Could not fetch * metrics from squid instance: 403 error

[gogomasaru]

hello.
I am getting errors. Please help.

1. error messeges
   Printed every 30 seconds after squid-exporter starts.
   In Prometheus is searched.
   Only two metric

• squid_exporter_build_info
• squid_up

2024/03/15 06:16:44 Could not fetch counter metrics from squid instance: error getting counters: Non success code 403 while fetching metrics
2024/03/15 06:16:44 Could not fetch service times metrics from squid instance: error getting service times: Non success code 403 while fetching metrics
2024/03/15 06:16:44 Could not fetch info metrics from squid instance: error getting info: Non success code 403 while fetching metrics

2. env

1. firewall

• prometheus -> squid : port 9301

2. config

• acl prometheus src 'server IP'
• http_access allow manager prometheus

3. start script
   If I set it to the default or 127.0.0.1, I couldn't communicate with Prometheus, so I changed it to 0.0.0.0.

• squid-exporter -squid-hostname localhost -squid-port 8080 -listen 0.0.0.0:9301 &

4. squid version
   Squid Cache: Version 6.1

5. os version
   centos 7.9

[gogomasaru]

I only enabled port 8080 to listen, but I solved it by activating port 3128 as well.