OS version:
OpenBSD 5.7 GENERIC#825 amd64
openvpn vesion:
OpenVPN 2.3.6 x86_64-unknown-openbsd5.7
[SSL (OpenSSL)] [LZO] [MH] [IPv6] built on Mar 7 2015
server config file:
port 64001
proto tcp-server
user _openvpn
group _openvpn
ca keys/ca.crt
cert keys/srv.crt
key keys/srv.key
dh keys/dh2048.pem
tls-server
dev tun0
server 172.30.0.0 255.255.0.0
keepalive 30 120
max-clients 2000
persist-key
persist-tun
verb 3
How I reproduce the problem:
- Start server
- Let 1 client connect
- Send SIGUSR1 to server
This is the server log after SIGUSR1 is issued:
Fri Aug 14 15:53:25 2015 SIGUSR1[hard,] received, process restarting
Fri Aug 14 15:53:25 2015 Restart pause, 1 second(s)
Fri Aug 14 15:53:26 2015 Socket Buffers: R=[16384->65536] S=[16384->65536]
Fri Aug 14 15:53:26 2015 TCP/UDP: Socket bind failed on local address
[undef]: Address already in use
Fri Aug 14 15:53:26 2015 Exiting due to fatal error
Fri Aug 14 15:53:26 2015 Closing TUN/TAP interface
The restart works fine if either:
- SIGUSR1 is sent before any client connects
- "user" & "group" options are commented out
- "proto" is set to "tcp"
Any ideas?
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