CN111339378A - Character command auditing method and system in operation and maintenance management - Google Patents
Character command auditing method and system in operation and maintenance management Download PDFInfo
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- 238000012805 post-processing Methods 0.000 claims description 10
- 238000012216 screening Methods 0.000 claims description 6
- 238000007726 management method Methods 0.000 description 13
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Abstract
The invention discloses a character command auditing method and a system in operation and maintenance management, wherein the method comprises the following steps: step S1, performing word segmentation processing on the character command character strings to obtain a plurality of rule character strings for matching, and storing the word segmented rule character strings into a state machine in a tree structure; step S2, acquiring a character string to be audited, performing word segmentation processing on the character string to be audited, and connecting a plurality of character strings after word segmentation to be used as a character string to be matched; and step S3, carrying out character matching on the character string to be matched obtained in the step S2 and a plurality of regular character strings stored in a state machine to obtain a primary matching result.
Description
Technical Field
The invention relates to the technical field of operation and maintenance auditing, in particular to a character command auditing method and system in operation and maintenance management.
Background
With the rapid development of network and computer technologies, the application of servers is becoming more extensive, and the security thereof is of great importance. While the performance and efficiency of the server are continuously improved, how to effectively prevent the server from being attacked and ensure the security and the effectiveness of data in the server has become an important research subject of information security. At present, an auditing method for the character command operation of operation and maintenance personnel is generally lacked, once operation and maintenance misoperation occurs, great loss is possibly caused to a server, and therefore, the character command operation auditing is very necessary to ensure the safety of the server.
In the existing auditing process of character command operation, rules for operation auditing are generally manually configured by auditors or preset by research personnel, and after a character command of operation and maintenance personnel is obtained and data is analyzed, the character command is compared with the set rules to judge whether the operation and maintenance personnel is abnormal or not, so that an important step is character matching in the auditing process of character command operation, and the efficiency and accuracy of the common character matching in the prior art are greatly limited.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a character command auditing method and system in operation and maintenance management, which aim to realize the purpose of efficiently and accurately auditing the operation of character commands by performing special word segmentation on character command character strings and character strings to be audited and realizing the quick matching of character commands by using a state machine, thereby improving the efficiency and the accuracy of character matching.
In order to achieve the above purpose, the present invention provides a character command auditing method in operation and maintenance management, which comprises the following steps:
step S1, performing word segmentation processing on the character command character strings to obtain a plurality of rule character strings for matching, and storing the word segmented rule character strings into a state machine in a tree structure;
step S2, acquiring a character string to be audited, performing word segmentation processing on the character string to be audited, and connecting a plurality of character strings after word segmentation to be used as a character string to be matched;
and step S3, performing character matching on the character string to be matched obtained in the step S2 and the plurality of regular character strings stored in the state machine to obtain a preliminary matching result.
Preferably, after step S3, the method further includes the following steps:
and step S4, performing screening post-processing on the preliminary matching result by using preset conditions to obtain a final matching result.
Preferably, the step S1 further includes:
step S100, acquiring a character command character string;
step S101, splitting the character command character string according to preset characters to obtain a plurality of character strings;
step S102, according to the preset special character processing rule, the special processing is carried out on the character string obtained in the step S101
And step S103, processing each split character string by using a specified special combined character to obtain a regular character string after word segmentation corresponding to each character command character string.
And step S104, storing the obtained multiple rule character strings into a state machine in a tree structure respectively.
Preferably, in step S101, the predetermined characters for splitting include, but are not limited to, space, semicolon, and quotation mark.
Preferably, in step S102, the special combination characters include, but are not limited to [ ], (), < >.
Preferably, in step S104, a rule object structure is created, and the rule character strings after word segmentation are stored in the rule objects, and each rule object stores the character strings in a tree structure in the state machine.
Preferably, the step S2 further includes:
step S200, splitting the character string to be examined according to preset characters to obtain a plurality of character strings;
step S201, performing special processing on the character string obtained in step S200 according to a preset special character processing rule;
and step S202, processing the character string processed in the step S201 by using a specified special combined character, and connecting a plurality of processed character strings to be used as the character string to be matched.
Preferably, in step S3, the aoe algorithm is used to perform character matching on the character string to be matched and the plurality of rule character strings in the tree form in the state machine.
Preferably, in step S3, the character string to be matched is scanned from beginning to end, jump matching is performed according to the tree structure of the rule character string, and if the state in jump has a bound rule character string, it indicates that the rule character string is matched.
