got disconnected on the remote linux server

my project on the remote server stopped working after i did the following

1> install putty
2> c开发者_C百科onnect to the remote server using FTP details 
3> then in the root server installed pear using 
    $ sudo apt-get install php-pear
4> then i changed the path in php.ini 

now the server has stopped working ... why? what happened? HELP!!

I believe it might be superuser question. Anyway, we need more details.

Assuming the server is running linux (/unix), check the logs - they will probably tell you why the server fails to start. Check both syslog (/var/log/syslog) and your server software specific log.