为IPSEC/L2TPVPN安装OpenSwan xl2tpd

Question

我有一个QuickWeb.co.nz托管的VPS，运行Ubuntu12.04 OpenVZ。

我下载并解压缩了OpenSwan，但仍然无法安装：

root@vps:~/openswan-2.6.35# apt-get install openswan xl2tpd ppp 
Reading package lists... Done
Building dependency tree... Done
Package ppp is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Unable to locate package openswan
E: Unable to locate package xl2tpd
E: Package 'ppp' has no installation candidate

我承认我是个新手，我正在学习。谢谢你的耐心和帮助！)

Answer 1

先尝试做apt-get update来更新apt的包列表，然后再试一次