TWI679579B - Remote login method for server subsystem and remote login system - Google Patents

Abstract

A remote login server subsystem method includes: issuing an instruction from a user terminal to a controller through a network; the controller determining whether the instruction issued by the user terminal conforms to a preset format; and when the instruction issued by the user terminal conforms to the preset format When the serial port debug program is executed, the controller will enable the data transmission channel between the controller and the server subsystem. Thus, the user terminal can remotely log in to the server subsystem through the controller of the server to manage the server subsystem.

Description

Remote login server subsystem method and remote login system

The invention relates to a remote login server subsystem method and a remote login system, in particular to a remote login server subsystem method of a substrate management controller and a remote login system.

The main architecture of a traditional server is a host system and a baseboard management controller, and the baseboard management controller is mainly responsible for monitoring the host system. When the baseboard management controller is abnormal and needs to be debugged, usually the system administrator will check the operating status of the firmware of the baseboard management controller through the debug serial port, and analyze the cause of the abnormality. With the popularization of intelligence, more and more manufacturers will integrate many new intelligent subsystems on the server, such as intelligent network cards, to facilitate better management and fault location. Therefore, the system administrator is bound to need to remotely log in to the subsystem on the server in order to manage the subsystem on the server. In view of this, there is indeed a need for a method that allows a system administrator to simply remotely log in to a subsystem on a server.

An embodiment of the present invention provides a remote login server subsystem method and a remote login system, so that a system administrator can easily log in to a subsystem on the server for management.

An embodiment of the present invention provides a remote login server subsystem method, including: transmitting an instruction from a user terminal to a controller through a network; using the controller to determine whether the instruction transmitted by the user terminal conforms to a preset format; when the user When the command transmitted by the terminal conforms to the preset format, the controller executes a serial port debug program (minicom); when the serial port debug program is executed, the data transmission channel between the controller and the server subsystem is enabled, For the user terminal to log in to the server subsystem.

An embodiment of the present invention provides a remote login system including a controller and a server subsystem. The controller includes a command judgment circuit, a first memory element, and a first data transmission interface. The command judgment circuit is electrically connected to the first A memory element, and the first memory element is electrically connected to the first data transmission interface. The user terminal is communicatively connected with the instruction judgment circuit through the network, and the instruction judgment circuit is used to judge whether the instruction transmitted by the user terminal conforms to a preset format. The first memory element stores a serial port debug program (minicom). The server subsystem has a second data transmission interface. The first data transmission interface of the controller is electrically connected to the second data transmission interface of the server subsystem. When the command transmitted by the user terminal conforms to a preset format, the controller executes The serial port debug program enables the first data transmission interface and the second data transmission interface, so that the user terminal logs in to the server subsystem.

When the instruction conforms to a preset format, the instruction has predetermined request parameters.

The transmission protocol of the network is a secure shell protocol (Secure Shell, SSH for short).

The controller is a baseboard management controller.

The first data transmission interface and the second data transmission interface are Universal Asynchronous Transceiver (UART).

The remote login server subsystem method and remote login system according to an embodiment of the present invention have at least the following advantages: (1) easy to implement: no need to modify the server hardware, and only use a cable to connect the server subsystem The second data transmission interface of the interface with the first data transmission interface of the substrate management controller. (2) Simple operation: The user terminal can log in to the server subsystem by typing an instruction from the remote end, and then manage the server subsystem. (3) Ensuring privacy and security: The instructions sent by the user terminal are transmitted to the baseboard management controller through the network with the SSH transmission protocol, so the transmission content is encrypted. In addition, the instructions entered by the user terminal still need to have preset request parameters to log in to the server subsystem, so another protection mechanism for the server subsystem is provided.

The above description of the contents of this disclosure and the description of the following embodiments are used to demonstrate and explain the spirit and principle of the present invention, and provide a further explanation of the scope of the patent application of the present invention.

The detailed features and advantages of the present invention are described in detail in the following embodiments. The content is sufficient for any person skilled in the art to understand and implement the technical contents of the present invention. Anyone skilled in the relevant art can easily understand the related objects and advantages of the present invention. The following examples further illustrate the viewpoints of the present invention in detail, but do not limit the scope of the present invention in any way.

