List of commands to troubleshoot UDM Pro;
The best command for packet related issues is tcpdump
tcpdump <interface> -w <filename.pcap>
Most of the commands are just Linux commands. However some are unique to the UDM/UDM-P.
| Cisco/EdgeOS/VyOs Command/Best description | UDM/UDM-P SSH Command |
|---|---|
| show version | info |
| show system hardware and installed software | ubnt-device-info summary |
| show cpu tempeture | ubnt-systool cputemp |
| show fan speed | ubnt-fan-speed |
| show uptime | uptime |
| show ip route | netstat -rt -n |
| show tech-support (dump a file for tech support) | ubnt-make-support-file <file.tar.gz> |
| show ppp summery | pppstats |
| show current user | whoami |
| show log | cat /var/log/messages |
| show interface summary | ifstat |
| show interfaces | ifconfig |
| show other Ubiquiti devices on local LAN segment (ubnt-discovery) | ubnt-tools ubnt-discover |
| show config (wireless) | cat /mnt/data/udapi-config/unifi |
| show DHCP leases (to NSname) | cat /mnt/data/udapi-config/dnsmasq.lease |
| packet capture | tcpdump |
| shutdown | poweroff |
| reload | reboot |
| show ipsec sa | ipsec statusall |
| factory reset | factory-reset.sh |
| show system burnt in MAC address | ubnt-tools hwaddr |
| Unifi Server commands (logs files) | |
| show unifi server logs | cat /mnt/data/unifi-os/unifi/logs/server.log |
| show unifi server setttings | cat /mnt/data/unifi-os/unifi-core/config/settings.yaml |
| show unifi server http logs | cat /mnt/data/unifi-os/unifi-core/logs/http.log |
| show unifi server http logs (errors) | cat /mnt/data/unifi-os/unifi-core/logs/errors.log |
| show unifi server discovery log | cat /mnt/data/unifi-os/unifi-core/logs/discovery.log |
| show unifi system logs | cat /mnt/data/unifi-os/unifi-core/logs/system.log |
Tested with 1.8.3-5
To restart UDM Pro to release memory pressure without restarting, SSH and enter this;
unifi-os restart
To update udm pro software;
Start unifi shell = “unifi-os shell” and then apt update && upgrade
Resource
Click this link to see the reference.
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