CN113067834A - Method for remotely controlling server based on Web browser - Google Patents
Method for remotely controlling server based on Web browser Download PDFInfo
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- CN113067834A CN113067834A CN202110387302.9A CN202110387302A CN113067834A CN 113067834 A CN113067834 A CN 113067834A CN 202110387302 A CN202110387302 A CN 202110387302A CN 113067834 A CN113067834 A CN 113067834A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/16—Implementing security features at a particular protocol layer
- H04L63/168—Implementing security features at a particular protocol layer above the transport layer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
- H04L69/162—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields involving adaptations of sockets based mechanisms
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Abstract
The invention discloses a method for remotely controlling a server based on a Web browser, which comprises the following steps: s1: a Web browser initiates a WebSocket request for connecting a remote host where a managed server is located; s2: the server receives and analyzes the Web Socket request, and the remote connection server establishes an SSH channel; meanwhile, establishing a Web Socket channel with a Web browser to complete the establishment of the channel; s3: the Web browser sends a command to the server through a channel established by the server; the server returns execution result data to the Web browser after executing the command; s4: and the Web browser acquires the result data, processes the result data, and displays and outputs the result data. The invention sets the server, establishes a channel between the Web browser and the server through the Web Socket, establishes a channel between the server and the remote control server through the SSH protocol, and realizes the remote control of the server by the Web browser.
Description
Technical Field
The invention relates to a method for controlling a server, in particular to a method for remotely controlling the server through a Web browser based on Web Socket and SSH protocols.
Background
SSH is an abbreviation for Secure Shell, made by the IETF Network Group (Network Working Group); SSH is a security protocol built on an application layer basis. SSH is currently a relatively reliable protocol that provides security for telnet sessions and other web services. The SSH protocol can effectively prevent the problem of information leakage in the remote management process. SSH clients are applicable to a variety of platforms. Almost all UNIX platforms, including HP-UX, Linux, AIX, Solaris, Digital UNIX, Irix, and others, can run SSH, which is the mainstream remote management connection protocol at present and is widely used in the field of operation, maintenance and management.
At present, the management tools for remotely connecting Linux/UNIX by SSH, which are commonly used for operation and maintenance, include PuTTY, xshell, Secure CRT, etc., and although Linux/UNIX can be conveniently remotely logged in by using the management tools, the following disadvantages exist: 1. SSH remote management tool software needs to be installed on a computer of each operation and maintenance personnel; 2. SSH management tool configurations of different operation and maintenance personnel cannot be synchronized; 3. the command operation logs of the operation and maintenance personnel cannot be collected and managed in a unified and centralized manner; 4. unified authority management and account management cannot be performed on operation and maintenance personnel; 5. the operation and maintenance management terminal needs to be in the same IP subnet with the managed server.
Web Socket is a protocol for full duplex communication over a single TCP connection. The Web Socket communication protocol was specified by IETF as standard RFC 6455 in 2011 and is supplemented by RFC 7936. The Web Socket API is also standardized by W3C. The Web Socket enables data exchange between the client and the server to be simpler, and allows the server to actively push data to the client. In the Web Socket API, the browser and the server only need to complete one handshake, and persistent connection can be directly established between the browser and the server, and bidirectional data transmission is carried out. Therefore, it is necessary to design a method for remotely controlling a server based on a Web browser.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method for remotely controlling a server based on a Web browser, which comprises the steps of setting a server, establishing a channel between the Web browser and the server through a Web Socket, and establishing a channel between the server and the remote control server through an SSH protocol, so as to realize the remote control of the server by the Web browser.
The technical scheme adopted by the invention for solving the technical problems is to provide a method for remotely controlling a server based on a Web browser, which comprises the following steps: s1: the method comprises the steps that a Web browser initiates a Web Socket request for connecting a remote host where a managed server is located; s2: the server receives and analyzes the Web Socket request, and remotely connects the server to establish an SSH channel according to the Web Socket request; meanwhile, responding to the Web Socket request and establishing a Web Socket channel with a Web browser to complete channel establishment; s3: the Web browser sends a command to a host where the server is located through a channel established by the server; the server returns execution result data to the Web browser after executing the command; s4: and the Web browser acquires the result data, processes the result data, and displays and outputs the result data.
