ssh 连接ubuntu-server配置

1. apt-get install openssh-server

sudo apt-get install openssh-client=1:7.2p2-4ubuntu2.10

sudo apt-get install -f -y openssh-server

#默认安装之后，自动会开启ssh服务的
ps -ef |grep sshd

2. check server-ip

   setting–>Network–>“小齿轮”–>IPv4 Address

   or :
   Terminal–>ifconfig(sudo apt install net-tools)–>“inet addr: xxxxxxxxxx”

3. client connect
   ssh remote_username@remote_ip

4. file transfer

	#copy local file to remote
	$ scp -r local_file/folder remote_username@remote_ip:remote_folder 
	
	#copy remote file to local
	$ scp -r user@remote.server.ip:remote_folder  local_folder