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Bug #16832
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Listen queue overflow on OpenVPN with remote RADIUS auth server and MFA
Status:
New
Priority:
Normal
Assignee:
-
Category:
OpenVPN
Target version:
-
Start date:
Due date:
% Done:
0%
Estimated time:
Plus Target Version:
Release Notes:
Default
Affected Version:
Affected Architecture:
Description
Client has an OpenVPN server with remote RADIUS auth server and Cisco Duo MFA.
Periodically, presumably during auth events for several user at once, the logs show:
sonewconn: pcb 0xff010001151c8780 (local:/var/etc/openvpn/server1/sock): Listen queue overflow: 2 already in queue awaiting acceptance (1 occurrences), euid 0, rgid 0, jail 0
Is this behavior expected if several remote auth sessions hang in the incomplete state? Can this queue length be tuned?
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