OpenVPN和pfsense端口配置

Question

我想将OpenVpn配置为在虚拟服务器内部的专用网络中连接，我遵循一些说明，并阅读了很多，我也遇到了同样的问题，这就是我所做的：

• 生成CA证书
• 生成服务器证书
• 创建用户并为该用户生成证书
• 将nat中的出站配置到vpn网络(10.0.0.0/24)，然后应用向导
• 防火墙中的安装create规则溜溜球允许vpn
• 安装openvpn导出插件并下载配置
• 我试过粘度，openvpn客户端和隧道

现在客户端的问题是握手，但我认为问题在于pfsense防火墙，即使我试图连接，控制vpn端口的规则也是0/0。

如果我用nmap扫描端口，我会看到以下内容：

1194/tcp filtered      openvpn
1194/udp open|filtered openvpn

有什么想法吗？

openvpn.log给我看了这个

Dec 21 13:50:55 Firewall openvpn[6124]: OpenVPN 2.3.11 amd64-portbld-freebsd10.3 [SSL (OpenSSL)] [LZO] [MH] [IPv6] built on Jul 19 2016
Dec 21 13:50:55 Firewall openvpn[6124]: library versions: OpenSSL 1.0.1s-freebsd  1 Mar 2016, LZO 2.09
Dec 21 13:50:55 Firewall openvpn[6222]: WARNING: using --duplicate-cn and --client-config-dir together is probably not what you want
Dec 21 13:50:55 Firewall openvpn[6222]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Dec 21 13:50:55 Firewall openvpn[6222]: Control Channel Authentication: using '/var/etc/openvpn/server1.tls-auth' as a OpenVPN static key file
Dec 21 13:50:55 Firewall openvpn[6222]: TUN/TAP device ovpns1 exists previously, keep at program end
Dec 21 13:50:55 Firewall openvpn[6222]: TUN/TAP device /dev/tun1 opened
Dec 21 13:50:55 Firewall openvpn[6222]: ioctl(TUNSIFMODE): Device busy: Device busy (errno=16)
Dec 21 13:50:55 Firewall openvpn[6222]: do_ifconfig, tt->ipv6=1, tt->did_ifconfig_ipv6_setup=0
Dec 21 13:50:55 Firewall openvpn[6222]: /sbin/ifconfig ovpns1 10.0.0.1 10.0.0.2 mtu 1500 netmask 255.255.255.0 up
Dec 21 13:50:55 Firewall openvpn[6222]: /usr/local/sbin/ovpn-linkup ovpns1 1500 1557 10.0.0.1 255.255.255.0 init
Dec 21 13:50:55 Firewall openvpn[6222]: UDPv4 link local (bound): [AF_INET]XX.XXX.XXX.XXX:1194
Dec 21 13:50:55 Firewall openvpn[6222]: UDPv4 link remote: [undef]
Dec 21 13:50:55 Firewall openvpn[6222]: Initialization Sequence Completed

你可以看到一个警告，但我不明白这是什么意思，另一个日志文件filter.log显示了大量的信息，但是我通过vpn，1194，我什么也没有得到，我到底在找什么？对不起，这是我第一次尝试vpn，我不知道该怎么做。

尝试后：

tcpdump -n -e -ttt -i pflog0

在15分钟后，我什么也得不到，尝试openvpn客户端：

tcpdump: WARNING: pflog0: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on pflog0, link-type PFLOG (OpenBSD pflog file), capture size 65535 bytes
^C
0 packets captured
0 packets received by filter
0 packets dropped by kernel

但是，如果用nmap进行端口扫描，我认为：

tcpdump: WARNING: pflog0: no IPv4 address assigned
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on pflog0, link-type PFLOG (OpenBSD pflog file), capture size 65535 bytes
00:00:00.000000 rule 5..16777216/0(match): block in on vmx0: IP8 bad-len 0
00:00:00.002001 rule 5..16777216/0(match): block in on vmx0: IP1 bad-len 0
00:01:09.092480 rule 5..16777216/0(match): block in on vmx0: IP10 bad-len 0
00:00:00.001754 rule 5..16777216/0(match): block in on vmx0: IP12 bad-len 0

