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.

learn more… | top users | synonyms

-7
votes
0answers
24 views

Server and Network Monitoring with stylish UI [on hold]

I know monitoring solutions like Zabbix, Nagios, PRTG, Munin and so on. They all do a great job in monitoring services and devices but I think their frontend is just ugly. I wonder whether there are ...
0
votes
1answer
21 views

Measuring HTTP traffic basic on URIs and custom headers

I'm currently working on an API service and one of the requirements is that we measure the amount of data used by each user of the system, and track how many times they use the API. So bandwidth usage ...
0
votes
0answers
25 views

Downloads of large files fail without an error

We run professional websites on IIS 6 and have complaints of (and have verified) that downloads (via HTTP) from remote locations (e.g. Australia) are incomplete or truncated. This means the download ...
1
vote
3answers
56 views

network usage per user in linux [duplicate]

I am administrator of an openSUSE linux server which is used by many people in our company. Today we find out that yesterday one of the users use too much of bandwidth and its important for management ...
0
votes
2answers
18 views

OpenNMS installation failure

I am willing to use OpenNMS to monitor my network. Monitoring it fully from the router to the nodes from a computer will be connecting the network as node not as administrator and that computer using ...
1
vote
1answer
29 views

Resetting to factory default on a Gigamon GigaVUE-212

I purchased the above-mentioned GigaVUE-212 for my test lab from eBay, to determine if I want to use them in production. However, the thing doesn't respond to the default passwords, and I can't ...
-1
votes
1answer
35 views

how to log bandwidth usage on windows 8 [closed]

My Father has a Verizon jet pack (hotspot card). He is seeing 100+ MB spikes on the Verizon data usage report a few times a day. On July 4th the verizon data usage report online shows 6 GB were ...
-3
votes
1answer
50 views

Keeping your server safe [closed]

I have a typical vps server with some custom sites on it running on port 80, a mail server, I don't have a DNS server and it is a default ubuntu 12.04. I don't have any admin panel, I am doing all the ...
-4
votes
1answer
44 views

service to check if exchange is sending receiving email? [closed]

I need of a web service that check if my exchange is sending receiving email properly. And if there are some problem it sends a sms to my cellular. I don't want an app because I have not a smartphone. ...
1
vote
1answer
59 views

Email administrator when a duplicate IP is found on the network

It was suggested that I ask this question on serverfault. I know this is a bit of a custom requirement but I was hoping someone currently has (or can put together) a script that checks for duplicate ...
1
vote
0answers
29 views

NagiosXI- Configuration verification failed

I am using check_ping command to check connection statistics of remote host. When I run the above command on command line, it gives me proper output, shown below: Syntax: ...
-1
votes
1answer
101 views

Nagios Alerts / Notifications - SMS

Configured Nagios core 4.0 and NDOutil 2.0 both are working in ubuntu. Now i am looking for alert types in Nagios. And i am confused in plug-ins and Add-ons in nagios. Especially i am looking in ...
1
vote
0answers
29 views

configure frag3 in SNORT

i m trying to test IDS systems on evasion. I have picked up Snort IDS. I have crafted few fragmented packet scenario, and i m sending those fragmented packet to destination address. All these crafted ...
0
votes
1answer
42 views

Reading .pcap files by CISCO ASA5515-X

I have .pcap file that already includes thousands of packets. I want to analyze these packets via CISCO ASA5515-X to observe how much of them are possible to be an attack packet (malicious). However, ...
0
votes
1answer
45 views

Bind Requested DNS Server IP Log

I have a DNS Server which runs on a virtual linux box with several IPs. Bind provides some pretty detailed debug logs, however, one piece of information that doesn't seem to be logged is the requested ...
0
votes
2answers
466 views

How Fortigate 100D send log to Splunk

I have a Fortigate 100D with FortiOS 5.06 , this is my setting config log syslogd setting set status enable set server “192.168.7.4″ set reliable disable set port 515 set csv disable set facility ...
0
votes
0answers
117 views

Exporting SNMP OID values from wireshark capture?

