Linux 新手！这里已经有人问过类似的问题，但是解决方案对我来说不起作用。有人能帮我解决这个问题吗：
我已经按照以下步骤在 Debian 8.1 上安装了 openvpn 服务器教程
对于网络配置，已经尝试过以下命令：
iptables -A INPUT -p udp -m state --state NEW -m udp --dport 1194 -j ACCEPT
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE
iptables -I FORWARD -i tun0 -o eth0 -s 10.8.0.0/24 -m conntrack --ctstate NEW -j ACCEPT
iptables -I FORWARD -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
但我无法连接到它，因此我运行：
netstat -uapn
我只得到这个：
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
udp 0 0 0.0.0.0:740 0.0.0.0:* 577/rpcbind
udp 0 0 127.0.0.1:773 0.0.0.0:* 597/rpc.statd
udp 0 0 0.0.0.0:36208 0.0.0.0:* 597/rpc.statd
udp 0 0 0.0.0.0:111 0.0.0.0:* 577/rpcbind
udp6 0 0 :::740 :::* 577/rpcbind
udp6 0 0 :::51251 :::* 597/rpc.statd
udp6 0 0 :::111 :::* 577/rpcbind
如果我跑iptables -L
我懂了：
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT udp -- anywhere anywhere udp dpt:openvpn
ufw-before-logging-input all -- anywhere anywhere
ufw-before-input all -- anywhere anywhere
ufw-after-input all -- anywhere anywhere
ufw-after-logging-input all -- anywhere anywhere
ufw-reject-input all -- anywhere anywhere
ufw-track-input all -- anywhere anywhere
ACCEPT udp -- anywhere anywhere udp dpt:openvpn
ACCEPT tcp -- anywhere anywhere tcp dpt:https
ACCEPT udp -- anywhere anywhere state NEW udp dpt:openvpn
Chain FORWARD (policy ACCEPT)
target prot opt source destination
ACCEPT all -- anywhere anywhere ctstate RELATED,ESTABLISHED
ACCEPT all -- 10.8.0.0/24 anywhere ctstate NEW
ufw-before-logging-forward all -- anywhere anywhere
ufw-before-forward all -- anywhere anywhere
ufw-after-forward all -- anywhere anywhere
ufw-after-logging-forward all -- anywhere anywhere
ufw-reject-forward all -- anywhere anywhere
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
ufw-before-logging-output all -- anywhere anywhere
ufw-before-output all -- anywhere anywhere
ufw-after-output all -- anywhere anywhere
ufw-after-logging-output all -- anywhere anywhere
ufw-reject-output all -- anywhere anywhere
ufw-track-output all -- anywhere anywhere
Chain ufw-after-forward (1 references)
target prot opt source destination
Chain ufw-after-input (1 references)
target prot opt source destination
ufw-skip-to-policy-input udp -- anywhere anywhere udp dpt:netbios-ns
ufw-skip-to-policy-input udp -- anywhere anywhere udp dpt:netbios-dgm
ufw-skip-to-policy-input tcp -- anywhere anywhere tcp dpt:netbios-ssn
ufw-skip-to-policy-input tcp -- anywhere anywhere tcp dpt:microsoft-ds
ufw-skip-to-policy-input udp -- anywhere anywhere udp dpt:bootps
ufw-skip-to-policy-input udp -- anywhere anywhere udp dpt:bootpc
ufw-skip-to-policy-input all -- anywhere anywhere ADDRTYPE match dst-type BROADCAST
Chain ufw-after-logging-forward (1 references)
target prot opt source destination
Chain ufw-after-logging-input (1 references)
target prot opt source destination
LOG all -- anywhere anywhere limit: avg 3/min burst 10 LOG level warning prefix "[UFW BLOCK] "
Chain ufw-after-logging-output (1 references)
target prot opt source destination
Chain ufw-after-output (1 references)
target prot opt source destination
Chain ufw-before-forward (1 references)
target prot opt source destination
ufw-user-forward all -- anywhere anywhere
Chain ufw-before-input (1 references)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ufw-logging-deny all -- anywhere anywhere state INVALID
DROP all -- anywhere anywhere state INVALID
ACCEPT icmp -- anywhere anywhere icmp destination-unreachable
ACCEPT icmp -- anywhere anywhere icmp source-quench
ACCEPT icmp -- anywhere anywhere icmp time-exceeded
ACCEPT icmp -- anywhere anywhere icmp parameter-problem
ACCEPT icmp -- anywhere anywhere icmp echo-request
ACCEPT udp -- anywhere anywhere udp spt:bootps dpt:bootpc
