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Allen Ma's Blog

Linux, C and Networking

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原创 Vim plugin installation

svnj.vim README.md ##Installation ###Options 1: (Pathogen Users) cd ~/.vim/bundle git clone git@github.com:juneedahamed/svnj.vim.git ###Option 2: // This option is ok. git clone git@github.com:juneedahamed/svnj.vim.git copy files from svnj.vim/plugin

2021-02-02 02:22:05 333

原创 Ubuntu 20.04.1 LTS cscope设置

OS: Ubuntu 20.04.1 LTS vim version: VIM - Vi IMproved 8.1 (2018 May 18, compiled Apr 15 2020 06:40:31) And it supports cscope feature from the output of “vim --version”. Steps: 1.apt-get install cscope 2.cscope --version 3.Use a similar script as gentags i

2021-01-01 17:38:16 491

原创 Free and Powerful Merge Tools

1.Beyond compare Commercial software, but not that expensive 2.WinMerge https://blog.youkuaiyun.com/hantiannan/article/details/4629415 3.Meld

2020-12-30 16:41:48 125

转载 Microsoft Hyper-V on Win10

1.Enable Hyper-V feature using powershell Type powershell in your Start Menu search bar, right-click the Best Match and select Run as Administrator. Now, input the following command: DISM /Online /Enable-Feature /All /FeatureName:Microsoft-Hyper-V 2.Tempo

2020-11-23 10:40:17 156

原创 Vocabulary Group10

assumption n.假定之事;承担,担任 Their assumptions of an air of confidence fooled nobody. 他们装出信心十足的样子却欺骗不了任何人。 air (MANNER) noun [S] manner of appearance: She has an air of confidence about her. 她对自己充满信心。 ...

2020-05-23 15:48:43 336

原创 Vocabulary Group 8

argue We argued her into joining us. arise vi occur Accidents often arise from carelessness. array n.展示;一系列 Banners are arrayed on the wall. vt.装扮 People are all in holiday array. n.队列;排列;阵势;服装 ...

2020-02-23 21:45:55 151

原创 Install & Configure Oracle Using Response File -- a Fast Deployment Method

./runInstaller -silent -responseFile /home/oracle/database/response/db_install.rsp -ignorePrereq

2020-02-13 15:06:43 138

原创 Note of IELTS 4 Listening Tasks

Test 1 Section 3 catch/get/grab/take hold of sth/sb: to start holding sth or sb eg: He took hold of one end of the carpet and tugged. I just managed to grab hold of Lucy before she fell in the pool.

2020-01-29 10:15:42 233

原创 How I Use Linux perf to Optimize the Performance of the Programe.

At beginning, the programe can only achieve 1.7Mbps under stress test after adding new features. 1.perf stat $ sudo perf stat -p 27357 ^C Performance counter stats for process id '27357': 212...

2019-12-29 15:54:32 151

原创 How I Solved Mysql being Unable to be Parsed on Suricata?

These days, I’m extending Mysql detecting & parser on Suricata. Everything works well while replaying the pcap file with the following command: bin/suricata -c etc/spiderflow.yaml -r $1 -k none Ho...

2019-11-21 16:36:25 197

原创 Logger Registration & Usage in Suricata

Logger is the output part of Suricata, which outputs various valuable analysis results to the outside of Suricata. Firstly, let’s begin with the usage of it. 1.Usage OutputLoggerLog() in FlowWorker():...

2019-11-15 14:31:39 184

原创 packet direction related function in Suricata

1.FlowHandlePacketUpdate Assume the first packet is in to-server direction. 2.StreamTcpPseudoPacketCreateDetectLogFlush 3.StreamTcpPacketSwitchDir Change the direction of packet while receiving SYN/AC...

2019-11-14 17:16:04 153

原创 How to Disable SSL Encryption with mysqlclient lib on mysql-commercial-server 8.0.15?

Environment: mysql-commercial-client-8.0.15-1.1.el7.x86_64.rpm mysql-commercial-devel-8.0.15-1.1.el7.x86_64.rpm mysql-commercial-server-8.0.15-1.1.el7.x86_64.rpm mysql-commercial-common-8.0.15-1.1.e...

2019-07-25 09:37:32 266

原创 Turn off authentication-plugin on Mysql 8.0 commercial server

Mysql 8.0 commercial server uses caching_sha2_password as the default authentication plugin as you can see in xxxx.user. Meanwhile, Mysql also restricts the specified users to log in from the specifie...

2019-07-23 10:14:17 208

原创 How to use POSIX under Windows?

Native Windows system has poor support for C and POSIX currently. Maybe MS has noticed this situation and begins converting it. There are two methods to utilize POSIX under Windows. 1.windows subsyste...

2019-06-23 21:32:41 167

原创 Why I restart writing tech blog?

Practise English writing skills. Structurize my knowledge to help me to master the special domain skills. Earn reputation among the peers.

2019-06-13 14:18:45 197

原创 2014年未来网络与SDN峰会上,南京WFNEX联合创始人马振华做了主题为《SDN BRAS——宽带远程接入SDN解决方案》的演讲

链接:http://www.wfnex.com/?p=707

2014-12-11 21:41:38 1022

原创 C++与Java在一些语言特性上的异同

  引言:据说程序员面试时会问到C++与Java的异同,而比较本身就有助于加深印象。我从两本书中作了一些摘录,更高级的语言特性还有待朋友们的补充。C++与Java在如下一些语言特性上的异同1. 访问修饰符(private, public, protected);C++ NOTEAs it happens, protected features in Java are visible

2009-04-12 20:07:00 452

安全产品visio图标

安全产品visio图标,包含Checkpoint和Bosch Security Systems。有病毒、黑客的logo,非常适合写场景类的解决方案。

2020-04-24

20141209_SDN大会演讲_SDN BRAS_宽带远程接入SDN解决方案

2014未来网络与SDN峰会,WFNEX马振华的演讲《SDN BRAS——宽带远程接入SDN解决方案》。阐述了SDN BRAS面临的市场和政策机遇,提出共建中国SDN BRAS开放生态系统的构想,邀请合作伙伴和WFNEX展开形式多样的合作,包括投资、技术合作和渠道合作。介绍了WFNEX SDN BRAS的一些情况,包括用户、相对现有BRAS产品的优势、组网、架构与特性,SDN控制器WFNOS。

2015-09-22

TR-IEC104.pdf

IEC 60870-5-104分析报告, Description and analysis of IEC 104 Protocol Faculty of Information Technology Brno University of Technology Brno, Czech Republic December , 2017

2019-07-26

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