https://github.com/sysulq/enhanced-limit-conn-nginx-module
An enhanced limit conn nginx module.
https://github.com/sysulq/enhanced-limit-conn-nginx-module
Last synced: 12 months ago
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An enhanced limit conn nginx module.
- Host: GitHub
- URL: https://github.com/sysulq/enhanced-limit-conn-nginx-module
- Owner: sysulq
- License: other
- Created: 2014-05-08T10:03:39.000Z (about 12 years ago)
- Default Branch: master
- Last Pushed: 2014-05-12T04:27:10.000Z (about 12 years ago)
- Last Synced: 2025-02-13T04:47:25.871Z (over 1 year ago)
- Language: C
- Homepage:
- Size: 152 KB
- Stars: 1
- Watchers: 3
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
Enhanced-limit-conn-nginx-module
================================
This is an enhanced limit conn nginx module with sysguard ability.
##Feature
1. Combined sysguard module from Tengine.
2. Enable to configure in main block.
3. No bad effect on the origin limit conn function.
4. Totally compatible with Nginx.
##Notice
1. Replace ngx_http_limit_conn_module with ngx_http_enhanced_limit_conn_module directly.
2. Without sysguard on, this module will act the same as ngx_http_limit_conn_module.
3. With sysguard on, this module will limit connections unless this system running nginx is overload.
##Configuration
```
limit_conn_zone $binary_remote_addr zone=addr:10m;
limit_conn addr 50;
sysguard on;
sysguard_load load=8;
sysguard_mem swapratio=20%;
sysguard_mem free=100M;
```
##Directives
###limit_conn_zone
同limit_conn模块一致
###limit_conn
同limit_conn模块一致
###sysguard
**syntax**: sysguard on | off
**default**: sysguard on
**context**: http, server, location, location if
开始系统状态监控功能，当超过所设置的阀值，则将limit_conn的限制连接数减半，以应对HTTP DOS攻击。
###sysguard_load
**syntax**: sysguard_load load=[0-10];
**default**: sysguard_load load=8
**context**: http, server, location, location if
设置系统CPU负载阀值
###sysguard_mem
**syntax**: sysguard_mem swapratio=[0-100]%;
sysguard_mem free=[0-1000]M;
**default**: sysguard_mem swapratio=20%;
sysguard_mem free=100M;
**context**: http, server, location, location if
设置系统内存阀值
##Contact me
Email: hnlq.sysu@gmail.com