search
HomeBackend DevelopmentPHP Tutorialcentos - nginx and php-fpm startup problem (not unable to start)

I encountered a very painful thing, centOS7.2, the lnmp environment installed by yum.
nginx is compiled and installed and placed in the /usr/local/nginx directory.
Problems encountered so far:
1. Starting through service nginx start and service php-fpm start is normal, closing everything is normal, but the php file cannot be found. As long as the php file is accessed, it is file not found, and accessing static files is normal. . There are no errors in the configuration file at all, as shown in 2.
2, start directly through /usr/local/nginx/sbin/nginx, that is, the executable file, and also directly start php-fpm, so there will be no problem, and access to any page will be normal.
3. The weirdest thing is that those opened directly through nginx can only be closed through kill or nginx -s stop, and cannot be closed through service or systemctl, while those opened through service can be closed through nginx -s stop. The same goes for php-fpm.
As follows:

<code>[root@vikie-pc web]# ps -ef |grep php
root      4988     1  0 16:24 ?        00:00:00 php-fpm: master process (/etc/php-fpm.conf)
www       4989  4988  0 16:24 ?        00:00:00 php-fpm: pool www
www       4990  4988  0 16:24 ?        00:00:00 php-fpm: pool www
www       4991  4988  0 16:24 ?        00:00:00 php-fpm: pool www
www       4992  4988  0 16:24 ?        00:00:00 php-fpm: pool www
www       4993  4988  0 16:24 ?        00:00:00 php-fpm: pool www
root      5020     1  0 16:25 ?        00:00:00 php-fpm: master process (/etc/php-fpm.conf)
www       5028  5020  0 16:25 ?        00:00:00 php-fpm: pool www
www       5030  5020  0 16:25 ?        00:00:00 php-fpm: pool www
www       5032  5020  0 16:25 ?        00:00:00 php-fpm: pool www
www       5033  5020  0 16:25 ?        00:00:00 php-fpm: pool www
www       5035  5020  0 16:25 ?        00:00:00 php-fpm: pool www
root      5231 27194  0 16:25 pts/1    00:00:00 grep --color=auto php

</code>

God, who can help me? It’s been a whole day.
I suspect it may be a problem with user permissions, but I don’t know much about it, so I’m completely confused

Reply content:

I encountered a very painful thing, centOS7.2, the lnmp environment installed by yum.
nginx is compiled and installed and placed in the /usr/local/nginx directory.
Problems encountered so far:
1. Starting through service nginx start and service php-fpm start is normal, closing everything is normal, but the php file cannot be found. As long as the php file is accessed, it is file not found, and accessing static files is normal. . There are no errors in the configuration file at all, as shown in 2.
2, start directly through /usr/local/nginx/sbin/nginx, that is, the executable file, and also directly start php-fpm, so there will be no problem, and access to any page will be normal.
3. The weirdest thing is that those opened directly through nginx can only be closed through kill or nginx -s stop, and cannot be closed through service or systemctl, while those opened through service can be closed through nginx -s stop. The same goes for php-fpm.
As follows:

<code>[root@vikie-pc web]# ps -ef |grep php
root      4988     1  0 16:24 ?        00:00:00 php-fpm: master process (/etc/php-fpm.conf)
www       4989  4988  0 16:24 ?        00:00:00 php-fpm: pool www
www       4990  4988  0 16:24 ?        00:00:00 php-fpm: pool www
www       4991  4988  0 16:24 ?        00:00:00 php-fpm: pool www
www       4992  4988  0 16:24 ?        00:00:00 php-fpm: pool www
www       4993  4988  0 16:24 ?        00:00:00 php-fpm: pool www
root      5020     1  0 16:25 ?        00:00:00 php-fpm: master process (/etc/php-fpm.conf)
www       5028  5020  0 16:25 ?        00:00:00 php-fpm: pool www
www       5030  5020  0 16:25 ?        00:00:00 php-fpm: pool www
www       5032  5020  0 16:25 ?        00:00:00 php-fpm: pool www
www       5033  5020  0 16:25 ?        00:00:00 php-fpm: pool www
www       5035  5020  0 16:25 ?        00:00:00 php-fpm: pool www
root      5231 27194  0 16:25 pts/1    00:00:00 grep --color=auto php

