Fedora14使用pptp客户端
虽然Fedora 自带的network manager已经带有了vpn的设置功能。但是使用起来非常不方便，经常出现无法连接的情况，初次设置的时候也很容易出错。
最近在网上看到一个比较好用的pptp vpn的客户端设置软件，很顺利的连接上实验室的vpn服务器，特此向大家推荐。
软件的名称叫pptpconfig。安装方法：
用root身份进入命令行，su
安装最新版本的pptp，rpm -Uvh /yum/stable/fc6/pptp-release-current.noarch.rpm
安装pptpconfig，yum –enablerepo=pptp-stable install pptpconfig
在命令行上运行pptpconfig，设置的时候注意一下，在routing的那一项目里面选择All to tunnel，这样就可以把所有的流量都通过vpn。默认的选项是没有使用vpn的。
只是要注意的是要把miscellaneous标签下的选项给都选择上，否则会出现输出错误。
其中server标签中的Server为vpn服务器的地址或域名，
Username,Password为登录vpn服务器的用户名和密码。
点击Routing标签, 选择All to Tunnel
点击DNS标签，去掉Automatic, 并空置下面两栏不填
点击 Encryption标签，去掉所有项修改配置文件：
在终端执行sudo gedit /etc/ppp/options.pptp
用#号注释掉下面两句refuse-chap
refuse-mschap
并将Encrption以下的行全部注释掉
这样的话就能很方便的使用pptp了。
网上有人表示会出现乱码的情况，这个时候只需要安装字体就可以解决
yum install xorg-x11-fonts-ISO8859*
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/howto-diagnosis.phtml
/documentation.phtml
/linux/debian/debian_learning/ch08s16.html
1.安装pptp客户端
apt-get install pptp-linux
2.修改pptp客户端密码文件
pap认证pap-secrets
chap认证chap-secrets
中添加
"coffee777" "*" "123456" "*"
3.pptp客户端连接
/etc/ppp/peers下添加文件vpn
name coffee777
pty "pptp 192.168.20.86 --nolaunchpppd"
4.如果连接的VPN服务器上安装有PPTP服务端，去掉/etc/ppp/options中关键字auth
详细配置参数
#########################################
# example configuration for a dialup connection authenticated with PAP or CHAP
#
# This is the default configuration used by pon(1) and poff(1).
# See the manual page pppd(8) for information on all the options.
# MUST CHANGE: replace myusername@realm with the PPP login name given to
# your by your provider.
# There should be a matching entry with the password in /etc/ppp/pap-secrets
# and/or /etc/ppp/chap-secrets.
user "myusername@realm"
# MUST CHANGE: replace ******** with the phone number of your provider.
# The /etc/chatscripts/pap chat script may be modified to change the
# modem initialization string.
connect "/usr/sbin/chat -v -f /etc/chatscripts/pap -T ********"
# Serial device to which the modem is connected.
/dev/modem
# Speed of the serial line.
115200
# Assumes that your IP address is allocated dynamically by the ISP.
noipdefault
# Try to get the name server addresses from the ISP.
usepeerdns
# Use this connection as the default route.
defaultroute
# Makes pppd "dial again" when the connection is lost.
persist
# Do not ask the remote to authenticate.
noauth
#########################################
其中
name 为用户名
192.168.20.86为服务器ip
5.pptp客户端命令
连接
pon vpn
断开
poff vpn
前台运行pon vpn debug dump logfd 2 nodetach
后台运行并生成日志
nohup pon vpn debug dump logfd 2 nodetach &
连接成功，ifconfig显示ppp获取的ip
==================================================
1.
