ACS Monitor is self-hosted network monitoring built for MSPs, IT teams and homelab users who want full control of their data.
Features include SNMP polling (v1/v2c/v3 with custom OIDs), 11 service monitor types (HTTP, ping, DNS, SSH, SMTP, TCP, FTP, POP3, IMAP, MySQL, HTTPS), website monitoring with SSL expiry and content change detection, network auto-discovery, and consecutive-failure alert thresholds via email, SMS, Slack and webhooks.
25 drag-and-drop dashboard widget types, link-shareable. Browser-based diagnostics including ping, traceroute, port scan, DNS lookup, SSL check, WHOIS and HTTP headers with live output. Full REST API.
Two install options: a single-command installer for AlmaLinux, Ubuntu, Debian, Rocky, RHEL, Fedora and Raspberry Pi OS, or a bootable ISO for dedicated VM or bare metal deployments. Both deploy in well under half an hour.
Free tier covers 100 devices with no time limit.