Putty connects to ubuntu: network error: connection refused, puttyubuntu

Putty connects to ubuntu: network error: connection refused, puttyubuntu
Cause:

Ubuntu has a bug: a folder sshd is missing in the/var/run/directory.

Solution:

On the command line, enter:

Sudo mkdir/var/run/sshd

Sudo/usr/sbin/sshd

Netstat-nlt

The following log problems are solved:

 

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
Tcp 0 0 127.0.1.1: 53 0.0.0.0: * LISTEN
Tcp 0 0 0.0.0.0: 22 0.0.0.0: * LISTEN
Tcp 0 0 127.0.0.1: 631 0.0.0.0: * LISTEN
Tcp6 0 0: 22: * LISTEN
Tcp6 0 0: 1: 631: * LISTEN

You can see that port 22 has been enabled, and you can use putty to connect to linux to achieve remote access.

From:

Http://blog.sina.com.cn/s/blog_8cc77f5e0102w53x.html