From 0e0ecf7642b4032ee9ca377e5828a9c1201f098f Mon Sep 17 00:00:00 2001
From: "StarsL.cn" <starsliao@163.com>
Date: Thu, 19 May 2022 03:13:02 +0800
Subject: [PATCH] Update FAQ.md

---
 docs/FAQ.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/docs/FAQ.md b/docs/FAQ.md
index 35b57d3..de3b3ec 100644
--- a/docs/FAQ.md
+++ b/docs/FAQ.md
@@ -11,3 +11,12 @@ docker-compose logs --tail=10 -f flask-vue
 进入容器，执行:
 nc -vz {ip} 8500
 ```
+### blackbox_exporter监控某个站点有异常，如何debug
+- 在blackbox检测该站点的链接末尾加上`&debug=true`，请求即可，例如：
+```
+http://10.0.0.26:9115/probe?module=http_2xx&target=https%3A%2F%2Fpayapp.weixin.qq.com&debug=true
+```
+- 在blackbox_exporter的启动命令增加参数`--log.level=debug`，即可开启blackbox_exporter的debug日志，systemd方式启动的日志追踪方式：
+```
+journalctl -u blackbox_exporter.service -n20 -f
+```