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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3
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4answers
864 views

Hardware requirements to monitor a larger (3000 device) network

I'm currently evaluating monitoring software for (by my standards) a larger network expected to grow to around 3000 devices. I'm finding data on the hardware requirements for scaling hard to come by. ...
0
votes
1answer
127 views

Suggestions for projects related to network monitoring, documentation, collaboration [closed]

I am looking for any projects integrating functions like monitoring, management and documentation of network/servers/services. Currently using Orion and Nagios for tasks on monitoring and alerts, ...
1
vote
1answer
152 views

Simple remote administration agent software [closed]

I am looking for a simple remote control, agent based software to perform simple commands to geographically dispersed workstations. I am looking for something similar to Microsoft Intune. I am open ...
1
vote
0answers
107 views

How to monitor bandwidth on host which uses bridge-util and virtualization

I am running a debian squeeze box with bridge-util and LXC containers. I guess this is a 2 part request. I would like to know what my total bandwidth usage is I would like to see it broken down by ...
1
vote
4answers
8k views

Graphical Ping utility with logging

I need to continuously test the quality of the connection between hosts, and I would like to use ping for that, in order to see WHEN the problem occurs. It should provide LOG of the pinging, with ...
0
votes
2answers
863 views

Why so many ARP requests on the network with Windows 7 (using Network Monitor)?

I've read that it's fairly normal to have several ARP requests per second on the network, but was curious if someone could elaborate on the "why" I would have so many versus not? Over the course of 4 ...
0
votes
2answers
459 views

fedora default traffic monitor tool

On a fedora server i have access using a ssh connection. As a regular user, how can I see what traffic is involved into the server? I don't have root rights, and I'll like to learn from the default ...
11
votes
4answers
1k views

How do I deal with the removal/eradication of an unknown worm on our network?

TL;DR I'm pretty sure our small network has been infected by some sort of worm/virus. It seems to only be afflicting our Windows XP machines, however. Windows 7 machines and Linux (well, yea) ...
0
votes
1answer
372 views

Is there a pingdom-like service that has hosts in Asia and South America [closed]

I am looking for a remote monitoring service, similar to pingdom, that has more global reach. Right now pingdom only has coverage for North America and Europe. Does anyone know of a competing service ...
1
vote
3answers
437 views

Linux: grep-able monitoring of network traffic and number of connections

I need to collect certain monitoring data every minute and send it to a monitoring server. The source of that data must be parseable using standard Linux tools. For example, to monitor number of ...
9
votes
3answers
2k views

Check incoming network traffic in real time?

Is there a way I can monitor incoming network traffic in real time on my server? Preferably in terms of *bps Running Ubuntu
2
votes
1answer
1k views

Easiest way to install Packetfence or similar onto my network

We have a simple small business windows network with very basic internal security. We are a small college and want to provide access to the internet to your student body, but not to the internal ...
1
vote
1answer
745 views

Alternative to Ntop on FreeBSD

ntop is a great tool for recording network throughput statistics for FreeBSD based firewalls. The statistics can be displayed as graphs using a web browser. Ntop, however, has the limitation that it ...
0
votes
1answer
636 views

Tools to monitor bandwith (outgoing) on my ArchARM NAS/Server?

I have been having some problems with my router last few days, and in the process of narrowing down the problem, I found that while I wasn't using my home network explicitly I was having upto 1GB of ...
0
votes
1answer
878 views

ICMP Data Field Modified - What does it Mean?

Normal ICMP Data fields are composed of a pretty standard 32 byte string of alphabet characters. abcdefghijklmnopqrstuvwabcdefghi I have captured a series of ICMP echo requests using WireShark with ...
0
votes
1answer
949 views

Monitoring a tcp port using Zenoss

it's possible to monitor a general purpose service, listening on port 5896, i.e.: tcp://production.enterprise.com:5896 I just want know if this service is alive or offline, like a fast "nc -zv ...
0
votes
3answers
364 views

Strange network traffic on my dedicated server. How to find out what is causing it

I noticed a trange outgoing traffic in my dedicated server. I'd like to know how could I find out what is the reason to this. One day traffic One week traffic As you can see, there are bursts of ...
0
votes
3answers
328 views

