我之前有一个有效的配置，其中的配置文件用于上一个问题
但是，我现在已将其更改为使用服务器模式的以下配置，日志上的一切似乎都很好，但是客户端没有创建任何 tun 接口，所以我没有任何东西可以连接，大概我需要添加或推送一些路由命令，但我现在不知道我需要做什么。我正在发布我所有相关的配置文件
server.conf：
dev tun
server 10.8.117.0 255.255.255.0
ifconfig-pool-persist ipp.txt
tls-server
dh /home/lurscher/keys/dh1024.pem
ca /home/lurscher/keys/ca.crt
cert /home/lurscher/keys/vpnCh8TestServer.crt
key /home/lurscher/keys/vpnCh8TestServer.key
status openvpn-status.log
log openvpn.log
comp-lzo
verb 3
和client.conf：
dev tun
remote my.server.com
tls-client
ca /home/chuckq/keys/ca.crt
cert /home/chuckq/keys/vpnCh8TestClient.crt
key /home/chuckq/keys/vpnCh8TestClient.key
ns-cert-type server
; port 1194
; user nobody
; group nogroup
status openvpn-status.log
log openvpn.log
comp-lzo
verb 3
服务器ifconfig显示一个 tun 设备：
tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet addr:10.8.117.1 P-t-P:10.8.117.2 Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
然而客户ifconfig 没有显示任何tun界面！
$ ifconfig tun0
tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
POINTOPOINT NOARP MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
客户端日志显示：
Tue May 17 23:27:09 2011 OpenVPN 2.1.0 i686-pc-linux-gnu [SSL] [LZO2] [EPOLL] [PKCS11] [MH] [PF_INET6] [eurephia] built on Jul 12 2010
Tue May 17 23:27:09 2011 IMPORTANT: OpenVPN's default port number is now 1194, based on an official port number assignment by IANA. OpenVPN 2.0-beta16 and earlier used 5000 as the default port.
Tue May 17 23:27:09 2011 NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Tue May 17 23:27:09 2011 /usr/bin/openssl-vulnkey -q -b 1024 -m <modulus omitted>
Tue May 17 23:27:09 2011 LZO compression initialized
Tue May 17 23:27:09 2011 Control Channel MTU parms [ L:1542 D:138 EF:38 EB:0 ET:0 EL:0 ]
Tue May 17 23:27:09 2011 TUN/TAP device tun0 opened
Tue May 17 23:27:09 2011 TUN/TAP TX queue length set to 100
Tue May 17 23:27:09 2011 Data Channel MTU parms [ L:1542 D:1450 EF:42 EB:135 ET:0 EL:0 AF:3/1 ]
Tue May 17 23:27:09 2011 Local Options hash (VER=V4): '41690919'
Tue May 17 23:27:09 2011 Expected Remote Options hash (VER=V4): '530fdded'
Tue May 17 23:27:09 2011 Socket Buffers: R=[114688->131072] S=[114688->131072]
Tue May 17 23:27:09 2011 UDPv4 link local (bound): [undef]
Tue May 17 23:27:09 2011 UDPv4 link remote: [AF_INET]192.168.0.101:1194
Tue May 17 23:27:09 2011 TLS: Initial packet from [AF_INET]192.168.0.101:1194, sid=8e8bdc33 f4275407
Tue May 17 23:27:09 2011 VERIFY OK: depth=1, /C=CA/ST=Out/L=There/O=Ubuntu/OU=Home/CN=Ubuntu_CA/name=lurscher/[email protected]
Tue May 17 23:27:09 2011 VERIFY OK: nsCertType=SERVER
Tue May 17 23:27:09 2011 VERIFY OK: depth=0, /C=CA/ST=Out/L=There/O=Ubuntu/OU=Home/CN=vpnCh8TestServer/name=lurscher/[email protected]
Tue May 17 23:27:09 2011 Data Channel Encrypt: Cipher 'BF-CBC' initialized with 128 bit key
Tue May 17 23:27:09 2011 Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue May 17 23:27:09 2011 Data Channel Decrypt: Cipher 'BF-CBC' initialized with 128 bit key
Tue May 17 23:27:09 2011 Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue May 17 23:27:09 2011 Control Channel: TLSv1, cipher TLSv1/SSLv3 DHE-RSA-AES256-SHA, 1024 bit RSA
Tue May 17 23:27:09 2011 [vpnCh8TestServer] Peer Connection Initiated with [AF_INET]192.168.0.101:1194
Tue May 17 23:27:10 2011 Initialization Sequence Completed
客户端状态日志：
OpenVPN STATISTICS
Updated,Tue May 17 23:30:09 2011
TUN/TAP read bytes,0
TUN/TAP write bytes,0
TCP/UDP read bytes,5604
TCP/UDP write bytes,4244
Auth read bytes,0
pre-compress bytes,0
post-compress bytes,0
pre-decompress bytes,0
post-decompress bytes,0
END
服务器日志显示：
Tue May 17 23:18:25 2011 OpenVPN 2.1.0 x86_64-pc-linux-gnu [SSL] [LZO2] [EPOLL] [PKCS11] [MH] [PF_INET6] [eurephia] built on Jul 12 2010
Tue May 17 23:18:25 2011 IMPORTANT: OpenVPN's default port number is now 1194, based on an official port number assignment by IANA. OpenVPN 2.0-beta16 and earlier used 5000 as the default port.
