Openssl certificate error creating node_exporter config

Observability And Monitoring
#1

I’m getting the following error while accessing the node_exporter metrics

[manu@Inspiron-14-5430 bin (⎈|test:default)]$ curl https://localhost:9100/metrics
curl: (35) error:0A00010B:SSL routines::wrong version number
[manu@Inspiron-14-5430 bin (⎈|test:default)]$

I’m using ubuntu 22.04

[manu@Inspiron-14-5430 bin (⎈|test:default)]$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 22.04.4 LTS
Release:	22.04
Codename:	jammy
[manu@Inspiron-14-5430 bin (⎈|test:default)]$ 


Building dependency tree... Done
Reading state information... Done
curl is already the newest version (7.81.0-1ubuntu1.16).
openssl is already the newest version (3.0.2-0ubuntu1.15).

Do we need to configure RP (nginx RP) to make this work?

#2

This issue was resolved. basically what we have to do is when we configure the node exporter service file, need to add the following line
instead of --web.config should add --web.config.file
sample configuration file

[Unit]
Description=Node Exporter
Wants=network-online.target
After=network-online.target

[Service]
User=node_exporter
Group=node_exporter
Type=simple
ExecStart=/usr/local/bin/node_exporter --web.config.file=/etc/node_exporter/config.yml
#web.config.file=/etc/node_exporter/config.yml

[Install]
WantedBy=multi-user.target
~
#3

How did you fixed it
I am not able to curl followed same configuration as yours

 curl -k https://localhost:9100/metrics 
curl: (35) error:0A00010B:SSL routines::wrong version number
sunkara@sunkara-VivoBook:~/Exporter/node_exporter-1.9.0.linux-amd64$ curl https://localhost:9100/metrics 
curl: (35) error:0A00010B:SSL routines::wrong version number
#4

A quick web search suggests that the exporter is configured to serve HTTP rather than HTTPS, and curl is unhappy about that.