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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0
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0answers
5 views

Icinga2 node wizard does not set address

We have successfully installed Icinga2 on a master server and on several client nodes. We used the new icinga2 node wizard to setup first the master and then the nodes. After the process is ...
0
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0answers
18 views

LAMP CentOS page/folder Outbound Inbound bandwidth monitor

I have a site, the server provide only allow 2000GB/month ($0.02/GB extra). I have monitor the bandwidth in my control panel, every day, i have about 12GB Inbound, but 100GB+ Outbound, a number very ...
0
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2answers
2k 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 ...
3
votes
1answer
36 views

Alternative to iotop for non-root user without sudo privileges

I'm looking for an alternative to iotop. Here's my situation: I want to find out if a program is accessing the hard drive a lot while running. iotop requires root/sudo privileges. My account is on ...
1
vote
1answer
964 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 ...
2
votes
3answers
74 views

CPU and Memory usage monitoring for a single process

I need to monitor the CPU and Memory usage for a single process in an AIX server. The program runs 3 times a day. I need to find the way to capture statistics within some time intervals, lets say ...
0
votes
1answer
37 views

to check the url is live

I have written a script to check if our three URLs are up else echo down.now the problem is even if the URLs are down in that script I get the message URLs are up In the code I have greped 302 ...
0
votes
2answers
74 views

Constantly check if file is modified bash

I have a file called file1 I want in a script, whenever there is a change in it, do something, a beep sound actually. How do I do that ¿? Thank you in advance
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vote
2answers
64 views

React to incoming files in a directory on HP-UX

How can I achieve this logic using a script: Monitor new incoming files in a directory. If files are not received in the directory for 3 hours or if the received file is empty then do something. ...
1
vote
1answer
36 views

Cron job — If computer inactive for x minutes turn wifi off

I would like to have an alias command in my .bashrc that could be ran at startup. That states: If computer is inactive for X minutes then turn off wifi. How would I do that? I am currently using ...
0
votes
2answers
7k 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 ...
2
votes
1answer
524 views

Network bandwidth measurement on Solaris

I want to install pathtest or a program like it in a Sparc server running solaris 10. The purpose is to make a speedtest server to my remote sites. It is mentioned in pathtest FAQ that it only ...
1
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0answers
41 views

Need a script to send an email when an input has not changed for more that 30 minutes

I need a linux scrip that will send an sms when there is an input change and it has not gone to the initial state after 30 minutes, I have the following so far, but, I am sure there are few things ...
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9answers
6k views

Ensure a process is always running

I started hosting sites a while back using Cherokee. For external sources (FastCGI, etc) it has an option to launch the process if it can't find one running on the designated socket or port. This is ...
25
votes
5answers
15k views

How to determine which process is creating a file?

Given file path, how can I determine which process creates it (and/or reads/writes to it)?
1
vote
1answer
26 views

Start a service on a network request (socket activation)

I have a program that under normal activation listens on some port. I don't want the program running continuously. Is there a "quick and dirty" way to wrap the application in a shell script or ...
2
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0answers
17 views

Sending SMS in Linux? [duplicate]

How can we send a SMS message from a Linux server to mobile for notifying specific process status saying when a process goes down?
3
votes
2answers
438 views

Measuring CPU and Memory per user to distribute “cost” of a server [closed]

How should I implement approximately correct per-user monitoring on a server? I want a way to split the cost of a server between the users based on their usage. On newer machines (RHEL6) I would use ...
1
vote
1answer
91 views

SystemTap simple demo fails

Started learning SystemTap using RedHat's manual. Here is the example I'm trying to run. While executing stap open.stp I got the error: [root@ror6ax ~]# stap open.stp semantic error: while resolving ...
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0answers
35 views

monitor a process by matching the full cmdline

I'm looking for a software that can monitor a process (specified as a partial string/regexp match (e.g. grepping) in its full command-line) in terms of cpu and memory usage. If any of those processes ...
1
vote
2answers
184 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 - ...
3
votes
1answer
1k 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 ...
9
votes
2answers
158 views

Print pids and names of processes as they are created

From the question here, the OP wants to repeatedly poll the pid of a process using pidof in a shell script. Of course this is inefficient as a new process must be started for the pidof program ...
3
votes
2answers
283 views

find out the culprit process

This is rather a basic linux administration question. We have a CentOS linux machine running a production application. There are 10 application specific processes running on that machine. Once in ...
0
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1answer
50 views

How to move a file to another directory, as soon as it is created, in linux? [duplicate]

I want to move all the *.xxx file created in a directory to another directory. But, I want that as soon as the files are created, they should move to another directory. Please Help. Thanks in advance. ...
1
vote
0answers
51 views

When was my machine last touched?

