Heikki,

You can get this to work by making openvpn and stunnel separate:

On the client side:

[openvpn]
client = yes
accept = localhost:443
connect = remote:20433

On the server side
client = no
accept = 20443
connect = 443

The traffic will be doubly encrypted. It might be easier just to use openvpn for this connection.

Carter

On 3/22/2019 6:23 PM, Heikki Lavaste wrote:

Hi,

To bypass the office firewall to access home server, I'm trying to run openvpn over port 443 with stunnel.

I managed to get to this point:

Log on client side

2019.03.22 22:15:13 LOG5[38]: Connection closed: 352 byte(s) sent to TLS, 2067 byte(s) sent to socket

2019.03.22 22:15:19 LOG5[39]: Service [openvpn] accepted connection from 127.0.0.1:51265

2019.03.22 22:15:19 LOG5[39]: s_connect: connected x.x.x.x:443

2019.03.22 22:15:19 LOG5[39]: Service [openvpn] connected remote server from x.x.x.x:51266

2019.03.22 22:15:19 LOG5[39]: Connection closed: 352 byte(s) sent to TLS, 2067 byte(s) sent to socket

Log on server side:

Mar 22 22:21:54 ssh-server-heikki stunnel[2797]: LOG5[2797:140127128753920]: connect_blocking: connected 127.0.0.1:8443

Mar 22 22:21:54 ssh-server-heikki stunnel[2797]: LOG5[2797:140127128753920]: Service [openvpn] connected remote server from 127.0.0.1:49366

Mar 22 22:21:54 ssh-server-heikki stunnel[2797]: LOG5[2797:140127128753920]: Connection closed: 2067 byte(s) sent to SSL, 352 byte(s) sent to socket

Config:

Client

[openvpn]

client = yes

accept = localhost:1337

connect = x.x.x.xg:443

cert = C:\Users\heikki_lavaste\Documents\stunnel\stunnel.pem

verifyChain = yes

verify = 2

CAfile = C:\Users\heikki_lavaste\Documents\stunnel\ca-cert.pem

checkHost = stunnel.heikki-lab.local

sslVersion = TLSv1

Server

chroot = /var/run/stunnel

sslVersion = TLSv1

pid = /stunnel.pid

setuid = nobody

setgid = nobody

socket = l:TCP_NODELAY=1

socket = r:TCP_NODELAY=1

cert = /etc/stunnel/stunnel.pem

[openvpn]

accept = 443

connect = localhost:8443

cert = /etc/stunnel/stunnel.pem

The issue is probably nothing to do with stunnel but if somebody can help me figure this out, that'd be appreciated.

Kind Regards

Heikki
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