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Enable Avast AV (Avast Business Antivirus) security in Proxmox Mail Gateway (PMG) 6.x

This cheatsheet shows how to install and enable Avast antivirus (Avast Business Antivirus for Linux) on your PMG server.

Please note that Avast Business Antivirus for Linux is not provided for free and you need to buy license. You can test it for free after requesting trial license.

Prepare the `apt` package manager

Download and install avast.gpg key:

wget -q -O - https://files.avast.com/files/resellers/linux/avast.gpg | apt-key add -

Proxmox PVE Host Config Backup Script

This script can be used to backup essential configuration files from the Proxmox Virtual Enivronment (PVE) host.

The script will create backups using tar with specified backup prefix and date and time stamp in the file name. Script will also delete backups that are older then number of days specified.

Create backup script file

To create backup script that will be executed every day we can create backup script in /etc/cron.daily/ folder. We need to make it writeable by root (creator) only, but readable and executable by everyone:

touch /etc/cron.daily/pvehost-backup

HP Smart Storage Admin CLI (`ssacli`) installation and usage on Proxmox PVE (6.x)

Why use HP Smart Storage Admin CLI?

You can use ssacli (smart storage administrator command line interface) tool to manage any of supported HP Smart Array Controllers in your Proxmox host without need to reboot your server to access Smart Storage Administrator in BIOS. That means no host downtime when managing your storage.

CLI is not as convenient as GUI interface provided by BIOS or desktop utilities, but still allows you to fully manage your controller, physical disks and logical drives on the fly with no Proxmox host downtime.

ssacli replaces older hpssacli, but shares the same syntax and adds support for newer servers and controllers.

Installation

Installing multipath tools on PVE Cluster with shared storage

This cheatsheet shows how to install and configure multipath tools on Proxmox PVE Cluster where multiple nodes share single storage with multipath configuration, for example SAN storage connected to each of the nodes by two independent paths.

Proxmox PVE version

This cheatsheet has been tested on Proxmox 5.x.

Note about sudo

I do not prepend sudo command to any of commands listed here, but keep in mind that nearly all commands requires su privileges, so use sudo if your account happen to not have root access.

	# /etc/network/interfaces
	#
	auto lo
	iface lo inet loopback

	# device: eth0
	iface eth0 inet manual

	# IPv4 bridge
	# (connect ONLY your firewall/router KVM instance here, this is the WAN device!)