In order to achieve the above object, the present invention further provides a character command auditing system in operation and maintenance management, including:
the regular character string storage module is used for carrying out word segmentation processing on the character command character strings to obtain a plurality of matched regular character strings and storing the word segmented regular character strings into the state machine in a tree structure;
the system comprises a to-be-audited character string acquisition and processing module, a to-be-audited character string acquisition and processing module and a to-be-audited character string processing module, wherein the to-be-audited character string acquisition and processing module is used for acquiring the to-be-audited character string, performing word segmentation processing on the to-be-audited character string, and connecting a plurality of word-segmented character strings;
and the character matching module is used for performing character matching on the character string to be matched obtained by the character string to be audited obtaining and processing module and the plurality of regular character strings stored in the state machine to obtain a preliminary matching result.
Compared with the prior art, the character command auditing method and system in operation and maintenance management provided by the invention have the advantages that the character command character string and the character string to be audited are subjected to special word segmentation, and the state machine is utilized to realize the rapid matching of the character command, so that the character matching efficiency and accuracy are improved, and the purpose of efficiently and accurately auditing the operation of the character command is realized.
Drawings
FIG. 1 is a flow chart illustrating steps of a character command auditing method in operation and maintenance management according to the present invention;
FIG. 2 is a diagram illustrating character matching in accordance with an embodiment of the present invention;
FIG. 3 is a system architecture diagram of a character command auditing system in operation and maintenance management according to the present invention;
FIG. 4 is a flow chart of character command auditing in an embodiment of the present invention.
Detailed Description
Other advantages and capabilities of the present invention will be readily apparent to those skilled in the art from the present disclosure by describing the embodiments of the present invention with specific embodiments thereof in conjunction with the accompanying drawings. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention.
FIG. 1 is a flow chart of steps of a character command auditing method in operation and maintenance management according to the present invention. As shown in fig. 1, the method for auditing a character command in operation and maintenance management according to the present invention includes the following steps:
and step S1, performing word segmentation processing on the character command character strings to obtain a plurality of rule character strings for matching, and storing the word segmented rule character strings into a state machine in a tree structure.
Specifically, step S1 further includes:
step S100, acquiring a character command character string. In the invention, the character command string is a predetermined command string which can be correctly operated and executed by operation and maintenance personnel, such as cd-ls, cd-s, cd-l and the like.
And S101, splitting the character command character string according to preset characters to obtain a plurality of character strings. In the specific embodiment of the present invention, the preset characters for splitting include, but are not limited to, space, part number, quotation mark, and other characters, for example, for character command character strings cd-ls, cd-s, cd-l, cd-ls are split to obtain cd-ls; cd, -s; cd, -l.
Step S102, performing special processing on the character string obtained in step S101 according to a preset special character processing rule, for example, for a preset special character "-", the processing rule is to split each character after the special character and combine the special character with each character, for example, -wr, the special character is split into-w, -r, and then after the special processing in step S102, the character string cd, -l, -S is obtained; cd, -s; cd, -l.
And step S103, processing the character string processed in the step S102 by using a specified special combined character to obtain a regular character string after word segmentation corresponding to each character command character string. In the specific embodiment of the present invention, the special combined characters include, but are not limited to [ ], (), < ], etc., and the special combined characters are added to the left and right of each character string processed in step S102 to obtain a plurality of segmented regular character strings, for example, a regular character string [ cd ] [ -l ] [ -S ] corresponding to a character command character string cd-ls, a regular character string [ cd ] [ -S ] corresponding to a character command character string cd-S, and a regular character string [ cd ] [ -l ] corresponding to a character command character string cd-l.
And step S104, storing the obtained multiple rule character strings into a state machine in a tree structure respectively.
Specifically, in step S104, a rule object structure is created, the segmented rule character strings are stored in the rule objects, for example, three character strings of the rule character strings [ cd ] [ -l ] [ -S ], [ cd ] [ -S ] and [ cd ] [ -l ], the rule character strings [ cd ], [ -l ], [ -S ] are stored in a first rule object, two character strings of the [ cd ], [ -S ] are stored in a second rule object, two character strings of the [ cd ], [ -l ] are stored in the second rule object, and each rule object stores the character strings in a tree structure in a state machine to achieve the purpose of fast matching.
And step S2, acquiring a character string to be audited, performing word segmentation processing on the character string to be audited, and connecting a plurality of character strings after word segmentation to be used as a character string to be matched.
Specifically, step S2 further includes:
and S200, splitting the character string to be examined according to preset characters to obtain a plurality of character strings. In the specific embodiment of the present invention, the preset characters for splitting include, but are not limited to, space, semicolon, quotation mark, and other characters, for example, for a character string cd-l to be audited, cd-l is obtained after splitting.
