I am trying to connect to a openvpn server on the Ubuntu 13.10 server(linode vps) , but it always halt after displaying the message below

=========================================
host ip: 106.186.119.79
Obtaining random vpn server from database...
1 servers found!
Connecting to:
USA, Florida, Jacksonville (LOC1 S5) 198.203.31.130 tcp
Loading configuration...


>>>>running openvpn...
Tue Aug 12 23:51:55 2014 OpenVPN 2.3.2 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [EPOLL] [PKCS11] [eurephia] [MH] [IPv6] built on Jul 12 2013
Tue Aug 12 23:51:55 2014 WARNING: file '/home/jwj/password.txt' is group or others accessible
Tue Aug 12 23:51:55 2014 NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Tue Aug 12 23:51:55 2014 Attempting to establish TCP connection with [AF_INET]198.203.31.130:443 [nonblock]
Tue Aug 12 23:51:56 2014 TCP connection established with [AF_INET]198.203.31.130:443
Tue Aug 12 23:51:56 2014 TCPv4_CLIENT link local: [undef]
Tue Aug 12 23:51:56 2014 TCPv4_CLIENT link remote: [AF_INET]198.203.31.130:443
Tue Aug 12 23:51:56 2014 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this
Tue Aug 12 23:52:00 2014 VERIFY OK: depth=1, C=GB, ST=London, L=London, O=Privax Ltd, OU=HMA Pro VPN, CN=hidemyass.com, name=HMA, emailAddress=info@privax.com
Tue Aug 12 23:52:00 2014 VERIFY OK: nsCertType=SERVER
Tue Aug 12 23:52:00 2014 VERIFY OK: depth=0, C=GB, ST=London, L=London, O=Privax Ltd, OU=HMA Pro VPN, CN=server, emailAddress=info@privax.com
Tue Aug 12 23:52:10 2014 WARNING: 'link-mtu' is used inconsistently, local='link-mtu 1575', remote='link-mtu 1543'
Tue Aug 12 23:52:10 2014 WARNING: 'tun-mtu' is used inconsistently, local='tun-mtu 1532', remote='tun-mtu 1500'
Tue Aug 12 23:52:10 2014 Data Channel Encrypt: Cipher 'BF-CBC' initialized with 128 bit key
Tue Aug 12 23:52:10 2014 Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Aug 12 23:52:10 2014 Data Channel Decrypt: Cipher 'BF-CBC' initialized with 128 bit key
Tue Aug 12 23:52:10 2014 Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Aug 12 23:52:10 2014 Control Channel: TLSv1, cipher TLSv1/SSLv3 DHE-RSA-AES256-SHA, 2048 bit RSA
Tue Aug 12 23:52:10 2014 [server] Peer Connection Initiated with [AF_INET]198.203.31.130:443
Tue Aug 12 23:52:12 2014 TUN/TAP device tun0 opened
Tue Aug 12 23:52:12 2014 do_ifconfig, tt->ipv6=0, tt->did_ifconfig_ipv6_setup=0
Tue Aug 12 23:52:12 2014 /sbin/ip link set dev tun0 up mtu 1500
Tue Aug 12 23:52:12 2014 /sbin/ip addr add dev tun0 10.200.2.53/22 broadcast 10.200.3.255

=============================
Anyone can tell me the reason please?


ovpn file content as below
============================
client
dev tun
resolv-retry infinite
nobind
persist-key
persist-tun
auth-user-pass /home/jwj/password.txt
tun-mtu 1500
tun-mtu-extra 32
mssfix 1450
ns-cert-type server