Tue May 17 23:18:25 2011 WARNING: --keepalive option is missing from server config
Tue May 17 23:18:25 2011 NOTE: your local LAN uses the extremely common subnet address 192.168.0.x or 192.168.1.x. Be aware that this might create routing conflicts if you connect to the VPN server from public locations such as internet cafes that use the same subnet.
Tue May 17 23:18:25 2011 NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Tue May 17 23:18:25 2011 Diffie-Hellman initialized with 1024 bit key
Tue May 17 23:18:25 2011 /usr/bin/openssl-vulnkey -q -b 1024 -m <modulus omitted>
Tue May 17 23:18:25 2011 TLS-Auth MTU parms [ L:1542 D:138 EF:38 EB:0 ET:0 EL:0 ]
Tue May 17 23:18:25 2011 ROUTE default_gateway=192.168.0.1
Tue May 17 23:18:25 2011 TUN/TAP device tun0 opened
Tue May 17 23:18:25 2011 TUN/TAP TX queue length set to 100
Tue May 17 23:18:25 2011 /sbin/ifconfig tun0 10.8.117.1 pointopoint 10.8.117.2 mtu 1500
Tue May 17 23:18:25 2011 /sbin/route add -net 10.8.117.0 netmask 255.255.255.0 gw 10.8.117.2
Tue May 17 23:18:25 2011 Data Channel MTU parms [ L:1542 D:1450 EF:42 EB:135 ET:0 EL:0 AF:3/1 ]
Tue May 17 23:18:25 2011 Socket Buffers: R=[126976->131072] S=[126976->131072]
Tue May 17 23:18:25 2011 UDPv4 link local (bound): [undef]
Tue May 17 23:18:25 2011 UDPv4 link remote: [undef]
Tue May 17 23:18:25 2011 MULTI: multi_init called, r=256 v=256
Tue May 17 23:18:25 2011 IFCONFIG POOL: base=10.8.117.4 size=62
Tue May 17 23:18:25 2011 IFCONFIG POOL LIST
Tue May 17 23:18:25 2011 vpnCh8TestClient,10.8.117.4
Tue May 17 23:18:25 2011 Initialization Sequence Completed
Tue May 17 23:27:22 2011 MULTI: multi_create_instance called
Tue May 17 23:27:22 2011 192.168.0.104:1194 Re-using SSL/TLS context
Tue May 17 23:27:22 2011 192.168.0.104:1194 LZO compression initialized
Tue May 17 23:27:22 2011 192.168.0.104:1194 Control Channel MTU parms [ L:1542 D:138 EF:38 EB:0 ET:0 EL:0 ]
Tue May 17 23:27:22 2011 192.168.0.104:1194 Data Channel MTU parms [ L:1542 D:1450 EF:42 EB:135 ET:0 EL:0 AF:3/1 ]
Tue May 17 23:27:22 2011 192.168.0.104:1194 Local Options hash (VER=V4): '530fdded'
Tue May 17 23:27:22 2011 192.168.0.104:1194 Expected Remote Options hash (VER=V4): '41690919'
Tue May 17 23:27:22 2011 192.168.0.104:1194 TLS: Initial packet from [AF_INET]192.168.0.104:1194, sid=8972b565 79323f68
Tue May 17 23:27:22 2011 192.168.0.104:1194 VERIFY OK: depth=1, /C=CA/ST=Out/L=There/O=Ubuntu/OU=Home/CN=Ubuntu_CA/name=lurscher/[email protected]
