Obtaining real-time values of system parameters or events (processor load, server responsiveness, intrusion attempts, …), or getting alerted when certain events happen

learn more… | top users | synonyms

10
votes
1answer
841 views

How can I make tmux monitor a window for inactivity?

I've switched from GNU Screen to tmux. They're both similar, except that tmux is still maintained. GNU Screen has a C-a _ ("silence") command. This command makes GNU Screen monitor the current ...
3
votes
2answers
500 views

PBS equivalent of 'top' command: avoid running 'qstat' repeatedly

When I run several jobs on a head node, I like to monitor the progress using the command top. However, when I'm using PBS to run several jobs on a cluster, top will of course not show these jobs, and ...
1
vote
1answer
14 views

How to integrate daemon scripts with sensu?

I have some daemon scripts that run in an infinite loop that do some action if a detected node has failed. For example; in AWS to move an Elastic IP. How can I integrate this script that runs in an ...
2
votes
1answer
25 views

Is there a brief way to view the top resource usage(CPU, memory or even bandwidth) of a program after its running?

I know I can use top to view the overall real-time CPU & Memory usage, and nload for overall real-time bandwidth usage. But I wish to view the maximum(or average) CPU, Memory, & bandwidth ...
0
votes
1answer
118 views

Cannot add host to icingaweb2

I installed Icinga2 and icingaweb2. I have the dashboard, view of hosts, services, etc. I can log in, log out, etc. Ok, now I want to monitor something. So I added a host to ...
2
votes
0answers
14 views

Smokeping list only systems down

I'm using smokeping to monitor our 400+-systems. Everything works and functions as it should. Only i want to make a view or a filter that only shows the lines that are down, or that match a certain ...
1
vote
1answer
13 views

Network Monitor Tun Interfaces

I am trying to setup monitoring for my openvpn setup. Everything I have found so far doesn't have good logging for anything but the main network connection. I already have logging of openvpn data ...
3
votes
1answer
2k views

Accounting for /proc/net/dev reported traffic

I noticed that according to /proc/net/dev I am constantly receiving around 6Kb/s on my wireless usb interface. But I can't account for anything even close to that with the individual connections that ...
1
vote
2answers
353 views

how does blktrace work?

I am trying to understand the Linux block layer so I am writing a blog about it: http://www.linuxintro.org/wiki/blktrAce. When calling blktrace like this: blktrace -d /dev/sdg -o - | blkparse -i - ...
1
vote
1answer
1k views

SMTP connectivity issue in Zenoss (“Connection unexpectedly closed”)

I am using Zenoss for monitoring purpose. I have been using its mail service for a long time. Suddenly my mail service in zenoss stopped and started showing <class ...
4
votes
4answers
51 views

How do see the memory used by a program in ubuntu?

How can I see the raw memory data used by an application ? Like , suppose I have a file name something.sh . Now I run the command ./something.sh , and then I want see all the data its accessing in ram ...
3
votes
4answers
897 views

List all open '.log' files in *nix

There are times as a system administrator, you might not be sure of the log file paths of a new application. Depending on the system, there may be multiple ways to find the same. Please share the ...
4
votes
3answers
137 views

Log monitoring using shell script

I would like to monitor a log file for errors and then send an email to administrators. The log file contains data like below 11 Aug 02:30 Service1 restarted 11 Aug 05:35 Service1 restarted 11 Aug ...
7
votes
2answers
5k views

Get CPU utilization stats from C program

I want to read the CPU utilization stats from a C program, I am interested in the percentage of use of CPU, steal time etc. These stats are shown in the 3rd row from the top command. I tried to parse ...
1
vote
2answers
41 views

Monitoring CPU usage by user

I'm looking for a tool which monitores the CPU usage (or CPU time) of all real/login users and which provides some kind of graphical representation of the accumulated data, e.g. a graph of CPU usage ...
7
votes
4answers
25k views

Bash script to detect when my server is down or offline

Background : I need to receive an alert when my server is down. When the server is down, maybe the Sysload collector will not be able to send any alert. To receive an alert when the server is down, I ...
0
votes
1answer
27 views

server mointoring / intrusion detection for home nas

I'm looking for some kind of monitor or intrusion detection to monitor my NAS. The following things I would like to monitor: Incoming network traffic (source -> Router -> NAS) from another country ...
4
votes
2answers
71 views

Stop writing to a capture file after it reaches a specific size

I'd like to monitor my network traffic of an specific interface to file. Then I would like to stop the interface if the traffic counts over 60mb total. Is there a possible way to do that?
2
votes
3answers
96 views

Monitor processes trying to access non-existent file or directory

We're moving websites from one server configuration to a new configuration and the websites will live in different paths than previously. We're planning to diligently go through and replace old paths ...
10
votes
4answers
3k views

How to run a command when a directory's contents are updated?

There is a directory A whose contents are changed frequently by other people. I have made a personal directory B where I keep all the files that have ever been in A. Currently I just occasionally ...
5
votes
1answer
37 views

Running Deamon Involving GPIO on Pi

I have a deamon that monitors various things using the GPIO ports. I have used python to write the code for this using the RPi.GPIO module. I would like to ensure that the deamon is always running, ...
4
votes
2answers
2k views

Access history of a file [duplicate]

I was wondering if there are any tools to keep track of the access history of a file. I know of stat, but as far as I understand, it only returns information about the last time the file was accessed. ...
4
votes
4answers
18k views

Linux file access monitoring

Is there any way in unix to find out who accessed certain file in last 1 week? It may be user or some script ftp it to some other place. Can I get a list of user name who accessed certain file? How ...
2
votes
1answer
30 views

Log when program is run

I am running a "kiosk" computer - one for general use for anybody in the room - and I want to know if anyone is actually using it. Is there a log that tells me when firefox, chromium or other ...
1
vote
0answers
50 views

How to capture tail -f output from remote host indefinitely

I am trying to monitor a remote, embedded host that is writing output to a file: /var/log/myapp.log This host may lose power for hours. The app may be killed and restarted. On my local machine, I ...
0
votes
2answers
56 views

Is there a good resource monitoring tool in linux?

I've been looking for a good resource monitor in linux for a couple of hours and all I have found is conky. Specifically I've been looking for something to monitor my core clock speeds. I've found ...
3
votes
1answer
43 views

Resource (CPU time and memory) limitation and termination of a process upon violation in Linux

The problem: Given a process, limit the resources it and its child-processes can use. I.e. set CPU time and virtual memory quotas. When the process group exceeds one of the limits, terminate it, ...
0
votes
0answers
20 views

Monitor application usage over time

I would like to monitor over time: the number of times applications are launched the time duration of the process the commands I have launched in the shell This is so as to have a rough estimate ...
2
votes
1answer
21 views

Is there a process logging tool for solaris?

Is there an existing tool for solaris/unix that keeps a history trail of the list of running processes. I'd like to be able to review backwards in time what processes were active/running. I can ...
-1
votes
1answer
33 views

Monitor Cpu & Ram Uasge Via Web

Sorry about that newbie question. But does anyone know how to make or where to find a script that will monitor CPU and ram usage, so i will be able to use it at my admin panel on web? I'm running a ...
0
votes
3answers
3k views

Console CPU utilisation chart

I need to monitor CPU and network utilisation from a terminal. For network traffic, I have found the perfect tool: slurm. It gives me a moving chart. It gives me an nCurses-like UI I can use from a ...
1
vote
1answer
39 views

Does orca + RICHPse work on Solaris Containers or local zones?

I have just attempted to get RICHPse version 3.4 running on a Solaris version 10 Sun M5000. It seems to run on the global zone but not on the local zones. On the local zones RICHPse just fails ...
7
votes
3answers
15k views

What can I use to monitor and log incoming/outgoing traffic to/from remote hosts?

I run a web server (Debian Squeeze on a VPS), and the graphs provided by the hosting company show consistently that around twice as much traffic is incoming to the server compared to the outgoing ...
4
votes
2answers
402 views

Is collectd able to send data tagged as a host other than itself?