verb 2

<ca>
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
</ca>
<cert>
-----BEGIN CERTIFICATE-----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AlKiorZwCrFogd4Fnk6aY4JNPqc55Ok/0bWLh6fGcj8WowIDAQABo4IBVzCCAVMw
CQYDVR0TBAIwADAtBglghkgBhvhCAQ0EIBYeRWFzeS1SU0EgR2VuZXJhdGVkIENl
cnRpZmljYXRlMB0GA1UdDgQWBBRKkMJmNATxpSybS6W7ezGWucjeRjCB1QYDVR0j
BIHNMIHKgBQjV1wN2kwuVDRaDQpk4p4HThtF46GBpqSBozCBoDELMAkGA1UEBhMC
R0IxDzANBgNVBAgTBkxvbmRvbjEPMA0GA1UEBxMGTG9uZG9uMRMwEQYDVQQKEwpQ
cml2YXggTHRkMRQwEgYDVQQLEwtITUEgUHJvIFZQTjEWMBQGA1UEAxMNaGlkZW15
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B4AwDQYJKoZIhvcNAQEFBQADggEBAKFRIKJpyfOz9Y78np4DyboZ/u52P8Cpj+Yj
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QK8/oB5KpiRWJwOUqAgI+WrNccTfJnsgtwkA/IK2EIMMno61oRdV0BfC3faCgdtj
6+RxQfEnNXArDP/vtDX5PophcUP6SOvaB/lzO8jLSwRXgGWb3JTc68BqevNpLKXG
IMkIcd3EuAwXZMNiLjARvJt9xTqloFjAOiXPywnRB6WlaDkzqKo=
-----END CERTIFICATE-----
</cert>
<key>
-----BEGIN RSA PRIVATE KEY-----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vh/64AOhAoGBAOEWD3u9QlKk5isjN4/K5OxDdMmMXSL3vuwKUa8qW/g9nlcDzX74
Z7/Lc4NRMuz/hls41CY6j3vReM5JiHFGZ2jDlpEdjdw/Zem8iXUmXdFoxlRGlL+/
Uir7xfgcuCYGp/i++TO4reM3clMsg7kZW0e7zLe5RAz55iIUduVy2f8JAoGBAMOV
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qRob4xfObSz11sjNMrQdzxZ/n9Z4cF304se9DydLAoGAPqwt0353IRvZGtnLdrY/
16lQs23p4Pqqpn6ZD/TzdsNxezkL1vbDrJuxpjbNvz/G4U+Jgrt7iDZjNM00uJWp
5XnQSse34EOm1NYyT/RG2zAZSQ3+DQXwkxdXoCYfADeKPbCvIr+ha0rdAlu6sadl
yyt3bRCg6hwLACJCmNDJ8kECgYEAngolZvyPXE0HhM/eYrzAH6v14t5H6jU2M9iu
LpzE3942JIBT15ad9OmCxHQ6YcUczJAg7nxBD6rprzA2gX/qiEa/CYwsK0nOi3jq
sHXYKprpgQ9Wz0N3Q353XW/Gylmnrr6uDk/sgEcox0TbyySszQitVzPHl8l4myOP
wPDPduMCgYA8P05GXiTVMDE1xnmUath0M8+DY9YUHMrIdlSPnyiBn9MRZYa2XFqK
ibutukOECVrdf82r9mqEqKyGYKKbC14y4kY4fLhR15/p8FNJBJcREW3yX5VC5raC
isiaZEXblIAyaylPGUJBosKVuPTmtIpXpZ/Qez/CJHu2rxWG317T+w==
-----END RSA PRIVATE KEY-----
</key>

# remote <IP> <port>
# proto <udp|tcp>

Step 1) Don't use 13.10; it's end-of-life and thus not getting security updates.

- Les

Thank you for your reply! As I can connect the openvpn server successfully using Ubuntu 13.04, so I have thought Ubuntu 13.10 should be OK too. I noticed that the openvpn installed are different edition, one is OpenVPN 2.2.1 x86_64, and the other is OpenVPN 2.3.2 x86_64.

After do_ifconfig, the output is different.

==============================
successful OpenVPN 2.2.1 x86_64

Wed Aug 13 10:03:59 2014 do_ifconfig, tt->ipv6=0, tt->did_ifconfig_ipv6_setup=0
Wed Aug 13 10:03:59 2014 /sbin/ifconfig tun0 10.200.2.67 netmask 255.255.252.0 mtu 1500 broadcast 10.200.3.255

==============================
failed OpenVPN 2.3.2 x86_64

Tue Aug 12 23:52:12 2014 do_ifconfig, tt->ipv6=0, tt->did_ifconfig_ipv6_setup=0
Tue Aug 12 23:52:12 2014 /sbin/ip link set dev tun0 up mtu 1500
Tue Aug 12 23:52:12 2014 /sbin/ip addr add dev tun0 10.200.2.53/22 broadcast 10.200.3.255
==============================

I don't know the difference between using /sbin/ifconfig or /sbin/ip.