Settings — DHMS

Site

Site name

Monitoring

How often every monitored device is pinged. 10–30 seconds is recommended.

Ping interval (seconds) Ping timeout (milliseconds) Failed pings before "down" OK pings before "up" again

Scan ranges

Saved IP ranges used by "Scan ranges" on the Devices page when the box there is left empty. One range per line, e.g. 192.168.1.0/24 or 10.0.0.1-50.

Alerts

Windows pop-up alerts (works fully offline) Email alerts (needs internet at this site) SMTP host SMTP port SMTP username SMTP password From address To address(es) Use TLS

The test uses the last saved settings — click Save first if you changed anything above.

Device metadata probing

After a scan, DHMS can ask cameras (ONVIF) and switches (SNMP) for their serial number, brand and model. Best-effort — it never blocks discovery.

Probe devices for details after each scan ONVIF username ONVIF password SNMP community

Clear stored data

Use this when this account moves to a new site or LAN, so old readings never carry forward. Clear live status keeps the equipment list but forgets every up/down reading and its history. Remove all devices wipes the inventory too, for a clean slate. This only affects this account.

Dropdown lists

The values technicians pick from when logging a fix. Deactivated values are hidden from the form but stay in old records.

Reasons

Actions taken

Materials

Rectification types

Equipment & connection lists

The pick-lists used on the Devices and Connectivity pages — camera types, NVR channel counts, switch port counts and how devices are cabled. Edit them to match the equipment on your sites.