Describes the use of a system that constantly monitors a computer network for slow or failing components and that notifies the network administrator (via email, SMS or other alarms) in case of outages.

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2
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2answers
240 views

What to use to get meaningful network statistics

A customer has a rack with some 1U servers and Dell™ PowerConnect™ 2716 switch at ISP's server room. One port is uplink to the ISP. Some servers run ESX5 while one 1U server is a plain Windows 2008 R2 ...
-1
votes
1answer
79 views

How can I get the total “INTERNET” usage (in MB) using Microsoft Netmonitor or any other tool

I tried with Microsoft Netmonitor, but I don't know which column has to be added to get the Total usage (in MB). I also want to know about what filter have to be applied to get only the INTERNET ...
3
votes
2answers
1k views

Monitor Internet bandwidth by IP in a LAN environment?

I am new to networking so pardon if this is a stupid question. I want to see how my users use the internet bandwidth. I have around 50 Users in the network and I am using a checkpoint edge series ...
0
votes
2answers
87 views

Alert when a file/directory upload has failed

I am using Ubuntu and needed to know if there is any way to produce an alert when a File copy/upload operation has failed. The scenario is as such: I have file xxxxx on my computer/server. However, ...
0
votes
1answer
55 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 Linux server to another host on the internet? https and imaps only
1
vote
1answer
736 views

Netflow to syslog converter

Is there any way to have netflow v9 converted to syslog? Which would be the best way to have the following idea working? Procedure: 1) The router sends UDP with the following structure: ...
0
votes
1answer
288 views

tell tcpdump to not include the port numbers in the output

how can tell tcpdump to not include the port numbers in the output? Right now it includes the resolved IP + resolved port. I just need the resolved IP address (hostnames)
1
vote
1answer
1k views

haproxy status reporting

I've just started using haproxy, so excuse me if I sound silly. haproxy itsekf is working fine and this is the config file that's in use: # This file managed by Puppet global chroot ...
0
votes
2answers
188 views

Is there any software to monitor bandwidth?

In our organization we have 3 servers that are located at the office and around 20 pc accessing the servers in the warehouse with distance between the pc and the server around 20 km (13 miles). Our ...
3
votes
1answer
112 views

How do I get the network usage of a server per-IP?

I'd like to know a tool to programmatically measure, in KB/s, the load that each IP applies to a server. So far, tcpdump does a good job at telling me the amount of packets sent per second, but I ...
1
vote
1answer
72 views

What are some simple ways to capture network failures/drops to requests sent to a sql server?

What are some simple ways to capture network failures/drops to requests sent to a sql server? SQL Server comes with a Profiler tool, but doesnt seem to log dropped requests, instead only successful ...
-2
votes
1answer
129 views

Solarwinds migration

I want to migrate my solarwinds to a new VM ware. Currently my solarwinds is installed in a Windows Desktop with the database stored locally in it. During migration to a VM ware, I want to point the ...
2
votes
4answers
304 views

an unknown ip on network

In our office we have many PCs, all of them have static IP addresses. We had a problem with one server with ip 192.168.1.10 dropping off the network occasionally. I unplugged the network cable from ...
0
votes
2answers
502 views

nmap scan only state of port

Is it possible with nmap to check only the state of a port whether- open, closed or filtered and NOT the services behind it? The aim is to speed up scan results. Since UDP scan is also involved it is ...
0
votes
1answer
398 views

How to have PRTG Server running beside Apache? [duplicate]

We used to work with a local Apache instance (WAMP) as a development environment, but we installed recently a PRTG server on the same machine, so it listens to the same port, as it is a web-based ...
0
votes
1answer
187 views

How to prevent particular program from using particular network connection under Windows?

