Linux下VPN服务器的搭建(2)

[root@localhost pptpd-1.3.4]# make install
for d in plugins; do make -C $d all; done
make[1]: Entering directory `/root/pptpd-1.3.4/plugins'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory `/root/pptpd-1.3.4/plugins'
make[1]: Entering directory `/root/pptpd-1.3.4'
for d in plugins; do make -w -C $d prefix=/usr/local DESTDIR= install; done
make[2]: Entering directory `/root/pptpd-1.3.4/plugins'
install -o root -d /usr/local/lib/pptpd
install -o root pptpd-logwtmp.so /usr/local/lib/pptpd
make[2]: Leaving directory `/root/pptpd-1.3.4/plugins'
test -z "/usr/local/sbin" || mkdir -p -- "/usr/local/sbin"
/usr/bin/install -c 'pptpd' '/usr/local/sbin/pptpd'
/usr/bin/install -c 'pptpctrl' '/usr/local/sbin/pptpctrl'
/usr/bin/install -c 'bcrelay' '/usr/local/sbin/bcrelay'
test -z "/usr/local/share/man/man5" || mkdir -p -- "/usr/local/share/man/man5"
/usr/bin/install -c -m 644 './pptpd.conf.5' '/usr/local/share/man/man5/pptpd.conf.5'
test -z "/usr/local/share/man/man8" || mkdir -p -- "/usr/local/share/man/man8"
/usr/bin/install -c -m 644 './pptpctrl.8' '/usr/local/share/man/man8/pptpctrl.8'
/usr/bin/install -c -m 644 './pptpd.8' '/usr/local/share/man/man8/pptpd.8'
make[1]: Leaving directory `/root/pptpd-1.3.4'

[root@localhost ~]# find / |grep pptpd.conf （查找配置文件）
/root/pptpd-1.3.4/pptpd.conf.5
/root/pptpd-1.3.4/debian/pptpd.conf
/root/pptpd-1.3.4/samples/pptpd.conf
/usr/local/share/man/man5/pptpd.conf.5
[root@localhost ~]# find / |grep options.pptp
/root/pptpd-1.3.4/samples/options.pptpd

[root@localhost ~]# cp /root/pptpd-1.3.4/samples/pptpd.conf /etc/ppp/ （复制配置文件

到/etc/ppp目录下）
[root@localhost ~]# cp /root/pptpd-1.3.4/samples/options.pptpd /etc/ppp/
[root@localhost ~]# cat /etc/ppp/pptpd.conf （主配置文件）
###############################################################################
# $Id: pptpd.conf,v 1.10 2006/09/04 23:30:57 quozl Exp $
#
# Sample Poptop configuration file /etc/pptpd.conf
#
# Changes are effective when pptpd is restarted.
###############################################################################

# TAG: ppp
#       Path to the pppd program, default '/usr/sbin/pppd' on Linux
#
ppp /usr/sbin/pppd （把前面的#号删除掉）

# TAG: option
#       Specifies the location of the PPP options file.
#       By default PPP looks in '/etc/ppp/options'
#
option /etc/ppp/options.pptpd

# TAG: debug
#       Turns on (more) debugging to syslog
#
debug   （把前面的#号删除掉）

# TAG: stimeout
#       Specifies timeout (in seconds) on starting ctrl connection
#
# stimeout 10

# TAG: noipparam
#       Suppress the passing of the client's IP address to PPP, which is
#       done by default otherwise.
#
#noipparam

# TAG: logwtmp
#       Use wtmp(5) to record client connections and disconnections.
#
logwtmp （把前面的#号删除掉）

# TAG: bcrelay <if>
#       Turns on broadcast relay to clients from interface <if>
#
#bcrelay eth1

# TAG: delegate
#       Delegates the allocation of client IP addresses to pppd.
#
#       Without this option, which is the default, pptpd manages the list of
#       IP addresses for clients and passes the next free address to pppd.
#       With this option, pptpd does not pass an address, and so pppd may use
#       radius or chap-secrets to allocate an address.
#
#delegate

# TAG: connections
#       Limits the number of client connections that may be accepted.
#
#       If pptpd is allocating IP addresses (e.g. delegate is not
#       used) then the number of connections is also limited by the
#       remoteip option. The default is 100.
#connections 100

# TAG: localip
# TAG: remoteip
#       Specifies the local and remote IP address ranges.
#
#       These options are ignored if delegate option is set.
#
#       Any addresses work as long as the local machine takes care of the
#       routing. But if you want to use MS-Windows networking, you should
#       use IP addresses out of the LAN address space and use the proxyarp
#       option in the pppd options file, or run bcrelay.
#
#       You can specify single IP addresses seperated by commas or you can
#       specify ranges, or both. For example:
#
#               192.168.0.234,192.168.0.245-249,192.168.0.254
#
#       IMPORTANT RESTRICTIONS:
#
#       1. No spaces are permitted between commas or within addresses.
#
#       2. If you give more IP addresses than the value of connections,
#          it will start at the beginning of the list and go until it
#          gets connections IPs. Others will be ignored.
#
#       3. No shortcuts in ranges! ie. 234-8 does not mean 234 to 238,
#          you must type 234-238 if you mean this.
#
#       4. If you give a single localIP, that's ok - all local IPs will
#          be set to the given one. You MUST still give at least one remote
#          IP for each simultaneous client.
#
# (Recommended)
localip 192.168.0.200 （填写VPN外网卡的IP地址）
remoteip 192.168.1.100-200 （填写给客户端分配的IP地址范围）
# or
#localip 192.168.0.234-238,192.168.0.245
#remoteip 192.168.1.234-238,192.168.1.245
[root@localhost ~]# cat /etc/ppp/chap-secrets

