apache限速mod_bw

Bertha 。 2022-05-23 07:24 250阅读 0赞

使用mod\_bandwidth可以实现并发Ip数和带宽的限制，带宽流量控制模块

安装

`wget http://bwmod.sourceforge.net/files/mod_bw-0.7.tgz`

`tar zxvf mod_bw-0.7.tgz`

`cd mod_bw`

`apxs -c -i mod_bw.c`

配置

1 全局开启

vim /etc/httpd/conf.modules.d/mod\_bw.conf

1.  Load bw\_mod modules/mod\_bw.so
2.  BandWidthModule On 
3.  ForceBandWidthModule On 
4.  BandWidth all 102400 \#限制为100K 
5.  MaxConnection all 100 \#限制为100个连接数

2 目录限速

`LoadModule bw_module modules/mod_bw.so`

`<virtualHost *:80>`

`` `ServerName vhost1.cszhi.com`

`` `DocumentRoot /var/www/vhost1`

`` `BandwidthModule On`

`` `ForceBandWidthModule On`

`` `Bandwidth all 1024000`

`` `MinBandwidth all 50000 ＃每个客户端最高速度可达50KB`

`` `LargeFileLimit * 500 50000`

`` `MaxConnection all 6`

`</virtualHost>`

安装中可能遇到的问题

1 提示如下错误：

/mnt/vdd/mod\_bw.c: In function 'get\_bw\_rate':  
/mnt/vdd/mod\_bw.c:567:59: error: 'conn\_rec' has no member named 'remote\_addr'

if (apr\_ipsubnet\_test(e\[i\].x.ip, r->connection->remote\_addr)) \{

这个错误是由于apache2.2 到2.4 api有所改变，详细如下：

[http://httpd.apache.org/docs/2.4/developer/new\_api\_2\_4.html][http_httpd.apache.org_docs_2.4_developer_new_api_2_4.html]

vim mod\_bw.c

把所有的remote\_ip和remote\_addr分别替换成client\_ip和client\_addr

:%s/remote\_ip/client\_ip/

:%s/remote\_addr/client\_addr/

重新执行 apxs -i -c -a mod\_bw.c

2 httpd服务重启后发生错误

`[root@vps httpd]# /etc/init.d/httpd restart`

`Stopping httpd: [FAILED]`

`Starting httpd: httpd: Syntax error on line 203 of /etc/httpd/conf/httpd.conf: Cannot load /etc/httpd/modules/mod_bw.so into server: /etc/httpd/modules/mod_bw.so: undefined symbol: apr_atomic_cas`

`` `[FAILED]`

修改mod\_bw.c

`#ifdef APR_MAJOR_VERSION //添加这行`

`#if (APR_MAJOR_VERSION < 1)`

`` `#define apr_atomic_inc32 apr_atomic_inc`

`` `#define apr_atomic_dec32 apr_atomic_dec`

`` `#define apr_atomic_add32 apr_atomic_add`

`` `#define apr_atomic_cas32 apr_atomic_cas`

`` `#define apr_atomic_set32 apr_atomic_set`

`#endif`

`#endif //添加这行`

3 apxs没有安装