Questions tagged [monitoring]
Applications or appliances that observe machines, systems and networks to find problems and notify administrators.
2,468
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With virtualization, does it still make sense to use multiple mount points?
In 2013, does it make sense to still have multiple mount points on a new Linux image, or does allocating all space to / make more sense?
I'd prefer to avoid the reboot required to increase the size ...
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1
answer
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how to set up monit to monitor disk-space
I use monit on my server to monitor apache and mysql running.
Now I want to add an alert if the disk gets too full. I added this for testing in /etc/monit/monitrc:
check device rootfs with path /dev/...
15
votes
2
answers
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Disable Monit alerts when PID changed
When you monitor a process with Monit by its pid, like :
check process blop with pidfile /.../blop.pid
start program = "..."
stop program = "..."
you get an alert when the pidfile is ...
15
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6
answers
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How do I passively monitor the Windows Event Log?
How can I monitor the Windows Event Log remotely such that I will be informed automatically when certain events occur?
There are plenty of active monitoring solutions, but they require human ...
15
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2
answers
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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 ...
15
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4
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Windows DHCP Server - get notification when a non-AD joined device gets an IP address
SCENARIO
To simplify this down to it's easiest example:
I have a Windows 2008 R2 standard DC with the DHCP server role. It hands out IPs via various IPv4 scopes, no problem there.
WHAT I'D LIKE
I ...
15
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4
answers
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Disk Capacity Planning for Whisper / Graphite
Does anyone have any formulas, or maybe some sample data from their environment that can help me estimate how much disk space will be used by graphite per datapoint?
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4
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How to Monitor Bandwidth usage in real terms
I have a small (windows) network with a few people on it.
We have internet access via a BT router
Generally things are all fine, but occasionally, we seem to experience a dramatic loss of bandwidth....
14
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4
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Monitor open process files on Linux in real-time
The files opened by a process can be found with this command:
ls -l /proc/PID/fd
Is there any way that can be done in a more interactive way like tail, auto-refreshing every x seconds?
14
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5
answers
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How to run a command once a ZFS scrub *completes*?
I would like to use cron to schedule periodic scrubs of my ZFS pool, and at some reasonably short time after the scrub finishes, email a status report to myself. The purpose of this is to catch any ...
14
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5
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What is the best way to monitor a production server?
We are running two production servers with Apache 2 and MySQL. I am looking for a reliable way of monitoring our load, stability and uptime.
I have come across monit, but are there better ...
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5
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How do you monitor a monitoring server?
So we run Groundworks (with Nagios) on CentOS to monitor our various servers and processes. I have it setup to automatically send emails and SMS texts when things reach a WARNING or CRITICAL state. ...
14
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16
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Real time monitoring of MS Windows servers and their services
We have a bunch of large HDTVs in our monitoring office keeping an eye on all of our production equipment.
We are monitoring:
Cisco routers
HP switches
HP proliant servers
Windows 2003
IIS
SQL ...
14
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4
answers
8k
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Does anyone know a simple way to monitor root process spawn
I want to exec a script when a new root process spawns. (on Linux) How can I simply do that ?
Thanks
14
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11
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Server monitoring? [duplicate]
Possible Duplicate:
What tool do you use to monitor your servers?
is there a free, open source server monitoring tool like Nagios that runs on the MS stack? It will need to be able to detect ...
14
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6
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Best method to track folder size growth over time?
I have a file server that has a pretty large folder tree. There's a shared folder, under that are 5 departmental folders. Nested inside of those are thousands of subfolders and files.
I would like ...
14
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5
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How to monitor glusterfs volumes
Glusterfs, while being a nice distributed filesystem, provides almost no way to monitor it's integrity. Servers can come and go, bricks might get stale or fail and I afraid to know about that when it ...
14
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1
answer
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Common WQL Monitoring Queries
What WQL queries would you use for monitoring typical Windows bottlenecks? Which would you use to obtain data similar to 'top' or 'netstat'? What interval would you poll at?
Here are a few that I ...
14
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4
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Log transport and aggregation at scale
How're you analysing log files from UNIX/Linux machines? We run several hundred servers which all generate their own log files, either directly or through syslog. I'm looking for a decent solution to ...
13
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8
answers
102k
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View "Task Manager" type display remotely
Is it possible to view a remote computers "Task Manager" information locally?
I'd like to be able to see the process list of a remote XP computer in the same sort of format as "Windows Task Manager" ...
13
votes
2
answers
4k
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Detect spammers on my server
I recently got one Undelivered Mail Returned to Sender while sending my newsletter to one of my 1500 customers. My website uses a double-opt-in procedure to make sure, the user explicitly want to ...
13
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8
answers
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Key differences between Nagios and Open NMS?
I am looking to pitch a comprehensive monitoring system to my manager, and have been considering OpenNMS. However, I have seen glowing praise of Nagios on here and I was hoping someone with experience ...
13
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6
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Monitor a Windows Server using SNMP
How hard can this be? I want to get the current CPU performance from a remote Win 2k3 machine. I need to use SNMP because the machine is behind a firewall.
Assumptions:
I understand networking/can ...
12
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9
answers
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Should old servers be retired
I have servers which are still running well but are over 5 years old. They are still doing the job perfectly and there will be no advantage to upgrade the servers, should I just let them run forever ...
12
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6
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Simple way of restarting crashed processes?
I need to monitor several processes running on my webserver. For some reason, varnish currently crashes once every day or two. I'm using monit to supposedly restart varnish automatically, but it doesn'...
12
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17
answers
4k
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MySQL monitoring tools
What tools do you use to monitor the health of your MySQL server instance? Are they for free or commercial?
12
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3
answers
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Alternative to etsy/statsd
Is there any alternative to etsy's statsd? Maybe even a complete dashboard-like solution? My research only found proprietary SaaS solutions.
For those who do not know: statsd is a deamon which ...
12
votes
1
answer
20k
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Free alternatives to M/Monit interface for the Monit systems management system [closed]
I really like Monit systems management system but I have no IT
budget to purchase M/Monit interface which is used to manage multiple
hosts for our small university lab. I have checked out Ruby based
...
12
votes
2
answers
2k
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Geographically distributed, fault-tolerant and "intelligent" application/host monitoring systems
Greetings,
I'd like to ask the collectives opinion and view on distributed monitoring systems, what do you use and what are you aware of which might tick my boxes?
The requirements are quite complex;...
12
votes
1
answer
4k
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Is anyone using an SNMP and/or WMI poller to push custom metrics to Amazon CloudWatch, and if so how?
Amazon CloudWatch has a decent console, and an alarm system which uses Amazon SNS for notifications.
Originally it only gave you AWS metrics, e.g. EC2 instance CPU utilization.
Recently they added ...
11
votes
7
answers
2k
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Uptime Monitoring Every Second - Bad For the Server?
I'm wondering if there's avantages of checking if a server is UP by doing a "HTTP GET Request" every second?
Can any server handle it?
11
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10
answers
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How do I monitor multiple screens on one computer? (Say in a classroom?) [closed]
I am a teacher in a small computer-based class. The kiddos are young and I cant stand behind each computer making sure they are not on Itunes or solitaire.
From my computer screen, is there a way to ...
11
votes
5
answers
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How to measure solaris process memory usage?
How to check how much memory a solaris process consumes? I'd like both total address space allocated and the amount that is resident in RAM.
I tried summing pmap output with some awk script, but it ...
11
votes
5
answers
8k
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Can Salt (Saltstack) gather and relay data for Graphite, Ganglia, or Zenoss?
I'm starting a new project and considering using Ansible or Salt for deployment automation and, perhaps, more sophisticated orchestration (server management and federation).
With Salt I'm wondering ...
