= NXHX PPTP 手動設定 =

修改自 PPTP Client Debian HOWTO by James Cameron 26th May 2008
These are instructions for installing PPTP Client on Debian GNU/Linux.

Contents:

 * 安裝 Ubuntu pptp client

apt-get install pptp-linux

 * 手動設定pptp連線
Configuration, by hand

1. obtain from your PPTP Server administrator:

 * the IP address or host name of the server ($SERVER),
 * the name you wish to use to refer to the tunnel ($TUNNEL),
 * the authentication domain name ($DOMAIN),
 * the username you are to use ($USERNAME),
 * the password you are to use ($PASSWORD),
 * whether encryption is required.

基本上要開始之前要對 VPN SERVER 有所了解，最起碼要知道ServerIP, Domain, Username, Password, 最容易告不清楚就是 “加密”與”壓縮”
以 NXHX公司為例
 * $SERVER = 140.110.22.100
 * $TUNNEL = nchc //自己定義就好
 * $DOMAIN = //沒有
 * $USERNAME = ….
 * $PASSWORD = ….
 * 以 pap 認証，允許不加密資料…

2. 建立 or 修改 /etc/ppp/options.pptp:

預設是 lock noauth nobsdcomp nodeflate refuse-pap refuse-chap refuse-eap refuse mschap
，而NXHX因為要用到PAP，所以把 refuse-pap 給住解掉。
{{{
#!text
# We won’t do PAP, EAP, CHAP, or MSCHAP, but we will accept MSCHAP-V2
# (you may need to remove these refusals if the server is not using MPPE)
#refuse-pap
refuse-eap
refuse-chap
refuse-mschap
….
}}}
3. 建立 or 修改 /etc/ppp/pap-secrets: //因為我們用的是pap認証，所以要改這個檔案，也時候也可能要改的檔案是 chap-secrets…所以要看你的認証方式而定

$USERNAME PPTP $PASSWORD *

4. 建立 /etc/ppp/peers/$TUNNEL:
{{{
vi /etc/ppp/peers/nchc
pty “pptp 140.110.22.100 –nolaunchpppd”
name $USERNAME
remotename PPTP
file /etc/ppp/options.pptp
ipparam nchc
}}}
Note: if you do not need MPPE support, then remove the require-mppe-128 option from this file and /etc/ppp/options.pptp.
// 原本範例有 require-mppe-128 因為我們不需要 所以拿掉了

5. 用 pon 來建立連線吧:
{{{
pon nchc

ifconfig 可以找到 ppp0
ppp0 Link encap:Point-to-Point Protocol
inet addr:140.110.35.193 P-t-P:140.110.35.192 Mask:….
}}}
6. 斷線:
{{{
poff nchc
}}}
7. to set up routing: //這邊希望連線後預設路由就是VPN出去
{{{
route add default gw 140.110.35.192
}}}
or
{{{
vi /etc/ppp/ip-up.d/nchc

#!/bin/sh
if [ "${PPP_IPPARAM}" = "nchc" ]; then
    /sbin/route add -net 140.x.0.0/16   dev ${IFNAME}
    /sbin/route add -net 2xx.1xx.1xx.0/24 dev ${IFNAME}
fi
}}}
8. 在NXHX還要改 DNS 140.110.16.1

9. 開機時啟動 //edit 2010/09/29
{{{
vi /etc/network/interfaces
auto ppp0
iface ppp0 inet ppp
provider nchc
}}}

這樣就大功告成啦！

10 . option 需要視情況調整
{{{
#text
passive
connect-delay 10000
#lcp-echo-interval 30
#lcp-echo-failure 4
避免斷線…
}}}

11. 最後用sshfs 掛載遠端目錄
{{{
sshfs 主機:遠端目錄/ 本機目錄/
fusermount 本機目錄/
}}}

本篇網址：[http://www.libthomas.org/~thomas/wp/?p=574]

更多細節參考

http://pptpclient.sourceforge.net/howto-debian.phtml