Linux下可以设置:
pptp客户端密码文件中添加：
"coffee777" "pptpd" "123456" "*"
pptp客户端连接文件vpn中添加：
remotename pptpd
pptp为服务器端pptp配置文件pptpd-options中name对应的pptp名称
==================================================
错误提示：
1.
peer refused to authenticate: terminating link
peer refused to authenticate
认证方式不对使用pap-secrets或chap-secrets文件认证
2.Warning - secret file /etc/ppp/pap-secrets has world and/or group access
设置/etc/ppp/pap-secrets权限：chmod 600 /etc/ppp/pap-secrets
3.先提示PAP authentication succeeded，后提示peer refused to authenticate
去掉/etc/ppp/options中关键字auth
日志如下：
pppd options in effect:
debug # (from command line)
nodetach # (from command line)
logfd 2 # (from command line)
dump # (from command line)
auth # (from /etc/ppp/options)
name coffee777 # (from /etc/ppp/peers/pptp)
# (from /etc/ppp/options)
pty pptp 219.87.146.170 --nolaunchpppd # (from /etc/ppp/peers/pptp)
crtscts # (from /etc/ppp/options)
# (from /etc/ppp/options)
asyncmap 0 # (from /etc/ppp/options)
lcp-echo-failure 4 # (from /etc/ppp/options)
lcp-echo-interval 30 # (from /etc/ppp/options)
hide-password # (from /etc/ppp/options)
proxyarp # (from /etc/ppp/options)
noipx # (from /etc/ppp/options)
using channel 10052
Using interface ppp33
Connect: ppp33 /dev/pts/34
sent [LCP ConfReq id=0x1 ]
rcvd [LCP ConfReq id=0x0 < 17 04 33 80>]
sent [LCP ConfRej id=0x0 < 17 04 33 80>]
rcvd [LCP ConfAck id=0x1 ]
rcvd [LCP ConfReq id=0x1 ]
sent [LCP ConfNak id=0x1 ]
rcvd [LCP ConfReq id=0x2 ]
sent [LCP ConfAck id=0x2 ]
sent [LCP EchoReq id=0x0 magic=0xfd1e5d8b]
sent [PAP AuthReq id=0x1 user="coffee777" password=]
rcvd [LCP EchoRep id=0x0 magic=0x71b13c88]
rcvd [PAP AuthAck id=0x1 ""]
PAP authentication succeeded
rcvd [LCP ConfReq id=0x4 < 17 04 33 80>]
sent [LCP ConfReq id=0x2 ]
sent [LCP ConfRej id=0x4 < 17 04 33 80>]
rcvd [LCP ConfReq id=0x5 ]
sent [LCP ConfNak id=0x5 ]
rcvd [LCP ConfReq id=0x6 ]
sent [LCP ConfAck id=0x6 ]
sent [LCP ConfReq id=0x2 ]
rcvd [LCP ConfRej id=0x2 ]
sent [LCP ConfReq id=0x3 ]
rcvd [LCP ConfAck id=0x3 ]
sent [LCP EchoReq id=0x0 magic=0x1c12d257]
peer refused to authenticate: terminating link
sent [LCP TermReq id=0x4 "peer refused to authenticate"]
rcvd [LCP EchoRep id=0x0 magic=0x767a3d44]
rcvd [LCP TermAck id=0x4 "peer refused to authenticate"]
Connection terminated.
Waiting for 1 child processes...