Further, the server comprises an HTTP/Web Socket processing unit, an input processing unit, an SSH connection processing unit, an output playback unit and a log processing unit, wherein the HTTP/Web Socket processing unit is connected to a Web browser, and the SSH connection processing unit is remotely connected to a server.
Further, the Web browser initiates a Web Socket request to the server through the front-end Web program, in step S1, the Web Socket request is sent to the server through the Web browser loaded with the front-end Web program, the Web Socket request includes summary information of a host where the server to be connected is located, and the summary information of the host includes a host IP and a host ID.
Further, the step S2 includes: s21: the HTTP/Web Socket processing unit of the server analyzes the Web Socket request, obtains abstract information of a host where the server to be connected is located, queries a database according to a host IP and a host ID, and obtains an SSH authentication user password of the host; s22: the SSH connection processing unit of the server side remotely connects the host through an SSH protocol by an SSH authentication user password of the host, and establishes an SSH channel with the host; s23: the Web browser establishes a Web Socket channel with a server by using an Attach Addon method of an Xterm. js plug-in for inputting a command and displaying an execution result of the command back.
Further, the step S3 includes: s31: the method comprises the steps that a Web browser inputs a command and sends the command to an HTTP/Web Socket processing unit through a Web Socket channel, and the HTTP/Web Socket processing unit forwards data to an stdin pipeline after processing the input command; s32: the input processing unit forwards the data of the stdin pipeline to an stdin standard input of the SSH channel, and meanwhile, the log processing unit writes the data of the stdin pipeline into a user operation log; s33: the server of the remote host acquires stdin standard input, and returns stdout data after executing a command according to input content, and the SSH channel returns the stdout data to the output playback unit of the server; s34: the output playback unit writes stdout data of the SSH channel into the Web Socket channel and returns the stdout data to the Web browser, and meanwhile, the log processing unit writes the stdout data into a user operation log.
Further, the front-end Web program sets a platform login entry interface for account login to enter a management background; the account number comprises a general account number and an administrator account number, and the general account number is used for inquiring and logging in connection and inquiring and exporting logs; the administrator account performs platform user management, server management, and log management.
Furthermore, the server is provided with a platform account management interface, the platform account management interface comprises an inquiry interface, a new interface, a deletion interface, a modification interface and a login interface, and the front-end Web program carries out inquiry, addition, deletion, modification and login operations of a user by calling the platform account management interface; the server sets authority classification according to the account number type; the server is provided with a log query interface, and the front-end Web program queries and exports logs by calling the operation log query interface.
Furthermore, the server side is provided with a server management interface which comprises a server query interface, a newly added interface, a deleted interface, a modified interface and a login interface, and the front-end Web program carries out query, addition, deletion, modification and login operations of the managed server by calling the server management interface; and the server performs grouping control on the server.
Further, the Web browser realizes input and playback output through an Xterm analog display terminal.
Compared with the prior art, the invention has the following beneficial effects: the method for remotely controlling the server based on the Web browser, provided by the invention, comprises the steps of setting the server, establishing a channel between the Web browser and the server through a Web Socket, establishing a channel between the server and the remote control server through an SSH protocol, realizing centralized configuration and management of the Linux/unix server under the SSH protocol, uniformly managing and distributing account number authorities of operation and maintenance personnel, uniformly collecting and managing operation command logs of the operation and maintenance personnel, enabling the network where the operation and maintenance personnel are located not to be in the same subnet as the server, realizing more safety and controllability and being beneficial to uniform management.
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FIG. 1 is a flowchart of a method for remotely controlling a server based on a Web browser according to an embodiment of the present invention;
fig. 2 is a diagram of a server architecture in an embodiment of the invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
Fig. 1 is a flowchart of a method for remotely controlling a server based on a Web browser according to an embodiment of the present invention.