In my company almost every user has 3G mobile connection and many of them travel a lot. To prevent expensive mobile charges I'm looking for a solution that would prevent particular program (Windows ...
0
votes
1answer
307 views

monitoring rx/tx stats of current connections on Linux

In a Linux netfilter router, connections table only includes information on end of connections. Where I reach real time rx/tx information for each connection? (In freebsd, session table already ...
1
vote
1answer
1k views

How to diagnose intermittent connectivity issues

At work we are suffering some intermittent faults with the internet. This manifests itself as none of our desktop computers being able to make any requests externally including to ip addresses for a ...
1
vote
1answer
253 views

Smokeping FTPtransfer probe

I'm trying to set up a SmokePing FTPtransfer graph but with no luck. I have the ping graphs all figured out but the FTP graph is just empty. Here is my Probes config: *** Probes *** + FPing binary ...
-1
votes
1answer
120 views

Vlan and Switch setting - dummy [closed]

I need to speak tomorrow the network engineer and I would like to understand his so apologise for the Dummy question: In the school we have a cab with a 24 port Netgear manageable switch with an ...
0
votes
1answer
125 views

Linux measure network bandwith

I have a one way connection between 2 computers (both Ubuntu). I am looking for an easy way to find the max bandwith. I need to find the max transfer rate between computer A and computer B without ...
2
votes
2answers
116 views

how to track which switches, routers are being affected by ddos

I have an enterprise network system which has a router facing the internet, beneath it a virtual chassis switch, below it an access layer switch and finally a server. My question is that when there is ...
1
vote
2answers
232 views

How to monitor how much data transfers between Exchange servers in DAG?

I recently installed a second Exchange Server (standard, 2010) to our organization as part of a Disaster Recovery solution. The two servers will soon be part of a DAG. Before placing the server at ...
-1
votes
1answer
510 views

What options do I have for monitoring internet usage by user and sites [closed]

I want to set up a linux server (ubuntu server 12.04) on my home network to monitor the internet usage and find out the users and websites that use the most bandwidth. I have looked at squid and it ...
0
votes
1answer
307 views

How to know why server traffic is used and what is using it? (windows os)

I have a VPS on which I have Windows Server 2008 R2 installed. My monthly traffic is near 100 Gigabytes per month, and I don't have heavy sites on it (no download center, no movies, just text and ...
-1
votes
2answers
480 views

Tool to analyze the real time traffic in Windows XP SP2 [closed]

My client machine/(s) is/(are) Windows XP SP2. I can’t effort every time to have physical access to my server machine. To analyze the real time traffic and bandwidth between client and server machine, ...
1
vote
1answer
287 views

What is the best way/tool to analyze raw data(network stats) from Simulation?

After running a simulation(using a simulator(QualNet)) of a simulated network I end up with ip stats stored in a database, I then extract the data to a csv file So now I have 750mb of raw network ...
2
votes
1answer
1k views

Windows server sending constant ARP requests to offline devices

We have a Windows 2003r2 server which is sending intermittent ARP requests to several devices which are no longer on the network. The result of this is disruption to a PLC which is running over ...
1
vote
2answers
889 views

Using runit and monit to run / monitor services

I am configuring some services to run on Ubuntu server. I was going through the link below where they use runit to run the services and monit to monitor the services - ...
4
votes
4answers
374 views

Creating an office network and monitoring all activity without a proxy

We are setting up our office network and would like to track all the websites visited by our employees. However, we would not like to use any proxy based solutions. Our work is highly dependent on ...
0
votes
1answer
121 views

Total Network Monitor plus Autotask

I apologize if this is not posted in the correct area. I'm currently using Total Network Monitor to keep a basic eye on my network. My company is also about to implement Autotask. Is there a way ...
4
votes
2answers
3k views

unexplainable packet drops with 5 ethernet NICs and low traffic on Ubuntu

I'm stuck on problem where my machine started to drops packets with no sign of ANY system load or high interrupt usage after an upgrade to Ubuntu 12.04. My server is a network monitoring sensor, ...
3
votes
1answer
297 views

How to find the reason for a weekly downtime on an Ubuntu web server hosted by AWS?

We started monitoring our web server using Pingdom and found out that we have a downtime of a few minutes every Sunday at 0:00 UTC. The test runs every minute and checks if a successful HTTP response ...
1
vote
1answer
159 views

Slow internet connection for no reason

We have a cable internet connection. I've called the company when this happens and they say there's been no downtime on the modem and the signal is strong and there's no fixing or outages in the area. ...
-6
votes
3answers
55 views

Does apache log client IPs [closed]

Does apache log client IPs per request by default? If not, what are some common ways to do this?
0
votes
1answer
1k views

3com Vlan setup

I am setting up a vlan on my 3com switch. The switch is a 4200g 48 port. I have set up 3 vlans i have the generic vlan1 and I have created 2 other vlans 2 and 3. I have manually give them their ip ...
0
votes
2answers
189 views

VLAN Testing 3com switch

Hi there I am currently setting up a couple of vlan in work. Hoping that this is going to help with network traffic. The one question that I have is how do I test the vlan when I have finished to ...
2
votes
1answer
232 views

How to Monitor and Log Port Usage and Destination Attempts of a local computer from a Linux Gateway?

I have access to a linux server that is acting as the gateway to an internal network. There is a MagicJack Plus device plugged into this network via CAT5. The MagicJack gets its ip via DHCP from the ...
5
votes
2answers
222 views

Aggregating NICs for receive only connections on Linux

I am setting up a network monitoring system on RedHat 6 that will be receiving the packet feed from an inline tap. One of the functions of this device will be running Snort. Putting two NICs in the ...
0
votes
1answer
54 views

gather information about packet from malicious ip

I have a glassfish server running some webservice and I noticed that there is an abnormal traffic from japan (150.70.x.x) in my iptables log file and I dont have any user in this country . Until now ...
1
vote
1answer
175 views

Analyzing a periodic network spike

One of my servers has a semi-predictable network input spike at 6:45 every day. It comes as early as 6:30 and as late as 6:50, but always lasts for less than 1 minute. I'm trying to figure out how to ...
-4
votes
1answer
107 views

Can network admin see what's goining on inside XP Mode on Windows 7? [closed]

I have Windows 7, and installed XP Mode in order to run certain work programs that won't run in Windows 7. Although both Windows 7 and XP Mode share the same physical connections, they have different ...
5
votes
1answer
3k views

Full status information in Nagios email notification?

I have set up Nagios to monitor my servers and I have written a few custion checks. When I get a notification email, I only get the first line of the status information and I have to use the web ...
0
votes
3answers
176 views

Monitoring networks and switches [closed]

I'm new to this area when it comes to monitoring services and hardware devices. Is there anything specific I need to know? 1) Are some hardware devices more compatible then others? Like, will some ...
-1
votes
3answers
5k views

tcp handshake failed.client send rst (after syn-ack). can any one advice?

topology: 2 linux computer connected directly . no iptables rules (except - iptables -A OUTPUT -p tcp -j NFQUEUE ) no firewall. route is defined as - "route add default dev eth0" on the second one ...
0
votes
3answers
1k views

Debian Squeeze - Monitor outgoing traffic

I have a small webserver that running on Lighttpd 1.4 which steadily uses 250GB or less bandwidth for the past couple of months. But since May the traffic spikeed to more than triple of what it was. ...
0
votes
1answer
606 views

How can I log web service requests between my IIS web application and a 3rd party web service?

My web application (running in local IIS) makes a web service call to a 3rd party service. I'm trying to see the request to verify that it is formatted correctly. I'm trying to do this with Fiddler, ...
0
votes
1answer
166 views

Bandwith/requests monitor on IIS 7/win server 2008r2

Recently i noticed that my VPS bandwith jumped from 20-30 GB per month to 150-400 GB per month in the last few months and i want to know which sites on the server are generating the most bandwith and ...
2
votes
1answer
2k views

Disk Monitoring with OpenNMS

I'm sure this has been asked before (and actually all over the net) but I'm scratching my head a little over this. OpenNMS is installed on my 2008R2 server and is picking up my nodes fine (detecting ...
3
votes
1answer
2k views

How to monitor a UDP multicast stream on a cisco network, hopefully with SNMP

We have a LAN with 2x Cisco 4500's as gateways running HSRP. We're using Exterity HD IP Encoders to take HD video and put it onto the network as a multicast UDP stream (playable in VLC). I have a ...