IT monitoring: find problems before your users do

A full disk, an expired certificate or a dying UPS battery can be seen days in advance. Why monitoring pays off and what to watch.

Many IT outages do not happen suddenly. A disk fills up over weeks, a certificate expiry date is known months in advance, a backup has been failing silently since the last update. Without monitoring, the company learns about it when work stops. With monitoring, IT gets an alert in time.

What to monitor

  • Availability of servers, websites, VPN, internet links and key network devices.
  • Resources: disk space, memory, CPU, temperature.
  • Backups: was each job successful, and how old is the last good copy?
  • Certificates and domains: expiry dates.
  • Hardware health: disks (SMART), RAID status, UPS battery, power supplies.
  • Security events: failed logins, new administrator accounts, firewall alerts.

How to make it useful

  1. Start with the most important systems and expand gradually.
  2. Set sensible thresholds — too many alerts are ignored just like none.
  3. Send alerts where people actually see them: Telegram, SMS or email, with a clear owner.
  4. Keep history and graphs; they help plan upgrades and investigate incidents.

Open-source tools such as Zabbix cover most needs of a small or medium company and can grow with it.

Good monitoring turns an emergency into a planned task.

Need help with this? Contact CySec for a free consultation.


All articles

Need help with this?

Our engineers can review your current setup and propose concrete improvements.