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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1answer
308 views

real time network usage statistics monitoring/capture

I would appreciate any advice from experience from the community regarding the following challenge I've given myself - i.e. any pointers re best approach / direction here? Requirements Allow ...
2
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6answers
2k views

Detect computer which does port scanning

I have about 15 computers on a local network behind simple TP-LINK TL-WR340G router. Everything works fine and the router does its job. Recently we were informed that port scanning is being performed ...
0
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1answer
357 views

Monitorix Graphs Show Boxes Where Text Should Be

I have just installed Monitorix on ArchLinux using the tutorial here: wiki.archlinux.org/index.php/Monitorix I am using the Lighttpd web server. It is working fine and the graphs are being ...
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5answers
895 views

network timeout how to analyse problem

In the last three month I was experiencing that my internet connection started to get very slow and websites had long time to load. The first thing I made was an ping to www.google.com which showed ...
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3answers
180 views

what is my network doing?

I'm trying to determine what sort of data is coming or going from my domain. The activity light on my modem and firewall are flashing like crazy regardless of the number of actual computers connected. ...
6
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1answer
179 views

What service/network monitoring tools set thresholds dynamically?

The place I work for is interested in purchasing a product that, among other things, doesn't set hard thresholds for application alerts. Rather, it detects peaks and slopes, etc., and kind of ...
2
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5answers
2k views

Juniper NetScreen NS-5GT traffic monitoring

I've done casual research into the subject and am truly dismayed at the lack of compatible tools for such a simple task. Maybe someone can provide assistance. We have a NetScreen NS-5GT in the ...
0
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1answer
130 views

How to see if data is encrypted

Is there an easy way to tell if I am successfully encrypting transfers between me and my database? Can I look at the network monitor or something that will tell me? NOTE: I am new to any sort of ...
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5answers
269 views

Identical traffic

I am running an application server and logging all requests for analysis purposes later. One interesting trend I noticed last night was, I had a visitor from Texas on FIOS share identical traffic ...
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1answer
176 views

Approach for monitoring internet backbone traffic volume

I'm interested in getting a picture of relative volume across different internet backbones. In particular, I'd like to see how traffic volume over a given route differs over the course of a day or ...
4
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1answer
153 views

Best software for taking a “System Information Snapshot”?

I am curious what people would recommend as the best software for taking a system information snapshot? This would be for use in a technical support fashion.
2
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2answers
334 views

What kind of proxy acl rules should be applied?

I try to block sites in squid based on this article. Assuming you would want to block access to Yahoo (e.g http://www.yahoo.co.jp, http://www.yahoo.com, http://www.yahoo.co.in), you would ideally want ...
2
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1answer
214 views

How to customize the re-direct page when a user tries to access a blocked site

How to customize the html page which is re-directed when a user tries to access a URL which has been blacklisted by squid proxy server. acl blocksites url_regex "/etc/squid/squid-block.acl" ...
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2answers
532 views

How to prevent file uploads to the Internet from within the LAN

We use a Squid proxy server for outbound requests to the Internet. We would like to prevent any kind of file uploads to a website in the Internet (for example, RapidShare ...). How do we achieve this? ...
4
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1answer
1k views

How can I monitor VNC via Nagios?

I have a number of remote sites which have VNC running on a few computers for support purposes. They are (obviously) only available on our internal network. I am using Nagios to keep track of all ...
1
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1answer
385 views

Network Monitoring Tool Recommendation [duplicate]

Possible Duplicate: Network Traffic Monitoring Hello, My company is looking for a monitoring app/tool that would allow us to capture and graph statistics on network performance. As a ...
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1answer
644 views

SNMP counter issues with cisco RV082

Does anyone else poll this router with SNMP? We are using firmware version: 2.0.0.19-tz We are having problems with the traffic counters, some of them appear to be implemented as 16 bit counter ...
8
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5answers
832 views

What can SNMP be useful for in a small network?

I have been administering servers and clients in small business offices, and have never used SNMP. But I have read about it and it looks interesting. As what I understand, it is mostly useful if you ...
0
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5answers
826 views

Which network management system (NMS) to choose?

I need to integrate NMS in large enterprise system for data collection purposes. Primary requirements: collection by SNMP great scalability (up to 1,000 devices with 1,000 interfaces each) failover ...
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5answers
1k views

Is there a small business router that shows bandwidth usage graphs in the admin panel?

I support a large number of public libraries that are having their networks upgraded in response to a grant application. These libraries are generally home to between 6-15 computers and have little ...
3
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4answers
483 views

PHP Network Monitoring

Is there a way that I can monitor the traffic, Upload/Download (separately) using PHP? I`d like to echo out something like that: Upload: 523 GB | Download: 25 GB This should be based on the System ...
2
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3answers
631 views

Getting an alert when my oracle database goes up or down

How can I get an e-mail alert when my oracle database comes up or down? I have a database that I need to know when it goes down (it would be nice to know if it has come back up), preferably from a ...
0
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2answers
187 views

How To Perform Distributed Website Monitoring?

I would like to know how sites like the following perform distributed website monitoring (from multiple checkpoints/countries). pingdom.com, site24x7.com, uptrends.com, siteuptime.com, etc, etc. To ...
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3answers
199 views

Simple switch ports state monitoring tool

My users keep unplugging our meeting rooms computers network connection. As i can't check the computers every time a meeting ends, i'd like to find a tool, preferably running on windows, that can ...
3
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6answers
2k views

Determine who is opening a .PST file from a network drive on the local network?

Our system admin has been struggling with the issue of our network getting completely locked up when users open PST files from network drives. Apparently Microsoft is aware of this problem but there ...
5
votes
3answers
13k views

Open Source / free choices for SFlow monitoring?