11
votes
3
answers
939
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Which tool to use when monitoring machines (linux+windows) with one way communication? [closed]
I have 100+ machines which needs to be monitored, mostly linux, but there are some Windows servers too. I want to be informed when the disks are getting full, when the load is high, or a service is ...
11
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2
answers
24k
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How can I get an email alert when RAID array is degraded? VMware ESXi 5.0, MegaRAID SAS 9260-4i
We have recently bought a "white box" server to run VMware ESXi 5.0 (we're planning to use the vSphere 5 Essentials Kit). According to VMware's Compatibility Guide, the server's LSI Logic MegaRAID SAS ...
11
votes
2
answers
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Monit lists Apache as Not Monitored
I've just installed and configured monit according to the monit documentation. All services apart from Apache are listed as Running, but Apache says Not Monitored.
The relevant lines in monit's ...
11
votes
1
answer
4k
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FreeBSD: periodic(8) is too noisy. How can I control the noise level?
FreeBSD & MacOSX ship with the the periodic(8) utility, which is a neatly organized set of utilities to periodically run system functions like ZFS filesystem checks, security checks, checking for ...
11
votes
2
answers
2k
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Snort Performance Monitoring
Using snort version 2.8.6, I am attempting to collect application performance stats such as
Number of packets not processed due to application overload
Percentage of time in processing layers (...
11
votes
2
answers
4k
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How to automate zabbix web scenarios for vhosts?
I'm new to Zabbix and enterprise monitoring. I've just finished installing Zabbix 2.4.
I'm trying to monitor the state of all our vhosts dislocated on different servers.
Until now the only solution I ...
10
votes
19
answers
2k
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As a system administrator, what Firefox plugin helps you do your job? [closed]
I know that there are several Firefox plugins that are invaluable for development. What plugins exist that are useful for system administration, monitoring, and the like? What plugins make your day-...
10
votes
5
answers
42k
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Monitor ssh on non-default port with Nagios
I just deployed Nagios on a Gentoo server and everything is fine except ssh, which it marks as "CRITICAL" because it's refusing connections. But that's because it's running on a port different from ...
10
votes
9
answers
19k
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Colour tail of Apache logs
Monitoring apache logs with tail –f tends gets very frustrating for the eyes after a while. Are there any tool/options to colorize the log outputs? Maybe signal FATAL with red, etc...
10
votes
4
answers
35k
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Disk/RAID Monitoring for HP Proliant Servers and Ubuntu 12.04
How can I monitor the status of the hard disks and the RAIDs of an HP Proliant server using Ubuntu 12.04. In Ubuntu 10.04 I could use the cciss-vol-status to query the RAID status periodically but ...
10
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8
answers
17k
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Simple web server monitoring (alive)
Any tip about software to monitor if a web server is up and running on linux ? It should be able to run with not knowing anything more than the URL. And it must have functionality to send an email ...
10
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9
answers
38k
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Using a laptop as an external monitor and keyboard for a server?
Is there a way to use an old laptop as an external keyboard and monitor for my rack servers?
10
votes
6
answers
462
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Taming an existing network [closed]
I have recently joined a company as the sole IT guy and I'm struggling to get a handle on what software and hardware we own and how it is deployed. Keeping in mind my limited time and budget, what ...
10
votes
3
answers
7k
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calculating days until disk is full
We use graphite to track history of disk utilisation over time. Our alerting system looks at the data from graphite to alert us when the free space falls below a certain number of blocks.
I'd like to ...
10
votes
4
answers
13k
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Nagios remote monitoring: NRPE Vs. SSH
We use Nagios to monitor quite a few (~130) servers. We monitor CPU, Disk, RAM and a few other things on each server. I've always used SSH to run the remote commands, purely because it requires little ...
10
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6
answers
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How do *you* track and document routine maintenance?
What software or system do you guys out on server fault use to remind you to do routine maintenance? How do you checklist and log the various items you are supposed to check? Do you have an internal ...