Operation and Maintenance
Linux Operation and Maintenance
What are the Debian Nginx configuration skills?
Here are some practical tips when configuring Nginx on a Debian system:
Basic structure of configuration files
- Global Settings : Define behavioral parameters that affect the entire Nginx service, such as the number of worker threads and the permissions of running users.
- Event handling part : Deciding how Nginx deals with network connections is a key configuration for improving performance.
- HTTP service part : contains a large number of settings related to HTTP service, and can embed multiple servers and location blocks.
Core configuration options
- worker_connections : Defines the maximum number of connections that each worker thread can handle, usually set to 1024.
- multi_accept : Activate the multi-connection reception mode and enhance the ability of concurrent processing.
- sendfile : Enable sendfile function to improve file transfer speed.
- keepalive_timeout : Sets the timeout time to keep the connection, which helps optimize connection management.
Advanced configuration strategy
- Load balancing : Nginx provides a variety of load balancing methods, including polling, minimum connection, IP hashing, etc., which can be selected according to actual needs.
- Static resource service : effectively provides static content such as pictures, style sheets and script files.
- Request control : limits the number of parallel requests and request speed of a single IP, and supports IP-based access control.
System performance tuning
- Adopt the epoll mechanism : enable the epoll event notification mechanism in the event processing part to improve event processing efficiency.
- Adjust the number of worker threads : Automatically or manually adjust the number of worker threads according to the number of server CPU cores to achieve the best resource utilization rate.
- Enable caching function : configure HTTP cache reasonably to relieve the pressure on the backend server.
Safety enhancement measures
- Rate limit : Use limit_req_zone and limit_req instructions to constrain the client's request rate and prevent distributed denial of service attacks.
- IP access control : Use allow and deny instructions to prevent access to certain IP addresses or IP segments.
Logging and monitoring
- Detailed logging : Carefully designed access logs and error logs for daily monitoring and problem diagnosis.
- Customized log format : Custom access log format, including important information such as client IP address, access time, request path, etc.
The above content summarizes some basic methods for configuring Nginx in the Debian environment, and hopes to help you.
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