Obtaining real-time values of system parameters or events (processor load, server responsiveness, intrusion attempts, …), or getting alerted when certain events happen
10
votes
1answer
352 views
How to get an average pipe flow speed
If myfile is increasing over time, I can get the number of line per second using
tail -f | pv -lr > /dev/null
It gives instantaneous speed, not average.
How can I get the average speed (i.e the ...
1
vote
1answer
43 views
In Linux how would you see exactly what another process is doing if that process does not have logs?
In Linux how would you see exactly what another process is doing if that process does not have logs?
-4
votes
0answers
31 views
How to find the inode usage in % for Unix servers [closed]
I want to print the fileysystems whose inode usage exceeds certain percentage.
0
votes
1answer
19 views
Splunk Forwarder-->Monitoring/Capturing of Specific Events?
Currently Running CentOS7.
I am currently running into an issue with splunk forwarders.I need to be able to monitor the following for all Linux machines. Some of the following may only apply to ...
0
votes
0answers
9 views
How to add a host in Icinga2?
I'm having problem adding a host to Icinga2. I know that it is possible to add it via the following code:
sudo icinga2 node wizard
But I have a feeling that you could add the hosts yourself, ...
1
vote
1answer
27 views
Nagios memory free plug-in misbehaving after upgrade to Debian Stretch
We use Nagios here for monitoring our servers.
On the test servers I upgraded to Debian 9/Stretch, the memory monitoring box/object in our Nagios monitoring platform says CRITICAL and next to it, ...
2
votes
1answer
42 views
How do I tell who is connected to my network and how much bandwith they're using?
My router died today so I used nm-applet on xfce to make a wireless network using my computer and modem. It only appeared to support wep security so I felt I should keep track of who is connected but ...
1
vote
0answers
20 views
How reliable is one interval and one count option in SAR?
Let me explain what I have understood:
I see in /var/log/sa/ there are two kind of files sadd and sardd.
sadd is report in binary format, updated every 10 min through cron using /usr/lib64/sa/sa1, a ...
3
votes
0answers
21 views
Investigating annoying short UI hangs
I just bought a new desktop machine for home (see system details below). It's supposed to be super smooth, but nevertheless I'm experiencing quite frequent UI 'stutters'. It's as in the olden days ...
0
votes
1answer
27 views
How to use SNMP to get any information that we need in Redhat?
I am new to SNMP and I can not find any clear article if we can add a data node in SNMP. And also how does SNMP collect data?
I want to monitor the following resources, which can be obtained from ...
1
vote
0answers
23 views
Monitoring serial port data between virtual ports
I have a problem with monitoring data transferred between 3D printer and software over TCP.
I have 3D printer that is connected to Raspberry pi with usb cable. I'm using ser2net in rasbperry to ...
0
votes
1answer
27 views
How to monitor PHP-FPM in zabbix?
I want to monitor PHP-FPM in Zabbix. Tell me, please, how to do it?
Are there any templates to try it ?
3
votes
0answers
40 views
Nagios - Help with getting NRPE to work with check_fail2ban.sh
I am trying to monitor fail2ban with Nagios so, I found the following check via a Google search:
http://nagios.fm4dd.com/plugins/manual/check_fail2ban.htm
I am trying to get the check to work on a ...
0
votes
0answers
22 views
Why Mouse Activates 3D Image in non-evaluated NB of Debian Mathematica?
Condition: controlling 3D Image output of test code by mouse cause all CPUs to 100%; differential solutions do not help; no clicking of mouse on image
Motivation: to understand why mouse activates 3D ...
0
votes
0answers
41 views
CPU consumption (in percentage) of particular user's processes
How can I capture CPU consumption (in percentage) of particular user's processes in AIX?
I need this for a monitoring script.
I'd like to have result similar to the one shown in topas, but topas ...
0
votes
1answer
30 views
Using a Linux box in a bridge or router configuration for network/securing monitoring and analysis
My goal was to add a box between two routers I have so that I can monitor and analyze network traffic, use it as a syslog server for both routers, and mail alerts when appropriate. Although using an ...
0
votes
2answers
49 views
How to find which background tasks take most of my memory and CPU time?
While I probably need some kind of monitoring tool like mon or sysstat or something. I am looking for a way to know which tasks take the most of my memory,CPU time etc.
While I understand that each ...
0
votes
1answer
41 views
monitoring user activity in linux
I need to implement some kind of daemon that would check who logged in (with ip address) and when, what commands did that person use, and other basic stuff like differences in edited files that would ...
2
votes
2answers
94 views
Monitoring what program calls an executable file
I want to know what program calls a particular executable, including when that executable is used as an interpreter via a shebang line.
This is not quite the same problem as knowing what program ...
1
vote
1answer
21 views
Which program uses which package? [duplicate]
Updating my Linux server is mostly a stressed part for me. Like today. With yum update i see a new version of NodeJS, but from what i can remember nodejs has been used by a program which needs to be ...
0
votes
0answers
71 views
Problems with RT 2870/3070 packet injection
I recently installed latest version of Kali Linux on my PC and I have a RT 2870/3070 Ralink chipset wifi card...
I used the Wifi card before on the vmware and it worked just fine in monitor mode and ...
1
vote
2answers
45 views
System energy consumption monitoring
Do you know any apps that monitor system power consumption? Not just cpu, but all components, preferably?
UPDATE - powertop & powerstat
I found powertop, but it doesn't say much.
I've also ...
2
votes
0answers
37 views
How to monitor an HP-UX server for OS or hardware specific problems
It has been a while since I have last dealt with an HP-UX server. Therefore, my memory is not too fresh and I want to consult the public wisdom for this.
I have a task at hand to come up with a ...
0
votes
0answers
10 views
bb-mdsat XYMon monitor not working - Ignoring user change to 'monitoring' because user was set to 'mysql' earlier on command line
I am trying to set up bb-mysql.pl
https://wiki.xymonton.org/doku.php/monitors:bb-mysql#bb-mysqlpl
When I run this to test it, I get the folliwing :
/usr/lib/xymon/client/bin/xymoncmd /usr/lib/...
2
votes
4answers
68 views
Hearing the hard drive when nothing is supposed to use it
Sometimes I hear the hard drive physically working when nothing is supposed to be using it. Is there a way for me to see what is activating it ?
1
vote
1answer
92 views
linux: Is there a way to dump the task run queue?
I'm facing a strange extreme load issue on idle conditions.
Is there a way to directly dump the linux process scheduler run queue?
E.g. when sar -q outputs 400 as runq-sz, to get those 400 PIDs?
ps,...
0
votes
1answer
86 views
XYMon-Client status not showing in XYMon Server
I have installed XYMon server successfully, but I can't get the client information to show. It took me a while to figure out, but if you add a host to the server that doesn't have the client, it still ...
0
votes
1answer
44 views
How to interpret VFS usage chart
I'm monitoring an old laptop running as LAMP server. I have trouble understanding this VFS usage chart (sorry can't include images yet) from monitorix (the monitoring tool I'm using). I don't ...
1
vote
1answer
35 views
Event dispatcher in bash (Ubuntu Gnu/Linux) [duplicate]
Are there any methods or bash tools that can observe some events (such as creating a folder) and then do another actions?
0
votes
0answers
42 views
Linux Disk IO Statistics Across Devices
I've read a whole bunch of posts regarding methods of capturing disk IO on Linux, however none of them have answered the source of my confusion.
In my case, I am monitoring disk IO on Linux using ...
0
votes
0answers
38 views
CPU/RAM/Disk statistics similar to vnstat
Is there any application similar to vnstat, but for monitoring CPU usage (0-100%), number of active process, ram usage, active disk IO count/bandwidth on CLI basis? but I don't want something that ...
1
vote
2answers
36 views
How can I log how often a file is modified on OS X?
I would like to know which files in my system I access most often, as a gauge of how important they are. I know the OS records the last time the file was accessed. Is there someone way to log in a ...
3
votes
1answer
106 views
How to tell whether a process is network I/O intensive or not in user mode in Linux?
I am currently writing a program in Linux which needs to tell whether a specific process is network I/O intensive or not at runtime. I have tried some tools such as iotop and iftop, but none of them ...
1
vote
1answer
53 views
Will these commands return the same output on different Linux distributions? [closed]
I am writing a monitoring script. I am running it on a specific machine, and it works. It is planned to be ran on several Linux machines, not bound to a single distribution.
Here are the commands and ...
1
vote
1answer
60 views
How to bypass route path filtering (for ping)?
I know asymmetric is wrong and I do not want to use it. But on the other hand I have Linux server having multiple interfaces (prod, backup, interconnect) and I want to monitor them all - via ping for ...
1
vote
1answer
23 views
Getting the size of an URL with referenced content
Is there a recommendable way to get the bytes size of an URL with all referenced images, CSS and javascript files (the number of bytes a normal visitor has to receive before the page has fully loaded ...
1
vote
2answers
47 views
How to execute a command when internet is back
Sometimes my wifi is connected to router but my router is not connected to internet. How can I execute a command when my internet is back (from command line)? I want to execute:
mpg123 /home/user/...
0
votes
4answers
106 views
Ensure that cron daemon stays running
If on a debian 7 server (wheezy) running in a hosted VM and an up-to-date cron daemon there is a bug so cron stopped running without obvious reason. Since this only happened once ever since, it is ...
0
votes
1answer
108 views
Sensu remediation : not able to trigger client
I am a newbee to Sensu remediation i tried to restart process with custom script
Senario: if my http link goes down then i use to manually run the script and start it.
we moved to Sensu recently as ...
0
votes
1answer
177 views
Zabbix web install Redhat conflicts php
I am trying to install Zabbix on redhat 7 64bit. The zabbix server installed successfully with command yum install zabbix-server-mysql
But I am getting conflicts with php70u with php56u when I tried ...
0
votes
1answer
41 views
How do I monitor bash_history file for manual modifications?
I am trying to create a daemon to monitor a users's bash_history file for manual modifications. In other words, if a user opens the file and modifies it, the daemon will notify this action for safety ...
1
vote
1answer
173 views
udev monitor hotplug rule not running
I have setup a basic udev rule to detect when I connect or disconnect a mDP cable.
The file is /etc/udev/rules.d/95-monitor-hotplug.rules
KERNEL=="card0", SUBSYSTEM=="drm", ENV{DISPLAY}=":0", ENV{...
0
votes
0answers
29 views
Heartbeat with no utilization nor load with ganglia
I use ganglia to monitor my computer cluster. On Ganglia Web Interface, I sometimes have the following issue: given a node, according to the physical view and the node view, the node has sent a ...
1
vote
1answer
83 views
How to monitor system performance over time
I wrote the below script to determine how my system is holding up against various games. It checks all the vitals (GPU, RAM, and CPU) and then appends the data to a log file. Is this a reasonable ...
1
vote
1answer
100 views
Is there a way to monitor disk i/o patterns? (i.e. random or sequential i/o?)
While an application is running, I can monitor disk bandwidth usage using linux tools including dstat.
Now I'd like to know how many sequential or random disk I/Os are occurring in the system.
Does ...
1
vote
0answers
23 views
Graphics are NaN whereas no heartbeat was received: what could explain this?
I use ganglia to monitor my computer cluster. On Ganglia Web Interface, I sometimes have the following issue: given a node, according to the physical view and the node view, the node has sent a ...
2
votes
3answers
200 views
Monitoring a GPU cluster
I have 10 servers running on Ubuntu 14.04 x64. Each server has a few Nvidia GPUs. I am looking for a monitoring program that would allow me to view the GPU usage on all servers at a glance.
0
votes
1answer
22 views
monitor simple process output
On my system I can check a job's status using qstat:
$ qstat 2048930
Job ID Name User Time Use S Queue
------------------------- ---------------- ------------...
0
votes
2answers
58 views
How to find processes which uses the most RAM in last X seconds?
Could you please help me to sort this out?
I'm trying to write a bash script which will monitor ram usage (not only ram but cpu and network as well) and show me 3 processes which use the most ram in ...
0
votes
1answer
50 views
Network monitor - delay
I am currently running Kali Linux on Raspberry Pi 2 and using it as network monitor. I have developed my own C application with libpcap and I am getting average delay on LAN about 300 microseconds, ...
