Hi All,

I try to connect to my stunnel server, however, only port 443 is working. For other ports are not working.

Does it mean my company's proxy server is blocking SSL communication on all ports except 443? ( I am a newbie, just assuming stunnel always working with SSL even for 80 port, if I am wrong please point me out, thank you)

Is there any other way to bypass the proxy server without SSL communication? Or internal proxy server can always detect tunnel actions if there is non-SSL protocol ?

below is my configuration file for client side.

/etc/stunnel/stunnel.conf

------------------START--------------------------

[https1]

accept = 80

protocol = connect

protocolAuthentication = basic

protocolHost = myvpsserver-ip:80

protocolUsername = myname

protocolPassword = p@ssw0rd

connect = company-proxyserver:8080

[https2]

accept = 443

protocol = connect

protocolAuthentication = basic

protocolHost = myvpsserver-ip:443

protocolUsername = myname

protocolPassword = p@ssw0rd

connect = company-proxyserver:8080

----------------------------END---------------------------------------------

---------------------------Tunnel PORT 80 -----------------------------

2013.10.08 14:18:43 LOG7[10601:3078687600]: TCP_NODELAY option set on remote socket

2013.10.08 14:18:43 LOG5[10601:3078687600]: Negotiations for connect (client side) started

2013.10.08 14:18:43 LOG7[10601:3078687600]: -> CONNECT my-remote-server-ip:80 HTTP/1.1

2013.10.08 14:18:43 LOG7[10601:3078687600]: -> Host: my-remote-server-ip:80

2013.10.08 14:18:43 LOG7[10601:3078687600]: -> Proxy-Authorization: basic c3VoZW5nOlBAc3N3MHJk

2013.10.08 14:18:43 LOG7[10601:3078687600]: ->

2013.10.08 14:18:43 LOG7[10601:3078687600]: <- HTTP/1.1 403 Forbidden

2013.10.08 14:18:43 LOG3[10601:3078687600]: CONNECT request rejected

2013.10.08 14:18:43 LOG7[10601:3078687600]: <- Cache-Control: no-cache

2013.10.08 14:18:43 LOG7[10601:3078687600]: <- Pragma: no-cache

2013.10.08 14:18:43 LOG7[10601:3078687600]: <- Content-Type: text/html; charset=utf-8

2013.10.08 14:18:43 LOG7[10601:3078687600]: <- Proxy-Connection: close

2013.10.08 14:18:43 LOG7[10601:3078687600]: <- Connection: close

2013.10.08 14:18:43 LOG7[10601:3078687600]: <- Content-Length: 725

2013.10.08 14:18:43 LOG7[10601:3078687600]: <-

2013.10.08 14:18:43 LOG5[10601:3078687600]: Connection reset: 0 bytes sent to SSL, 0 bytes sent to socket

---------------------------Tunnel PORT 443 -----------------------------

2013.10.08 14:42:00 LOG7[10601:3078687600]: TCP_NODELAY option set on remote socket

2013.10.08 14:42:00 LOG5[10601:3078687600]: Negotiations for connect (client side) started

2013.10.08 14:42:00 LOG7[10601:3078687600]: -> CONNECT my-remote-server-ip:443 HTTP/1.1

2013.10.08 14:42:00 LOG7[10601:3078687600]: -> Host: my-remote-server-ip:443

2013.10.08 14:42:00 LOG7[10601:3078687600]: -> Proxy-Authorization: basic c3VoZW5nOlBAc3N3MHJk

2013.10.08 14:42:00 LOG7[10601:3078687600]: ->

2013.10.08 14:42:00 LOG7[10601:3078687600]: <- HTTP/1.1 200 Connection established

2013.10.08 14:42:00 LOG6[10601:3078687600]: CONNECT request accepted

2013.10.08 14:42:00 LOG7[10601:3078687600]: <-

2013.10.08 14:42:00 LOG5[10601:3078687600]: Protocol negotiations succeeded

Thanks & Best Regards,

Su Heng