remove mariadb-client-core

Then install mysql-server:

apt install mysql-server

Enter your password, twice

Now enter mysql by typing :

mysql -u root -p

Enter the following command individually Where ‘password’ is where you type in your actual own password

mysql> create database zabbix character set utf8mb4 collate utf8mb4_bin; mysql> create user zabbix@localhost identified by 'password'; mysql> grant all privileges on zabbix.* to zabbix@localhost; mysql> set global log_bin_trust_function_creators = 1; mysql> quit;

Populate the database with zabbix script

zcat /usr/share/zabbix/sql-scripts/mysql/server.sql.gz | mysql --default-character-set=utf8mb4 -uzabbix -p zabbix mysql --u root -p set global log_bin_trust_function_creators = 0; quit;

Edit file /etc/zabbix/zabbix_server.conf You can use nano

nano /etc/zabbix/zabbix_server.conf

Uncomment the DBPassword section, and type your password

Then hold ctrl and tap x, it will ask if you want to save changes.

Enable services:

systemctl enable zabbix-server zabbix-agent2 nginx php8.2-fpm systemctl restart zabbix-server zabbix-agent2 nginx php8.2-fpm

Check that zabbix service has started

journalctl -xeu zabbix-server.service

Delete the 'default site in nginx

sudo rm -rf /etc/nginx/sites-enabled/default

Make sure the symbolic link to the zabbix nginx file is present

ln -s /etc/zabbix/nginx.conf /etc/nginx/sites-enabled/zabbix.conf

Check that the zabbix nginx file is in the includes in nginx config

nano /etc/nginx/nginx.conf

Look for :

include /etc/nginx/sites-enabled/*

Now restart nginx

systemctl restart nginx

Hit the browser and type in the IP (or URL that you may have put in the zabbix nginx config file)

Make sure to configure locales

sudo dpkg-reconfigure locales

Reboot the system

sudo shutdown -r now

Add your database password

Add a server name

The default username is Admin, and the password is zabbix

Unable to negotiate with 10.10.1.35 port 22: no matching host key type found. Their offer: ssh-rsa,ssh-dss

While attempting ssh this error is generally due to mismatched versions of ssh, where an up to date version is attempting to access an older version

Add the following to your command :

The proper way:

ssh -o KexAlgorithms=diffie-hellman-group14-sha1 -oHostKeyAlgorithms=+ssh-dss 10.10.1.35

The cheap way:

Example :

ssh -oHostKeyAlgorithms=+ssh-dss 10.10.1.35

or ssh -oHostKeyAlgorithms=+ssh-dss user@10.10.1.35

This can be added to the ~/.ssh/config file

Host my-server HostName 10.10.1.35 HostKeyAlgorithms=+ssh-dss