can't connect

[qq0800]

carelessly,I removed something,by the command"apt-get remove ppp",and ubuntu can't connect.
So I downloaded ppp from ftp,and installed it.But it still don't work.

[ukripper]

Use this comamnd to install again:

sudo apt-get install ppp

[moep]

carelessly,I removed something,by the command"apt-get remove ppp",and ubuntu can't connect.
So I downloaded ppp from ftp,and installed it.But it still don't work.

If you can no longer access the internet from that particular machine because ppp is missing, you can download the package from a mirror (as you already did), put it on a USB drive and install it using
dpkg -i packagename.

[qq0800]

i have install "ppp",but it still dont work