# client        server secret                  IP addresses
yang （用户名）         localhost（VPN服务器的主机名）       123（密码）       *（表示所有IP

地址都可以拨号）

[root@localhost ~]# cat /etc/ppp/options.pptpd
###############################################################################
# $Id: options.pptpd,v 1.11 2005/12/29 01:21:09 quozl Exp $
#
# Sample Poptop PPP options file /etc/ppp/options.pptpd
# Options used by PPP when a connection arrives from a client.
# This file is pointed to by /etc/pptpd.conf option keyword.
# Changes are effective on the next connection. See "man pppd".
#
# You are expected to change this file to suit your system. As
# packaged, it requires PPP 2.4.2 and the kernel MPPE module.
###############################################################################

# Authentication

# Name of the local system for authentication purposes
# (must match the second field in /etc/ppp/chap-secrets entries)
name localhost （VPN服务器的主机名）

# Strip the domain prefix from the username before authentication.
# (applies if you use pppd with chapms-strip-domain patch)
#chapms-strip-domain

# Encryption
# (There have been multiple versions of PPP with encryption support,
# choose with of the following sections you will use.)

# BSD licensed ppp-2.4.2 upstream with MPPE only, kernel module ppp_mppe.o
# {{{
refuse-pap （拒绝PAP，CHAP，MSCHAP方式的连接）
refuse-chap
refuse-mschap
# Require the peer to authenticate itself using MS-CHAPv2 [Microsoft
# Challenge Handshake Authentication Protocol, Version 2] authentication.
require-mschap-v2 （允许mschap-v2和mppe-128方式的连接）
# Require MPPE 128-bit encryption
# (note that MPPE requires the use of MSCHAP-V2 during authentication)
require-mppe-128
# }}}

# OpenSSL licensed ppp-2.4.1 fork with MPPE only, kernel module mppe.o
# {{{
#-chap
#-chapms
# Require the peer to authenticate itself using MS-CHAPv2 [Microsoft
# Challenge Handshake Authentication Protocol, Version 2] authentication.
#+chapms-v2
# Require MPPE encryption
# (note that MPPE requires the use of MSCHAP-V2 during authentication)
#mppe-40        # enable either 40-bit or 128-bit, not both
#mppe-128
#mppe-stateless
# }}}

# Network and Routing

# If pppd is acting as a server for Microsoft Windows clients, this
# option allows pppd to supply one or two DNS (Domain Name Server)
# addresses to the clients. The first instance of this option
# specifies the primary DNS address; the second instance (if given)
# specifies the secondary DNS address.
#ms-dns 10.0.0.1
#ms-dns 10.0.0.2

# If pppd is acting as a server for Microsoft Windows or "Samba"
# clients, this option allows pppd to supply one or two WINS (Windows
# Internet Name Services) server addresses to the clients. The first
# instance of this option specifies the primary WINS address; the
# second instance (if given) specifies the secondary WINS address.
#ms-wins 10.0.0.3
#ms-wins 10.0.0.4

# Add an entry to this system's ARP [Address Resolution Protocol]
# table with the IP address of the peer and the Ethernet address of this
# system. This will have the effect of making the peer appear to other
# systems to be on the local ethernet.
# (you do not need this if your PPTP server is responsible for routing
# packets to the clients -- James Cameron)
proxyarp （启用VPN服务器的代理arp功能）

# Normally pptpd passes the IP address to pppd, but if pptpd has been
# given the delegate option in pptpd.conf or the --delegate command line
# option, then pppd will use chap-secrets or radius to allocate the
# client IP address. The default local IP address used at the server
# end is often the same as the address of the server. To override this,
# specify the local IP address here.
# (you must not use this unless you have used the delegate option)
#10.8.0.100

# Logging

# Enable connection debugging facilities.
# (see your syslog configuration for where pppd sends to)
debug （去掉前面的#号）

# Print out all the option values which have been set.
# (often requested by mailing list to verify options)
dump （去掉前面的#号）

# Miscellaneous

# Create a UUCP-style lock file for the pseudo-tty to ensure exclusive
# access.
lock

# Disable BSD-Compress compression
nobsdcomp

# Disable Van Jacobson compression
# (needed on some networks with Windows 9x/ME/XP clients, see posting to
# poptop-server on 14th April 2005 by Pawel Pokrywka and followups,
# )
novj
novjccomp

# turn off logging to stderr, since this may be redirected to pptpd,
# which may trigger a loopback
nologfd

# put plugins here
# (putting them higher up may cause them to sent messages to the pty)

[root@localhost ~]# echo 1 >/proc/sys/net/ipv4/ip_forward （开启系统的路由功能）
[root@localhost ~]# cd /usr/local/sbin （启动VPN服务）
[root@localhost sbin]# ls
bcrelay pptpctrl pptpd
[root@localhost sbin]# ./pptpd
[root@localhost sbin]# netstat -ntpl |grep 1723 （启动成功）
tcp        0      0 0.0.0.0:1723                0.0.0.0:*                   LISTEN     

2585/pptpd

[root@localhost sbin]# ps -ef |grep pptpd （停止VPN服务）
root      2585     1 0 06:57 ?        00:00:00 ./pptpd
root      2624 2556 0 07:02 pts/0    00:00:00 grep pptpd
[root@localhost sbin]# kill -9 2585
[root@localhost sbin]# netstat -ntpl |grep 1723 （停止成功）
[root@localhost sbin]# ls
bcrelay pptpctrl pptpd
[root@localhost sbin]# ./pptpd