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Questions tagged [monitoring]

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

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34 views

How can I force Zabbix to warn about disaster alert after 4 attemps?

I use Zabbix 3.4 and I am trying to configure Zabbix to send an alarm only after 4 attemps. This alarm checks if the HTTP server returns 200 code. I have tried to set up a Web Scenario, but in the ...
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10 views

Auto-detect and notify remount-ro on Raspberry Pi [on hold]

I'm writting a kind-of a file system UI for Raspberry Pi and I need to monitor changes in mounted partitions so I can reflect them in the UI. By accident I got a flash drive for testing that has a ...
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15 views

Icinga configuring error

After configuring Icinga host list in host conf i got error like root@server scripts]# icinga2 feature list Disabled features: api gelf influxdb opentsdb Enabled features: checker command compatlog ...
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35 views

stackdriver not monitoring kafka metrics

I am trying to setup kafka metrics on stackdriver. I followed all steps as mentioned in https://cloud.google.com/monitoring/agent/plugins/kafka , but still cant see "kafka" metrics. Although I can see ...
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20 views

Sending explicit auth fail requests to fail2ban

From what I understand, fail2ban parses the log files for regexps matching like authentication failure. Is there a way an application can explicitly notify auth failure information like via a REST ...
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1answer
25 views

Is there any “native” way to check for disk errors/failure?

Currently I check for disk failures using a real hodgepodge of checking syslog for filesystem errors, raid controller/HBA burp errors, and actively writing a file to disk, checking its contents, and ...
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22 views

Effective way to monitor Kubernetes pods

I have a question about how to monitor Kubernetes pods effectively. Currently, my setup is: Prometheus ---remote-storage-adapter---> Graphite (for long-term metric storage) With this setup and ...
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1answer
47 views

Log/list bandwidth usage by file on NGINX?

Is it possible to produce a list or log of the bandwidth usage by file on NGINX? Something like: BANDWIDTH USAGE LAST 7 DAYS by FILE; \Project.zip 1.8 GB \Docu8ment.doc 350 MB \logo.png 238 MB \...
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17 views

Can't login to Cockpit (Red Hat)

I run the Monitoring Software Cockpit from Red Hat on my Debian server. It starts without errors and I could log in to the web interface. However, every login attempt fails. I read that authentication ...
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11 views

How do you monitoring nginx request rate per a specific location?

How do you monitoring nginx request rate per a specific location? I want to know what the incoming request rate to a specific location is to be able to compare that to the request handler rate and ...
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4 views

Falco reports <NA> for user, command, parent

I've deployed Sysdig Falco with a standard ruleset to monitor my systems. One alert I'm getting is: Notice Namespace change (setns) by unexpected program (user=<NA> command=<NA> parent=&...
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22 views

nginx: Expose number of requests pending for an upstream server

I'd like to monitor an nginx instance, specifically tracking the number of requests an upstream backend is currently processing. This is important to me since the specific backend has a limit on the ...
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13 views

Monitoring of a nvidia DGX Cluster with a slurm queue

We currently have a dgx-1 (https://www.nvidia.com/en-us/data-center/dgx-1/) running ubuntu with a gateway server(ubuntu) that schedules jobs via slurm (https://slurm.schedmd.com) to the dgx. We are ...
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41 views

Monitoring traffic by IP

I have machines with one interface eth0 with multiple different IP addresses attached to it (255) to be exact, interfaces look like this eth0:1, eth0:2 ...eth0:254. I want to monitor the traffic for ...
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9 views

Linux OpenSuse -> Xen Hypervisor -> monitor dom0 and domUs -> software packages, folder sync, cronjobs

Hi I use OpenSuse15 with Xen Project OpenSource Hypervisor. I have a physical Server with one m1-dom0 running ~ 10 -15 domUs ( Xen Virtual Machines). The hard drives of the virtual machines are ...
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44 views

How to monitor free disk space on ramdisk on windows?

I want to monitor free disk space on ramdisk with wmi_exporter and prometheus. Is there a collector for that which I can't find?
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8 views

Sudden spike in inbound bytes on HAProxy

I was watching the real time data on Google Analytics and I noticed that page views suddenly dropped by 50% for a small period of time. The drop occurred at 6.28PM. When I noticed this, I went into ...
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1answer
36 views

How do I use Nagios to monitor a log file that generates a random ID

This the log file that I want to monitor: /test/James-2018-11-16_15215125111115-16.15.41.111-appserver0.log I want Nagios to read it this log file so I can monitor a specific string. The issue is ...
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1answer
104 views

Zabbix: system.cpu.load[<cpu>,<mode>]

I installed Zabbix 4.0 and going through Quickstart: https://www.zabbix.com/documentation/devel/manual/quickstart/item I've added system.cpu.load[<cpu>,<mode>] (that's the key that is ...
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24 views

How to find which processes caused the system slowdowns? To be used after reboot

For the last few days my Ubuntu 16.04 suffers random slowdowns that it prevents the apps from loading and doesn't even allow me to connect via SSH. The only way I can resolve it is by rebooting the ...
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1answer
39 views

Monitor and act on another process CPU consumption [closed]

I'm looking for away to monitor a specific process CPU consumption and act if the process didn't consume any CPU for the last X minutes/seconds on linux. The use case it that I've a machine on EC2 (...
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1answer
11 views

Use serviceescalation to “de-escalate” notifications

Is it OK to use the serviceescalation Nagios facility to reduce frequency of the notifications sent? The idea is to setup a generic service template with frequent notifications by default and provide ...
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45 views

Icinga2 notification when host goes up

I am using icinga2 and I would like to be notitfied when some hosts become up during a specific period of the day, and down during another specific period of the day (of course different from the ...
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27 views

Changing Munin disk latency warning levels

How can I change the warning levels of disk latency in Munin? They come from a munin plugin named "diskstats" and the name of my partition is "mapper_root". I would prefer a file that is put under /...
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1answer
182 views

Forbidden Invalid CSRF Token +monit

I have installed monit on AWS ec2 and it working fine. But when I try to restart the nginx service through monit UI,i got an error like "Forbidden Invalid CSRF Token +monit". My configuration check ...
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1answer
128 views

zabbix 3.2 - How to monitor RHEL7.2 services in zabbix

I am new in zabbix monitoring. I have 2 operation system to monitor windows and Linux and i have done monitoring windows services but i not getting any result on google to monitor linux server ...
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11 views

ASUS hardware monitoring

Would like to monitor remote ASUS server hardware status as we do for HP server with HP ProLiant Support Pack and DELL server with OpenManage Server Administrator (OMSA). So is there a similar ...
2
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1answer
62 views

What alerting setup can give me an overview of my Prometheus alert states?

I'm using prometheus and alertmanager to post messages to slack when alerts fire. Both are self-hosted in Kube. PII concerns prevent me from using a managed instrumentation solution. I'm looking for ...
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44 views

how to monitor Linux IP Route table change via SNMPD?

I am trying to use "inetCidrRoute" SNMP object, but it does not give out a clear number as "number of routes in the machine", how exactly can I do that? I want to make sure the number of routes does ...
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18 views

Why Icinga2 remote apt check is displaying results from master?

I've a icinga2 installation monitoring some debian hosts using native agent. All checks are working fine except apt. The results displayed are taken from the icinga2 master machine and I can't ...
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49 views

cassandra cluster monitoring using graphite -grafana

I am new to Cassandra and trying to setup monitoring tool to monitor Cassandra production cluster. So i have setup one graphite-grafana on one of the cassandra node & i'm able to get metrics of ...
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2answers
2k views

Someone just trying to hack me? login.cgi+wget

I'm build a new server on Apache, actually I am learning, so I'm trying different things. My security system is already done, but of course I may miss something, or, if not, I do understand that today ...
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145 views

snmp lsi/avago raid controller

First of all, I'm a complete SNMP newbee. My current situation: I need to monitor a LSI MegaRAID SAS 9361-8i in a Ubuntu 16.04 machine (let's call it fserv) with Zabbix. I managed to install/...
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1answer
105 views

Monitoring AWS RSS feed with zabbix

I ran into this post How to monitor an RSS with Zabbix and want to the same for all 4 AWS regions https://status.aws.amazon.com/ but no idea how to start
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1answer
30 views

Can I customise netdata not to alert me about 303 redirects?