Referring to fig. 1, a method for remotely controlling a server based on a Web browser according to an embodiment of the present invention includes the following steps:
s1: the method comprises the steps that a Web browser initiates a Web Socket request for connecting a remote host where a managed server is located;
s2: the server receives and analyzes the Web Socket request, and remotely connects the server to establish an SSH channel according to the Web Socket request; meanwhile, responding to the Web Socket request and establishing a Web Socket channel with a Web browser to complete channel establishment;
s3: the Web browser sends a command to a host where the server is located through a channel established by the server; the server returns execution result data to the Web browser after executing the command;
s4: and the Web browser acquires the result data, processes the result data, and displays and outputs the result data. The Web browser realizes input and playback output through the Xterm analog display terminal.
Referring to fig. 2, in the method for remotely controlling a server based on a Web browser according to the embodiment of the present invention, a server includes an HTTP/Web Socket processing unit, an input processing unit, an SSH connection processing unit, an output playback unit, and a log processing unit, where the HTTP/Web Socket processing unit is connected to the Web browser, and the SSH connection processing unit is remotely connected to the server.
Specifically, the Web browser initiates a Web Socket request to the server through the front-end Web program, in step S1, the Web Socket request is sent to the server through the Web browser loaded with the front-end Web program, the Web Socket request includes summary information of a host where the server to be connected is located, and the summary information of the host includes a host IP and a host ID.
Specifically, step S2 includes:
s21: the HTTP/Web Socket processing unit of the server analyzes the Web Socket request, obtains abstract information of a host where the server to be connected is located, queries a database according to a host IP and a host ID, and obtains an SSH authentication user password of the host;
s22: the SSH connection processing unit of the server side remotely connects the host through an SSH protocol by an SSH authentication user password of the host, and establishes an SSH channel with the host;
s23: the Web browser establishes a Web Socket channel with a server by using an Attach Addon method of an Xterm. js plug-in for inputting a command and displaying an execution result of the command back.
Specifically, step S3 includes:
s31: the method comprises the steps that a Web browser inputs a command and sends the command to an HTTP/Web Socket processing unit through a Web Socket channel, and the HTTP/Web Socket processing unit forwards data to an stdin pipeline after processing the input command;
s32: the input processing unit forwards the data of the stdin pipeline to an stdin standard input of the SSH channel, and meanwhile, the log processing unit writes the data of the stdin pipeline into a user operation log;
s33: the server of the remote host acquires stdin standard input, and returns stdout data after executing a command according to input content, and the SSH channel returns the stdout data to the output playback unit of the server;
s34: the output playback unit writes stdout data of the SSH channel into the Web Socket channel and returns the stdout data to the Web browser, and meanwhile, the log processing unit writes the stdout data into a user operation log.
According to the method for remotely controlling the server based on the Web browser, disclosed by the embodiment of the invention, a front-end Web program is provided with a platform login entry interface for an account to login and enter a management background; the account number comprises a general account number and an administrator account number, and the general account number is used for inquiring and logging in connection and inquiring and exporting logs; the administrator account performs platform user management, server management, and log management. The server side is provided with a platform account management interface, the platform account management interface comprises a query interface, a newly added interface, a deletion interface, a modification interface and a login interface, and the front-end Web program carries out query, addition, deletion, modification and login operations of a user by calling the platform account management interface; the server sets authority classification according to the account number type; the server is provided with a log query interface, and the front-end Web program queries and exports logs by calling the operation log query interface.
Preferably, the server sets a server management interface, including a server query interface, a new addition interface, a deletion interface, a modification interface and a login interface, and the front-end Web program performs query, addition, deletion, modification and login operations of the managed server by calling the server management interface; the server side can perform grouping management on the servers.
In summary, in the method for remotely controlling the server based on the Web browser according to the embodiment of the present invention, the server is set, the channel between the Web browser and the server is established through the Web Socket, the channel between the server and the remote control server is established through the SSH protocol, under the SSH protocol, the Linux/unix server is centrally configured and managed, the account permissions of the operation and maintenance personnel can be uniformly managed and allocated, the operation command logs of the operation and maintenance personnel are uniformly collected and managed, and the network where the operation and maintenance personnel are located does not need to be in the same subnet as the server, so that the method is safer and more controllable, and is beneficial to uniform management.