I am trying to figure out how I can export the SNMP OID values that wireshark picked up. My issue is that when I export the raw data it is all together and not seperated. All I want to to is get only ...
-2
votes
1answer
96 views

How can i send daily alerts for linux server monitoring using Monit tool(free edition)? [closed]

Hi i am using monit free edition tool to monitor server status, but in that the alerts works only when some triggering action done. But i want to send a daily alert of all the details of server as ...
0
votes
0answers
41 views

Hadoop - On the Wire Performance Monitoring?

I have been tasked with implementing an 'on the wire' monitoring solution for a large Hadoop installation. The source of data will be a combination of taps and SPANs throughout the environment. My ...
0
votes
2answers
97 views

How to troubleshoot network from customers perspective?

We have a web application that we host that is customized for multiple customers. Each customer accesses their version of the site via their own custom subdomain. We are running into an issue where ...
-1
votes
1answer
58 views

How to measure network service quality? [closed]

How can I say if my network as a quality service? According to wikipedia (http://en.wikipedia.org/wiki/Quality_of_service ), an example on how to measure the service quality is high bit rate, low ...
0
votes
2answers
39 views

Suspect UDP traffic on lo interface

I'm monitoring the lo interface with iptraf and am getting a lot of movement in the following form: UDP (268 bytes) from 127.0.0.1:49254 to 127.0.0.1:49254 on lo This message appears on average ...
-1
votes
1answer
120 views

Using a single APC UPS via network switch to gracefully shutdown many servers

Here is my situation. I have 10 Dell servers in my rack with 8 1500VA battery backups. I would like to take 1 of those battery backups and connect it to my network switch and use a software solution ...
-1
votes
2answers
146 views

Simplest way to monitor and log the internet traffic of a ubuntu server [closed]

I'd like to know if there is a simple program for ubuntu server (preferably 12.04), without too much configuration, which will allow me to check what processes are using internet bandwidth, how much ...
1
vote
1answer
721 views

Can Observium analyze network traffic?

I'm running a observium server analyzing my office devices, but I'd like to know if there's a way for observium to analyze the network traffic. English is not my main language, so I don't know how to ...
-4
votes
1answer
43 views

Is there a way to display my router's bandwidth usage graph on a web page? [closed]

My router has bandwidth graphs that update once per second. I am building a status screen (as a web page) to be displayed on a TV in our tech department, and I'd like to embed the graph so we can ...
-2
votes
1answer
174 views

Layer 2 and 3 Network and Topology discovery of blackbox network [closed]

I have been given a company network to perform layer 2 and layer 3 network discovery. I have to find out the network topology and infomation about network equipments including switch, router, server, ...
6
votes
5answers
729 views

Nagios server best practices?

I run a medium-sized Nagios server. It monitors roughly 40 servers with 180 services currently and is only growing by the day. I migrated from an old Nagios setup that was configured in a very ...
-6
votes
1answer
135 views

How to monitor all network traffic [closed]

I have installled wireshark on my server but can only monitor traffic through the local nic but all network traffic does not go through the server. I would like to monitor all network traffic. Are ...
2
votes
1answer
339 views

Detailed statistics using Ubiquiti UniFi hardware

I'm using UniFi manager to manage 10+ sites with 3-5 hotspots per site, and I look for more detailed statistics that the one offered by UniFi manager, such as: following an user through different ...
0
votes
1answer
283 views

Nagios mysql check service definition configuration?

I'm using the Consol Labs MySQL Health Check plugin to monitor my MySQL database. I'd like to change the warning and critical thresholds for the threads connected parameter, but have forgotten how. ...
2
votes
1answer
234 views

Monitoring IPv4 vs IPv6 Traffic

We have a fully functional dual-stack network running in our business. Has anyone found a simple tool for monitoring IPv4 vs IPv6 traffic ratios on a given host? When I say "simple" I'm thinking a ...
0
votes
0answers
105 views

Zabbix aggregate checks shows wrong statistics

Please, help with a Zabbix problem. I configured aggregate check, which should calculate the group load on outgoing eth0 for the whole group "Linux Servers" I have in Zabbix. Here is a screenshot of ...
0
votes
0answers
155 views