I use 303 codes (correctly, I believe) to redirect a user after they've submitted a form. Unfortunately this means that a few times every day I get an alert from netdata along the lines of: netdata ...
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1answer
28 views

how to find out block and network used by docker container

I have confusion to understand docker container stats for NET I/O and BLOCK I/O. As per official documentation. NET I/O => The amount of data the container has sent and received over its network ...
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1answer
40 views

Does it make sense to monitor free memory and CPU usage on servers?

I am monitoring my servers infrastructure using Icinga2 with some master/satellite configurations. On Linux and Windows hosts I am monitoring the defaults system metrics like CPU usage and free ...
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1answer
98 views

Multiple certs on an ELB listener. Nagios monitoring only checks the default one, regardless of host name

So I have two sites running, each behind a single Amazon ELB. For the purpose of this post (and my companies privacy), using these hostnames for each: example.com anotherexample.com Certs are ...
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39 views

Cacti - Poller stopped after data source template changed - Old but gold

I'm new here and this is my first post :) I will try to explain, sorry ahead about my grammar We moved to GPDR few months ago, and my job is to fix all the graph which Stopped working, we notice it ...
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1answer
74 views

textfile for Windows

I need to export some custom metrics generated by a script under Windows. Under Linux, I am already doing it, based on Robust Perception / Brian Brazil article : The node exporter includes many ...
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1answer
182 views

Icinga 2 check_logfiles with Agent on Windows

I'd like to add a check_logfiles command on a windows machine. Do I have to use the NSClient++ or is it possible to do this with the Icinga 2 Client wich is already installed? I configured the Service ...
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1answer
162 views

Nagios 4.4.1 slows to crawl after about 1 week with frequent 100% CPU utilization

We are running a new Nagios Core server on Ubuntu 16 Server. Everything was running fine until today when all of a sudden, the site slowed to a crawl. Looking at top command results, we are seeing ...
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397 views

OCS-Inventory installation problems

Good Afternoon, I am trying to Install OCS Inventory Version 2.4 in Ubuntu 16.04 following the INSTALL within the installation folder, but right before completing while trying to copy files to /usr/...
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1answer
39 views

“not a proper statistics file” when reading sar log files

Why am I getting "not a proper statistics file" when reading sar log files? sysstat Version: 11.2.0-1ubuntu0.2 root@sandbox1:/var/log/sysstat# ls -lh total 4.5K -rw-r--r-- 1 root root 4.9K Jul 12 ...
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1answer
97 views

Graphite does not show all the data points

My program is sending data item every second but when I refresh my graphite graph, I only see few of them. What am I missing here?
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capturing durations (intervals) between tracepoints in perf

When using the perf tool (Linux), is there any simple and convenient way to time durations between two tracepoints? The obvious use is for syscall sys_enter and sys_exit points like sys_enter_fsync ...
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2answers
99 views

Is icmp ping a reliable way to monitor host up/down in EC2?

We use icmp ping to determine host up/down status from icinga2 in our AWS EC2 environment. This works well, but we have had a handful of issues where host will fail ping but its services are still ok. ...
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0answers
28 views

Telegraf - two identical records with different tags

I’ll try to describe what I have and what I need. I appreciate if somebody will have some idea how to do it. :] I have around thousand servers where running different Apps. I would like to monitor OS ...
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1answer
56 views

Azure Security Center - Would the Monitoring Agent work on AWS and GCP VMs

I'm looking at Azure Security Center. I know it can be used to monitor not just VMs on Azure, but also VMs outside of Azure using an installable Monitoring Agent. My question is whether this agent ...
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148 views

On machine reboot via SNMP

Is it possible to reboot a windows or a linux machine via SNMP? Most of information I've found is related to the reload of the SNMP service itself, instead of host reboot.