Although the present invention has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A method for remotely controlling a server based on a Web browser is characterized by comprising the following steps:
s1: the method comprises the steps that a Web browser initiates a Web Socket request for connecting a remote host where a managed server is located;
s2: the server receives and analyzes the Web Socket request, and remotely connects the server to establish an SSH channel according to the Web Socket request; meanwhile, responding to the Web Socket request and establishing a Web Socket channel with a Web browser to complete channel establishment;
s3: the Web browser sends a command to a host where the server is located through a channel established by the server; the server returns execution result data to the Web browser after executing the command;
s4: and the Web browser acquires the result data, processes the result data, and displays and outputs the result data.
2. The method for remotely controlling the server based on the Web browser as claimed in claim 1, wherein the server comprises an HTTP/Web Socket processing unit, an input processing unit, an SSH connection processing unit, an output playback unit and a log processing unit, the HTTP/Web Socket processing unit is connected to the Web browser, and the SSH connection processing unit is remotely connected to the server.
3. The method according to claim 2, wherein the Web browser initiates a Web Socket request to the server through a front-end Web program, and in step S1, the Web Socket request is sent to the server through the Web browser loaded with the front-end Web program, the Web Socket request includes summary information of a host where the server to be connected is located, and the summary information of the host includes a host IP and a host ID.
4. The Web browser-based remote control server method according to claim 3, wherein the step S2 includes:
s21: the HTTP/Web Socket processing unit of the server analyzes the Web Socket request, obtains abstract information of a host where the server to be connected is located, queries a database according to a host IP and a host ID, and obtains an SSH authentication user password of the host;
s22: the SSH connection processing unit of the server side remotely connects the host through an SSH protocol by an SSH authentication user password of the host, and establishes an SSH channel with the host;
s23: the Web browser establishes a Web Socket channel with a server by using an Attach Addon method of an Xterm. js plug-in for inputting a command and displaying an execution result of the command back.
5. The Web browser-based remote control server method according to claim 4, wherein the step S3 includes:
s31: the method comprises the steps that a Web browser inputs a command and sends the command to an HTTP/Web Socket processing unit through a Web Socket channel, and the HTTP/Web Socket processing unit forwards data to an stdin pipeline after processing the input command;
s32: the input processing unit forwards the data of the stdin pipeline to an stdin standard input of the SSH channel, and meanwhile, the log processing unit writes the data of the stdin pipeline into a user operation log;
s33: the server of the remote host acquires stdin standard input, and returns stdout data after executing a command according to input content, and the SSH channel returns the stdout data to the output playback unit of the server;
s34: the output playback unit writes stdout data of the SSH channel into the Web Socket channel and returns the stdout data to the Web browser, and meanwhile, the log processing unit writes the stdout data into a user operation log.
6. The method for remotely controlling the server based on the Web browser as claimed in claim 3, wherein the front-end Web program sets a platform login entry interface for account login to enter a management background; the account number comprises a general account number and an administrator account number, and the general account number is used for inquiring and logging in connection and inquiring and exporting logs; the administrator account performs platform user management, server management, and log management.
7. The method for remotely controlling the server based on the Web browser as claimed in claim 6, wherein the server is provided with a platform account management interface, the platform account management interface comprises an inquiry interface, a new adding interface, a deleting interface, a modifying interface and a login interface, and the front-end Web program carries out inquiry, adding, deleting, modifying and login operations of a user by calling the platform account management interface; the server sets authority classification according to the account number type; the server is provided with a log query interface, and the front-end Web program queries and exports logs by calling the operation log query interface.
8. The method according to claim 3, wherein the server sets a server management interface including a server query interface, an add-on interface, a delete interface, a modify interface and a login interface, and the front-end Web program performs query, add, delete, modify and login operations of the managed server by calling the server management interface; and the server performs grouping control on the server.
9. The method of claim 1, wherein the Web browser implements input and redisplay output through an Xterm analog display terminal.
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