Step S201, performing special processing on the character string obtained in step S200 according to a preset special character processing rule, for example, for a preset special character "-", the processing rule is to split each character after the special character, and merge the special character with each character, for example, -wr, and then perform special splitting into-w, -r.
And step S202, processing the character string processed in the step S201 by using a specified special combined character, and connecting a plurality of processed character strings to be used as character strings to be matched. In the embodiment of the present invention, the special combined characters include, but are not limited to [ ], (), < >, etc., and the special combined characters are added to the left and right of each character string processed in step S201, and the character strings are connected, for example, cd-l is processed and connected by the special combined characters [ ], so as to obtain the character string [ cd ] [ -l ] to be matched.
And step S3, performing character matching on the character string to be matched obtained in the step S2 and the plurality of regular character strings stored in the state machine to obtain a preliminary matching result. In the embodiment of the invention, an aoe algorithm is adopted to perform character matching on a character string to be matched and a plurality of rule character strings in a state machine, and because each rule object is in a tree structure, the character matching can be performed according to the tree of each state machine when the characters are matched, specifically, the character string to be matched is scanned from beginning to end, jump matching is performed according to the tree structure of the rule character string, and if the jump state has a bound rule character string, the rule character string is matched.
For example, in fig. 2, the rule string in the state machine is hes, his, and she, and the tree-like connection rule is as shown in fig. 2, when the state is 5, the case is matched, the case is 7, the case is matched, the case is 9, the case is matched, for example, the string of his is matched, firstly, the state is s character, the state is changed to 3, then, the h character is matched, the state is changed to 4, then, the i character is matched, the matching fails, the function Build _ DFA algorithm (which is a general algorithm, which is not described herein) is used, and then, the state 6 is returned to continue matching until the state is changed to 7, then, there is a bound matching string, then, his is matched successfully, it needs to be explained that all characters are not matched successfully, generally, as long as the characters to be matched include the rule character, the rule character is matched successfully, and since shi is included in the characters to be matched, the matching success is indicated.
And step S4, performing screening post-processing on the preliminary matching result to obtain a final matching result.
There may be multiple results of the preliminary matching, which requires post-processing. In the embodiment of the present invention, a screening condition may be set for the matching result in advance, for example, a time period is included in the rule object, the preliminary matching result that is successfully matched in the time period is retained, otherwise, the preliminary matching result is excluded to obtain the final matching result.
Fig. 3 is a system architecture diagram of a character command auditing system in operation and maintenance management according to the present invention. As shown in fig. 3, the present invention provides a character command auditing system in operation and maintenance management, including:
the rule character string storage module 301 is configured to perform word segmentation processing on the multiple character command character strings to obtain multiple rule character strings for matching, and store the multiple rule character strings after word segmentation into the state machine in a tree structure.
Specifically, the rule string storage module 301 further includes:
and the character command character string acquisition unit is used for acquiring the character command character string. In the invention, the character command string is a predetermined command string which can be correctly operated and executed by operation and maintenance personnel, such as cd-ls, cd-s, cd-l and the like.
And the splitting unit is used for splitting the character command character string according to preset characters to obtain a plurality of character strings. In the specific embodiment of the present invention, the preset characters for splitting include, but are not limited to, space, part number, quotation mark, and other characters, for example, for character command character strings cd-ls, cd-s, cd-l, cd-ls are split to obtain cd-ls; cd, -s; cd, -l.
The special character processing unit is used for performing special processing on the character string obtained by the splitting unit according to a preset special character processing rule, for example, for a preset special character "-", the processing rule is that each character after the special character is split, and the special character is combined with each character, for example, -wr, the special character is split into-w, -r, and the character string cd, -l, -s is obtained after the special processing of the special character processing unit; cd, -s; cd, -l.
And the regular character string forming unit is used for processing the character string processed by the special processing unit by using the specified special combination character to obtain the segmented regular character string corresponding to each character command character string. In the specific embodiment of the present invention, the special combined characters include, but are not limited to [ ], (), < ], and the like, and the special combined characters are added to the left and right of each character string processed by the special character processing unit to obtain a plurality of segmented regular character strings, for example, a regular character string [ cd ] [ -l ] [ -s ] corresponding to a character command character string cd-ls, a regular character string [ cd ] [ -s ] corresponding to a character command character string cd-s, and a regular character string [ cd ] [ -l ] corresponding to a character command character string cd-l are obtained.
And the storage unit is used for storing the obtained plurality of rule character strings into the state machine in a tree structure respectively.
