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cd /usr/ports/net/mpd5
make
cd /usr/ports/net/mpd5
在make install之后若出现报错"/usr/share/mk/bsd.kmod.mk", line 12: "can't find kernel source tree",则是因为sys、base库没有安装
解决方法:
running “sysinstall” as root, choosing “Configure”, then “Distributions”, then “src”, then “base” and “sys”.
在 中启用 mpd5 添加如下行
mpd_enable="YES"配置 mpd pptp VPN
复制默认的 mpd.conf 配置文件
cd /usr/local/etc/mpd5/
cp mpd.conf.sample mpd.conf
修改 mpd.conf 文件中的 startup: default: pptp_server: 三块,其它的不要理睬,放在里面不要删除,因为可以通过 default: 标签来调用需要执行的模块,所以不受影响。
以下是这三部分的代码,需要修改的地方见我的中文解释。
startup:
#configure mpd users
set user admin password ### 设置 mpd 的访问帐号及密码,通过 telnet 或 web 访问时需要此帐号
#set user foo1 bar1
#configure the console
set console self 127.0.0.1 5005
set console open
#configure the web server
set web self 0.0.0.0 5006
set web open
#Default configuration is "dialup"
default:
#load dialup
load pptp_server ### 默认调用 pptp_server 模块
pptp_server:
#Mpd as a PPTP server compatible with Microsoft Dial-Up Networking clients.
#Suppose you have a private Office LAN numbered 192.168.1.0/24 and the
#machine running mpd is at 192.168.1.1, and also has an externally visible
#IP address of 1.2.3.4.
#We want to allow a client to connect to 1.2.3.4 from out on the Internet
#via PPTP. We will assign that client the address 192.168.1.50 and proxy-ARP
#for that address, so the virtual PPP link will be numbered 192.168.1.1 local
#and 192.168.1.50 remote. From the client machine's perspective, it will
#appear as if it is actually on the 192.168.1.0/24 network, even though in
#reality it is somewhere far away out on the Internet.
#
#Our DNS server is at 192.168.1.3 and our NBNS (WINS server) is at 192.168.1.4.
#If you don't have an NBNS server, leave that line out.
#Define dynamic IP address pool.
set ippool add pool1 172.16.0.100 172.16.0.199 # 此处是配置vpn客户端分配的ip地址池
#Create clonable bundle template named B
create bundle template B
set iface enable proxy-arp
set iface idle 1800
set iface enable tcpmssfix
set ipcp yes vjcomp
#Specify IP address pool for dynamic assigment.
set ipcp ranges 172.16.0.1/32 ippool pool1 # 此处是配置vpn客户端分配的ip地址的网关
set ipcp dns 218.108.248.200 ### 设置 dns
#set ipcp nbns 192.168.1.4 ###如果你用不到 wins 的话,可以注释掉这块,
#The five lines below enable Microsoft Point-to-Point encryption
#(MPPE) using the ng_mppc(8) netgraph node type.
set bundle enable compression
set ccp yes mppc
set mppc yes e40
set mppc yes e128
set mppc yes stateless
#Create clonable link template named L
create link template L pptp
#Set bundle template to use
set link action bundle B
#Multilink adds some overhead, but gives full 1500 MTU.
set link enable multilink
set link yes acfcomp protocomp
set link no pap chap eap
set link enable chap
#We can use use RADIUS authentication/accounting by including
#another config section with label 'radius'.
#load radius
set link keep-alive 10 60
#We reducing link mtu to avoid GRE packet fragmentation.
set link mtu 1460
#Configure PPTP
set pptp self 202.101.8.18 ###设置 pptp 的监听 ip 地址,也就是你的网卡的 IP 地址
#Allow to accept calls
set link enable incoming
好了,that's all。
启动 mpd5
/usr/local/etc/rc.d/mpd5 start
检查 mpd5 是否已经启动
netstat -a
可以看到类似于这样的输出信息
tcp4 0 0 vpn.server..pptp *.* LISTEN
说明 pptp 已正常启动
添加 VPN 帐号
创建 /usr/local/etc/mpd5/mpd.secret 文件,输入用户名及密码,一行一个
example:
vpn "123456"
test "123456"
然后就可以在 windows 下尝试登录 vpn 服务器了
启用nat
另一个可选项是打开默认的内核配置文件/usr/src/sys/i386/conf,并找到IPFIREWALL选项:
# grep IPFIREWALL /usr/src/sys/i386/conf
第二步:编译并安装带有IPFW的定制内核
首先是复制默认的内核文件:
# cd /usr/src/sys/i386/conf # cp GENERIC IPFWKERNEL
然后增加IPFW支持:
# vi IPFWKERNEL
添加下面的指令:
在options中加入
ident GENERIC #可以更改此文件名为你想要内核文件名
options IPFIREWALL
options IPDIVERT
options IPFIREWALL_DEFAULT_TO_ACCEPT
options IPFIREWALL_VERBOSE
options IPFIREWALL_VERBOSE_LIMIT=100
options IPFIREWALL_FORWARD
options DUMMYNET
保存并关闭文件。编译内核,键入如下的命令:
# cd /usr/src # make buildkernel KERNCONF=IPFWKERNEL
安装新的内核:
# make installkernel KERNCONF=IPFWKERNEL
现在重新启动系统:
执行完毕即完成内核编译
在 /etc/rc.conf 中加入以下行
gateway_enable="YES"
firewall_enable="YES"
firewall_script="/etc/ipfw.rules"
natd_enable="yes"
natd_interface="bge0" #该设置为公网ip所在网卡,下同
启动natd和使gateway_enable生效:
/etc/rc.d/natd start
sysctl net.inet.ip.forwarding=1
在/etc目录下创建文件ipfw.rules
编辑文件内容如下:
#!/bin/sh
IPFW="/sbin/ipfw -q"
$IPFW -f flush
$IPFW add 100 divert natd all from any to any via bge0
$IPFW add 200 allow all from any to any
修改ipfw.rules属性:chmod 755 ipfw.rules
是ipfw规则生效,运行该脚本:/etc/ipfw.rules
执行完毕后,ipfw show查看是否运行了规则
正常情况下,vpn可以正常启用了。并且可以访问外网。
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