Red Hat 系统使用 CentOS的yum源配置文件，CentOS-Base.repo，Red Hat Enterprise Linux Server release 6.8 (Santiago)测试可用， release 6.5, release 6.9应该也可以

Mexican Hat函数是Gauss函数的二阶导数，Mexican Hat小波变换的优点是在时域和频率都有很好的局部化，是对称的，可用于连续小波变换。并且比较接近人眼的空间响应特征，可用于计算机视觉中图像边缘检测。但它不存在尺度函数，所以Mexican Hat小波函数不具有正交性，不是紧支撑的。在频率分辨率的性能上，优于Haar小波变换。

1）本套视频使用红帽官方教材，官方实验环境 2）本课程专为线上学习人员录制，课程紧凑，言简意赅，不啰嗦。 3）学Linux必须动手，本课程从搭建学习环境到教材讲解、实验演示一步到位 4）能学到花费上万块参加线下辅导才能学到的知识 5）RHCE8官方培训包含三本书，本课程为中级第二册134 6）本课程为中级课程，基础不好的学员请先学习入门级首册124。 7）学完该课程才能顺利学习后续的第三门门课 8）本课程包含KickStart自动安装、正则表达式、计划任务配置、高级磁盘管理、LVM逻辑卷管理、SELinux管理、网络管理、Firewall防火墙管理、Linux虚拟化等内容

Black.Hat.Python.Python.Programming.for.Hackers.pdf python hacker programming

Python hacker. Those are two words you really could use to describe me. At Immunity, I am lucky enough to work with people who actually, really, know how to code Python. I am not one of those people. I spend a great deal of my time penetration testing, and that requires rapid Python tool development, with a focus on execution and delivering results (not necessarily on prettiness, optimization, or even stability). Throughout this book you will learn that this is how I code, but I also feel as though it is part of what makes me a strong pentester. I hope that this philosophy and style helps you as well. As you progress through the book, you will also realize that I don’t take deep dives on any single topic. This is by design. I want to give you the bare minimum, with a little flavor, so that you have some foundational knowl- edge. With that in mind, I’ve sprinkled ideas and homework assignments throughout the book to kickstart you in your own direction. I encourage you to explore these ideas, and I would love to hear back any of your own implementations, tooling, or homework assignments that you have done. xviii Preface As with any technical book, readers at different skill levels with Python (or information security in general) will experience this book differently. Some of you may simply grab it and nab chapters that are pertinent to a consulting gig you are on, while others may read it cover to cover. I would recommend that if you are a novice to intermediate Python programmer that you start at the beginning of the book and read it straight through in order. You will pick up some good building blocks along the way. To start, I lay down some networking fundamentals in Chapter 2 and slowly work our way through raw sockets in Chapter 3 and using Scapy in Chapter 4 for some more interesting network tooling. The next section of the book deals with hacking web applications, starting with your own custom tooling in Chapter 5 and then extending the popular Burp Suite in Ch

OceanStor V3系列 存储系统 FC SAN组网及配置专题(Red Hat分册) 01

ns2 linux 在虚拟机中的安装教程详解

学习linux比较好的教程，Red Hat Linux 9.0 版本老了一点，不过的确很经典。所以把它传上来！！

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两款很精美的程序图标