Specifically, a rule object structure body is created in a storage unit, the rule character strings after word segmentation are respectively stored in rule objects, three character strings in the rule character strings [ cd ] [ -l ] [ -s ], [ cd ] [ -s ] and [ cd ] [ -l ] are stored in a first rule object, two character strings in the [ cd ], [ -l ], [ -s ] are stored in a second rule object, two character strings in the [ cd ], [ -l ] are stored in the second rule object, and each rule object stores the character strings in a tree structure in a state machine so as to achieve the purpose of fast matching.
And the to-be-audited character string acquiring and processing module 302 is configured to acquire a to-be-audited character string, perform word segmentation processing on the to-be-audited character string, and connect a plurality of word-segmented character strings to serve as a to-be-matched character string.
Specifically, the pending character string obtaining processing module 302 further includes:
and the splitting unit is used for splitting the character string to be examined according to preset characters to obtain a plurality of character strings. In the specific embodiment of the present invention, the preset characters for splitting include, but are not limited to, space, semicolon, quotation mark, and other characters, for example, for a character string cd-l to be audited, cd-l is obtained after splitting.
The special character processing unit is used for performing special processing on the character string obtained by the splitting unit according to a preset special character processing rule, for example, for a preset special character "-", the processing rule is to split each character after the special character and merge the special character with each character, for example, -wr, so that the special character is split into-w, -r.
And the character string forming unit to be matched is used for processing the character string processed by the special character processing unit by using a specified special combined character and connecting a plurality of processed character strings to be used as the character string to be matched. In the embodiment of the present invention, the special combined characters include, but are not limited to [ ], (), < ], and the special combined characters are added to the left and right of each character string processed by the special character processing unit, and the character strings are connected, for example, for cd-l, the character string to be matched [ cd ] [ -l ] is processed and connected by the special combined characters [ ].
And the character matching module 303 is configured to perform character matching on the character string to be matched obtained by the to-be-checked character string obtaining and processing module 302 and the plurality of regular character strings stored in the state machine to obtain a preliminary matching result. In the embodiment of the invention, an aoe algorithm is adopted to perform character matching on a character string to be matched and a plurality of rule character strings in a state machine, and because each rule object is in a tree structure, the character matching can be performed according to the tree of each state machine when the characters are matched, specifically, the character string to be matched is scanned from beginning to end, jump matching is performed according to the tree structure of the rule character string, and if the jump state has a bound rule character string, the rule character string is matched.
And the post-processing unit 304 is configured to perform screening post-processing on the preliminary matching result to obtain a final matching result.
There may be multiple results of the preliminary matching, which requires post-processing. In an embodiment of the present invention, the post-processing unit 304 may set a filtering condition for the matching result in advance, for example, a time period is included in the rule object, a preliminary matching result that is successfully matched in the time period is retained, otherwise, the preliminary matching result is excluded to obtain a final matching result.
FIG. 4 is a flow chart of character command auditing in an embodiment of the present invention. As shown in FIG. 4, the character command audit process is as follows:
step 1, acquiring character command character strings, such as cd-ls, cd-s and cd-l, firstly performing word segmentation, and if the special characters are [ ], obtaining regular character strings of [ cd ] [ -l ] [ -s ], [ cd ] [ -s ], [ cd ] [ -l ] after word segmentation respectively.
And 2, creating a rule object structure body, respectively storing the rule character strings after word segmentation into three rule objects, [ cd ], [ -l ], [ -s ] three character strings into a first rule object, [ cd ], [ -s ] two character strings into a second rule object, [ cd ], [ -l ] two character strings into a second rule object, and storing the character strings into a state machine in a tree structure by each rule object so as to achieve the purpose of quick matching.
Step 3, acquiring a character string to be audited, assuming that the acquired audit character string is cd-l, performing word segmentation processing on the character string to be audited to obtain a character string to be matched to be [ cd ] [ -l ], then putting the character string to be matched to an acsm matching engine for matching, matching the acsm matching engine with a first rule object containing [ cd ], [ -l ], [ -s ], matching the audit character to be matched to the [ cd ] and the [ -l ] character in the rule object by the acsm matching engine, and not matching the audit character to be matched to the [ -s ] character if the audit character to be matched to the [ -s ] character is not matched; matching with a second rule object containing [ cd ] [ -s ], wherein if the [ -s ] cannot be matched, the matching is not successful; and matching the third rule object if the [ cd ] [ -l ] of the third rule object can be matched, and then successfully matching the third rule object. And if the audit character string is cd-s, the second rule object is successfully matched. If cd-l-s, all three match.