</code>

God, who can help me? It’s been a whole day.
I suspect it may be a problem with user permissions, but I don’t know much about it, so I’m completely confused

Solved, due to selinux permissions issue, php-fpm access has been blocked. You can turn off selinux or add the php-fpm service to the selinux whitelist

If the static page can be accessed, it is probably because the nginx configuration file is not configured properly. The configuration file is in the nginx installation directory/etc/nginx.conf

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
How can you check if a PHP session has already started?How can you check if a PHP session has already started?Apr 30, 2025 am 12:20 AM

In PHP, you can use session_status() or session_id() to check whether the session has started. 1) Use the session_status() function. If PHP_SESSION_ACTIVE is returned, the session has been started. 2) Use the session_id() function, if a non-empty string is returned, the session has been started. Both methods can effectively check the session state, and choosing which method to use depends on the PHP version and personal preferences.

Describe a scenario where using sessions is essential in a web application.Describe a scenario where using sessions is essential in a web application.Apr 30, 2025 am 12:16 AM

Sessionsarevitalinwebapplications,especiallyfore-commerceplatforms.Theymaintainuserdataacrossrequests,crucialforshoppingcarts,authentication,andpersonalization.InFlask,sessionscanbeimplementedusingsimplecodetomanageuserloginsanddatapersistence.

How can you manage concurrent session access in PHP?How can you manage concurrent session access in PHP?Apr 30, 2025 am 12:11 AM

Managing concurrent session access in PHP can be done by the following methods: 1. Use the database to store session data, 2. Use Redis or Memcached, 3. Implement a session locking strategy. These methods help ensure data consistency and improve concurrency performance.

What are the limitations of using PHP sessions?What are the limitations of using PHP sessions?Apr 30, 2025 am 12:04 AM

PHPsessionshaveseverallimitations:1)Storageconstraintscanleadtoperformanceissues;2)Securityvulnerabilitieslikesessionfixationattacksexist;3)Scalabilityischallengingduetoserver-specificstorage;4)Sessionexpirationmanagementcanbeproblematic;5)Datapersis

Explain how load balancing affects session management and how to address it.Explain how load balancing affects session management and how to address it.Apr 29, 2025 am 12:42 AM

Load balancing affects session management, but can be resolved with session replication, session stickiness, and centralized session storage. 1. Session Replication Copy session data between servers. 2. Session stickiness directs user requests to the same server. 3. Centralized session storage uses independent servers such as Redis to store session data to ensure data sharing.

Explain the concept of session locking.Explain the concept of session locking.Apr 29, 2025 am 12:39 AM

Sessionlockingisatechniqueusedtoensureauser'ssessionremainsexclusivetooneuseratatime.Itiscrucialforpreventingdatacorruptionandsecuritybreachesinmulti-userapplications.Sessionlockingisimplementedusingserver-sidelockingmechanisms,suchasReentrantLockinJ

Are there any alternatives to PHP sessions?Are there any alternatives to PHP sessions?Apr 29, 2025 am 12:36 AM

Alternatives to PHP sessions include Cookies, Token-based Authentication, Database-based Sessions, and Redis/Memcached. 1.Cookies manage sessions by storing data on the client, which is simple but low in security. 2.Token-based Authentication uses tokens to verify users, which is highly secure but requires additional logic. 3.Database-basedSessions stores data in the database, which has good scalability but may affect performance. 4. Redis/Memcached uses distributed cache to improve performance and scalability, but requires additional matching

Define the term 'session hijacking' in the context of PHP.Define the term 'session hijacking' in the context of PHP.Apr 29, 2025 am 12:33 AM

Sessionhijacking refers to an attacker impersonating a user by obtaining the user's sessionID. Prevention methods include: 1) encrypting communication using HTTPS; 2) verifying the source of the sessionID; 3) using a secure sessionID generation algorithm; 4) regularly updating the sessionID.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

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

Hot Tools

SublimeText3 Linux new version

SublimeText3 Linux new version

SublimeText3 Linux latest version

MantisBT

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment