Questions tagged [monitoring]

Applications or appliances that observe machines, systems and networks to find problems and notify administrators.

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Prometheus scraping halted for last 20 minutes

My prometheus dashboard has values missing for the last 20 minutes, no matter when I query (container_cpu_usage_seconds_total) it. What could be the reason behind this? Screenshot of dashboard
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HostTracker API update already present domain

I have already present domain on host-tracker.com Using this POST /api/web/v1/tasks/http I can create a domain monitoring with DNS exp, SSL check, etc... Using PUT, I should update a domain, according ...
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What is the best way to set up Prometheus + Alertmanager with a HA

I have a monitoring solution that uses Prometheus as a scraper and a data storage, Grafana as a visualiser and Alertmanager as an alerting tool. This all is running on a single server. However, there'...
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Obtain statistics of CPU and memory usage from one cgroup

Context I have a system in which I have to check periodically usage: relative (percents) for CPU and absolute (GB) for memory. How it's currently implemented Language we're using is python. system-...
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PRTG PowerShell Remoting Requirements for Custom EXE/Script Advanced Sensor

I've created a script for checking the TLS certificate assigned to an SMTP Relay server which supports SMTPS. The code is available here if that's of interest. The documentation says that powershell ...
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LSI Storage Authority (Windows) losing registered ESXI after reboot

I have an issue with the RAID Monitoring Software LSA for Windows (LSI Storage Authority). I can add an ESXI manually and manage/monitor the RAID controller fine, but as soon as im rebooting the ...
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Pink in memory htop

What does the pink color in memory htop means and how can I reset it? You can see example here: htop preview
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Can Wazuh work for a single agent with less than the stated minimum hardware requirements?

I was surprised to find that the Wazuh server requirements state 2gb and 2 cores are the minimum requirements - but I wonder how much these numbers are tailored towards supporting multiple agents. Is ...
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Monit: Editing in-built alert text

i have the monit tool setup on a linux box, and it's been monitoring apache and the overall system for a few months. The apache config file is: check process apache with pidfile /var/run/httpd/httpd....
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How to monitor specific NGINX error codes with Logwatch

I've just started implementing NGINX rate limiting, and need to monitor when rate limiting is actually happening on a server. I found out Logwatch will send daily logs by email which sounds perfect. ...
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Linux Auditd monitoring of file operations in mounted folder

I have multi node kubernetes cluster and I would like to monitor file operations that are made by containers in mounted persistent volume. I found the all PV data are located at nodes in /var/lib/...
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GKE metrics about CPU usage of `kube-apiserver`

I'm trying to benchmark the load on the Kubernetes API that two different deployments cause. I have tried the two following ways of accomplishing this: Evaluate the Prometheus metric ...
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haproxy - treat down as normal state

Is it possible for haproxy to report status for frontend/backend/server as normal, even if checks fail? I have three backend servers and it's normal for these to be all offline, but if haproxy reports ...
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Zabbix how to monitor multiple databases server on one host?

I am new to zabbix and I am trying to monitor multiple mysql databases. I have one server with two docker container that each have one mysql database. To monitor the first database I used the MySQL by ...
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Google monitoring shows extra VMs and I cannot see details or delete those!

Monitoring shows me more VMs than we have actually created and they show load and even alerts on CPU usage. I cannot access any details for those VMs nor I can delete them. Any ideas? Have you ...
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How to perform healthcheck on NFS clients connectivity from the NFS-Server?

I have three Debian 11 servers let's call them nfs-server which is the NFS server, nfs1, and nfs2 which are the NFS clients. I want to perform some sort of health check from the NFS server to ensure ...
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Ansible security best practices for monitoring

I have several servers at home. I would like to have one computer that will monitor activity on those and notice me if something is wrong. For that reason I install ansible there. In order to have ...
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How to get cpu hardware id on Android systems?

I need get CPU voltage and temperature from /sys/class/hwmon but need find the CPU ID to find the correct directory, by example: $ ll /sys/class/hwmon/hwmon2/device lrwxrwxrwx 1 root root 0 sep 3 13:...
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How to monitor memory usage continuously with Linux?

I have a daemon service application runing a Ubuntu server(20.04.1). The total phisical memory is 2G, and the swap space is 4G. Sometime my service was killed by OS quietly, eventhough I add ...
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Apache mod_status, full machne readable details

Apache's mod_status (i.e /server-status) outputs HTML, including what HTTP clients are accessing what thing right now. There is a text format (/server-status?auto), but that doesn't include the ...
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How do i use the mail CLI? [closed]

I want to make a simple bash script that curls websites and sends out an email if the HTTP_Code is above 299. I am not very fond of the mail CLI tool. I want to use a SMTP Server to send the ...
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MSSQL: Service is unavailable

I'm whipping up a demo of Zabbix in our environment and have some trouble monitoring a SQL server. The error: 'MSSQL: Service is unavailable' > 'The TCP port of the MS SQL Server service is ...
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Monitoring tool for remote borg repository

I am currently using Borg Backup which is connected to a remote repository hosted in Hetzner. Borg is being run daily via cron. While I place some log files to see if backup is working, I would like ...
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How to filter by service groups in the monit web frontend?

Monit has a feature called "service groups" (https://mmonit.com/monit/documentation/monit.html#SERVICE-GROUPS). It allows you to filter by groups using the CLI. But is it possible to use ...
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GCP Cloud monitoring for Container Optimized OS

I'm using GCP compute Engine with Container Optimized OS. I enabled Logging and Monitoring on that instance. Logging and Monitoring has write permissions But it always show Not applicable for ...
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How do you limit Exceptions loggings in production

First, please note this might be a JavaScript question, on Node or on the browser, or a Ruby question, whether logging is in files or to the database, etcetera. This is why I'm asking in serverfault; ...
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PromQL range vector, but only if there's data from the start of the range? (for a new metric)

Prometheus can return all values for a time (e.g. api_counter[1h] for all values in the last hour). When the metric is new, there will not be 1 hour of data points. Is it possible to write a promql ...
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Zabbix Server configuration Inquiry

I hope I’m posting in the right place. So, I have a question. I’m trying to set up a simple network monitor (Zabbix) in VirtualBox to monitor the hosting machine. I have everything set up, but the ...
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Monitor free space with monit ... but only if the folder is mounted

For my backup, external disk space is mounted via cronjob as /mnt/backup on a Ubuntu machine every night. When the backup is complete, the disk is unmounted. No need to expose the backup drive to ...
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Huawei Switch CE6810LI & Router Huawei NE40E - SNMP Monitoring with ELK Stack

I would like to discuss my case with you to see if I can find a way to solve the problem that I am encountering when monitoring network traffic and other aspects of our Huawei core devices. My case is ...
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Monitor session duration on AWS Cognito

I am using AWS Amplify to host an Angular application and using Cognito user pool. I have created a dashboard on Amazon Quicksight for BI purposes. One of the metrics that I want to monitor is how ...
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How can I get an alert me if ping is not sent from windows service I created?

Let me explain the problem. I created a windows service that should run a method every minute, but it seems to fail at random times for an unknown reason. The application doesn't crash but some how a ...
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Can't find Amplify access logs in CloudWatch log groups

I'm creating a CloudWatch dashboard and I want to monitor Amplify access logs beside other metrics. I can find the access logs inside the Amplify dashboard (Screenshot below) but I can't find the same ...
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Need help configuring SOF-ELK Sans to parse IIS W3C logs

How can I get the SOF-ELK VM to inject the IIS logs like the httpd logs. Here are my filebeats yml configs: /etc/filebeat/filebeat.yml filebeat.config.inputs: enabled: true path: /usr/local/sof-...
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How to check if RAM I/O bandwidth is a bottleneck for my application on Linux Ubuntu?

I have two Ubuntu systems (A & B) The same application performs much better on the system A even though A has less cores and less RAM. On System B, there are many more cores and much more RAM but ...
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How to get Kafka consumer metrics with JMX exporter for Prometheus?

Kafka version: 3.1 I didn't find a way to get Kafka consumer metrics as described in Kafka documentation from my Kafka servers. Even if I leave the "rules" section empty in the config of the ...
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How to see which ports a process is using?

While testing our software, a large corporate customer was able to detect the third-party licensing software using port 137. Up until this point we have only been aware of the license software using ...
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Is there a way to monitor remotly multiple windows server for hardware performance? [closed]

We have 5 server installed as VM with "Windows Server 2016" on VMWware. These servers are configured as RDS, means multiple users are working on it. Users which are connected on these ...
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How to monitor outbound bandwidth usage in Linux?

Currently I use vnstat to monitor my bandwidth usage. What I want to achieve is to get data for making the decision whether to stay in a more expensive but unlimited cable based plan, or to switch to ...
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Set INFO/ERROR priority for messages logged to journal via stdout and stderr?

We have many production apps (first and third-party) that leave logging up to the process that runs the app and just log to stdout for INFO and stderr for ERROR logs (ie only 2 log priorities: INFO|...
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How to get hard disk status from RAID with SmartCTL for monitoring purposes?

I have a FreeBSD with a RAID running 3 Hard Disks. I was given the challenge to monitor its RAID - If a hard disk fails or it presents some problem i need to know. So, the first thing i am doing right ...
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nagios-nrpe-server output different vs running locally

To be sure I don't have any double definition of the command, I created a new debug command name in the nrpe config /etc/nagios/nrpe.d # grep -R debug debug.cfg:command[debug_check_disks]=/usr/lib/...
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Change url for thruk

following the official documentation, they report that to modify the thruk url, you have to change the url_prefix, I have added the following information in the path /etc/thruk/thruk_local.conf ...
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Secure kubernetes monitoring in Prometheus using service discovery

I'm currently using Prometheus to scrape metrics from a /metrics endpoint on my pods. In order to identify the pods I'm using kubernetes service discovery which discovers the pods and targets them ...
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How can I monitor asp net application?

I have a web application (asp.net) with a SQL database used by many users (> 10k) deployed over three different machines. What are the factors to monitor like traffic or latency, etc? I've already ...
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Is it possible to limit WMI privileges with certain class or property?

I'm interested in gathering Win32_Battery class data from User machines. It works well if I provide root/cimv2 rights to the account which is used to send a Get-WmiObject query. But I'd like to ...
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Debug Prometheus Blackbox Exporter http_2xx probs

We are using the Prometheus Blackbox Exporter (blackbox_exporter, version 0.19.0) to check HTTP endpoints. Now we need to implement a check with the fail_if_body_matches_regexp. The check should ...
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Is there a tool to check and manage file permissions?

I developed a set of rules for file and directory owner and permissions for our company server. E.g.: Projects/: permission 750, owner root, group internal Projects/* (directories): permission 2770, ...
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GKE collector metrics missed some metrics

[enter image description here][1]On the cluster in GKE, we have a CronJob deployed, which sends prometheus metrics to the handler. A collector is launched to it using PodMonitor. I understand that it ...
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Possible exposable asset type on Google Cloud

One of the ways to secure a cloud environment is to monitor all of the assets that we have. Recently, I made a script to get information regarding those assets by using GCP API, but I need to do it ...

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