Nagios and other network monitoring software [duplicate]

Possible Duplicate: What tool do you use to monitor your servers? I used the Nagios as a network monitoring software to check server's services status about 4-5 years ago. Now i need to ...
3
votes
2answers
298 views

Real benefits of tcp TIME-WAIT and implications in production environment

SOME THEORY I've been doing some reading on tcp TIME-WAIT (here and there) and what I read is that it's a value set to 2 x MSL (maximum segment life) which keeps a connection in the "connection ...
5
votes
2answers
975 views

detect weak encryption and outdated protocols

I'm looking for software that helps detecting applications that use weak encryption or outdated protocols in a central place. Sorry if that sounds vague. Maybe an example will help. Let's take a ...
7
votes
5answers
699 views

Software to diagnose (ping) a network over 24h?

We've been experiencing a lot of problems with our current office's internet connection lately: slowdowns, packet losses, huge ping times, etc. (Un)fortunately, this is not happening all the day, ...
0
votes
2answers
1k views

How to diagnose severe network problems in small network?

We have fairly small network with managed and unmanaged switches (Netgear GS748T, Linksys SLM2024, DGS-1008D, DES-1008D, DES-1026G, SRW224G4), about 8-10 hosts Hyper-V with multiple virtual machines, ...
2
votes
3answers
3k views

Nagios plug-in check_snmp receives NO SNMP data from a CISCO Router

I have tried setting up Nagios on Ubuntu 10.10, successfully installed and can login to web interface, I am however stuck on configuring snmp or I am doing something wrong here, i have followed ...
4
votes
1answer
1k views

Monitoring OSPF links with SNMP

I am looking for a way to monitor OSPF links using SNMP. I have attempted to try to poll the Neighbor State of a specific peer, looking for a value of Full, and going into alarm once the value is no ...
4
votes
2answers
807 views

Hiding hosts in Nagios

I would like to monitor a few hundred hosts using Nagios, yet I only want the switch fabric to show up in the statusmap.cgi. Is there a way to prevent a host from showing up in the status map, yet ...
1
vote
3answers
1k views

CentOS monitoring traffic on port

I am looking for a tool to monitor traffic on some ports of a CentOS server. On this server each service runs on a port from 3000 to 3050 and I would like to compare traffic consumption on these ...
1
vote
2answers
841 views

IBM x3500 Server managament/monitoring tool

I took over monitoring an older IBM x3500 7977 server and i don't have much knowledge of IBM servers. I'm looking for the equivalent of Dell Server Administrator from IBM, just to monitor and alert on ...
1
vote
5answers
221 views

Finding malicious network usage in a LAN

I manage a small LAN (30 computers, mix of Linux, Windows, and Macs). Transferring a 100MB file to a local server (i.e. in the office, not on the Internet) used to take me about a couple minutes, but ...
1
vote
1answer
480 views

How To Setup “Performance Monitor” As A Bandwidth Counter?

I have managed to create a Counter for bytes/second on Windows 2008 R2. How can I actually count the bandwidth for my machine (inbound and outbound)? I am after the effects similar to DU meter. I ...
0
votes
1answer
382 views

estimating network capacity on AWS/EC2

I have a rapidly growing (10Ms calls/day) web service currently on one EC2 app instance running ubuntu10.04+ apache + APC + memcache (+ several master/slaves mysql farms on other instances). I ...
0
votes
2answers
549 views

Monitoring Tool for monitoring the health/uptime of my servers in the cluster (windows)

Are there any recommendation on free monitoring tool for windows? We don't need sophisticated tools. We just need to monitor the "health/status" and uptime of our database, load balancer and server. ...
3
votes
2answers
167 views

Finding the executable sending packets to a specific IP Address?

