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Unraid 7.3.2 - avahi-daemon entries flooding syslog
Hi JorgeB. I’ve have also done some testing and I believe I’ve isolated the source to a scheduled UniFi gateway process. Environment: - Gateway: UCG Fiber - UniFi OS: 6.0.10 - UniFi Network: 10.6.106 - Unraid server: Antharas - Antharas LAN IP: 192.168.1.20 - Antharas also has 192.168.2.20 on the IoT VLAN - UniFi mDNS Proxy was originally set to Auto I first performed the test you suggested and disabled UniFi mDNS Proxy. The Avahi warnings continued at the same approximately once-per-minute interval, so disabling the configurable mDNS Proxy did not stop the queries/warnings. I subsequently restored mDNS Proxy to its original setting. I also temporarily restricted the Unraid Avahi configuration from: allow-interfaces=br0,br2.2 to: allow-interfaces=br0 and restarted Avahi. The warnings still occurred, so having Avahi active on both the LAN and IoT VLAN was not the cause. I restored the original interface configuration afterward. I then captured the traffic directly on the UCG. This showed the gateway sending queries from 192.168.1.1 to 224.0.0.251:5353 using ephemeral UDP source ports and with the QU bit set, requesting unicast replies. The timing is particularly interesting. At xx:xx:06, I captured a gateway query containing exactly: device-info.tcp.local sftp-ssh.tcp.local smb.tcp.local ssh.tcp.local At that same :06 second, Antharas logs the corresponding: not fitting in legacy unicast packet, dropping messages for sftp-ssh and device-info. This behaviour repeats every minute. So the :06 timing of the gateway discovery query and the Unraid Avahi warnings correlates exactly. I initially investigated the UCG's normal avahi-daemon. One of its persistent high UDP ports was involved in a larger discovery query, but I completely terminated the UCG Avahi daemon and confirmed its PID was gone. Antharas still produced the warnings at the next :06. Therefore the UCG's normal Avahi daemon was not required to trigger the issue. I also stopped /usr/bin/uos-discovery-client as a diagnostic test. The warnings continued. Rebooting the UCG Fiber also did not change the behaviour. I then monitored short-lived UDP sockets/processes on the UCG and found a process being launched approximately once per minute: /usr/sbin/ubntmdnsd Example command line: /usr/sbin/ubntmdnsd -t10 -f /tmp/mdns_services.json -c /data/udapi-config/mdns.cache -s -j -b -u -e meshcop,trel I found what launches it: /etc/cron.d/mdns-job contains: * * * * * root /usr/sbin/ubntmdnsd -t10 -f /tmp/mdns_services.json -c /data/udapi-config/mdns.cache -s -j -b -u -e meshcop,trel So the UCG is explicitly launching ubntmdnsd once every minute. I then inspected /tmp/mdns_services.json. It includes, among many other services: device-info.tcp sftp-ssh.tcp smb.tcp ssh.tcp Those are the same four services in the gateway query captured at :06. Finally I performed an A/B test. I temporarily renamed: /etc/cron.d/mdns-job to: /etc/cron.d/mdns-job.disabled I left Unraid Avahi running and made no other changes. The once-per-minute Avahi warnings stopped completely. I then restored /etc/cron.d/mdns-job, since it is a UniFi-managed component and I did not want to leave the gateway modified. So at this point the chain appears to be: UCG Fiber cron (every minute) → ubntmdnsd → QU mDNS discovery query → Antharas Avahi legacy-unicast response → not fitting in legacy unicast packet, dropping warnings at :06. The configurable UniFi mDNS Proxy being Off does not stop ubntmdnsd from performing this discovery. I have also raised this with Ubiquiti support and they have escalated the case, but I have not yet received a response from their escalation team. If useful, I can provide the packet captures showing the gateway query at :06, the corresponding Unraid syslog from the same time, /tmp/mdns_services.json, or repeat a synchronised capture/syslog test.
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[Plugin] CA Fix Common Problems
Thank you
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[Plugin] CA Fix Common Problems
Can I get some help with logs getting full? I have rebooted and upgraded firmware and problem still persantharas-diagnostics-20250102-1050.zipists. Any Help would be great. Thank you.
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[SUPPORT] ALEXBN71 - CODEPROJECT.AI_SERVER
Hey, I think you need to add the paths and add a gpu template too. That would be really helpful. Like include the - - gpus all
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[Support] binhex - Deluge
I have installed it, the file is in the plugins directory. When I click the checkbox it check it but nothing appears in the left window with all the other plug ins.... any suggestions?
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Too much?
I have looked at the "Recommended systems" and judging what that is. This Build is way over spec. But I see lots of people with better gear even that this? Any cost saving ideas or help would be greatly appreciated. Cheers PCPartPicker Part List CPU: Intel Core i5-10400 2.9 GHz 6-Core Processor ($272.00 @ JW Computers) Motherboard: ASRock Z490 Extreme4 ATX LGA1200 Motherboard ($269.00 @ Mwave Australia) Memory: G.Skill Ripjaws V 16 GB (2 x 8 GB) DDR4-3600 CL18 Memory ($116.60 @ Newegg Australia) Storage: Western Digital Blue SN550 500 GB M.2-2280 NVME Solid State Drive ($75.00 @ Amazon Australia) Storage: Seagate IronWolf NAS 4 TB 3.5" 5900RPM Internal Hard Drive ($155.00 @ Centre Com) Case: Silverstone CS380 ATX Mid Tower Case ($239.00 @ Mwave Australia) Power Supply: be quiet! System Power 9 600 W 80+ Bronze Certified ATX Power Supply Total: $1126.60 Prices include shipping, taxes, and discounts when available Generated by PCPartPicker 2020-12-29 16:52 AEDT+1100
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