8 packets captured
8 packets received by filter
0 packets dropped by kernel

防火墙在1194端口中没有接收到任何数据包，在哪里侦听openvpn服务器，以某种方式测试端口？或者用某种方式将包裹发送到1194端口，看看是否有效？

我检查了配置，我觉得没问题，这是：

dev ovpns1
verb 1
dev-type tun
tun-ipv6
dev-node /dev/tun1
writepid /var/run/openvpn_server1.pid
#user nobody
#group nobody
script-security 3
daemon
keepalive 10 60
ping-timer-rem
persist-tun
persist-key
proto udp
cipher AES-256-CBC
auth SHA256
up /usr/local/sbin/ovpn-linkup
down /usr/local/sbin/ovpn-linkdown
client-connect /usr/local/sbin/openvpn.attributes.sh
client-disconnect /usr/local/sbin/openvpn.attributes.sh
local XXX.XXX.XXX.XXX #public ip
tls-server
server 10.0.0.0 255.255.255.0
client-config-dir /var/etc/openvpn-csc/server1
username-as-common-name
auth-user-pass-verify "/usr/local/sbin/ovpn_auth_verify user 'Local Database' false server1" via-env
tls-verify "/usr/local/sbin/ovpn_auth_verify tls 'Server_CRT' 1"
lport 1194
management /var/etc/openvpn/server1.sock unix
max-clients 2
push "route 192.168.0.0 255.255.255.0"
push "redirect-gateway def1"
client-to-client
ca /var/etc/openvpn/server1.ca 
cert /var/etc/openvpn/server1.cert 
key /var/etc/openvpn/server1.key 
dh /etc/dh-parameters.2048
tls-auth /var/etc/openvpn/server1.tls-auth 0
persist-remote-ip
float
topology subnet

如果执行sockstat \ grep 1194的工作方式类似于工作：

root     openvpn    84783 6  udp4   XXX.XXX.XXX.XXX:1194    *:*

我想我们还在继续，现在在openvpn日志中，当我试图连接一个客户机时，我看到了以下内容：

Jan 14 22:30:16 Firewall openvpn[73374]: MANAGEMENT: Client connected from /var/etc/openvpn/server1.sock
Jan 14 22:30:16 Firewall openvpn[73374]: MANAGEMENT: CMD 'status 2'
Jan 14 22:30:17 Firewall openvpn[73374]: MULTI: REAP range 176 -> 192
Jan 14 22:30:17 Firewall openvpn[73374]: MANAGEMENT: CMD 'quit'
Jan 14 22:30:17 Firewall openvpn[73374]: MANAGEMENT: Client disconnected

在客户端，我看到了这个：

Jan 14 22:31:14: UDPv4 link remote: [AF_INET]xxx.xxx.xxx.xxx:1194
Jan 14 22:32:14: TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
Jan 14 22:32:14: TLS Error: TLS handshake failed
Jan 14 22:32:14: SIGUSR1[soft,tls-error] received, process restarting
Jan 14 22:32:15: UDPv4 link local (bound): [undef]
Jan 14 22:32:15: UDPv4 link remote: [AF_INET]xxx.xxx.xxx.xxx:1194

Answer 1

那么，在与我的服务器提供商交谈，并检查他的网络一切运行良好，他们使用防火墙在我的服务器前面，谢谢大家的帮助！

Answer 2

了解防火墙是否是防火墙的最好方法是查看它的日志。

编辑:我的意思是你应该看看pf日志。pf应该记录它所做的任何拒绝，这可能会确认或拒绝您对它是防火墙的怀疑。我没有使用pfsense，但是查看FreeBSD上的pf日志会是这样的: tcpdump -n -e -ttt -r /var/ log /pflog，或者您可以使用tcpdump -n -e -ttt -i pflog0实时查看它。