script pptp 219.87.146.170 --nolaunchpppd, pid 13347
Script pptp 219.87.146.170 --nolaunchpppd finished (pid 13347), status = 0x0
==================================================
--------------------------------------------------------
linux pptp客户端登陆windows pptp服务器：
---------------------------------------------------------
pppd options in effect:
debug # (from command line)
nodetach # (from command line)
logfd 2 # (from command line)
dump # (from command line)
name coffee777 # (from /etc/ppp/peers/vpn)
# (from /etc/ppp/options)
pty pptp 192.168.20.86 --nolaunchpppd # (from /etc/ppp/peers/vpn)
using channel 27
Using interface ppp0
Connect: ppp0 /dev/pts/1
sent [LCP ConfReq id=0x1 ]
rcvd [LCP ConfReq id=0x1 ]
sent [LCP ConfAck id=0x1 ]
rcvd [LCP ConfAck id=0x1 ]
sent [PAP AuthReq id=0x1 user="coffee777" password=]
sent [PAP AuthReq id=0x2 user="coffee777" password=]
sent [PAP AuthReq id=0x3 user="coffee777" password=]
sent [PAP AuthReq id=0x4 user="coffee777" password=]
rcvd [PAP AuthAck id=0x1 ""]
PAP authentication succeeded
sent [CCP ConfReq id=0x1 ]
sent [IPCP ConfReq id=0x1 ]
rcvd [PAP AuthAck id=0x2 ""]
rcvd [PAP AuthAck id=0x3 ""]
rcvd [PAP AuthAck id=0x4 ""]
rcvd [CCP ConfReq id=0x1 ]
sent [CCP ConfAck id=0x1 ]
rcvd [IPCP ConfReq id=0x1 ]
sent [IPCP ConfAck id=0x1 ]
rcvd [CCP ConfRej id=0x1 ]
sent [CCP ConfReq id=0x2 ]
rcvd [IPCP ConfNak id=0x1 ]
sent [IPCP ConfReq id=0x2 ]
rcvd [CCP ConfAck id=0x2 ]
Deflate (15) compression enabled
rcvd [IPCP ConfAck id=0x2 ]
local IP address 172.16.0.2
remote IP address 172.16.0.1
Script /etc/ppp/ip-up started (pid 6774)
Script /etc/ppp/ip-up finished (pid 6774), status = 0x1
--------------------------------------------------------
linux pptp客户端登陆windows pptp服务器：
---------------------------------------------------------
pppd options in effect:
debug # (from command line)
nodetach # (from command line)
logfd 2 # (from command line)
dump # (from command line)
name coffee777 # (from /etc/ppp/peers/vpn)
# (from /etc/ppp/options)
pty pptp 219.87.146.170 --nolaunchpppd # (from /etc/ppp/peers/vpn)
using channel 18
Using interface ppp0
Connect: ppp0 /dev/pts/1
sent [LCP ConfReq id=0x1 ]
sent [LCP ConfReq id=0x1 ]
rcvd [LCP ConfAck id=0x1 ]
rcvd [LCP ConfReq id=0x1 < 17 04 32 d2>]
sent [LCP ConfRej id=0x1 < 17 04 32 d2>]
rcvd [LCP ConfReq id=0x2 ]
sent [LCP ConfNak id=0x2 ]
rcvd [LCP ConfReq id=0x3 ]
sent [LCP ConfAck id=0x3 ]
sent [PAP AuthReq id=0x1 user="coffee777" password=]
rcvd [PAP AuthAck id=0x1 ""]
PAP authentication succeeded
sent [CCP ConfReq id=0x1 ]
sent [IPCP ConfReq id=0x1 ]
rcvd [CCP ConfReq id=0x5 ]
sent [CCP ConfRej id=0x5 ]
rcvd [IPCP ConfReq id=0x6 ]
sent [IPCP ConfAck id=0x6 ]
rcvd [CCP ConfRej id=0x1 ]
sent [CCP ConfReq id=0x2]
rcvd [IPCP ConfRej id=0x1 ]
sent [IPCP ConfReq id=0x2 ]
rcvd [CCP TermReq id=0x7"`\37777777604\001W\000sent [CCP TermAck id=0x7]
rcvd [IPCP ConfNak id=0x2 ]
sent [IPCP ConfReq id=0x3 ]
rcvd [IPCP ConfAck id=0x3 ]
local IP address 172.0.0.49
remote IP address 172.0.0.9
Script /etc/ppp/ip-up started (pid 6594)
Script /etc/ppp/ip-up finished (pid 6594), status = 0x1
sent [CCP ConfReq id=0x2]
rcvd [CCP TermAck id=0x2]
sent [CCP TermReq id=0x3"No compression negotiated"]
rcvd [CCP TermAck id=0x3"No compression negotiated"]
