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

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56 views

How to determine the cause of network issues of a hetzner.de dedicated server?

I've got 3 dedicated servers at hetzner.de, and I’m occasionally getting unavailability alerts for these servers, from 2 independent monitoring systems (New Relic and Pingdom) usually for all 3 server ...
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1answer
71 views

New nagios/cacti monitoring setup, should I use a dedicated VM?

Currently we have 4 bare metal servers and one small VM server (all running centos6) and I'm looking at setting up monitoring for the Percona MySQL db server and replication slave (bare metal), as ...
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0answers
88 views

Random server load spikes, number of tasks doubles, CPU/Memory consistent

We run a vBulletin forum with 6,000 visitors per day on an SSD VPS with 5GB RAM and 24 CPU Cores. On a typical day we see 30-50 concurrent users at any given moment. On busy mornings, it'll go up to ...
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74 views

AWS ELB Monitoring - instance state “Unknown”

We have a nagios script (python) which monitors our AWS ELBs and alerts if there are unhealthy instances. It has been working fine for some months. Over the last week or so, we've started receiving ...
2
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2answers
84 views

Method to log amount of transmitted data per each IP address in linux

I am looking for a method in linux to log the amount of data transmitted (received and sent separately) for every single IP address to which the data was sent to or received from. These statistics ...
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2answers
67 views

Monitoring Memory Usage on a Machine that Uses MSMQ

Based on this thread, it seems that it's "normal" for the MSMQ process to take up an much memory as is available until it comes under memory pressure. It seems most monitoring tools base memory usage ...
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1answer
55 views

Multiple monitoring machines for the same hosts

I'm fairly new to monitoring and am currently trying to setup a monitoring solution for our network infrastructure. Our hardware is pretty old and can therefore fail at any time. We have taken ...
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1answer
48 views

Take some action when errors occur with nginx

I have a nginx/1.2.1 on Debian 7.0 x64 and i want to take some action when some error occurs, something like send mail to me. I found on the web ways to monitor files and take some action when they ...
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2answers
63 views

Simple method of detecting and reporting server outage? [closed]

I'm looking for a super simple way to monitor one server from another, in case the other goes down (e.g. based on ping), and then send an email if it does. Is there anything out there like this ...
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1answer
113 views

Icinga Distributed - Status Map / Reachability Issue

I'm setting up a distributed Icinga setup in the following manner. We have 6 sites so i'm monitoring 3 on each of 2 nodes plus a central server. Sites a,b,c are actively monitored by node 1 Sites ...
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1answer
195 views

Integrating Nagios with a ticketing system/incident mnagement system

Is there a free ticketing system/incident management system which will help me in achieving the following? 1) If a service goes down then Nagios alerts the on-duty staff and pushes the status to some ...
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1answer
119 views

Restarting shell script with &disown using Monit

I have a shell script that runs a C++ backend mail system (PluginHandler). I need to monitor this process in Monit and restart it if it fails. The script: export ...
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59 views

shinken/nagios discriminative between warning alert and critical alert

i using shinken for my monitoring system. Now, i have a problem when i configure shinken notification. My purpose is to discriminative between notification for warning state and critical state of ...
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2answers
54 views

RAID card monitoring from Debian OS

We have a custom built Debain OS server with this raid card. Is there anything we can do from the OS side to monitor the raid virtual disks? A few weeks ago we had a raid degrade and did not know ...
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3answers
146 views

Monitoring / metric collection for system collectives that change a lot in time (a.k.a. cloud) [closed]

When your server fleet doesn't change a lot in time, like when you're using bare-metal hosting, classic monitoring and metric collection solutions (Nagios, Munin) work well. But if the number of ...
0
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1answer
62 views

How to monitor an Amazon EC2 instance [closed]

Is there a way to monitor ec2 instances without using cloudwatch? I ask this since ec2 instances are basically VPS's, and using output from commands like top, vmstat, htop in scripts may not give the ...
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2answers
52 views

Determine what has changed a specific key on Windows registry [closed]