I log various stats both generic and custom from a lot of different servers using collectd to a single host running a network listener. The setup is pretty simple. All the systems run an instance of ...
6
votes
3answers
580 views

Linux workstation monitoring tools

I am currently working in a company that runs Linux (openSUSE 12.1) on the workstations (about 200 computers). I am looking for a tool or methods that could allow me to monitor them remotely, upgrade ...
4
votes
2answers
92 views

how to execute a script everytime any USB get mounted

I use a script that writes all mountpoints of my devices to a textfile using df. How can I execute my script everytime any device (especially USB) is mounted? script to execute: #!/bin/bash # save ...
0
votes
1answer
82 views

CentOS 6 apcupsd Trouble Shooting

I'm having issues with the recommended UPS monitoring software apcupsd. It installed ok but when I run it and check the error messages it is getting spammed with all these messages and doesn't seem ...
2
votes
1answer
72 views

Is it possible to track bash commands in real time?

I'd like to know if I can track commands entered by user in a bash shell, in real time. What I'm trying to do is something similar to thefuck, but I need to prompt the user as and when he enters new ...
3
votes
3answers
802 views

How to restart (or reset) a running process in linux

I have two Linux systems communicating over sockets (Desktop and ARM-based development board). I want to restart (or reset) my client application (running on a development board) when server sends a ...
1
vote
0answers
37 views

FreeBSD: Control operational and administrative status of virtual interface

I'm looking for a way to freely control the administrative and operational status of a virtual interface as seen by a snmp get requests: $ snmptable -c public -v 2c myserver iftable SNMP table: ...
0
votes
1answer
69 views

How can I track commands executed in a terminal ( without bash_history )

I'm writing a program that tracks user activities, and basically tries to automate things that can be. I'm currently trying to monitor programs that user uses often from command line. But just ...
3
votes
2answers
88 views

What is stopping our UDP packets (how does it know the route is down)?

We have a server (camera) sending RTSP video packets via UDP. At a customer site it travels over several hops, one of which may be an unreliable WiFi link that drops the odd packet or five. Usually ...
2
votes
1answer
66 views

How to monitor the opening and closing of files?

I'm writing an AI personal assistant. One part of the software is a monitor daemon. A small process that monitor's user's active windows. I'm using python( with libwnck and psutils for obtaining info ...
1
vote
0answers
21 views

Sample monitoring of ZFS using mrtg

Was wondering if anyone has a quick and simple mrtg hack to monitor a ZFS file system, thought it would be wise to ask before writing one up myself....
4
votes
3answers
370 views

On a Linux system, see how busy is file system

I want to know of a command that will show me how (currently) busy is the file system. I'm assuming there exists such a command that will show me this. With such command, are there specific arguments ...
0
votes
4answers
129 views

How to track/log commands executed on a shell?

Can commands be written to a logfile before they were executed in any shells? I know there is a patch for ssh to log all commands from ssh sessions, but i want to log even commands executed from a ...
3
votes
3answers
45 views

Is there a way of listing all the instances when a particular file was modified/edited?

I currently have a file abc.txt. I am curious to know if it is possible to see all the instances when this file was edited, from the date it was created? Q: How can I make it possible [if I would ...
2
votes
2answers
816 views

Is there a way to get “top” to run exactly once and exit?

I find the output of the shell command top to be a simple and familiar way to get a rough idea of the health of a machine. I'd like to serve top's output (or something very similar to it) from a tiny ...
0
votes
0answers
12 views

Measure data submited to a blocked ip adress in iptables

With: sudo iptables -A INPUT -p all -d $ip -j DROP One can drop all packets submitted to an ip adress (or a range of ip adresses). This method is useful if you want to prevent applications from ...
1
vote
0answers
34 views

Passing a parameter to a dstat plugin

I wrote a simple plugin (dstat_externalBackup.py) for dstat to monitor the filesystem free space and placed it in /usr/share/dstat and it works as intended. € dstat --externalBackup 3600 extern free ...