Monitoring
Netwatch, ping, alerts, Telegram, email from the router, SNMP: all dojo articles on this topic.
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Netwatch on MikroTik: Get Telegram Alerts When a Device Goes Down
Netwatch is the sentinel of RouterOS: it pings an address and, when it stops responding or comes back, runs a script. We use it to monitor a camera and the internet line, with alerts sent to Telegram, and we look at the thresholds and the behavior after a reboot that the manuals do not mention.
DojoConnect MikroTik to Telegram: Router Alerts on Your Phone
A router that messages you on Telegram when something happens is worth more than ten graphs reviewed the next day. In seven steps, we create the bot, find the chat_id, and write a reusable Telegram script. Other Dojo how-tos use it to send alerts: Netwatch, reboots, rogue DHCP.
DojoSend emails from MikroTik with Gmail: SMTP and app passwords
A MikroTik can send emails (alerts, backups, reports) using a Gmail account as the SMTP server: smtp.gmail.com, port 587, STARTTLS. However, the password is not the account password: you need an app password, which Google only issues when two-step verification is enabled. In RouterOS 7, the configuration is located in /tool e-mail.
DojoUnauthorized DHCP server: how to detect and block it with MikroTik
An unauthorized DHCP server, often a mall WiFi router connected "backwards", can bring a LAN to its knees in minutes. With MikroTik, you can detect it using /ip dhcp-server alert, which notifies you when a server other than the valid one responds, and block it using bridge DHCP snooping, which in RouterOS 7 accepts DHCP responses only from trusted ports.