Network monitoring systems check and report the status of network components, so administrators are alerted by degraded performance or outages.

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0
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1answer
13 views

How to broadcast a folder in network of class B network?

I want my specific folder on every pc which is in common network of my college so how to broadcast that folder is there any command like ssh? please help me fast.
2
votes
1answer
29 views

execute script when mobile device logs onto lan

I am trying to find a way to execute a scripts on home computer as soon as a mobile device logs onto my home network. Fing and NMAP are the tools I need but trigger is posing a problem. Any ...
0
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0answers
15 views

Program for controlling WIFI modem

Now I am using MTS mblaze wifi modem for internat. It creates a wifi network and maximum 6 user can connect to internet by it. Of course they have to give the password. As I am is the admin so I want ...
1
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1answer
135 views

Error for wireless request “Set Frequency” (8B04) :

I have setup a monitoring interface using: sudo airmon-ng start wlan0 channel 11 sudo iwconfig wlan0 IEEE 802.11bgn ESSID:"" Mode:Managed Frequency:2.437 GHz Access Point: ...
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1answer
33 views

arp-scan command displays (Unknown)

this command sudo arp-scan --interface=wlan0 --localnet display the following results: 192.168.1.1 *:*:*:*:*:* D-Link Corporation 192.168.1.101 *:*:*:*:*:* (Unknown) why i can't see the name ...
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0answers
59 views

java.lang.OutOfMemoryError: Java heap space

I'm using Hadoop in my application, but just before the program exits I get this error java.lang.OutOfMemoryError: Java heap space I already modified the mapred-site.xml and added this property to it ...
0
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2answers
78 views

How can I access network statistics (like bandwith/data usage) in logs for the past 2 weeks?

I want to extract network statistics of past two weeks. It should contain information like the uploads and downloads, also the network speed (bandwith ) I received. I tried system monitor, but ...
0
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1answer
55 views

VPS bandwidth usage

I am using Ubuntu 14.04 for my VPS. Recently I have noticed an extreme download on it, but I don't know what is the website/service that may cause that. I have looked through but most solutions are ...
1
vote
1answer
85 views

Monitor PPPOE connection with vnstat

I've try vahid@DEMON:~$ ifconfig eth0 Link encap:Ethernet ... lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 ... ppp0 Link encap:Point-to-Point ...
1
vote
2answers
1k views

How to increase JAVA Heap Size?

I need to increase the default java heap size to get OpenNMS Linkd service running smoothly, and fortunately I have 4/5 of my total installed memory free at any given time even when their is maximum ...
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0answers
30 views

long term log of all traffic

I have connected my ubuntu 14.04 computer to a "mirrored" port on my firewall, so that I can see all traffic on the network. I use this today to see who uses our bandwidth with NTOPNG. but since I ...
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0answers
20 views

Having problems with internet

how to find if all devices connected to my internet(wired) are safe and does not slow down the network or cause harm? there are some devices like "ket-LuAN7OUO" and "bus-socket"!!! i used "netstat -a" ...
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0answers
91 views

Network traffic monitoring for unexperienced users

I'm a really unexperienced Ubuntu user and I'm having a hard time monitoring my network traffic. I just need to know what websites each one of the devices connected to my network are accessing. I've ...
0
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0answers
213 views

Flowview plugin for Cacti on ubuntu 12.04

I have installed the cacti0.8.8 in my ubuntu 12.04 box and right now I'm trying to integrate the Real Time Bandwidth monitoring for my network(Individual IP Based).I have went through different forums ...
0
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0answers
41 views

Security Issues in Hotspot

I list the device connected through ap-hotspot with arp -a Can I have following privilege over the device connected in my hotspot*: Disabling the device connected to my hotspot i.e assuming three ...
3
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2answers
2k views

Listing DEVICES connected in HOTSPOT through Terminal

I connect my hotspot through ap-hotspot and I can see the notifications pop out displaying new device connected , device disconnected. (Because I want to learn about priveliges for access to use or ...
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0answers
18 views

change behavior of network/internet icon in ubuntu

internet icon in ubuntu desktop just check connect to the modem or network but it don't check connection to the internet I want to change it's behavior to check both of them. something like network ...
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0answers
50 views

How do I monitor the network health of an Ubuntu server?

