Ubuntu 12.04 上使用 OpenVPN 时出现 DNS 问题

Ubuntu 12.04 上使用 OpenVPN 时出现 DNS 问题

我关注了指导在我的家庭网络上设置 openvpn。

我最初意外下载了 ubuntu 12.10,并且在没有注意到的情况下,我继续按照指南进行操作......

然后我做了一些事情这里:推送“重定向网关 def1” iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE

以启用浏览。

OpenVPN 功能齐全。

我的意思是,我能够远程访问(访问内部服务)并在从外部浏览时掩盖我的 IP。

然后我意识到我想要 ubuntu 12.04,所以我在新安装上遵循了相同的过程。

现在的问题是DNS无法解析。

我注意到下载 openvpn 时会下载 resolvconf,我将其卸载并尝试手动解决此问题。

以下是我的系统中的一些内容:

openvpn 服务器.conf:

mode server
tls-server

local 192.168.1.101 ## ip/hostname of server
port 80 ## default openvpn port
proto udp

#bridging directive
dev tap0 ## If you need multiple tap devices, add them here
up "/etc/openvpn/up.sh br0 tap0 1500"
down "/etc/openvpn/down.sh br0 tap0"

persist-key
persist-tun

#certificates and encryption
ca ca.crt
cert server.crt
key server.key  # This file should be kept secret
dh dh1024.pem
tls-auth ta.key 0 # This file is secret

cipher BF-CBC        # Blowfish (default)
comp-lzo

#DHCP Information
ifconfig-pool-persist ipp.txt
server-bridge 192.168.1.10 255.255.255.0 192.168.1.100 192.168.1.110
push "redirect-gateway def1"
push "dhcp-option DNS 8.8.8.8"
push "dhcp-option DNS 8.8.4.4"


#push "dhcp-option DOMAIN yourdomain.com"
#push "redirect-gateway local def1"
#push "dhcp-option DNS 8.8.8.8"
#push "redirect-gateway def1 bypass-dhcp"
#push "dhcp-option DNS 192.168.1.1"
#push "dhcp-option DNS 8.8.8.8"


max-clients 10 ## set this to the max number of clients that should be connected at a time

#log and security
user nobody
group nogroup
keepalive 10 120
status openvpn-status.log
verb 3

在 /etc/网络/接口:

root@ironman:~# cat /etc/network/interfaces 
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
#auto lo
#iface lo inet loopback

# The primary network interface
#auto eth0
#iface eth0 inet dhcp
#############OPEN VPN SETUP###############
## This is the network bridge declaration

## Start these interfaces on boot
auto lo br0

iface lo inet loopback

iface br0 inet static 
  address 192.168.1.101 
  netmask 255.255.255.0
  gateway 192.168.1.1
  bridge_ports eth0
  nameserver 8.8.8.8
iface eth0 inet manual
  up ip link set $IFACE up promisc on
  down ip link set $IFACE down promisc off
  nameserver 8.8.8.8

root@ironman:~# cat /etc/resolv.conf 
nameserver 8.8.8.8
nameserver 192.168.1.1


root@ironman:~# ping google.com
PING google.com (74.125.239.100) 56(84) bytes of data.
64 bytes from nuq05s01-in-f4.1e100.net (74.125.239.100): icmp_req=1 ttl=55 time=22.6 ms
64 bytes from nuq05s01-in-f4.1e100.net (74.125.239.100): icmp_req=2 ttl=55 time=21.7 ms
64 bytes from nuq05s01-in-f4.1e100.net (74.125.239.100): icmp_req=3 ttl=55 time=22.8 ms

任何帮助,将不胜感激

答案1

这对我有用:http://www.softwarepassion.com/solving-dns-problems-with-openvpn-on-ubuntu-box/

重要的步骤是将以下三行添加到您的客户端 openvpn 配置文件中:

script-security 2
up /etc/openvpn/update-resolv-conf
down /etc/openvpn/update-resolv-conf

另外,还要确保该resolvconf包已安装在客户端上,因为该脚本依赖于它。

它与 openvpn 客户端服务或命令 ( sudo openvpn youropenvpn.conf) 配合使用。

但是,Ubuntu 网络管理器不适用于此配置。到目前为止,这是一个问题:https://bugs.launchpad.net/ubuntu/+source/openvpn/+bug/1211110

答案2

当您重新安装 12.04 时是否忘记了这一步?

echo 1 > /proc/sys/net/ipv4/ip_forward

来源:https://openvpn.net/index.php/open-source/documentation/miscellaneous/88-1xhowto.html

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