And 4, when a plurality of matching results are obtained, post-processing is required for screening, for example, the rule object contains a time period, namely, matching in the time period is not completed until the matching is successful. And eliminating the products which do not meet the matching conditions through post-processing to obtain the final matching result.
In summary, the method and system for auditing the character command in operation and maintenance management of the present invention implement special word segmentation on the character command string and the character string to be audited, and implement fast matching of the character command by using the state machine, thereby improving the efficiency and accuracy of character matching, and achieving the purpose of efficiently and accurately auditing the operation of the character command.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, the scope of the invention should be determined from the following claims.
Claims (10)
1. A character command auditing method in operation and maintenance management comprises the following steps:
step S1, performing word segmentation processing on the character command character strings to obtain a plurality of rule character strings for matching, and storing the word segmented rule character strings into a state machine in a tree structure;
step S2, acquiring a character string to be audited, performing word segmentation processing on the character string to be audited, and connecting a plurality of character strings after word segmentation to be used as a character string to be matched;
and step S3, performing character matching on the character string to be matched obtained in the step S2 and the plurality of regular character strings stored in the state machine to obtain a preliminary matching result.
2. The method for auditing character commands in operation and maintenance management according to claim 1, further comprising, after step S3, the steps of:
and step S4, performing screening post-processing on the preliminary matching result by using preset conditions to obtain a final matching result.
3. The method for auditing character commands in operation and maintenance management according to claim 2, wherein step S1 further comprises:
step S100, acquiring a character command character string;
step S101, splitting the character command character string according to preset characters to obtain a plurality of character strings;
step S102, according to the preset special character processing rule, the special processing is carried out on the character string obtained in the step S101
And step S103, processing each split character string by using a specified special combined character to obtain a regular character string after word segmentation corresponding to each character command character string.
And step S104, storing the obtained multiple rule character strings into a state machine in a tree structure respectively.
4. The method as claimed in claim 3, wherein the character command auditing method in the operation and maintenance management comprises: in step S101, the predetermined characters for splitting include, but are not limited to, space, semicolon, and quotation mark.
5. The method as claimed in claim 3, wherein the character command auditing method in the operation and maintenance management comprises: in step S102, the special combination characters include, but are not limited to [ ], (), < >.
6. The method as claimed in claim 3, wherein the character command auditing method in the operation and maintenance management comprises: in step S104, a rule object structure is created, and the rule character strings after word segmentation are stored in the rule objects, and each rule object stores the character strings in a tree structure in the state machine.
7. The method as claimed in claim 3, wherein the character command auditing method in the operation and maintenance management comprises: step S2 further includes:
step S200, splitting the character string to be examined according to preset characters to obtain a plurality of character strings;
step S201, performing special processing on the character string obtained in step S200 according to a preset special character processing rule;
and step S202, processing the character string processed in the step S201 by using a specified special combined character, and connecting a plurality of processed character strings to be used as the character string to be matched.
8. The method as claimed in claim 7, wherein the character command auditing method in operation and maintenance management comprises: in step S3, a aoe algorithm is used to perform character matching between the string to be matched and the regular strings in the state machine.
9. The method as claimed in claim 7, wherein the character command auditing method in operation and maintenance management comprises: in step S3, the character string to be matched is scanned from beginning to end, jump matching is performed according to the tree structure of the rule character string, and if the state in jump has a bound rule character string, it indicates that the rule character string is matched.
10. A character command auditing system in operation and maintenance management comprises:
the regular character string storage module is used for carrying out word segmentation processing on the character command character strings to obtain a plurality of matched regular character strings and storing the word segmented regular character strings into the state machine in a tree structure;
the system comprises a to-be-audited character string acquisition and processing module, a to-be-audited character string acquisition and processing module and a to-be-audited character string processing module, wherein the to-be-audited character string acquisition and processing module is used for acquiring the to-be-audited character string, performing word segmentation processing on the to-be-audited character string, and connecting a plurality of word-segmented character strings;
and the character matching module is used for performing character matching on the character string to be matched obtained by the character string to be audited obtaining and processing module and the plurality of regular character strings stored in the state machine to obtain a preliminary matching result.
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| CN111984672A (en) * | 2020-08-11 | 2020-11-24 | 成都安恒信息技术有限公司 | Method for providing rule matching capability for command request in operation and maintenance auditing system |
| CN111984672B (en) * | 2020-08-11 | 2024-03-15 | 成都安恒信息技术有限公司 | Method for providing rule matching capability for command request in operation and maintenance audit system |
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