It is occasionally useful for me to know when my machine (Debian wheezy) was last touched. To be precise, I mean the more recent of the times I typed on the keyboard or moved the mouse. When I ...
0
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0answers
15 views

Shell script to monitor log files going over a certain size [duplicate]

Due to another issue I'm tracking down, one of my app servers occasionally starts generating a large amount of errors and then becomes unresponsive. For now, the simple solution is to restart the ...
2
votes
1answer
2k views

What is the difference in CPU utilization between 'ps aux' and 'ps -ef'?

I use Ubuntu 12.04.1 Linux. I see a difference between %CPU and C output format of ps command for a process. It is not clearly noted in the ps man page. Man pages says: CODE HEADER ...
8
votes
4answers
622 views

Forcing an 'added' alias to every command

Is it possible to forcibly add a timing alias (for lack of a better way to phrase it) to every command in bash? For example, I would like to have a specific user who whenever a command is run, it is ...
1
vote
2answers
133 views

Remote monitoring Linux server from Ubuntu workstation via SSH [closed]

I am looking for a convenient way to monitor my Ubuntu server from my laptop (running Ubuntu Desktop). I understand this is easily achievable by SSHing to the server and running commands, but I'd like ...
2
votes
3answers
1k views

Cron job to check if PHP script is running, if not then run

I am wondering if someone might point me in the right direction. I've got little experience working with the Linux command line and recently due to various factors in work I've been required to gain ...
4
votes
4answers
183 views

List ports a process PID is listening on (preferably using iproute2 tools)?

I'm looking to list all ports a PID is currently listening on. How would you recommend I get this kind of data about a process? NOTE: I was surprised I could not easily find an answer to this!
1
vote
1answer
97 views

How to send a mail when someone remote connects to my server

I would like my server to send a mail to me when someone connects remotely over ssh to my server. who only gives me back the Username, TerminalID and Date. I cannot use only that, I need to check ...
4
votes
3answers
327 views

Open a directory and let it update itself using “tail -f”

Similar to my last question: Open a text file and let it update itself; is there a way I could do the same but for a folder instead? As I have a log folder, can I use tail -f with a folder? i.e. $ ...
1
vote
1answer
39 views

Find service by network activity

I see a strange DNS request at tcpdump and I want to find service which is originated from. I've already tried to find it with different monitoring tools but still no luck. Is there any proven ...
6
votes
2answers
83 views

Operations only on complete files [duplicate]

I have machine on which the files are uploaded by ftp. From this machine I would like to run cronjob and scp/rsync (simply copy them) to different machine in the same network. The problem is I don't ...
10
votes
3answers
855 views

Open a text file and let it update itself

How can I open a text file and let it update itself? Similar to the way top works. I want to open a log file and watch it update itself on the fly. I have just tried: $ tail error.log But just ...
2
votes
0answers
33 views

API Monitoring and Hooking

I am currently reading the "Malware Analyst's Cookbook and DVD". There is a chapter "Dynamic Analysis" and there are also some recipes about hooking and monitoring API calls of process but it is for ...
2
votes
3answers
213 views

Monitor history of USB flash drives

I have to setup a monitoring system for our internet server, to monitor which USB Flash Drives (Pen Drives) are mounted and unmounted and when.(This is to avoid misuse, and to capture which ...
5
votes
2answers
4k views

Monitor mode wifi only seeing broadcast packets

I have pretty much exhausted every link I have found on google regarding this topic, and I'd like some of the most experienced eyes on the problem, because something obscure must be going on. Systems ...
0
votes
1answer
421 views

Turning off mailing in psad

The psad monitoring tool keeps on sending lots of mail to my localhost admin account. I use my ubuntu server as a NAT router, and psad warned me to enable logging in iptables. After I did so, it ...
0
votes
0answers
40 views

Issues with net-SNMP . MRTG not generating graph to monitor network bandwidth

I am monitoring network bandwidth for my servers using MRTG . But suddenly can see graphs are not generated for one of the Linux servers running on CentOS 5.5 . SNMPD service is running on the server. ...
0
votes
1answer
40 views

CPU and Memory Usage

I want to monitor the CPU and Memory usage for long hours and find the average of that on a Linux server. Can anybody help me to monitor it using a script. I want to know the readings for around ...
9
votes
6answers
3k views

Is there a tool that allows logging of memory usage?

I want to monitor memory usage of a process, and I want this data to be logged. Does such a tool exist?
0
votes
3answers
75 views

Recommendations for Free Linux monitoring tools [closed]

My Linux version is Linux 3.4.76-65.111.amzn1.x86_64 x86_64. It's AWS. These days I'm suffering from the absence of monitoring tools, processes sometimes die without knowing it. My need is simple. ...
3
votes
1answer
111 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 ...
2
votes
2answers
149 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 ...
1
vote
1answer
210 views

Real vs Actual memory in Xymon/Hobbit

What is the difference between real and actual memory usage in xymon ?
6
votes
4answers
16k views

How to monitor incoming http requests

How can I monitor incoming HTTP requests to port 80? I have set up web hosting on my local machine using DynDNS and Nginx. I wanted to know how many request are made on my server every day. Currently ...