---

一、准备工作

1.1 安装或关闭以下服务

关闭防火墙等
linux时间校对

1.2 本次安装环境

配置信息	说明
服务器IP地址	192.168.1.10
交换机IP地址	192.168.10.1
上网行为管理IP地址	192.168.20.1
系统版本	CentOS7.4
内核	ml-3.10.0
go版本	1.19.4

在本次安装前，先安装好prometheus+grafana。
prometheus+grafana安装文档

二、安装blackbox_exporter

2.1 下载并解压

wget -c  https://github.com/prometheus/blackbox_exporter/releases/download/v0.23.0/blackbox_exporter-0.23.0.linux-amd64.tar.gz
tar xf blackbox_exporter-0.23.0.linux-amd64.tar.gz

2.2配置

mv blackbox_exporter-0.23.0.linux-amd64 /home/blackbox_exporter   #修改文件名称
cd /home/blackbox_exporter/         ./blackbox_exporter    #启动snmp_exporter

2.3测试

访问测试http://192.168.1.10:9115/

三、配置blackbox_exporter

3.1配置blackbox.yml

 vim /home/blackbox_exporter/blackbox.yml
modules:http_2xx_ip4:prober: httptimeout: 5shttp:preferred_ip_protocol: "ip4"http_2xx:prober: httphttp_post_2xx:prober: httphttp:method: gettcp_connect:prober: tcppop3s_banner:prober: tcptcp:query_response:- expect: "^+OK"tls: truetls_config:insecure_skip_verify: falsegrpc:prober: grpcgrpc:tls: truepreferred_ip_protocol: "ip4"grpc_plain:prober: grpcgrpc:tls: falseservice: "service1"ssh_banner:prober: tcptcp:query_response:
"/home/blackbox_exporter/blackbox.yml" 54L, 1004C                                                                 1,1          顶端
modules:http_2xx_ip4:prober: httptimeout: 5shttp:preferred_ip_protocol: "ip4"http_2xx:prober: httphttp_post_2xx:prober: httphttp:method: gettcp_connect:prober: tcppop3s_banner:prober: tcptcp:query_response:- expect: "^+OK"tls: truetls_config:insecure_skip_verify: falsegrpc:prober: grpcgrpc:tls: truepreferred_ip_protocol: "ip4"grpc_plain:prober: grpcgrpc:tls: falseservice: "service1"ssh_banner:prober: tcptcp:query_response:- expect: "^SSH-2.0-"- send: "SSH-2.0-blackbox-ssh-check"irc_banner:prober: tcptcp:query_response:- send: "NICK prober"- send: "USER prober prober prober :prober"- expect: "PING :([^ ]+)"send: "PONG ${1}"- expect: "^:[^ ]+ 001"icmp:prober: icmpicmp_ttl5:prober: icmptimeout: 5sicmp:ttl: 5

3.2 开启blackbox_exporter

./blackbox_exporter &  
curl 'localhost:9115/probe?target=baidu.com'   #开启后，可以测试下是否正常。返回probe_success 1则正常

3.3配置prometheus.yml

vim /usr/local/prometheus/prometheus.yml -  job_name: "http"metrics_path: /probescrape_interval: 60sparams:module: [http_2xx_ip4]static_configs:- targets:- https://www.baidu.com- https://google.comrelabel_configs:- source_labels: [__address__]target_label: __param_target- source_labels: [__param_target]target_label: instance- target_label: __address__replacement: 192.168.1.10:9115

配置完毕后启动prometheus.yml，访问192.168.1.10:9090，选择status→targets查看

四、其他

4.1server returned HTTP status 400 Bad Request 报错

解决
prometheus.yml 中将replacement:127.0.0.1:9115修改成本机地址

4.2 google.com检测码返回probe_success 0

参考这篇文章添加以下配置
modules:
http_2xx_ip4:
prober: http
timeout: 5s
http:
preferred_ip_protocol: “ip4”