Questions tagged [monitoring]

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

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3answers
5k views

Why does MemTotal in /proc/meminfo change?

I monitor value from /proc/meminfo file, namely the MemTotal: number. It changes if a ram module breaks, roughly by size of the memory module - this is obvious. I know the definition for the field ...
4
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1answer
71 views

How to get more accurate feedback about when a program is shutdown?

I am running some software that takes a while to quit. It must write some large database files. I have observed that, if I run the software from within xterm, when pressing "quit", the application's ...
3
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3answers
4k views

Monitor CPU Registers

I'm looking for such tool, to see state of CPU registers, eax, ebx, ecx, edx. I've discovered cpuid: eax in eax ebx ecx edx 00000000 0000000d 756e6547 6c65746e 49656e69 00000001 ...
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0answers
2k views

Why are ifconfig's rx/tx bytes reset?

I save every 30 minutes ifconfig's rx and tx bytes for a given interface (ppp) and I see most of the time a steady increase but there are lots of drops/decreased, as if ifconfig's counter was reset ...
1
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0answers
79 views

memory consumption alert

My VPS has reported a memory consumption alert says reached 273% and I cannot access any of my sites. But I checked on the terminal today and it does not look like a memory problem. Am I correct in ...
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1answer
1k views

Nagios Core Acknowledgement notification (email)

Nagios Core 3.X on RHEL. I want to know how to send an email to the relevant contact group when someone Acks an alert.
0
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1answer
59 views

w command: same output with(out) -u option?

According to the manpage for w: -u   Ignores the username while figuring out the current process and cpu times. To demonstrate this, do a "su" and do a "w" and a "w -u". I've tried this with(...
2
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3answers
771 views

tenshi and logfiles

I'm about to set up Tenshi in order to get important log excerpts. Everything works fine except if I add some apache2 logs, # /etc/tenshi/tenshi.conf ... set logfile /var/log/apache2/error.log I ...
1
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3answers
942 views

Detect process if not found then run it

I am running several process at startup using "crontab -e" @reboot tranmission-daemon && python defualt.py && python MonitorService.py But for some reason, those service can ...
-1
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2answers
642 views

Bandwidth Management tool

There are tools available like MRTG , Cacti etc through which we can monitor network traffic on network interfaces on a host. The network traffic flow information that is provided by these tools is ...
4
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1answer
11k views

how can I retrieve disk IO utilization in percents on HP-UX

I need to collect data about disk utilization for selected disks. I can use glance-plus monitoring tool to display the current data in percents (it looks similar to top), but I need to collect these ...
3
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2answers
2k 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 - I ...
2
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1answer
3k views

udev rule for bluetooth device Logitech

I want to write udev rule for a Logitec Bluetooth. My keyboard and mouse connect to PC as one Bluetooth device. When I monitor udev, I see there are separate events for keyboard and mouse. I want to ...
0
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1answer
704 views

What tool to use to monitor network issues? [closed]

I need a network analysis tool that can find if there are some issues regarding: packet transmission sessions any other stuff is welcome. I'm connected to the appliance I need to check with a cross ...
11
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2answers
1k views

How can I track executables created by my user on Linux?

Using Linux, I would like to track the executables that are executed in my name, including the whole command line (in practice, every exec*() done as my own user). A program I do not control is ...
13
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1answer
45k views

iostat: await vs. svctm

In the iostat manpage I have found these two similar columns: await The average time (in milliseconds) for I/O requests issued to the device to be served. This includes the time spent by ...
1
vote
1answer
14k views

No response from remote host for Nagios check_snmp_mem.pl plugin

Trying to setup memory usage monitoring for Nagios using the check_snmp_mem.pl from Nagios SNMP plugin. I could not even get it working from the command line, I mean I go to /usr/lib/nagios/plugins ...
10
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2answers
2k views

How do I get the current bandwidth speed of an interface from the terminal?

I want to get the current Bandwidth of an interface say "eth0" from the terminal. It better be as simple as possible. Say up 10 dn 30. Instead of giving out a lot of text like "vnstat" does. ...
2
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1answer
3k views

With NIS users, how to find out which users are currently logged in?

I'm using a NIS server to control 100 clients. I'm using NIS for centralized authentication and NFS to share the home directory. The main problem I'm facing is that I cannot find out which users are ...
8
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2answers
2k views

How to measure PCI-Express bus usage?

I'm looking for a way to find out if PCIe bus is the bottleneck or not. It's not a problem to measure how much bytes was transferred through any particular NIC: Is there a way to find how much data ...
4
votes
2answers
599 views

Is there a tool for tracking uptimes across reboots?

A tool such as this might on the surface appear to serve no real useful purpose, but people that take care of systems like to brag, and uptime is just one of those things that they like to brag about ...
2
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4answers
112 views

Is it possible to trace Linux source from initial bootup to desktop-GUI userland code?

I am wondering if, since Linux is 100% open-source, it is possible to follow line-by-line instructions of Linux to observe how the OS works entirely, so that one may get a better knowledge of how OSes ...
3
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1answer
948 views

CUPS and printer security

I would like some help on securing a networked printer. Specifically, I'm interested in the following: Preventing unauthorized access to the printer: I would like only certain laptops that connect to ...
1
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1answer
79 views

Where can I find hplip debug documentation?

I need to monitor HP printer state (ink, paper, etc). Hplip has hp-info tool with debug-mode and very verbose output. But I can't find any documentation with explanation of its data. For example: hp-...
5
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1answer
10k views

log network activity in ubuntu server

I administer an Ubunu Server exposed to the internet and have the need to monitor and keep track of all the network activity in a manner that allows me to analyze it afterwards. I already tried some ...
4
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2answers
2k views

Bind9 — How to find which programs are making which dns lookups?

