我在用浏览器访问服务器上的php文件,然后用exec()删除某目录文件,提示权限不够,经过一顿搜索之后,我已根据很多文章的描述进行下面的权限设置,请问还有什么漏了设置的地方导致权限还是不够?
代码test.php:
$a = exec("rm /var/test/test.txt 2>&1",$result,$status);
print_r($result);
关于权限的服务器设置:
1、apache的httpd.conf中的user和group现在是apache。
2、利用visudo给了apache和root一样的权限,并把Defaults requiretty注释了。
3、将/var/test文件夹的权限给足,用户和用户组设为apache
4、test.txt的权限和用户、用户组也设置了
访问192.168.1.xxx/test.php还是不能删掉,还是提示这个:
回复内容:
我在用浏览器访问服务器上的php文件,然后用exec()删除某目录文件,提示权限不够,经过一顿搜索之后,我已根据很多文章的描述进行下面的权限设置,请问还有什么漏了设置的地方导致权限还是不够?
代码test.php:
$a = exec("rm /var/test/test.txt 2>&1",$result,$status);
print_r($result);
关于权限的服务器设置:
1、apache的httpd.conf中的user和group现在是apache。
2、利用visudo给了apache和root一样的权限,并把Defaults requiretty注释了。
3、将/var/test文件夹的权限给足,用户和用户组设为apache
4、test.txt的权限和用户、用户组也设置了
访问192.168.1.xxx/test.php还是不能删掉,还是提示这个:
通过
<code><?php echo shell_exec('whoami'); </code></code>
你就可以知道为何你没有权限删除了啊
另外, 在PHP中直接创建一个文件, 看看他是什么权限,也能看到你的php的执行用户和用户组
根据上面的权限配置,应该是能删除的呀。
LZ要不试试重启下apache服务器,然后再执行代码。
注意到php.ini里提供有一个open_basedir配置,也就是只有在open_basedir里的目录,PHP才能进行操作,所以如果你开启了open_basedir限制,那你就应该把/var/test这个目录加到open_basedir里,重启Apache:
<code>open_basedir="/tmp/:/var/www/html/:/var/test/" </code>
Linux上目录用冒号(:)分隔,Windows上用分号(;)分隔.
很奇怪,你把apache加入了visudo里,为什么sudo -u apache 还是不能删除文件?也就是说sudo并没有成功赋给apache这个用户了

ThesecrettokeepingaPHP-poweredwebsiterunningsmoothlyunderheavyloadinvolvesseveralkeystrategies:1)ImplementopcodecachingwithOPcachetoreducescriptexecutiontime,2)UsedatabasequerycachingwithRedistolessendatabaseload,3)LeverageCDNslikeCloudflareforservin

You should care about DependencyInjection(DI) because it makes your code clearer and easier to maintain. 1) DI makes it more modular by decoupling classes, 2) improves the convenience of testing and code flexibility, 3) Use DI containers to manage complex dependencies, but pay attention to performance impact and circular dependencies, 4) The best practice is to rely on abstract interfaces to achieve loose coupling.

Yes,optimizingaPHPapplicationispossibleandessential.1)ImplementcachingusingAPCutoreducedatabaseload.2)Optimizedatabaseswithindexing,efficientqueries,andconnectionpooling.3)Enhancecodewithbuilt-infunctions,avoidingglobalvariables,andusingopcodecaching

ThekeystrategiestosignificantlyboostPHPapplicationperformanceare:1)UseopcodecachinglikeOPcachetoreduceexecutiontime,2)Optimizedatabaseinteractionswithpreparedstatementsandproperindexing,3)ConfigurewebserverslikeNginxwithPHP-FPMforbetterperformance,4)

APHPDependencyInjectionContainerisatoolthatmanagesclassdependencies,enhancingcodemodularity,testability,andmaintainability.Itactsasacentralhubforcreatingandinjectingdependencies,thusreducingtightcouplingandeasingunittesting.

Select DependencyInjection (DI) for large applications, ServiceLocator is suitable for small projects or prototypes. 1) DI improves the testability and modularity of the code through constructor injection. 2) ServiceLocator obtains services through center registration, which is convenient but may lead to an increase in code coupling.

PHPapplicationscanbeoptimizedforspeedandefficiencyby:1)enablingopcacheinphp.ini,2)usingpreparedstatementswithPDOfordatabasequeries,3)replacingloopswitharray_filterandarray_mapfordataprocessing,4)configuringNginxasareverseproxy,5)implementingcachingwi

PHPemailvalidationinvolvesthreesteps:1)Formatvalidationusingregularexpressionstochecktheemailformat;2)DNSvalidationtoensurethedomainhasavalidMXrecord;3)SMTPvalidation,themostthoroughmethod,whichchecksifthemailboxexistsbyconnectingtotheSMTPserver.Impl


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

SublimeText3 Chinese version
Chinese version, very easy to use

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

Zend Studio 13.0.1
Powerful PHP integrated development environment

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool
