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

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0
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2answers
3k views

check_ssh executed from Nagios server returns “Server answer: ”, nothing else

Commmand works on the host I need to monitor (its IP is denoted as $HOSTADDRESS$ here): [root@host ~]# /usr/local/nagios/libexec/check_ssh localhost SSH OK - OpenSSH_4.3 (protocol 2.0) However, on ...
1
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3answers
861 views

monitoring switches with Nagios

I'm trying to monitoring switch with Nagios. I had made everything like in this tutorial, but I'm getting Status Information in Nagios browser window like this: (Return code of 127 is out of bounds - ...
7
votes
6answers
574 views

How would you measure the amount of atmospheric dust in a server room?

We've been advised by our tape library vendor that one of the reasons we might be seeing lots of errors is if our server room is particularly dusty. It doesn't look dusty, but that's not to say it's ...
108
votes
2answers
44k views

What exactly do the colors in htop status bars mean?

By default, htop shows colored status bars for processors, memory, and swap. From left to right, the bars are colored green, blue, yellow, and red depending on some thresholds. What does it mean when ...
1
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1answer
31 views

Can cacti display some TEXT output from mib at my graph?

My switch can check if there is an SFP connector present in its ports and their respective link status. I want to display this information in Cacti graphs for each interface of my switch. The switch ...
0
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3answers
1k views

SNMP service security tab is missing - Windows Server 2012 R2 - DC

i have to configure the security settings for the SNMP-Service on a Windows Server. But they are missing! Here are the fakts: OS: Windows Server 2012 R2 I installed the SNMP feature and i belive, ...
-1
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0answers
11 views

Monitoring with email templating [on hold]

I'm looking for a server monitoring service who allows customized notification email templates. I'm currently using Pingdom and they don't offer email templating. I've read about StatusCake, but I'm ...
1
vote
1answer
10 views

How to restart and alert if condition matches in Monit?

How can I do multiple things when condition is matched? For example if I want to restart a process and also send alert email. I know I can do it with two separate lines, but can I combine them? if ...
1
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0answers
12 views

How to divide hosts by groups in Icinga2 properly?

I just migrate from Nagios to Icinga2 and have a question. For example I have bunch of hosts related to group by their functional for example "web". But I want to check temperature for that group with ...
-1
votes
0answers
12 views

Install and Configure Monit to monitor CPU, RAM and network usage [closed]

I wanted to monitor the RAM, CPU and network usage for my single server using monit. I wanted a way so that I can view these stats from a remote localhost. If there was excessive load on the server, I ...
0
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2answers
2k views

IIS7: How to handle application pools which uses too much memory or CPU?

How to handle application pools which uses too much memory or CPU? I would like to have possibility to select for how much time application pool is using certain amount of memory or cpu (or both) ...
4
votes
1answer
2k views

Have issue with monitoring 32bit app pools running on 64bit IIS

I am performing a monitoring task on my 64bit web server which has couple of applications pools running in 32bit mode. I am using .Net CLR Memory object in perfmon to monitor them. However, my ...
3
votes
3answers
311 views

How do I monitor RAID status when using an external eSATA RAID5 SATA port multiplier?

I am using an external eSATA device which takes 5 SATA drives and presents them as one large HW RAID5 to linux (ubuntu). It uses a SiI3726 chipset. Linux sees and handles the sata device just fine, ...
5
votes
1answer
169 views

Nagios: How to aggregate a large amount of notifications into one email notifcation?

I have a Nagios server which monitors many servers. There's a dashboard which has been coded in-house and it sends monitoring data using passive checks to the Nagios server. Whenever an issue occurs, ...
3
votes
2answers
3k views

Monitoring Tomcat Webapps [closed]

We have several webapps deployed to a single Tomcat 7 server. Is there a way to monitor the status (uptime, memory usage, etc.) of each webapp deployed to a Tomcat server? We are using Nagios to ...
0
votes
1answer
981 views

Issues in monitoring apache tomcat server using Monit

I have installed Monit using the following command in Ubuntu Linux 12.04.1 server sudo apt-get install monit My main goal in using Monit is to restart my - MySQL and Apache tomcat services ...
2
votes
1answer
27 views

Monitoring /proc/net/udp

I am interested in tracking changes in /proc/net/udp, particularly in the "drops" column. I want to know the the approximate time when a drop counter goes up. Also, if the socket gets destroyed, I ...
2
votes
3answers
1k views

Monitoring memory usage on Linux system

We use WhatsUp Gold to monitor all of our web servers. On our Linux servers (and much to the same degree, our FreeBSD servers) I'm having a little bit of an issue with the memory monitors. We're using ...
5
votes
3answers
120 views

How to detect virtual machines freezes

On cloud platforms you often hear that because of high load on neighboring VMs, disks over oversubscribed ethernet, backups, or live migration to other hardware, the virtual machine can 'freeze' for a ...
4
votes
1answer
981 views

God Process Monitoring - CentOS - Event System Not Found

I have god installed on at least a dozen (or more) servers running CentOS 5.5 in both i386 and x86_64 flavors that work perfectly. I just setup two new CentOS 5.5 x86_64 servers and installed God, but ...
1
vote
1answer
911 views

Initializing portracker database files in nfsen

I have configured nfsen on Ubuntu. After that I configured PortTracker plugin but database files cannot be initialized. #cd /usr/local/src #wget ...
5
votes
1answer
99 views

Icinga - Very high check latency in distributed environment

I have a distributed Icinga setup set up as follows: CENTRAL Receives passive check results only DISTRIBUTED A 227 hosts 835 services DISTRIBUTED B 67 hosts 243 ...
0
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3answers
3k views

Zabbix not collecting data

It's the first time that i install a Zabbix server on my dedicated server (debian 5). But zabbix cannot collect data from the server itself (no remote server, it's installed on the server i have to ...
1
vote
1answer
277 views

Why is /proc/meminfo reporting misleading SwapTotal after suspends

Consider this: [skrat@apex geri]$ cat /proc/meminfo | grep SwapTotal SwapTotal: 18438120 kB [skrat@apex geri]$ swapon -s Filename Type Size Used ...
2
votes
2answers
237 views

How to monitor quality of unreliable link over time?

We have ISP that provides us with a shoddy service. It usually works, but there are times when it works really bad, drops connections and gets awfully slow. Sadly, our contract doesn't have SLA clause ...
4
votes
1answer
525 views

Open source network tap

I've recently begun researching network monitoring solutions. I've configured SPAN on our cisco catalyst, and it's working ok, but I've been reading up on taps too. Most of the articles I've seen ...
1
vote
1answer
1k views

Port mirroring on multiple switches

So here is the deal, I have a server on switch A where port 3 is monitoring traffic for most of the ports on switch A. However I have other users on switch B that needs to have port 3 on switch A ...
2
votes
1answer
127 views

Monitor a web service hosted at http url [closed]

I am thinking of a strategies to monitor a web service hosted at http url. I want to be able to know if it is up or down. I am aware of polling but wondering if there are any other non obvious ...
3
votes
2answers
44 views

Is Collectd a good choice for gathering system metrics [closed]

I had some experience with collectd a year or so back. I remember being impressed by its speed and flexibility, however it was never adopted as the main source of collecting metrics, cron jobs running ...
0
votes
3answers
293 views

What is a correct monitoring strategy for network services?

Take for example a host which monitored with nagios and check_mk. Now there are http and ssh servers running on it. What is the best monitoring strategy: Monitor that sshd & apache process are ...
6
votes
5answers
4k views

What is the difference between nagios xi and cacti for monitoring?

Nagios XI (This is a commercial implementation of Nagios) can graph as well as send alerts based on threshold conditions. I am not able to understand the difference between Nagios and Cacti. Any idea ...
1
vote
2answers
3k views

Is there a locally hosted service (similar to Pingdom) for monitoring uptime/response time? [duplicate]

Possible Duplicate: What tool do you use to monitor your servers? I'm looking for something to monitor intranet apps and internal web services, and provide logs of historical response ...
2
votes
2answers
1k views

Get port vlan tag via snmp on HP Procurve

I'm trying to write a nagios check that will check if a port is a member of (tagged in) a perticular VLAN. I've discovered the following SNMP location SNMPv2-SMI::mib-2.17.7.1.4.5.1.1.40 for checking ...
2
votes
1answer
35 views

Monitoring Linux system Calls (efficiently)

What is the fastest way to monitor linux system calls and log them to a file? This post has some great info: Monitoring system calls (in a reliable and secure way) It's seems that the Audit ...
1
vote
2answers
668 views

How to use nagios to monitor Zookeeper nodes

Sorry this may be a basic question, but I am new to both nagios, and zookeeper. My company has an application that uses zookeeper to track job status, by creating/destroying nodes. I need to be able ...
0
votes
0answers
77 views

How to display MongoDB stats in Graphite?

After googling for 2 days with no solution I would like to know if anyone uses Graphite with either CollectD or StatsD to include MongoDB statistics in a dashboard. I was hoping for an up-to-date ...
3
votes
1answer
37 views

How to configure Monit to alert me when anything appears in syslog

I want Monit to alert me if ANYTHING shows up in syslog - as anything in there would be abnormal. I've tried the following and I'm not receiving any alert emails when I manually add something to ...
1
vote
1answer
1k views

Munin - apache_watch_ plugin, does not show any data in the graphs that shows activity for per vhosts

I am using Munin for monitoring my server. I installed the apache_watch_ plugin so that i could see apache related activity. The graphs for apache_accesses, apache_processes and apache_volume work ...
9
votes
5answers
7k views

View content of memcached

Are there any tools to explore what is currently cached inside a memcached pool? Not some much graphs, but the actual key/values currently stored.
1
vote
1answer
748 views

Track resource usage of individual website on shared hosting [closed]

I have a Centos 6 web server (Apache-itk, PHP, MySQL) with ISPconfig. I have about 100 websites on this webserver, all of them belong to me. I must be able to track how much of resources (traffic, ...
2
votes
3answers
2k views

What tool to use to identify a high-CPU Tomcat thread?

We have a load balanced server farm using Tomcat 7. Once in a while (once a day, at least) a server's CPU load spikes way up. This appears to be legitimate server usage and not a fault, but I ...
1
vote
1answer
1k views

What Logs / Process Stats to monitor on a Ubuntu FTP server?

I am administering a server with Ubuntu Server which is running pureFTP. So far all is well, but I would like to know what I should be monitoring so that I can spot any potential stability and ...
4
votes
1answer
78 views

Configuring nagios notification settings to be very frequent

I've set up a Proxmox VE Cluster with three nodes. Each nodes has a number of VMs running on it. I'm using the PVE Monitor Plugin to set up the hosts and services, which works fine. My issue is that ...
4
votes
1answer
1k views

How best to monitor logstash?

I've seen this question on the mailing list a few times but haven't had a satisfactory answer. How best to monitor that the pipeline isn't stuck? Clients -> logstash -> elasticsearch. Logstash and ...
2
votes
2answers
80 views

Nagios Basic Configuration (for quick addition of new machines)

I recently started to use Nagios to monitor about 25 servers (mainly virtual, with some standalone). Them majority of the servers (including the Nagios host itself) are running Ubuntu 14.04 LTS, with ...
0
votes
1answer
33 views

Collectd “interface” plugin reporting cumulative value rather than rate

Collectd's interface plugin is supposed to report octets per second and packets per second, as documented here: https://collectd.org/wiki/index.php/Plugin:Interface, but for me, it reports cumulative ...
0
votes
1answer
63 views

Which Website/User uses the Server resources on Windows Server 2008? [closed]

I have a shared webhosting server based on Windows 2008/IIS 7/Plesk 11.0 .Most of the time Server's CPU usage is over 80% and MS SQL Server process uses most of the CPU/RAM resources. I want to know ...
0
votes
1answer
2k views

NSClient++ FAIL on Windows 2008 R2 — PDHCollector.cpp(215) Failed to query performance counters

I am attempting to monitor windows server 2008 r2 x64 Enterprise with Nagios. When I test/install the nsclientI get the following error: PDHCollector.cpp(215) Failed to query performance counters: ...
1
vote
0answers
21 views

How do I tell New Relic to forget my server? [closed]

Let's say I create a cluster of servers to run a task and I only want to monitor them while the task is running. Right before I shut down the servers, is there a New Relic command I can run---FROM ...
0
votes
1answer
476 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 ...