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

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24 views

Nginx upstream never flagged as down in vts status

We have 2 physical server which are basically identical (for load balancing and failover) One physical server consist of a bunch of docker containers including 1 x NginX 2 x WebSphere 8.5.5.8 ...
-4
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0answers
11 views

Monitor a server from a VPN with Nagios

Is it possible to monitor a server from another machine that's inside a VPN? If yes, how can it possibly be done? Our default configuration doesn't work, and Nagios keeps throwing "ssl handshake ...
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0answers
35 views

Viewing current network connections/traffic in real time, inside a datacenter/cloud [on hold]

Context I am starring blankly at my list of instances on Amazon. Hundreds and hundreds of computers in the wild, talking to each other. At least that's what I suppose. The truth is I don't really ...
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0answers
8 views

How to set specific time frame for only 1 query when configuring a graph in Grafana?

I need to configure a graph in Grafana which is supposed to display disk growth of the database disk in MongoDB server. I've already measured disk growth per day and the current growth per day is ...
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0answers
17 views

WMI fails with to query with linux wmic, but works from a windows machine

I have 2 Servers, one at 192.168.1.10 and one at 192.168.1.20, one work, the other gives me this output and I cannot figure out why, they are both running Windows 12R2. I am able to query the machine ...
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2answers
22 views

Simple uptime monitor for small remote network [on hold]

Our company has about 15 small stores with two Windows 7 PCs (and two VoIP phones) at each location behind a SonicWall SOHO. We use various business grade cable and fiber ISPs at each location. ...
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3answers
78 views

How to monitor software installation in AD DS?

I'm trying to choose software for monitoring installed software in Active Directory Domain. I thought to use SCCM services, but found it too complicated. Maybe did anybody use a suitable solutions for ...
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0answers
10 views

Sensu remediation: not able to trigger client

Sensu Monitoring.... Senario: if my http link goes down then i use to manually run the script and start it. we moved to Sensu recently as its GUI and monitoring system is quite impressive ,I tried ...
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33 views

Estimate when a filesystem will be full

Background I'm managing about 50 CentOS 5.6 Linux servers in my workplace with some critical filesystems that store weekly backups of applications, databases and user workplace files. Problem Last ...
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1answer
24 views

How to get all SNMP items using zabbix?

Scenario: OS: CentOS 7.2 Zabbix version: 3.0 Trying to monitor some switches using SNMP protocol I'm able to monitor them without any problem, all items are working and everything is fine but ...
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7 views

General purpose monitoring and alerter [duplicate]

I sometimes have a need to automatically get notified when some events happens... I'm looking for some suggestions of application to use for this (Operation System isn't important). Requirements ...
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2answers
28 views

Software to Detect Device Missing from Network?

I have several small Android tablets that I am going to deploy in a manufacturing environment. Each one will be assigned to an individual, but I'd still like to have some way of detecting if the ...
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1answer
75 views

Is it possible to monitor processes with Zabbix?

I've installed zabbix-server, zabbix-proxy and some zabbix-agents on some of my dedicated servers. Everything is working and I'm quite happy with everything but I was curious about this topic: ...
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1answer
31 views

Monthly port monitoring

I just created a shadowsocks proxy in Tokyo (AWS) with multiple users on it. Each user has one specific port to connect and log on it. My question is, is it possible to monitor for each port ...
0
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1answer
16 views

Icinga monitoring, random “Connection refused by host”

I have a Nagios/icinga monitoring system, which i use to monitor mainly Windows based machines running a version of NSClient++ that i found works without being too annoying (NSCP-0.4.1.105-x64). This ...
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1answer
25 views

Monitor the availability of Marathon Framework

I am using Mesos - Marathon for App deployment and availability, but sometimes marathon freezes. I tried to monitor the tcp port, but during the freeze port is open and thus not able to detect the ...
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0answers
13 views

How to centrally monitor multiple web servers and VPS uptime? [duplicate]

I have several VPS with different hosting providers running Linux (CentOS and Ubuntu) and FreeBSD. Several of them are self-managed. From time to time, there's server issue causing service ...
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2answers
38 views