I found the list here: http://www.sflow.org/products/collectors.php But was wondering if there are open source projects like Zenoss or others that can do SFlow collection and reporting for more than ...
2
votes
1answer
2k views

How to combine RRD files to an overview graph? (rrdtool, collectd)

I have collect runnings which puts performancedate like cpu usage oder network bandwith into rrd files. My problem is, that i have a single file for each node in the cluster. How can I get an ...
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3answers
101 views

Error reporting whilst away from desk

Just purchased some VPS hosting and am getting setup to get my startup app underway. For the moment I'm playing sysadmin and am running into errors galore whilst trying to work out the kinks. So I ...
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2answers
771 views

What are Discrete Alarms/Contact Closures/digital inputs? [closed]

I am doing research for a masters class and I was asked to research monitor and alarm systems. I have been looking all over the web for these subjects but it seems its something relatively new or ...
1
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1answer
683 views

ngrep - possible to hide payloads?

I use ngrep a lot to inspect HTTP headers to see what's going on. I use the -q flag for quiet output, but I really don't want to see the payloads, only the headers. Is there a way to do this? My ...
2
votes
1answer
114 views

What free and efficient web/trafic filtering options are good for this situation?

The Story (you can skip this if you like) So my girlfriend got a job as pedagog at a small boarding home (around 40 kids, age 10 to 18), 3 weeks ago. I went there once and surfed the web from a ...
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1answer
106 views

PolyCenter Netview & Console Manager

I'm looking to replace Polycenter Newview and Polycenter Console Manager with supported products. I'm starting with this list. Do you have any recommendations, either from that list or elsewhere?
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2answers
2k views

How To Monitor Home Wireless Network Connected Devices Bandwith [closed]

(Originally posted on SuperUser, not sure if it might be better suited here) I have in my home a standard Comcast cable internet connection. I have it going from the wall to a cable modem, and from ...
1
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1answer
1k views

Juniper router SNMP montioring

I've been asked to write a script that checks the status of all interfaces on a Juniper router using SNMP. I know how to use SNMP walk and have written a test perl script to retrieve the hostname. ...
2
votes
2answers
981 views

What are some decent competitors to ntop?

I've been trying to use ntop at my organization for a while and have had nothing but problems with it. The system I run it on is a fairly vanilla Redhat 5 system (Sun X4140) and ntop seems to run for ...
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2answers
274 views

Network monitor program

Is there network monitor program for windows servers can keep tracking throughput, pkt transmitted/received/discard/re-transmitted BY TIME? I am trying to find the reason causing my server network ...
0
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4answers
298 views

System Uptime Monitors

I am looking for reviews and suggestions a an online service such as http://www.alertmefirst.com/ I need a service or system that can monitor the following and provide me daily emails and monthly ...
0
votes
4answers
995 views

What is a good Network/Windows Server monitoring solution (Ideally web based)?

I'm looking for something that is similar to Nagios for network and server monitoring, however, I do not have direct Public IP connection, or domain connection to the sites that require monitoring. ...
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2answers
89 views

multi-source monitoring companies

I've mentioned before on here that I'm using Pingdom, and am quite happy with it. For the price it's awesome. One of the features that took us to them is that they have monitoring sites all over the ...
2
votes
3answers
2k views

SNMP Bandwidth Monitoring - Billion Router

I have several sites around the country, all sites are using the Billiion BiPAC 7402GX router. I need to setup bandwidth monitoring tools to allow me to see the sites visitied, amount of bandwith up ...
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2answers
799 views

Route local machine traffic to gateway

I have two applications a client and a server running on my local machine and want to monitor their network traffic through NetMon. One solution is to route the local traffic through the default ...
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4answers
181 views

Linux: Measuring network consumption per remote host

Is there a way to measure the network consumption to a specific IP port. I am running 2-3 process with multiple threads which connect to a remote server and I need to know the exact used network ...
0
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1answer
50 views

Consolidation of network scanning results into database

Need to scan local network time to time to monitor possible changes in MAC-IP-username combination. Normally do it in several stages using nmap, pstools and other suitable tools, but am looking for ...
2
votes
3answers
3k views

Determine What Process is Generating Network Traffic (Windows Server 2003)

I've got a print server in our Windows 2003 domain with a lot of print queues on it. We are seeing a significant amount of SNMP scans coming from this server which we think are unnecessary. ...
0
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2answers
941 views

Monitor status of VPN clients

Is there any better solution than ping -t for monitor status of some VPN clients. I have set up FreeBSD router with fix public IP address for accepting incoming PPTP VPN connections. The callers are ...
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2answers
3k views

how to monitor web app availability with splunk?

I've recently downloaded and installed a Splunk 4.0.4 Server Enterprise trial (running on Windows Server 2008 if that matters), and now I want to set it up to monitor a few web pages in addition to ...
0
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1answer
488 views

What is the pertinence of Packet Delay Variation (Jitter) for network administration?

There are several means and ways to calculate the Packet Delay Variation (PDV or jitter), there's a RFC, and several definitions in various tools around these notions. Also, several delays can be ...
0
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4answers
577 views

Simple bandwidth monitor

I have a CentOS machine that is being used as a PBX. One interface is going out to the local network and the other interface is currently (pending equipment arrival) plugged directly into a Metro ...
1
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1answer
507 views

Implementing Argus (similar to netflow) what kind of information should I be gathering?

I am setting up a trial of Argus at my company as a diagnostic tool. We have a collector box attached to a monitoring port on our switch, and the initial plan is to redirect ports with unusual traffic ...
0
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2answers
4k views

How do I monitor Apache AJP connections?

I need to monitor the number of existing connections made by Apache to the different instances of JBoss in my *NIX server. How do I do that? If that tool or method gives me more info that would be ...