??????????VPS????Getting Started With Linode??????????????????VPN?????????????????????/etc/apt/sources.list?????”##universe repositories”??????????????????????????????sudo???root?????????????????
## main & restricted repositories deb http://us.archive.ubuntu.com/ubuntu/ karmic main restricted deb-src http://us.archive.ubuntu.com/ubuntu/ karmic main restricted deb http://security.ubuntu.com/ubuntu karmic-security main restricted deb-src http://security.ubuntu.com/ubuntu karmic-security main restricted ## universe repositories deb http://us.archive.ubuntu.com/ubuntu/ karmic universe deb-src http://us.archive.ubuntu.com/ubuntu/ karmic universe deb http://us.archive.ubuntu.com/ubuntu/ karmic-updates universe deb-src http://us.archive.ubuntu.com/ubuntu/ karmic-updates universe deb http://security.ubuntu.com/ubuntu karmic-security universe deb-src http://security.ubuntu.com/ubuntu karmic-security universe
??????????????????
apt-get update
??????????VPN Server????????pptp(VPN ?????),???????????????????????
apt-get install pptpd
pptpd????????/etc/pptpd.conf?????????????????????(??????).??????ip??????
localip 192.168.7.1 remoteip 192.168.0.2-254
???/etc/ppp/chap-secrets?????VPN??????????,???????
username pptpd password *
?????????VPN???????????????????DNS. ??/etc/ppp/options???ms-dns????????DNS.???????Google ?????Public DNS,????????
ms-dns 8.8.8.8 ms-dns 209.244.0.3 ms-dns 208.67.222.222 ms-dns 8.8.4.4
??/etc/sysctl.conf?????”net.ipv4.ip_forward=1″????????????
net.ipv4.ip_forward=1
?????????????
sysctl -p
??pptpd??
/etc/init.d/pptpd restart
????iptables??
/sbin/iptables -t nat -A POSTROUTING -s 192.168.7.0/255.255.255.0 -j SNAT --to-source `ifconfig | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk 'NR==1 { print $1}'`
OK,?????