Monitoring IBM server hardware without IMM port connection

We have a lot of IBM x86 servers that we need to monitor for hardware issues(disk failure/temperature/fans). Around 50% of them have IMM ports hooked up and we are able to monitor for SNMP traps using ...
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1answer
43 views

MONIT: Monitoring logfile on counting and changes of timestamp

I want to monitor a logfile and I am only interested in the "Received new block" lines. I need two different scripts to monitor a) the height, which should always be one number higher then the height ...
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0answers
16 views

How does nginx-plus calculates cache hit ratio

I'm creating a plugin to be compatible with nginx-plus live metrics, and I'm puzzled on how they calculate the cache hit ratio. In using their demo site as well as their demo API, but still don't know ...
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0answers
10 views

Trace New Processes Executing Shell Scripts

A web interface executes specific shell scripts on a server when a user triggers certain actions, like pressing a submit button. On the SLE10 server, I would like to have a tool that after starting it ...
0
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1answer
30 views

Same script, same OS, same installation, failing

So I'm working with RANCID to monitor some switches and I'm using clogin now to test some modifications. I'm working in two different computers but both of them from the office. Althought they are ...
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0answers
18 views

nagios custom script working locally, returns null in UI

I have a custom script that I've defined within my nagios command.cfg and service definitions. When run locally as nagios on the monitoring host, it returns the expected output (a large hash of stats ...
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0answers
12 views

Apache2 Traffic Overstated to the the point of Ludicrousness

Here's the status page from a rarely visited web site I host. What could make the traffic statistic so off the scale high? Edit: this is an ancient 32-bit Dell Dimension 4600 machine running ...
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0answers
17 views

Adding more colors in the plots in the Ganglia Web Interface

I use ganglia to monitor my computer cluster. On Ganglia Web Interface, is it possible to add more colors in the plots? There seems to be 9 colors by default, which prevents me from seeing to which ...
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0answers
23 views

Ganglia showing both host names and IPs

I restarted the gmond daemon (sudo /etc/init.d/gmetad restart), and now the Ganglia web interface is showing both host names and IPs: As a result, each server now appears as two different entries ...
4
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1answer
54 views

Understanding Chart from Google SRE Book

While reading Site Reliability Engineering, I read the following: I don't understand how to read this chart. As I understand the purple region represents the 50th percentile (half of all traffic). ...
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0answers
33 views

Can Ganglia's gmond be configured so that it doesn't need to be restarted if the Ganglia server is restarted?

I use ganglia to monitor my computer cluster: (source of the image) When I restart the Ganglia server, the gmond daemon on the other servers in the cluster stop sending information to the Ganglia ...
0
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1answer
29 views

nrpe user cant properly execute script remotely using lsof, netstat works

I created a simple script for nagios to check a port on a remote server. Originally, I tried to use lsof. #!/bin/bash RESULT=$(lsof -i :8080 | grep LISTEN) if [ -n "$RESULT" ] then echo ...
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1answer
69 views

Ganglia's GPU Nvidia module: do we need to patch the ganglia-webfrontend?

I am trying to add the GPU Nvidia module in ganglia (/ganglia/gmond_python_modules/gpu/nvidia/). Do we need to apply the ganglia_web.patch patch? If I do not apply the patch, I don't see any GPU ...
3
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3answers
492 views

Notification for Disk-Space Shortage Issue in Server

I have a ubuntu server, and facing frequent space issue, i.e. logs are eating up lot of disk space. So, I want a check to be applied, so that whenever there is less than 5 GB free disk space, I should ...
1
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1answer
30 views

Estimate RAM necessary for a process on Linux

I am a user of a Linux-based computing cluster that runs a task queuing system PBSPro. PBSPro likes to know how much RAM should be available for a task to make sure it will execute correctly; for ...
4
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1answer
50 views

OpenNMS check if service is running on remote server using SSH

I have an OpenNMS system configured and up and running. I have a few Linux (debian) servers and I need to monitor if a specific service is running on them. This must be done using only ssh access. No ...
1
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1answer
21 views