We have a Ubuntu box in the cloud and our cloud provider has networking issues sometimes which makes the box unable to communicate with the outside world. At times, it's the DNS server, at times, it's ...
0
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2answers
67 views

tool/command to know the speed of individual network connections

From my Ubuntu server i usually connect to different networks for codebase/builds downloads. Is it possible to monitor the speed that I get while downloading/uploading from these individual servers. ...
0
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3answers
167 views

Is there any linux in built application or any method to find the network usage(data usage) of the internet connection?

Is there any linux in built application or any method to find the network usage(data usage) of the internet connection? I know there are many softwares that can be installed into os for this purpose. ...
1
vote
1answer
78 views

Receiving obscure data after upgrade to 14.04

I upgraded to 14.04 recently (obviously). Since the upgrade, I started noticing that my internet was extremely slow for the first couple of minutes. Checking the system monitor, it seems that my ...
0
votes
1answer
36 views

Check what connections a software / application is trying to make

How to check what urls and ports a particular application or software is trying to access? Does it require Wireshark of something?
0
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1answer
52 views

Unusual network activity

I noticed that my network monitor was showing intense activity (mostly download at high rates) even though my browser wasnt loading any pages. I installed nethogs and checked the usage and got the ...
7
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3answers
3k views

How to monitor, who is pinging me?

Is there a way to know who is pinging my PC on my network. Is it possible to monitor all ICMP packets , how can i do that ?
2
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1answer
217 views

Scan for new wireless networks continuously in adhoc mode

I have two laptops in an ad-hoc mode (with same essid, broadcast id, etc.). Sometimes, they don't ping each other even though they are next to each other. I always have to initiate a scan from each ...
3
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1answer
1k views

Why doesn't System Monitor show activity over ethernet connections?

In the Network history graph of System Monitor, network activity over Wi-Fi shows up fine, but activity over wired ethernet doesn't show up at all. Using lspci, my ethernet adapter shows up as ...
0
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1answer
87 views

which is strong ubuntu dist or windows? [closed]

Gentlemen, i am using windows in my company. I want to secure my system or to secure my company systems. should my company use linux(ubuntu) to become more secure than windows 8 ? what also the ...
0
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2answers
56 views

Monitor disk usage changes to infer download speed

I'm testing various solutions for downloading large datasets, downloads which can take weeks and require several restarts. Instead of monitoring network speed, I'd like to use the change in disk usage ...
2
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0answers
140 views

found someone lurking in my LAN, not sure what to do next

I have DD WRT router with internal numbers all falling within 192.168.1.0/24. I was looking on my firewall records this morning and found someone at 10.10.109.100 got blocked from accessing port 5353 ...
4
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0answers
474 views

System monitor network speed monitor not working for LAN but works for my Wi-fi

I'm on Ubuntu 13.10. I generally use wi-fi to connect to the internet. But Yesterday my wi-fi router occurred some problem and now it's out for warranty. So temporarily I'm using LAN. System monitor ...
1
vote
1answer
52 views

How can I make Xubuntu automatically tally the number of times a machine loads?

I would like to pilot Xubuntu in a school computer lab environment. The solution requires shared access devices that are independent of the school's Windows environment. I would like to collect data ...
7
votes
1answer
6k views

List all internet connections

I'd like to know all the connections by system is making to the internet. I did netstat but it shows a lot of connections - all of which aren't applicable I think. Can it be displayed like top does ...
3
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0answers
395 views

Is there a GUI for nethogs or similar network-monitoring app?

