Remote linux login through sftp/SSH in Ubuntu

SSH remote logon to linux

The procedure is as follows:

1. Install openssh-server in the new computer that requires remote access. This computer is a remote computer and your current computer is a local computer. If you use Ubuntu or other Linux versions, you have installed software that connects to a remote computer.

2. Remote computer software installation is complete. Enter:

Ssh username @ address

Here, username is the account name of the remote computer, and address is the IP address or domain name of the remote computer.

On weekdays, you want to log on to 192.168.1.2 with keir. You can use:

Sssh keir@192.168.1.13

If you do not know the IP address of the remote computer, you can click Network Monitor on the remote computer and select "connection information" to view the IP address information.

3. the first connection may prompt "the authenticity of the host can't be established ". It does not matter. Answer yes to connect and enter the password.

4. If you log on to a standard Shell session, the command line prompt is "user name @ remote computer name ".

To run a graphics program through SSH, you can use:

Ssh-X username @ address

After the connection, enter the program name. For example, start gedit and enter gedit. In addition, even if the program appears on your computer, it still runs on a remote computer. If you start OpenOffice or other complex graphics programs, there may be a delay of some time.

Another SSH connection is used to transmit files. The sftp command can implement this function. Using sftp to connect to a remote computer is the same as logging on to an ftp server. You can also use sftp in Nautilus and enter sftp: // address in the address bar of Nautilus. The system will prompt the user name and password. After the connection is complete, you can copy/delete files in Nautilus.

Sftp remote logon to linux

The syntax in Ubuntu 10.04 is as follows:

Sftp [-1Cv] [-B buffer_size] [-B batchfile] [-F ssh_config] [-o ssh_option] [-P sftp_server_path] [-R num_requests]

[-S program] [-s subsystem | sftp_server] host

Sftp [user @] host [: file...]

Sftp [user @] host [: dir [/]

Sftp-B batchfile [user @] host

The syntax in Ubuntu 10.10 is as follows:

Sftp [-1246 Cpqrv] [-B buffer_size] [-B batchfile] [-c cipher] [-D sftp_server_path] [-F ssh_config] [-I identity_file]

[-O ssh_option] [-P port] [-R num_requests] [-S program] [-s subsystem | sftp_server] host

Sftp [user @] host [: file...]

Sftp [user @] host [: dir [/]

Sftp-B batchfile [user @] host

The following is an example of www.111cn.net:

Login (after successful logon, the command line prompt will change to "sftp> ")

Sftp chen@100.130.100.99 # remotely log on to the 100.130.100.99 host as a chen user, the default port is 22

Sftp-o Port = 222 chen@100.130.100.99 # specify the SSH Port number to remotely log on to the host

Sftp-o Port = 222 chen@100.130.100.99:/home/chen/version/# specify the SSH Port number to remotely log on to the host and switch to the/home/chen/version/Directory

Sftp-P 222 chen@100.130.100.99 # specify the SSH port number to remotely log on to the host (this method can only be used in Ubuntu 10.10)

Note: You can run the following command only after logging on to the remote host.

Interactive command:

Upload

Put new.txt/home/chen/Logs: upload the new.txt file under the current directory to the/home/chen/directory of the remote host.

Download

Get/home/chen/new.txt # Download the/home/chen/new.txt file of the remote host to the local directory

Get/home/chen/new.txt/home/zhao/# Download the/home/chen/new.txt file of the remote host to the local/home/zhao/directory.

Remote command:

Switch Directory

Cd pro # switch to the pro Directory

Change permissions

Chmod 755 my-shell.sh # change my-shell.sh file permissions to 755

View disk usage

Df-h # View disk usage

List directory content

Ls-l # Display files and directories in a detailed list

Create directory

Mkdir newdir # Create a newdir directory in the current directory

Display the complete path of the current directory

Pwd # display the complete path of the current directory

Rename www.111cn.net

Rename my-shell.sh new-shell.sh # rename my-shell.sh files to new-shell.sh

Delete an object

Rm new-shell.sh # delete new-shell.sh files

Delete empty directory

Rmdir pro # delete empty directory pro

Create link

Ln abc.txt abc. ln creating a link file abc. ln for abc.txt

Local Command: (local commands generally add l before the command to represent local)

Switch Directory

LCD pro # switch the local directory to the pro Directory

List directory content

Lls-l # Display Local files and directories in Detail List

Create directory

Lmkdir newdir # Create a newdir directory in the current local directory

Display the complete path of the current directory

Lpwd # display the complete path of the local current directory

Execute any local command

! Date # run the command using the local shell ,! It can then be a command that can be recognized by any local machine

! # Switch to the local shell to execute other commands. To exit the local shell, run exit to return to the remote environment.

Exit www.111cn.net:

Bye # exit sftp

Exit # Same as above

Quit # Same as above