FIG. 1 is a block diagram of a hardware device of a remote login system according to an embodiment of the present invention. As shown in FIG. 1, the remote login system 100 is used for at least one remote user terminal 200 to perform remote login through the network 300. The user terminal 200 is, for example, a personal computer, a smart phone, a notebook computer, or a tablet computer. . The remote login system 100 includes a controller 10, a server subsystem 20 and a host system 30 (host). The controller 10 is electrically connected to the server subsystem 200 and the host system 30. In this embodiment, the controller 10 is a baseboard management controller. In other embodiments, the controller 10 may be a complex programmable logic device (Complex Programmable Logic Device) or a field programmable logic gate. Array device (Field Programmable Gate Array). The server subsystem 20 is, for example, a smart network card or other smart device. The controller 10 includes a first data transmission interface 12, a command judging circuit 14, a first memory element 16 and a second memory element 18. The instruction judgment circuit 14 is electrically connected to the first memory element 16 and the second memory element 18 respectively, and the first memory element 16 is electrically connected to the first data transmission interface 12. The first memory element 16 and the second memory element 18 are non-volatile memories, such as a programmable read-only memory (PROM), an electrically rewritable read-only memory (EAROM), and an erasable and programmable read-only memory Memory (EPROM), electrically erasable and programmable read-only memory (EEPROM) or flash memory (Flash). The first memory element 16 is used to store a serial port debug program 162 (minicom) for enabling the first data transmission interface 12, and the second memory element 18 is used to store a controller operation program 182 (bash) of the controller 10. . In this embodiment, the first data transmission interface 12 is a Universal Asynchronous Transceiver (UART). In other embodiments, the first data transmission interface 12 may also be RS-232-C, RS-422, RS485 or USB. .

As shown in FIG. 1, the user terminal 200 can communicate with the instruction determination circuit 14 of the controller 10 through the network 300. In this embodiment, the transmission protocol of the network 300 is a secure shell protocol (SSH). SSH is an encrypted network transmission protocol, which can provide a secure transmission environment for network services in an insecure network. SSH establishes a secure channel in the network to achieve the connection between the client and the server. People usually use SSH to execute commands remotely. The user terminal 200 can transmit instructions to the controller 10 through the network 300, and the instruction determination circuit 14 of the controller 10 determines whether the instructions transmitted by the user terminal 200 conform to a preset format. In this embodiment, when the instruction transmitted by the user terminal 200 conforms to a preset format, the instruction has one or more preset request parameters, and the preset request parameters are, for example, an employee number or an employee ID number. The server subsystem 20 includes a second data transmission interface 22. The second data transmission interface 22 of the server subsystem 20 is electrically connected to the first data transmission interface 12 of the controller 10. In this embodiment, the second data transmission interface 22 of the server subsystem 20 is a Universal Asynchronous Transceiver (UART). In other embodiments, the second data transmission interface 22 may also be RS-232-C, RS-422, RS485 or USB.

As shown in FIG. 1, when the instruction transmitted by the user terminal 200 has one or more preset request parameters, the controller 10 will execute a serial port debugging program (such as minicom) to enable the first data transmission interface 12 of the controller 10. And the second data transmission interface 22 of the server subsystem 20, thereby enabling a data transmission channel between the controller 10 and the server subsystem 20, so that commands can be transmitted to the server subsystem via the controller 10. In this way, the remote user terminal 30 can log in to the server subsystem 20 to manage the firmware of the server subsystem 20. Conversely, if the instruction judging circuit 14 judges that the instruction issued by the user terminal 30 does not conform to the preset format, the user terminal 30 directly logs in to a controller operation program (eg, bash) of the controller 10.

FIG. 2 is a flowchart illustrating a remote login server subsystem method according to the first embodiment of the present invention. In detail, as shown in FIG. 2, the remote login server subsystem method includes the following steps: In step S201, the user terminal 200 transmits a remote command to the instruction determination circuit 14 of the controller 10 via the network 300. In this embodiment, the transmission protocol of the network 300 is a secure shell protocol (SSH). In step S202, the instruction determination circuit 14 of the controller 10 determines whether the instruction from the user terminal 200 conforms to a preset format. If the instruction of the user terminal 200 conforms to the preset format, step S203 is performed; if the instruction of the user terminal 200 If the preset format is not met, step S206 is performed. In this embodiment, when the instruction of the user terminal 200 conforms to a preset format, the instruction must have one or more preset request parameters, and the preset request parameters are, for example, an employee number or an employee ID number. In step S203, when the instruction transmitted by the user terminal 200 conforms to the preset format, the instruction judgment circuit 14 of the controller 10 executes a serial port debug program 162 (eg, minicom) that has been stored in the first memory element 16 in advance. In step S204, after the serial port debug program 162 is executed by the instruction determination circuit 14, the serial port debug program 162 enables a data transmission channel between the controller 10 and the server subsystem 20. In step S205, after the data transmission channel between the controller 10 and the server subsystem 20 is enabled, the user terminal 200 may log in to the server subsystem 20 to manage the firmware of the server subsystem 20.