I have this terminal window opened with nethogs running to see what application is using the bandwidth but it would be so much nicer in the bar next to the clock or even in a GUI. Does anything like ...
2
votes
1answer
373 views

How to send SNMP trap which will have all the information about commands fired by each user?

So can anyone help me to configure below 3 points on client side where we have SNMP Service installed? Litle bit of background: We have one OpenNMS Monitoring server, which monitors all other ...
0
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1answer
245 views

Is there in ubuntu repository monitoring alternative to nagios?

I would like to run some kind of service monitoring for my server and few other servers/services. Basically I want to monitor availability and send mail, when avail. is bad. Is there any simple ...
2
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3answers
445 views

Recommendations for a network monitoring data counter?

Is there a graphical data counter for Ubuntu that records how much uploaded/downloaded data was used and bandwidth being used and total amounts, filtering it by application?
2
votes
1answer
142 views

Nagios Notification via Ubuntu notify-osd

I have been looking around for a nagios plugin that offers the ability to have alerts for my hosts and services that i monitor to come through to my ubuntu pc in the form of an onscreen notification. ...
1
vote
1answer
217 views

What does mean - in `netstat -tupn` output?

Here is the output of sudo netstat -tupn Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 5 192.168.1.100:55729 91.190.218.66:443 ESTABLISHED ...
1
vote
3answers
709 views

how to detect that specified machine is present in local network

how can i detect - using bash if possible - that specific (i.e. name or mac address) machine has appeared in local network? IP addresses are dynamically assigned, so I can't rely on "traditional" ...
2
votes
2answers
12k views

Start nagios web interface on a different port

I am trying to install nagios but I would like to start the web interface on a port other than 80. I cant seem to find much info on how to do that. Any help is appreciated. Thanks
0
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1answer
124 views

Tracking data sent to remote host over time?

What is a a good way to track over time the amount of data transferred from my ubuntu machine to another host on the internet?
1
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1answer
157 views

Connection Information is telling me what?

In particular the speed figure, the rest being quite obvious. For my wireless connection the speed value is up and down between 1 Mb/s and 54 Mb/s. I've always taken this to be a measure of how ...
3
votes
2answers
579 views

What tools are availble to check network performance for VoIP calls?

I need a software tool which can emulate network impairments/jitters in the network and test VoIP calls behavior and quality.
1
vote
3answers
15k views

How can I check disk usage using ssh?

We have an ssh server on Ubuntu and we want a disk usage report using ssh of whole network.Is there any utility, command, or script available to accomplish this?
5
votes
1answer
705 views

Internet Connectivity Indicator on Unity

How can I check whether my internet connection is active on Ubuntu. If I am connected to a wired or wi-fi network, the indicator applet shows that I'm connected. But there is now way to find out the ...
19
votes
7answers
41k views

I need a good network monitoring tool

I need to get some good network monitoring tools. I am trying to find out why my office network is so congested/slow, and I need something that will allow me to look at all the machines in the ...
0
votes
1answer
620 views

'vnstat' works, 'vnstat -l' doesn't

I have just installed vnstat. I run vnstat and get this: ~$ vnstat rx / tx / total / estimated wlan0: Aug '12 12.89 MiB / 14.14 MiB / 27.03 ...
1
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0answers
33 views

Bandwidth monitoring indicator? [duplicate]

Possible Duplicate: What Application Indicators are available? Is there an app for bandwidth monitoring indicator particularly that be placed on the top panel for Unity? Something similar ...
1
vote
2answers
16k views

NTOP web interface?

NTOP is a network monitor. It has a web interface for viewing statistics. I installed it via sudo apt-get install ntop on Ubuntu 2012.04, the daemon got started at the end of the install, without me ...
4
votes
3answers
20k views

How to install Intrusion Detection system in Ubuntu 12.04

Basically i m looking for some Intrusion Detection system.... so i find snort is one of them , soi i need step by step configuration to install snort & some snort web-based monitoring tool ...