Tue May 17 23:27:22 2011 192.168.0.104:1194 VERIFY OK: depth=0, /C=CA/ST=Out/L=There/O=Ubuntu/OU=Home/CN=Ubuntu_CA/name=lurscher/[email protected]
Tue May 17 23:27:22 2011 192.168.0.104:1194 Data Channel Encrypt: Cipher 'BF-CBC' initialized with 128 bit key
Tue May 17 23:27:22 2011 192.168.0.104:1194 Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue May 17 23:27:22 2011 192.168.0.104:1194 Data Channel Decrypt: Cipher 'BF-CBC' initialized with 128 bit key
Tue May 17 23:27:22 2011 192.168.0.104:1194 Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue May 17 23:27:22 2011 192.168.0.104:1194 Control Channel: TLSv1, cipher TLSv1/SSLv3 DHE-RSA-AES256-SHA, 1024 bit RSA
Tue May 17 23:27:22 2011 192.168.0.104:1194 [vpnCh8TestClient] Peer Connection Initiated with [AF_INET]192.168.0.104:1194
Tue May 17 23:27:22 2011 vpnCh8TestClient/192.168.0.104:1194 MULTI: Learn: 10.8.117.6 -> vpnCh8TestClient/192.168.0.104:1194
Tue May 17 23:27:22 2011 vpnCh8TestClient/192.168.0.104:1194 MULTI: primary virtual IP for vpnCh8TestClient/192.168.0.104:1194: 10.8.117.6
最后，服务器状态日志：
OpenVPN CLIENT LIST
Updated,Tue May 17 23:36:25 2011
Common Name,Real Address,Bytes Received,Bytes Sent,Connected Since
vpnCh8TestClient,192.168.0.104:1194,4244,5604,Tue May 17 23:27:22 2011
ROUTING TABLE
Virtual Address,Common Name,Real Address,Last Ref
10.8.117.6,vpnCh8TestClient,192.168.0.104:1194,Tue May 17 23:27:22 2011
GLOBAL STATS
Max bcast/mcast queue length,0
END
答案1
在客户端配置中使用：
client
一个辅助指令，旨在简化 OpenVPN 客户端模式的配置。此指令相当于：
pull tls-client
在服务器配置中：
server 10.8.117.0 255.255.255.0
扩展为
mode server
tls-server
ifconfig 10.8.117.1 10.8.0.2
ifconfig-pool 10.8.117.4 10.8.117.251
route 10.8.117.0 255.255.255.0
辅助指令旨在简化 OpenVPN 服务器模式的配置。此指令将设置一个 OpenVPN 服务器，该服务器将为给定网络/网络掩码之外的客户端分配地址。服务器本身将使用给定网络的“.1”地址作为本地 TUN/TAP 接口的服务器端端点。
例如，--server 10.8.0.0 255.255.255.0 扩展如下：
mode server tls-server if dev tun: ifconfig 10.8.0.1 10.8.0.2 ifconfig-pool 10.8.0.4 10.8.0.251 route 10.8.0.0 255.255.255.0 if client-to-client: push "route 10.8.0.0 255.255.255.0" else push "route 10.8.0.1" if dev tap: ifconfig 10.8.0.1 255.255.255.0 ifconfig-pool 10.8.0.2 10.8.0.254 255.255.255.0 push "route-gateway 10.8.0.1"
tls-server因此不需要明确说明。
答案2
您的 server.conf 文件可能缺少一些东西。首先，没有一行将其声明为服务器：
mode server
其次，我必须假设您的客户端本身位于不同的网络上。因此，服务器需要将一些路由推送到客户端，例如：
push "route 10.x.y.z 255.255.255.0"
或类似内容。对可通过 VPN 访问的所有子网重复此行。
第三，您可能需要推送 DNS 服务器、WINS 服务器和域选项，例如
push "dhcp-option DOMAIN my.domain"
push "dhcp-option DNS a.b.c.d"
push "dhcp-option WINS e.f.g.h"
最后，您需要指示服务器将隧道的池地址路由到服务器，否则流量将无法流动，如下所示：
route 10.8.117.0 255.255.255.0