book

Linux Basics for Hackers

by OccupyTheWeb .

December 2018

Beginner

248 pages

5h 54m

English

No Starch Press

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About the Technical Reviewer
What’s in This BookWhat Is Ethical Hacking?Why Hackers Use LinuxDownloading Kali LinuxVirtual MachinesSetting Up Kali
Introductory Terms and ConceptsA Tour of KaliBasic Commands in LinuxFinding StuffModifying Files and DirectoriesGo Play Now!Exercises

Viewing FilesFiltering Text with grepUsing sed to Find and ReplaceViewing Files with more and lessSummaryExercises
Analyzing Networks with ifconfigChecking Wireless Network Devices with iwconfigChanging Your Network InformationManipulating the Domain Name SystemSummaryExercises
Using apt to Handle SoftwareAdding Repositories to Your sources.list FileUsing a GUI-based InstallerInstalling Software with gitSummaryExercises
Different Types of UsersGranting PermissionsChecking PermissionsChanging PermissionsSetting More Secure Default Permissions with MasksSpecial PermissionsSummaryExercises
Viewing ProcessesManaging ProcessesScheduling ProcessesSummaryExercises
Viewing and Modifying Environment VariablesChanging Your Shell PromptChanging Your PATHCreating a User-Defined VariableSummaryExercises
A Crash Course in BashYour First Script: “Hello, Hackers-Arise!”Your Very First Hacker Script: Scan for Open PortsCommon Built-in Bash CommandsSummaryExercises
What Is Compression?Tarring Files TogetherCompressing FilesCreating Bit-by-Bit or Physical Copies of Storage DevicesSummaryExercises
The Device Directory /devMounting and UnmountingMonitoring FilesystemsSummaryExercises
The rsyslog Logging DaemonAutomatically Cleaning Up Logs with logrotateRemaining StealthySummaryExercises
Starting, Stopping, and Restarting ServicesCreating an HTTP Web Server with the Apache Web ServerOpenSSH and the Raspberry Spy PiExtracting Information from MySQL/MariaDBSummaryExercises
How the Internet Gives Us AwayThe Onion Router SystemProxy ServersVirtual Private NetworksEncrypted EmailSummaryExercises
Wi-Fi NetworksDetecting and Connecting to BluetoothSummaryExercises
What Is a Kernel Module?Checking the Kernel VersionKernel Tuning with sysctlManaging Kernel ModulesSummaryExercises
Scheduling an Event or Job to Run on an Automatic BasisUsing rc Scripts to Run Jobs at StartupAdding Services to Your Bootup via a GUISummaryExercises
Adding Python ModulesGetting Started Scripting with PythonListsModulesObject-Oriented Programming (OOP)Network Communications in PythonDictionaries, Loops, and Control StatementsImproving Our Hacking ScriptsExceptions and Password CrackersSummaryExercises

Content preview from Linux Basics for Hackers

16AUTOMATING TASKS WITH JOB SCHEDULING

Like anyone using Linux, the hacker often has jobs, scripts or other tasks, that they want to run periodically. You might, for example, want to schedule automatic regular file backups of your system, or maybe you want to rotate log files as we did in Chapter 11. The hacker, on the other hand, may also want to have their system run the MySQLscanner.sh script from Chapter 8 every night or while they’re at work or school. These are all examples of scheduling automatic jobs. Scheduling jobs allows you to run tasks without having to think about it, and you can schedule jobs to run when you’re otherwise not using ...