Using bind9 on a laptop shows lots of nonsense domains when network connectivity is down: Oct 18 19:56:18 lap3 named[1536]: error (network unreachable) resolving './NS/IN': 128.63.2.53#53 Oct 18 19:...
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4answers
2k 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 ...
2
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1answer
95 views

starts logging when the limits are hit

/etc/security/limits.conf. The file is responsible to limit resources of users/groups on a Linux server. Unfortunately, the file does not generate any logs (or the case could be that I do not really ...
0
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3answers
32k views

CPU usage monitoring in AIX servers

In order to monitor the CPU usage in an AIX server I'm using the following script that is executed every 10 mins. lparstat 2 10 > cpu usage=$(tail -10 cpu | awk 'BEGIN {sum=0;} {sum+=$4} END{print ...
1
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2answers
329 views

Linux statistics script (Google analytics-like)

We own a few servers, each with about 100 users on it, some with 1 domain, some with a few. I'm looking for a script which runs in the background which can provide information about which users uses ...
2
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0answers
725 views

cannot set up lm-sensors propetly

I actually try to get lm-sensors to work as I wish. And my only wish is to see how the cpu is doing. (Optional HDD's, FSB and I'm open your suggestions) So I run Debian wheezy, and did a apt-get ...
17
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5answers
54k views

monitoring file changes + process access to files

I would like to see what's happening in my app server folders, i.e. which files are changed by process x or which *.war files have been changed (replaced/created) in the last x minutes. Is there a ...
0
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2answers
2k views

How to monitor average stats of CPU and memory usage of a Solaris server using scripts?

I need to monitor average CPU and memory usage for a Solaris server. How can I automate the process using scripts to monitor daily CPU and memory usage and give it as an average over a month?
4
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4answers
5k views

how to monitor up time and down time of a linux service

How to monitor up time and down time of a linux service. I have created a service for my application using chkconfig (RHEL 6.3). I want monitor when the service is turned started and stopped. I can ...
5
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1answer
327 views

Monitor a process in Debian

I want to create a service that monitors the existence of a certain process. I wrote the following shell script: #!/bin/sh while : do w=`ps u -A | grep -P ".+Sl.+/usr/local/MySource/endpoint" -c` ...
35
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3answers
42k views

Determining Specific File Responsible for High I/O

This is a simple problem but the first time I've ever had to actually fix it: finding which specific files/inodes are the targets of the most I/O. I'd like to be able to get a general system overview, ...
32
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8answers
150k views

Health check of web page using curl

I'd like to do a health check of a service by calling a specific url on it. Feels like the simplest solution would be to use cron to do the check every minute or so. In case of errors, cron sends me ...
2
votes
1answer
2k views

SSH alerts for outside IP addresses

So i have a script that emails me if a login is from anything besides an ip address that starts with "10.1.": #!/usr/bin/python import smtplib, os server = "10.10.10.10" From = "address1@example....
11
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4answers
12k views

Possible to get SMS/text message notification when process ends or is killed?

There are scripts that will send an e-mail when a server process is finished. However, I do not want to check my email every so often just to see whether a job has finished. Therefore I'd like to get ...
4
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4answers
2k views

Is there any way to see how much data I sent via Internet?

A big German ISP (Telekom) recently decided to volume limit their DSL internet connection to 75GB per month. Now I would like to know how much I download / upload. I use Linux Mint 14 Nadia and I ...
0
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1answer
637 views

How can I see the rate of my wireless card?

I am setting manually the bit-rate of my wireless card ! sudo iwconfig wlan0 rate 54M Where can I see if it is applied, because the command does not give any feedback !!!
1
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1answer
978 views

How to remotely check if Apache server responds?

I have 2 servers. One of them often crashes. I want to send a SMS to my phone when it crashes. I wrote this simple bash script in another server and put it in crontab to run every 10 minutes. wget --...
0
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1answer
75 views

High Availability of Services

I want to monitor a couple of services in linux. In case they go down I want to restart them. I'm writing a crontab which will get the name of the services using jps command every 60 seconds, and if ...
0
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1answer
116 views

Does IPTraf includes its own activity in the report?

Does IPTraf includes its own activity in the report? If it does how do I exclude it?
17
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1answer
3k 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
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1answer
2k views

Writing triggers for mcelog

Just starting to look into mcelog for the first time (I've enabled it and seen syslog output before, but this is the first time I'm trying to do something non-default). I'm looking for information on ...
3
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1answer
1k views

Power consumption monitoring problem

I used powertop v.2.1 under Ubuntu 12.04 but it missed the power est. column.It's the same situation as described https://bugzilla.redhat.com/show_bug.cgi?id=796068‎ and that bug is supposed to be ...
2
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3answers
867 views

Was my CPU kinda broken?

Today I've received some message from mcelog utility, Processor 3 heated above trip temperature. Throttling enabled. Please check your system cooling. Performance will be impacted It happens when I ...
2
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2answers
4k views

IBM V7000 scripts for monitoring

Hello (I'm no hard core coder:), I try to develop a script to do some very basic monitoring on an IBM SVC. My goal is to get some information about the nodes and my quroum status and then send ...
1
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2answers
589 views

Monitoring script started by rc.local

We have a C program which is started using rc.local´. We added a line like this: /usr/local/bin/pc to the rc.local file. pc is a compiled C program. Everything is working fine at the moment. What ...