Making HAProxy Pass a Host Name in HTTPCHECK

I am trying to perform HTTP Checks in HAProxy with a specific host name. Here is a snippet from my backend configuration: option httpchk HEAD / HTTP/1.1\r\nHost: example.com http-check expect ...
0
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0answers
22 views

Airodump-ng Not Showing Anything

I am using Kali Linux to test some adapters. First of all, I don't know why, but I have a wlan0 and wlan1. I have tried both of them and I still have the same problem. So far I can issue the command: ...
1
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2answers
200 views

Sensu API not responding. Uchiwa: Connection error. Is the Sensu API running? Redis Issue

I have been setting up sensu on CentOS7.2 for the first time following the official docs over and over however I have not been able to get it to work: I cannot seem to connect to the API. Uchiwa ...
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0answers
24 views

Run Java Mission Control as a daemon, and activate alerts?

I would like to use Java Mission Control (JMC) to monitor a java application I have that will expose certain information via JMX. In JMC it is possible to setup alerts to trigger when certain ...
0
votes
1answer
24 views

How to raise alert if a tcp port is responding in Icinga2?

I'm new to Icinga2. I have set up a couple of service checks. Now I want to check if a TCP port is responding, and if it does raise a down event. Basically I want to reverse the status, because ...
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0answers
82 views

Zabbix JMX custom java app monitoring

We are trying to monitor a custom java app and retrieve JMX data from that host . I've tried to figure out the issue for the past 2 days but with no success . Unfortunately zabbix documentation does ...
1
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1answer
13 views

Methods for monitoring and alerting data issues when dealing with complex dependencies

In this hypothetical example, we have a data flow across multiple engineering teams in an ecommerce company. These teams deliver services, produce data, and consume data at different points of the ...
1
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2answers
46 views

monitor windows server - running behind firewall using WMI

I'm havingg 100 windows machines which is running behind the firewall. But my monitoring server is running outside the network [ public]. For SNMP , I can put one proxy server inside the internal ...
0
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0answers
6 views

ganglia only shows unspecified cluster

I have configured a ganglia in my office to monitor server resource utilization. i have configured a data_source but its showing in ganglia web. data_source "test-cluster" 30 10.220.8.54:8649
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2answers
76 views

Icinga 2 sends notifications outside of specified time period

I'm trying to send different notifications in different time periods, basically I want to send all notifications during work hours, but only notifications for hosts marked emergency during off hours. ...
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2answers
1k views

What is the default root password for Zabbix Appliance 3.0?

I can't seem to find the default password for the root user on a fresh installation of Zabbix Appliance 3.0. Tried many common default passwords, but non worked. Also tried other usernames that might ...
0
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0answers
39 views

Icinga2 Mail Notifications Per HostGroup

I have a working Icinga2 installation and I have a number of servers/worstations broken up into hostgroups. For example, I have Fixed Servers - hostgroup is fixed-workstations Tiered Server - ...
0
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1answer
71 views

Munin and mysql plugin

I've installed munin on a vps and I want to monitor mysql usage of 3 mysql servers, I have configured mysql_ plugin as follow: [mysql_*] env.mysqlconnection ...
3
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0answers
30 views

Monitor latency by IP on a bridge-enabled host

Is there a tool which captures packets, measure latency in realtime and display it with some IP filtering options for Windows ? My particular setup : Internet -> Router -> Host Master -> Host Slave ...
0
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1answer
20 views

Requests with .php5 extension in server logs

Taking a look at access logs and I see a stream of requests from the same IP address that are making requests to files and appending .php and .php5 to the URLs. The logs look something like: ...
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2answers
37 views

How to monitor which request on which URL creates high load on database(mysql) and php?

I'm interesting in how i can monitor which request on which URL creates high load on database(mysql) and php scripts. Now i use zabbix(2.4), but i cannot find something what can me help with this. ...
1
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1answer
30 views

Monit sshd binary Checksum Check and Restart

I'm going over a monit config file and something doesn't seem right. I'm using monit to monitor the checksum of the sshd binary, if its different from whats expected it should reload a known binary. ...