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If you would like help, here is a few things you will want to do in order to help us help you.

**Post your configs from client and server, without comments. you can strip comments in linux/bsd with something like this:
grep -vE '^#|^;|^$' server.conf
**Tell us your goal.
**If you are having problems connecting, post your logfiles from server and client after using verb 4 in both configs


Also, there are 2 things you should be aware of:

**Sometimes you cannot avoid tunneling over tcp, but if you can avoid it, DO. Why TCP Over TCP Is A Bad Idea: http://sites.inka.de/~bigred/devel/tcp-tcp.html
**You ONLY want to use dev tap if you are tunneling layer2 traffic, if you are using IP traffic you want tun. If you are using tap only for windows file sharing, look into running a WINS server instead.



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 WARNING: No server certificate verification method 
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 Post subject: WARNING: No server certificate verification method
PostPosted: Fri Aug 10, 2012 10:18 pm 
OpenVpn Newbie

Joined: Fri Aug 10, 2012 9:23 pm
Posts: 1
hello i install openvpn on cent os
but when i try connection its stop as "connection"

Code:
Sat Aug 11 00:16:05 2012 OpenVPN 2.2.2 Win32-MSVC++ [SSL] [LZO2] [PKCS11] built on Dec 15 2011
Sat Aug 11 00:16:05 2012 WARNING: No server certificate verification method has been enabled.  See http://openvpn.net/howto.html#mitm for more info.
Sat Aug 11 00:16:05 2012 NOTE: OpenVPN 2.1 requires '--script-security 2' or higher to call user-defined scripts or executables
Sat Aug 11 00:16:05 2012 LZO compression initialized
Sat Aug 11 00:16:05 2012 Control Channel MTU parms [ L:1544 D:140 EF:40 EB:0 ET:0 EL:0 ]
Sat Aug 11 00:16:05 2012 Socket Buffers: R=[8192->8192] S=[8192->8192]
Sat Aug 11 00:16:05 2012 Data Channel MTU parms [ L:1544 D:1450 EF:44 EB:135 ET:0 EL:0 AF:3/1 ]
Sat Aug 11 00:16:05 2012 Local Options hash (VER=V4): '69109d17'
Sat Aug 11 00:16:05 2012 Expected Remote Options hash (VER=V4): 'c0103fa8'
Sat Aug 11 00:16:05 2012 Attempting to establish TCP connection with 85.17.214.240:7822
Sat Aug 11 00:16:05 2012 TCP connection established with 85.17.214.240:7822
Sat Aug 11 00:16:05 2012 TCPv4_CLIENT link local: [undef]
Sat Aug 11 00:16:05 2012 TCPv4_CLIENT link remote: 85.17.214.240:7822
Sat Aug 11 00:16:06 2012 TLS: Initial packet from 85.17.214.240:7822, sid=bc7954ec 09aa0c97
Sat Aug 11 00:16:26 2012 Connection reset, restarting [-1]
Sat Aug 11 00:16:26 2012 TCP/UDP: Closing socket
Sat Aug 11 00:16:26 2012 SIGUSR1[soft,connection-reset] received, process restarting
Sat Aug 11 00:16:26 2012 Restart pause, 5 second(s)


the client file is

Code:
client
remote  85.17.214.240 7822
proto tcp
dev tun
comp-lzo
ca ca.crt
cert client1.crt
key client1.key
route-delay 2
route-method exe
redirect-gateway def1
dhcp-option DNS 10.8.0.1
verb 3



any help please ?
:oops: :oops: :oops: :oops:


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 Post subject: Re: WARNING: No server certificate verification method
PostPosted: Sat Aug 11, 2012 8:13 am 
Forum Team
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Joined: Wed Jan 12, 2011 9:23 am
Posts: 2798
Location: Athens,Greece
hi there,

i have a few questions...

you are saying that you have install openvpn on centos,
logs shown are client logs from windows pc :?

can you post server configs/logs?

Michael.

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