的几台机器的日志总是打印不完,还好给抛了一个报错,信息如下:[root@yw_lvs2_backup etc]# tail -n 1000000 /var/log/messages-20130526 | grep “rate-limiting May 20 11:43:55 yw_lvs2_backup rsyslogd-2177: imuxsock begins to drop messages from pid 17131 due to rate-limiting May 20 11:44:05 yw_lvs2_backup rsyslogd-2177: imuxsock lost 328 messages from pid 17131 due to rate-limiting May 20 12:12:09 yw_lvs2_backup rsyslogd-2177: imuxsock lost 333 messages from pid 20261 due to rate-limiting May 23 18:18:23 yw_lvs2_backup rsyslogd-2177: imuxsock lost 335 messages from pid 20261 due to rate-limiting
to: 001_14_to_15 (executed) response-ratelimiting migrated up to: 002_15_to_10 (executed) migrating rate-limiting on database 'kong'... rate-limiting migrated up to: 000_base_rate_limiting (executed) rate-limiting migrated up to: 001_14_to_15 (executed) rate-limiting migrated up to: 002_15_to_10 (executed) rate-limiting
2. kong网关限流能力 kong 网关上有rate-limiting[5]插件,可以提供限流能力 功能性需求 非功能性需求 通过userid,ip,apikey 识别用户 低延时(<10ms) 基于配置的规则限制请求 系统接口: kong/plugins/rate-limiting/handler.lua/function RateLimitingHandler:access(conf) kong网关支持的上层设计 limit_conn_zone [4] lua-resty-limit-traffic: https://github.com/openresty/lua-resty-limit-traffic [5] rate-limiting : https://developer.konghq.com/plugins/rate-limiting/ [6] 限流插件: https://developer.konghq.com/plugins /rate-limiting/ [7] rate-limiting-advanced: https://developer.konghq.com/plugins/rate-limiting-advanced
2.1 启用速率限制 1、在服务上启用插件 $ curl -X POST http://kong:8001/services/{service}/plugins \ --data "name=rate-limiting config.hour=10000" 2、在路由上启用插件 $ curl -X POST http://kong:8001/routes/{route_id}/plugins \ --data "name=rate-limiting --data "config.hour=10000" 3、在消费者中启用插件 $ curl -X POST http://kong:8001/plugins \ --data "name=rate-limiting POST http://172.16.60.8:8001/routes/b0db420a-d3c3-45ee-8b25-11f3fd8ca283/plugins \ --data "name=rate-limiting 68282577c78a", "tags": null, "enabled": true, "protocols": ["grpc", "grpcs", "http", "https"], "name": "rate-limiting
在Kong网关中,限流功能是通过配置rate-limiting插件来实现的。当客户端请求API时,Kong网关会检查已配置的限流规则。根据这些规则,如果请求速率超过限制,请求将被阻止或拒绝。3. 开启下面指令开启了单client IP维度所有请求的限流,现在每分钟5次请求,超过就限制curl -i -X POST http://localhost:8001/plugins \ --data name=rate-limiting jq{ "data": [ { "enabled": true, "service": null, "consumer": null, "name": "rate-limiting example_service添加限流curl -X POST http://localhost:8001/services/example_service/plugins \ --data "name=rate-limiting
computer that you are logging into isn't hardened against brute-force login attempts, you can enable rate-limiting Do you want to enable rate-limiting (y/n) y 至此, Google Authenticator 的安装已经完成。
create -f kong-plugin-correlation-id-test.yaml 测试 curl -i -H "Host: example.com" $PROXY_IP/bar/sample rate-limiting X-Kong-Upstream-Latency: 0 X-Kong-Proxy-Latency: 4 Via: kong/1.1.2 里面多了RateLimit参数 参考 github脚本: kong request-id、kong rate-limiting
hello url: http://127.0.0.1:1980 routes: - name: hello paths: - /hello plugins: - name: rate-limiting hello url: http://127.0.0.1:1980 routes: - name: hello paths: - /hello plugins: - name: rate-limiting 而 Kong 3.0 在启用 rate-limiting 和 key-auth 插件后,10 轮 QPS 的平均值为 3977,相比只启用 rate-limiting 插件时 QPS 平均值 4810
++++++++++++++++++++++++++++++++++ imuxsock begins to drop messages from pid 6292 due to rate-limiting 2. http://lists.adiscon.net/pipermail/rsyslog/2011-April/028307.html 3. http://www.rsyslog.com/tag/rate-limiting
computer that you are logging into isn’t hardened against brute-force login attempts, you can enable rate-limiting Do you want to enable rate-limiting (y/n) y # 安全相关,默认继续 9、xshell终端配置基于google验证登陆linux主机 xshell终端的连接方式改为
computer that you are logging into isn't hardened against brute-force login attempts, you can enable rate-limiting Do you want to enable rate-limiting? (y/n) y #是否限制尝试次数,每30秒只能尝试最多3次,这里选择y进行限制 ? ? ?
computer that you are logging into isn't hardened against brute-force login attempts, you can enable rate-limiting Do you want to enable rate-limiting (y/n) y 密钥生成好之后,下面修改PAM中关于ssh的配置,编辑/etc/pam.d/sshd文件: # vim /etc/
": null}4.3 启用插件[root@VM-4-13-centos ~]# curl -s -X POST http://localhost:8001/plugins --data name=rate-limiting "service": null, "id": "8030270c-d5f8-4f87-8342-f400376c8975", "name": "rate-limiting", "consumer"
computer that you are logging into isn't hardened against brute-force login attempts, you can enable rate-limiting Do you want to enable rate-limiting (y/n) y #是否限制尝试次数,每30秒只能尝试最多3次,这里选择y进行限制 五、手机安装Google身份验证器,通过此工具扫描上一步生成的二维码图形
关于限流,kong 使用了 rate-limiting 插件,它可以在 service、route、consumer 不同粒度上控制请求,配置非常简单。 curl -X POST http://kong:8001/services/{service}/plugins \ --data "name=rate-limiting" --data Route 的示例 curl -X POST http://kong:8001/routes/{route}/plugins \ --data "name=rate-limiting"
(y/n) #一直确认下去 Do you want to enable rate-limiting?
ldap-auth 1002 basic-auth 1001 hmac-auth 1000 ip-restriction 990 request-size-limiting 951 acl 950 rate-limiting
computer that you are logging into isn't hardened against brute-force login attempts, you can enable rate-limiting Do you want to enable rate-limiting (y/n) y 2、配置PAM文件 修改PAM配置文件: nano /etc/pam.d/sshd 在相应的位置添加auth required
are logging into isn't hardened against brute-force" echo -e "\033[31mlogin attempts, you can enable rate-limiting limits attackers to no more than 3 login attempts every 30s." echo -e "\033[31mDo you want to enable rate-limiting
page=2&per_page=100 https://developer.github.com/v3/#rate-limiting 5. 状态码 业务状态码 http状态码