In addition, in step S206, the user terminal 200 registers a controller operating program (for example, bash) that has been stored in the second memory element 18 of the controller 10 in advance, and cannot register to the server subsystem 20 to manage the server subsystem 20 The firmware.

The remote login server subsystem method and remote login system according to an embodiment of the present invention have at least the following advantages: (1) easy to implement: no need to modify the server hardware, and only use a cable to connect the server subsystem The second data transmission interface of the interface with the first data transmission interface of the substrate management controller. (2) Simple operation: The user terminal can log in to the server subsystem by typing an instruction from the remote end, and then manage the server subsystem. (3) Ensuring privacy and security: The instructions sent by the user terminal are transmitted to the baseboard management controller through the network with the SSH transmission protocol, so the transmission content is encrypted. In addition, the instructions entered by the user terminal still need to have preset request parameters to log in to the server subsystem, so another protection mechanism for the server subsystem is provided.

Although the present invention is disclosed in the foregoing embodiments, it is not intended to limit the present invention. Changes and modifications made without departing from the spirit and scope of the present invention belong to the patent protection scope of the present invention. For the protection scope defined by the present invention, please refer to the attached patent application scope.

100‧‧‧ remote login system

10‧‧‧ Controller

12‧‧‧ the first data transmission interface

14‧‧‧Instruction judgment circuit

16‧‧‧first memory element

162‧‧‧Serial Port Debugger

18‧‧‧Second memory element

182‧‧‧controller operation program

20‧‧‧Server Subsystem

30‧‧‧Host System

22‧‧‧Second data transmission interface

200‧‧‧user terminal

300‧‧‧Internet

FIG. 1 is a structural diagram of a hardware device of a remote login system according to an embodiment of the present invention. FIG. 2 is a flowchart illustrating a remote login server subsystem method according to an embodiment of the present invention.

Claims (11)

A remote login server subsystem method includes: sending a command from a user terminal to a controller through a network; using the controller to determine whether the command transmitted by the user terminal conforms to a preset format; when the When the command transmitted by the user terminal conforms to the preset format, a serial port debugging program is executed by the controller; when the serial port debugging program is executed, the controller and the server subsystem are enabled. Data transmission channel for the user terminal to log in to the server subsystem. The remote login server subsystem method according to claim 1, wherein the user terminal communicates with an instruction judgment circuit of the controller through the network, and the instruction judgment circuit determines whether the instruction issued by the user terminal conforms to The preset format. The remote login server subsystem method according to claim 2, wherein when the instruction issued by the user terminal conforms to the preset format, the instruction has a predetermined request parameter. The remote login server subsystem method according to claim 1, further comprising, when the instruction issued by the user terminal does not conform to the preset format, the user terminal logs in a controller operation program of the controller. The remote login server subsystem method according to claim 1, wherein the controller is a baseboard management controller. A remote login system in which a user terminal communicates with the remote login system through a network. The remote login system includes: a controller including: a command judgment circuit; the user terminal communicates with the command through the network. Judging circuit communication connection, the instruction judging circuit is used to judge whether a command transmitted by the user terminal conforms to a preset format; a first memory element electrically connected to the instruction judging circuit and storing a serial port debugging program; and A first data transmission interface electrically connected to the first memory element; and a server subsystem having a second data transmission interface, the first data transmission interface of the controller is electrically connected to the server The second data transmission interface of the system; wherein when the instruction issued by the user terminal conforms to the preset format, the instruction judgment circuit executes the serial port debug program to enable the first data transmission interface and the second data transmission Interface to enable the user terminal to log in to the server subsystem. The remote login system according to claim 6, wherein when the instruction issued by the user terminal conforms to the preset format, the instruction has a predetermined request parameter. The remote login system according to claim 6, wherein the transmission protocol of the network is a secure shell protocol. The remote login system according to claim 6, wherein the controller is a baseboard management controller. The remote login system according to claim 6, wherein the first data transmission interface and the second data transmission interface are universal asynchronous transmission and reception transmitters. The remote login system according to claim 6, wherein the controller includes a second memory element, the instruction judgment circuit is electrically connected to the second memory element, and the second memory element stores a controller operating program. The instruction of the user terminal does not conform to the preset format, and the user terminal logs in to the controller operating program.