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Home » Product Feedback » Kerio Control Feedback » NFQUEUQ LIMIT (nf_queue: full at 1024 entries, dropping packets(s))
dialog-warning.png  NFQUEUQ LIMIT [message #147647] Thu, 27 February 2020 12:15 Go to next message
Messages: 4
Registered: December 2018
To avoid dropping packets by kernel on high load (debug messages like nf_queue: full at 1024 entries, dropping packets(s)) please increase parameter NFQNL_QMAX_DEFAULT from 1024 to 8192!!
This parameter defined in file net/netfilter/nfnetlink_queue_core.c of linux kernel source, that using kerio control.
Re: NFQUEUQ LIMIT [message #148389 is a reply to message #147647] Sat, 04 July 2020 00:30 Go to previous message
CristianoIera is currently offline  CristianoIera
Messages: 5
Registered: February 2014
Nice idea.
The kerio control engine is too sensible to DDOS attacks, it doesn't detect and close correctly the half-open connections in a DDOS attack. It's really easy to make it unresponsive also with a badwidth of 200Mbits only (xeon, 8GB, 6 core).
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