Setting up alerts in Proxmox is important and critical to making sure you are notified if something goes wrong with your servers. It’s so easy, I should have done this years ago! In this tutorial, we’ll set up email notifications using SMTP with Gmail or G Suite that send email alerts when there are disk errors, ZSF Issues, or when backup jobs run. We’ll then test the alerts to make sure they are working by yoinking a drive from my ZFS pool (and hopefully it doesn’t fail).
Sponsor
Huge THANK YOU to Micro Center for Sponsoring Today’s video!
New Customer Exclusive – Free 256GB SDD: https://micro.center/24c
Check out Micro Center’s PC Builder: https://micro.center/1wk
Submit your build to Micro Center’s Build Showcase: https://micro.center/tvv
Shop Micro Center’s Top Deals: https://micro.center/jb4
Configuring Alerts
install dependencies
1
2
apt update
apt install -y libsasl2-modules mailutils
Configure app passwords on your Google account
https://myaccount.google.com/apppasswords
Configure postfix
1
echo "smtp.gmail.com [email protected]:YourAppPassword" > /etc/postfix/sasl_passwd
update permissions
1
chmod 600 /etc/postfix/sasl_passwd
hash the file
1
postmap hash:/etc/postfix/sasl_passwd
check to to be sure the db file was create
1
cat /etc/postfix/sasl_passwd.db
edit postfix config
1
nano /etc/postfix/main.cf
1
2
3
4
5
6
7
8
9
10
# google mail configuration
relayhost = smtp.gmail.com:587
smtp_use_tls = yes
smtp_sasl_auth_enable = yes
smtp_sasl_security_options =
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
smtp_tls_CAfile = /etc/ssl/certs/Entrust_Root_Certification_Authority.pem
smtp_tls_session_cache_database = btree:/var/lib/postfix/smtp_tls_session_cache
smtp_tls_session_cache_timeout = 3600s
reload postfix
1
postfix reload
send a test emails
1
echo "This is a test message sent from postfix on my Proxmox Server" | mail -s "Test Email from Proxmox" [email protected]
fix from name in email
install dependency
1
2
apt update
apt install postfix-pcre
edit config
1
nano /etc/postfix/smtp_header_checks
add the following text
1
/^From:.*/ REPLACE From: pve1-alert <pve1-alert@something.com>
hash the file
1
postmap hash:/etc/postfix/smtp_header_checks
check the contents of the file
1
cat /etc/postfix/smtp_header_checks.db
add the module to our postfix config
1
nano /etc/postfix/main.cf
add to the end of the file
1
smtp_header_checks = pcre:/etc/postfix/smtp_header_checks
reload postfix service
1
postfix reload
Chapters
00:00 - Why you should set up alerts in Proxmox
01:42 - Micro Center / Free SSD (Sponsor)
02:56 - Where can I find the documentation
03:07 - Installing and configuring dependencies
03:54 - Google Email address configuration
08:43 - Configuring postfix and customizing the email alert
11:47 - Changing the mail sender name with pcre
14:20 - Configure where email alerts are sent
15:01 - Backup Alerts
17:33 - SMART alerts
18:53 - ZFS Alerts
19:52 - Testing in Production
24:03 - How Proxmox alerts could be better
25:30 - Stream Highlight - “Just some flashing lights & music”
Join the conversation
Setting up alerts in Proxmox is important and critical to making sure you are notified if something goes wrong with your servers. It's so easy, I should have done this years ago!https://t.co/6uRz0eVisA#homelab #proxmox pic.twitter.com/i8E1jrP2pE
— Techno Tim (@TechnoTimLive) December 17, 2022
Links
⚙️ See all the hardware I recommend at https://l.technotim.live/gear
🚀 Don’t forget to check out the 🚀Launchpad repo with all of the quick start source files