We host Game Servers off of Windows Server 2008 machines, and we just received a report that one of our customers is using their server to do some type of UDP attack. The person being attacked ...
3
votes
3answers
3k views

Advanced traceroute tool for Linux

Is there comparable alternative for PingPlotter Pro on Linux? I'm looking for traceroute tool that has ability to display traceroute data of each nodes along the route in nice timeline graph.
1
vote
3answers
587 views

Unix software to continuously monitor packet loss

I'm looking for some software to monitor packet loss or packet retries. Preferably something that continuously monitors vs. a testing approach and preferably free. My server's OS is debian. I'm ...
0
votes
2answers
2k views

Ntop alternative that stores persistent data

I'm looking for a tool to passively listen on a mirroring port in order to collect statistical data about network bandwidth usage, protocols, hosts, etc. Ntop is great. But once restarted it (almost) ...
1
vote
3answers
290 views

Best graphing tool to monitor mem/cpu/traf? [closed]

I am using Rackspace Cloud, oddly they don't have any way to measure your resource utilization considering it is a cloud service so I must find the best way to measure this so I can see when I should ...
22
votes
5answers
20k views

How passively monitor for tcp packet loss? (Linux)

How can I passively monitor the packet loss on TCP connections to/from my machine? Basically, I'd like a tool that sits in the background and watches TCP ack/nak/re-transmits to generate a report on ...
0
votes
2answers
384 views

can an ISP keep track of websites/links a customer visit/download? [closed]

I know in a home network, there are softwares that can monitor the TCP conversation occurred in the network and are capable of recording the download links sent from a computer. But my question is ...
11
votes
5answers
5k views

On Linux, how can I tell which process is sending Ethernet packets?

I'm running gkrellm which shows that some process on my Debian Linux system is writing approx 500KB/s to eth0. I'd like to find out which process it is. I know a little bit about netstat, but it ...
1
vote
0answers
308 views

Can nTop process sFlow data to reveal source and destination to be reviewed visually?

I tried rephrasing the question title about five times before arriving on this title. Does nTop have the "built-in facilities" to process sFlow data so that a graph of source and destination of ...
1
vote
1answer
134 views

Detecting a host doing a port sweep across multiple interfaces/networks

I'm trying to set up a honey-pot like machine that would detect port sweeps from multiple networks with multiple interfaces. As an illustration, if I could set up a box with eth1, eth2 and eth3. ...
0
votes
4answers
129 views

Keeping Track of LAN IPs without Access to Router

I'm creating an application that needs to track slave machines on the local network. I came across this post: Set up to resolve local ips However, if the local ip assigned to the various hosts ...
1
vote
1answer
313 views

virtio /proc/net/dev

we are doing some VM (citrix-xen) / real machine benchmarks at university and ran accross a strange behavior. we used netperf's stream test to meassure the performance between the two machines. both ...
3
votes
2answers
169 views

Network monitoring per user

We dont have to many restrictions on the net in our domain right now. Normally its fine (we use fiber. 20 down and 35 up) with 40 users this isnt normally a big deal. Every now and again the ...
10
votes
7answers
20k views

View installed programs on remote machine?

I was wondering if there is an easy and lightweight method to viewing what programs are installed on a remote machine? I am tempted to use Spiceworks but I would like something more lightweight like ...
3
votes
2answers
288 views

request.status 12031

We develop a web application for internal use at our client sites, and it relies heavily on ajax requests. We have 20+ clients nationwide, many of whom are on the same version, and most with a high ...
1
vote
5answers
2k views

Monitor traffic by source/destination IP address

I need to monitor traffic coming in and out of my server. Knowing the total in/out bandwidth is good, but ideally I would like to know how much traffic was sent to what address (we are talking about ...
2
votes
2answers
124 views

finding a spamming computer on the network [duplicate]

Possible Duplicate: How do you detect a spambot on your network? Our network of 120 windows machines has 1 or more computers sending spam. Is there an easy way to find that machine, without ...
1
vote
5answers
124 views

Custom server monitoring: Monitoring number of specific files in specific directory

I have many server running on live. Each server has many application. Each application has directory like /etc/somedir1, /etc/somedir2 where in each of that directory has many .html files. The ...
2
votes
1answer
7k views

HP Procurve 5406ZL - How to enable port-mirroring?

This is my first time asking a question here but I've been lurking around Serverfault and Superuser for a bit. I've tried searching for this but I have yet to find something that would be able to help ...