Use of the linux server performance detection tool nmonToday, we will introduce nmon and nmon_analyser (a free tool for generating performance reports), a linux system server performance testing tool.I. IntroductionThe nmon tool can display all important performance optimization information on a single screen and dynam
Linux IO Current affairs Detection Tool IostatThe Iostat command detects the load condition of the Linux system IO device, and running Iostat displays statistics from the last time the command was run. Users can obtain the required statistics by specifying the number and time of the statistics.Iostat-d-K 1 10The parameter-D indicates that the device (disk) usage status is displayed; k Some columns that use
and security measures have been implemented. why are such vulnerabilities still occurring?
If the server receivesget、postIf there is a problem with the data, it should be that all the places in the project that adopt this method should have vulnerabilities. why is such a vulnerability only available in a few places?
The customer only looks at the detection data. how can I explain and communicate with them??
Please advise ~
Reply content:
The cust
1. Introduction of toolsInfer is a static program analysis tool that can be used to analyze Java, C, and objective-c programs, which are written in OCaml.Infer was first deployed on Facebook to analyze each line of code before it was released for mobile apps, and now Facebook uses this tool to analyze the Android, IOS apps that are being developed, including Facebook Messenger, Instagram and some other appl
PHP.ini Safety Configuration Detection Tool PCC Brief Introduction, PHP.INIPCC
Overview
Some time ago, in the work encountered an open-source program, the program is mainly used to detect the PHP configuration files in the presence of security risks, and put forward appropriate configuration recommendations, so that the PHP program more secure.
Use
This program is very simple to use, you can use it on
Sometimes the server is in a strange situation, suspect that the machine is compromised, you can use this chkrootkig tool:Chkrootkit is an open source security Detection Tool His official website is www.chkrootkit.org: http://pkgs.repoforge.org/chkrootkit/Download the corresponding package according to the OS version:wget http://pkgs.repoforge.org/chkrootkit/chkrootkit-0.49-1.el5.rf.x86_64.rpmStart detectio
Sneak in, see the snow forum above saw someone released a "Win7 Asterisk password Detection Tool", found that "there is a little" small use.The reason is not very useful: This program's ability is quite limited, can only see a portion of the software is not high-security password box inside the program,If you want to take it to see the QQ password, for granted, it is impossible.The program uses a very old t
.==1274== Copyright (C) 2000-2008, and GNU GPL ' d, by Julian Seward et al.==1274== for more details, rerun with:-V==1274====1274== ERROR summary:0 errors from 0 contexts (suppressed:1005 from 2)==1274== malloc/free:in use at exit:402,291 bytes in blocks.==1274== malloc/free:15,939 Allocs, 15,865 Frees, 6,281,523 bytes allocated.==1274== for counts of detected errors, rerun with:-V==1274== searching for pointers to not-freed blocks.==1274== checked 682,468,160 bytes.==1274====1274== 255 bytes in
of Leakcanary in Build.gradleDebugcompile ' com.squareup.leakcanary:leakcanary-android:1.3 ' releasecompile ' com.squareup.leakcanary: leakcanary-android-no-op:1.3 'One is the debug package, one is the release package, from the introduction of the structure of the package can also see the cluesSince leakcanary is testing the memory leak of the entire app, you need to start it in your applicationPackage Com.zimo.guo;import android.app.application;import com.squareup.leakcanary.leakcanary;/**
the heap state of memory allocation but not released each time.
6) whether it is the release version or the debugging version of the program, the above points can be achieved.
Here, we recommend that you use leakdiag, a tool developed by Microsoft.
Leakdiag is a tool used to monitor memory leaks. It can be used to precisely locate memory leaks until the code line. It uses Microsoft's detours technology t
Today I stumbled upon a Java memory Detection tool: Jstat
A search on the Internet, the parameters are as follows
Used to determine if there is a memory problem with the JVM. How to determine if the JVM garbage collection is normal. The general top directive basically doesn't meet this requirement because it mainly monitors the overall system resources and it is difficult to locate Java applications. J
Visual Leak Detector (VLD). The downloaded version is 1.9d. It supports vc6, vc7 (2003), and vc8 (2005). It is open-source and can be compiled based on the source code, 64-bit machines can compile 64-bit machines by themselves. However, in my machine (64-bit CPU, 64-bit windows7), 74-bit is not compiled separately.
VLD is only valid for the debug version of the program and does not work for the release version. Therefore, you can use VLD in a released version regardless of the Code introduction
Web site robots.txt probing tool parsero robots.txt file is a text file under the root directory of the Web site. Robots.txt is the first file to view when visiting a website in a search engine. When a search engine accesses a site, it first checks to see if a robots.txt exists in the root directory of the site.If present, the search engine will follow the contents of the file to determine the scope of the visit, and if the file does not exist, it wil
from Facts", a series of tests demonstrate that "CPU performance and memory size are not factors affecting SSD performance". The current CPU and memory performance is sufficient to handle the transmission needs of both mechanical and SSD drives. Take the memory, the dual channel DDR2 667 bandwidth is 667*2*64/8=10672MB/S=10.672GB/S, the single channel DDR3 800 bandwidth is 800*64/8=6400MB/S=6.4GB/S, moreover now is DDR3 1600, it is impossible to become the bottleneck of SSD transmission, netize
version= "1.0" encoding= "Utf-8"?> SourceanalyzerName= "My Custom Rule"> Description>Custom rule for demo purposes. Description> Rules> RuleName= "Avoidusingainclassnames"Checkid= "CR0001"> Context>Can't use a letterContext> Description>Fires when ' A ' was used in class name.Description> Rule> Rules> Sourceanalyzer> Set the XML file property: Compile as embedded (that is, compile into DLL), rules can put multiple rule but don't forg
Recently, I was writing a background service with a slightly larger amount of code, and there was a sign of Memory leakage during runtime. I found some code but still did not solve it completely.
It is said that Microsoft has its own memory detection tool. I use pure C ++. I tried it and wrote a tool to detect memory leakage in anger.
The principle is actually ve
files under the SDcard folder.If we want to see it, we can move it to the D-Drive via the command line.ADB pull/sdcard/my_trace_file.trace d:/Then callADB pull/sdcard/my_trace_file.trace d:/You can open the graphical interface of the test report:The meaning of each parameter in the table headernl Cpu time%: The percentage of the total time that the method was called during run time.incl Cpu time: The total number of times the method was executed (including the time it takes to invoke the child
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