Tcpdump stops capturing wifi data while running in the background

I have a problem capturing wifi data using tcpdump while running in the background. OK, lets get some facts: my wifi-device is named wlan0 wlan0 is in monitor mode (that's what I want) I'm using ...
0
votes
3answers
144 views

Monitor HTTP usage on network from Linux free [closed]

I manage a small office network. I am looking to start monitoring/logging internet usage (website requests) for each user on a small network. All the windows clients are running through a switch to a ...
0
votes
1answer
54 views

Only one server behind a switch cannot access the internet and vice versa

I have multiple servers deployed behind a single switch. All the servers have their own public IP addresses. Suddenly one of them (say A) cannot be accessed from the outside by any means, e.g. HTTP, ...
-2
votes
2answers
88 views

Collecting Web traffic and monitoring reports [closed]

My company is a med home health company and I have been tasked with seeing what people are doing on the internet. There's been a lot of people complaining of people shopping, surfing internet, etc on ...
-1
votes
3answers
745 views

Script to log internet connectivity outage [closed]

What is the best approach to setting up a script to monitor and report a server's connection to the Internet? I'm not referring to connection to the local network, but rather a server's (or the whole ...
-3
votes
1answer
28 views

Grabbing sniffed packet data

So I have a Fiddler2 capture. In the capture, there was a file that was downloaded, file.dat. I am trying to extract the downloaded file from the capture. I can't seem to find any way to do that. Any ...
0
votes
1answer
103 views

Resource requirements for cloud OpenVPN server [duplicate]

I am building a proxy server for a client of mine. My platform of choice is Amazon EC2 with Arch Linux and Squid running. For the encryption part I have chosen OpenVPN for simplicity and large ...
0
votes
1answer
148 views

network gateway can't see traffic for monitoring

I've just setup a new CentOS 6.4 machine to act as a default gateway for the LAN at head office. It's primary task is simply to route traffic to the appropriate place, ie VPN servers or the firewall ...
1
vote
3answers
140 views

How can I find which program is making a specific network request?

I have 2 Windows Server 2003 boxes that sit idle, for the most part, on weekends. Yet when I look at my router's DNS logs, both machine's are making many requests for www.yahoo.com when there's nobody ...
0
votes
1answer
187 views

add a cgroup controller into libvirt

libvirt by default has cgroup controllers of ["cpu", "devices", "memory", "blkio", "cpuacct"] as shown in qemu.conf. I want to add one more controller of net_cls. I tried to modify the config file to ...
0
votes
1answer
55 views

Masquerading a Webserver [closed]

I was trying to gain access to a piece of obsolete network hardware by intercepting into the configuration information that it is downloading from a remote server(with a public IP - This server exists ...
2
votes
1answer
101 views

Network monitor 3.4 issue

I am getting the following error message when I try to run network monitor on a windows 2003 DNS server I am trying to decommission. C:\>Nmcap.exe /network * /capture KerberosV5 || TCP.port==389 ...
0
votes
1answer
52 views

Developing an SNMP agent for linux

I'm developing a snmp agent for linux and I wonder if there is a directory or file proper protocol statistics snmp OIDs to develop snmpInPkts, snmpOutPkts, snmpInBadVersions, snmpInBadCommunityNames. ...
1
vote
1answer
325 views

Collectd Network plugins didn't open listening port

I tried to send the monitoring data to my centralized collectd and found this error in the log [2013-08-09 07:04:22] bind: Cannot assign requested address [2013-08-09 07:04:22] network plugin: ...
1
vote
2answers
145 views

Testing DNS “health” — whether domains are pointing to the correct IPs

I'm planning on switching from one registrar to another. Fortunately I've been able to pre-enter the zone information so that when the transfer takes place, everything should behave the same. ...
0
votes
1answer
216 views

Cisco Prime NCS not starting

I have received the Cisco Prime OVA file and which we placed onto an Oracle virtual environment. We turn the VM on and the CLI boots, When we try to start the NCS service we get errors. ...
0
votes
1answer
76 views

tshark duration of a conversation for a ip address

i can retrieve the follow info from a .pcap : ================================================================================ IPv4 Conversations Filter:ip.addr==1xx.1xx.0.1xx ...