History : My C drive disappeared from "Computer" on my Win7. After fixing it a couple of days ago by changing a registry key, I notice today that my C drive has disappeared AGAIN. ...
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0answers
39 views

Looking for a program to run perl scripts and collect/report results

One of the technologies we manage is rather difficult to monitor due to lack of hooks into the running state and configuration. A teammate and I are working on a script/series of perl scripts that ...
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0answers
28 views

Nagios XI- Different Access Permissions to Different Users

I am having 22 Linux servers configured and being monitored in Nagios XI. I have created a user, apart from nagiosadmin (the admin user), to whom I have to give access to only 4 servers, so that he ...
7
votes
3answers
182 views

ssh host key certificates, find validity period remotely?

I have an environment where I use ssh certificates to authenticate ssh host keys. I'm talking about the kind of certificates created by running ssh-keygen -s /path/to/ca -h .... These certificates are ...
0
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1answer
62 views

Change graph interval in cacti

I am new to cacti. I got cacti running and wanted to use the Advanced Ping Templete. It works fine but I want to change the Interval to 30 seconds instead of the 5 minutes. Can't find where I can ...
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1answer
37 views

Why perfmon for remote desktop servers get an empty file (only time stamp)?

I'm trying to remotely monitor a server using perfmon, the output file is always empty and only the time stamp field is there?
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1answer
247 views

Monitoring network output bandwidth of server for each IP address

I've got a network of static file serving servers. I use nginx to serve the files, and munin to monitor the network traffic. I want to know the output bandwidth of the server that goes to each IP ...
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1answer
141 views

Is the Datadog install script safe to run? [closed]

I have a production server (CentOS 6, Apache, Nginx, MySQL, PHP, wordpress). I want to see some metrics (e.g., load bandwidth, RAM, CPU and so on). I chose a Datadog for this task. The instructions ...
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2answers
71 views

How to get the port number a user ssh'd in on?

I am transitioning servers away from port 22 in an existing multiuser environment. I have configured sshd to listen on two ports: 22 and the new port. Now I would like to detect when a user connects ...
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2answers
58 views

Real time server status on another linux server

I'm looking to make some sort of readable file(pipe?) on my two web servers that shows the id of the mysql server with the least load to use in load balancing as well as some other applications. I'm ...
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0answers
103 views

Collecting amavis stats with SNMP

I'm trying to get values from amavis in a CentOS 6.5 server. This values, such as spam mail (total, total/h, percent), are supposed to be accesible via SNMP. But, when I run snmpwal, I always get 0 ...
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1answer
44 views

Monitor network nodes for availability [duplicate]

I'm installing a network at a factory with around 200-300 PLC's. I have looked into spiceworks and similar solutions, and all of them are more or less computer / printer minded. What I wan't is: A ...
0
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1answer
58 views

Monitoring solution that doesn't duplicate source data?

I need to analyze data stored in multiple databases. Each of them contains a few TB of logs and sensor data. If I use Splunk or ElasticSearch/Kibana, I see 2 solutions: Batch import everything ...
0
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1answer
277 views

Php-Fpm: status URL for all pools

I have an ISPConfig server serving php pages with FPM in ondemand mode. On another server with a single fpm pool I keep daemon monitored using the /status URL and work great. In ISPConfig case there ...
4
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1answer
139 views

Nagios escalations, prematurely critical escalation after warning

In Nagios 3, I would like a service to be escalated after being critical XX minutes. It works great on services that go from UP to CRITICAL. However, if the service has been warning >XX minutes (say ...
15
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2answers
582 views

How can I gain better insight into ISP-managed equipment (routers)?

I have a number of customers who have networking equipment managed by their ISP. This is usually in the form of an ISP-provided switch or router placed at the customer location(s). For sites that ...
0
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1answer
69 views

Read-only ID for web-console on JBoss 7.1.1

I would like to create a Read-only ID ( monitoring id) for the web-console on our JBoss 7.1.1 running on RHEL host. Ive been searching but couldnt find anything. I need an account that can login and ...
1
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1answer
26 views

Simple web tool for viewing log

I'm developing a server deployment script that installs a bunch of stuff and generates a log in the process. I'd like users of the script to be able to view what's happening, on a web page, in real ...
8
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2answers
238 views

Is it reasonable to use Nagios to check that a service is NOT available?