ufw-not-local all -- anywhere anywhere
ACCEPT udp -- anywhere 224.0.0.251 udp dpt:mdns
ACCEPT udp -- anywhere 239.255.255.250 udp dpt:1900
ufw-user-input all -- anywhere anywhere
Chain ufw-before-logging-forward (1 references)
target prot opt source destination
Chain ufw-before-logging-input (1 references)
target prot opt source destination
Chain ufw-before-logging-output (1 references)
target prot opt source destination
Chain ufw-before-output (1 references)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ufw-user-output all -- anywhere anywhere
Chain ufw-logging-allow (0 references)
target prot opt source destination
LOG all -- anywhere anywhere limit: avg 3/min burst 10 LOG level warning prefix "[UFW ALLOW] "
Chain ufw-logging-deny (2 references)
target prot opt source destination
RETURN all -- anywhere anywhere state INVALID limit: avg 3/min burst 10
LOG all -- anywhere anywhere limit: avg 3/min burst 10 LOG level warning prefix "[UFW BLOCK] "
Chain ufw-not-local (1 references)
target prot opt source destination
RETURN all -- anywhere anywhere ADDRTYPE match dst-type LOCAL
RETURN all -- anywhere anywhere ADDRTYPE match dst-type MULTICAST
RETURN all -- anywhere anywhere ADDRTYPE match dst-type BROADCAST
ufw-logging-deny all -- anywhere anywhere limit: avg 3/min burst 10
DROP all -- anywhere anywhere
Chain ufw-reject-forward (1 references)
target prot opt source destination
Chain ufw-reject-input (1 references)
target prot opt source destination
Chain ufw-reject-output (1 references)
target prot opt source destination
Chain ufw-skip-to-policy-forward (0 references)
target prot opt source destination
ACCEPT all -- anywhere anywhere
Chain ufw-skip-to-policy-input (7 references)
target prot opt source destination
DROP all -- anywhere anywhere
Chain ufw-skip-to-policy-output (0 references)
target prot opt source destination
ACCEPT all -- anywhere anywhere
Chain ufw-track-input (1 references)
target prot opt source destination
Chain ufw-track-output (1 references)
target prot opt source destination
ACCEPT tcp -- anywhere anywhere state NEW
ACCEPT udp -- anywhere anywhere state NEW
Chain ufw-user-forward (1 references)
target prot opt source destination
Chain ufw-user-input (1 references)
target prot opt source destination
ACCEPT tcp -- anywhere anywhere tcp dpt:ssh
ACCEPT udp -- anywhere anywhere udp dpt:ssh
ACCEPT udp -- anywhere anywhere udp dpt:openvpn
ACCEPT tcp -- anywhere anywhere tcp dpt:http
ACCEPT udp -- anywhere anywhere udp dpt:http
Chain ufw-user-limit (0 references)
target prot opt source destination
LOG all -- anywhere anywhere limit: avg 3/min burst 5 LOG level warning prefix "[UFW LIMIT BLOCK] "
REJECT all -- anywhere anywhere reject-with icmp-port-unreachable
Chain ufw-user-limit-accept (0 references)
target prot opt source destination
ACCEPT all -- anywhere anywhere
Chain ufw-user-logging-forward (0 references)
target prot opt source destination
Chain ufw-user-logging-input (0 references)
target prot opt source destination
Chain ufw-user-logging-output (0 references)
target prot opt source destination
Chain ufw-user-output (1 references)
target prot opt source destination
UFW 表示：
root@server1:~# ufw status
Status: active
To Action From
-- ------ ----
22 ALLOW Anywhere
1194/udp ALLOW Anywhere
80 ALLOW Anywhere
22 ALLOW Anywhere (v6)
1194/udp ALLOW Anywhere (v6)
80 ALLOW Anywhere (v6)
编辑：
如果我运行服务 openvpn 状态：
root@server1:/etc/openvpn# service openvpn status
● openvpn.service - OpenVPN service
Loaded: loaded (/lib/systemd/system/openvpn.service; enabled)
Active: active (exited) since Sun 2015-08-23 22:40:44 CEST; 7min ago
Main PID: 2552 (code=exited, status=0/SUCCESS)
CGroup: /system.slice/openvpn.service
这是否意味着 openvpn 正在运行？不是吗？