Suppose I have a server with a private interface and a public interface. Public might have things like HTTP(S) servers, private might have MySQL and SSH. Obviously Nagios is useful to check that the ...
0
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1answer
59 views

How do I know which node in a cluster answers?

I have set up an NLB with two servers (nodes) which are running the same service. The filtering is single host, because I don’t want them to run at the same time, because there is data in the cache ...
2
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1answer
117 views

How to make Monit “check process” conditional?

I have a monit script that does something like this: check process sidekiq_1 with pidfile /tmp/pids/sidekiq_1.pid start program = "/bin/bash -l -c 'bundle exec sidekiq start" as uid jim and gid jim ...
2
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2answers
57 views

Why does the temperature in a pair of disks under RAID 1 showing a large temperature difference?

It appears quite strange to me that temperature readings derived from SMART for one disk is different from its twin in a RAID 1 configuration by as much as 9°C: # smartctl -d scsi -A /dev/sg1 === ...
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0answers
86 views

How to enable temperature warning for SMART disk?

I have a scsi disk with SMART enabled and with the following information: # smartctl -d scsi -i /dev/sg1 ... === START OF INFORMATION SECTION === Vendor: SEAGATE Product: ...
0
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1answer
29 views

monitoring availability of publicly accessible distribution lists

I have an unusual request from management: to set up monitoring of public-facing email addresses that resolve to distribution lists(groups). We are using Exchange 2010 to host these lists/groups. I ...
0
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2answers
559 views

How to monitor RAID1 system with Dell PERC H200 controller?

I have a server configured with RAID1 using a Dell PERC H200 controller. I tried to use smartmontools to monitor the disks. But after installing it and running the command, it says SMART support is ...
3
votes
1answer
483 views

Overriding Nagios hostgroup service with host service

I currently am experimenting with defining a set of services to all hosts in a hostgroup, this is working fine. My issue is that I then want to be able to override these service definitions which ...
2
votes
1answer
687 views

Using Logstash as shipper?

We are shipping logs from servers and using THE logstash on each server for shipping. So we read logs from the glob "/root/Desktop/Logstash-Input/**/*_log". input { file{ ...
2
votes
1answer
129 views

Why isn't snmptt translating this trap?

I have a device that is sending snmp v1 traps and snmptt cannot translate them. To grab a copy of the trap, I stopped the snmptt service, and copied the trap to /tmp. The OID I'm trying to trigger ...
1
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1answer
81 views

Box to create a VNC to multiple servers' VGA output and keyboard

My boss has ordered me to find a box that we can connect to our 8 servers, so that we can view the VGA output and use the keyboard as if we were sitting directly in front of the server (i.e. see that ...
0
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2answers
196 views

View realtime list of connections to Postfix

I am running Postfix on a linux box with a couple hundred local users with mailboxes. Is there a way to monitor all incoming connections (SMTP) to the Postfix service? I.e. a live stream of "IP ...
5
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2answers
315 views

How do I audit network connections that exceed a certain amount of traffic or bandwidth on Linux?

I've looking after some Debian boxes and occasionally I see a big spike in the network traffic. I'm graphing metrics with graphite (being fed by a sensu check which gathers per-interface metrics every ...
0
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1answer
156 views

How to make Dstat show units

Im using Dstat on Centos to monitor incoming network, and it only shows numbers, not the B/Mb that I have seen on other peoples Dstats, how do I make it show the units? Example of current Dstat: ...
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1answer
127 views

If you use Intel Rapid Storage for RAID1 on Linux server, how would you know 1 SSD is failing?

I use the motherboard's RAID1 to mirror the 2 SSD, in Linux server it see only 1 'Intel Volume1,' in times where 1 SSD fail how would I know? Thanks.
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1answer
77 views

Monitoring heartbeat centos

I am using HAproxy on two servers and for high availability using heartbeat and everything is okay, but I want to monitoring heartbeat I have a long search and get clustat command but can't find it on ...