In computer networking and computer science, bandwidth, network bandwidth, data bandwidth, or digital bandwidth is a measure of available or consumed data communication resources expressed in bits/second or multiples of it (kilobits/s, megabits/s etc.).

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How to check the bandwith that is used by each connection on Apache?

I am trying to get stats on how much of a bandwidth each connection uses on Apache? I have Apache 2.4 installed on Windows Server 2008 R2. I would like to know how many users more I can add on my ...
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14 views

Monitor bandwidth consumption for all connected PC over wifi

We have two internet connection connected to individual wifi router (beetel) in our office, lately i am experiencing very slow internet connection or frequent connection drops, when complained to ISP, ...
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20 views

Windows Server | Graphs to monitor resorces [on hold]

So Linux users have "Dstat" which lets them monitor the network with graphs. Is there any Windows alternative? I am looking for real time graphs to monitor network and cpu/memory (as a bonus) on ...
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2answers
43 views

Is it possible to test throughput without server cooperation?

To measure throughput between two points in a network using iperf, you have to run iperf at one point in server mode. My question is, is there a tool I can use to measure this bandwidth without ...
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24 views

How to calculate bandwidth used by serving images only? [closed]

Hope the title is clear. I've been asked about how much services like cloudinary could cost on specific sites (so serving images hosted by a third party). Their plans usually depend on the amount of ...
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4answers
5k views

How can I limit a users bandwidth in Windows Server 2008 R2 [closed]

We have a user that likes to download movies with torrents in our office and it just kills the overall network performance. Unfortunately we need this user and don't want to confront him directly ...
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2answers
49 views

Individuals able to hit our bandwidth cap… Only a recent phenomenon?

We have a 10Mbps (synchronous) connection with our ISP. Recently we have discovered that if a single user is watching Netflix, or if I run Windows Update on a PC, we will totally saturate that 10Mbps ...
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6answers
495 views

Gaming on an office lan [closed]

don't shoot me for this one. I'm wanting to get a few of us in our team (say 5 players) to start playing a network game in the office (you know... team building and all that ;) ) - thinking that ...
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3answers
1k views

Cisco 881 throughput/bandwidth issue

We have a dedicated 30Mb connection (up/down) from our ISP, but we can only seem to get 10Mb (up/down) from the router. Does anyone know what we're missing, or how we can tweak the settings on this ...
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1answer
1k views

Iperf bidirectional bandwidth measurement

Server side: # iperf -s ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) ...
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3answers
120 views

IM traffic bandwidth

I work at a midsized global company (~3000 employees), and I recently have had the opportunity to train a new employee. The new guy asked about IM at the workplace, and I told him to have the IT ...
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1answer
23 views

iptables connlimit: exclude multiple IP addresses

I have currently this IPTABLES command: iptables -A INPUT -s ! 192.168.0.2 -p tcp --syn -m connlimit [...] -j DROP As far as I know, such rule limit some number of connections following various ...
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8 views

vnstats // stats showing large tx amount

I have installed vnstat 2 days ago; the site got something like 20k+ visits in this time frame. I can read a rx value of 2.16Gb but a tx value of 61.2Gb. Feels like something's going wrong. How ...
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16 views

Linux Traffic Shaping: ceil rate never reached

My application run on port 8080. I have this iptables command: iptables -A OUTPUT -t mangle -p tcp --sport 8080 -j MARK --set-mark 10 I have also theses TC rules: tc qdisc add dev eth0 root handle ...
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1answer
31 views

How can identify and quantify physical plant (network capacity) in my local area? [closed]

I am interested in identifying physical plant and network capacity in my local area, which happens to be Boston, but could be anywhere. For example, I understand that in Boston there is something ...
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1answer
146 views

Guaranteed international bandwidth solution?

How plausible is it to transfer large amounts of data consistently via the network? For example, is there a way to guarantee a minimum upload speed of 8Mb/sec from various international sites (Hong ...
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2answers
60 views

How to measure and monitor available network bandwidth without stealing network bandwidth?

Please note that I am not asking for well known usual bandwidth monitoring tools like ntop, iperf, vnstat etc. I would like to measure periodically and reliably the max. available bandwidth of a ...
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0answers
41 views

wondershaper doesn't work for redirected traffic

I'm trying to prioritize my network so small packages get through quicker so latency-dependent applications don't get unusable when downloading/watching videos. I want to use one pc(with one nic) ...
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818 views

pfsense 2.0 traffic priority - set full priority for single host

I have a network with several computers all on the same network and since I have very limited bandwidth I would like to prioritize traffic almost like a CPU scheduler prioritize processes. Example: ...
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1answer
61 views

rsync using only spare bandwidth?

My scenario: Several rural schools Every school: One linux server Limited bandwidth (shared with all school PCs) Electricity not guaranteed (last to leave the school could cut all electricity) ...
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68 views

Mac OS X > pfctl > How to limit Bandwidth for a specific port?

I need to limit the Bandwidth of our Apache Server (which runs on port 80 by default). It was easy with ipfw as follows: sudo ipfw pipe 1 config bw 100Kbytes/s sudo ipfw add 1 pipe 1 src-port 80 ...
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2answers
957 views

When reading SSD drive specs, what's the difference between MB/s and IOPS?

I'm trying to find a suitable SSD drive for my database server (postgres on debian 7 amd-64), and I find that for some SSD drives, while read speed is specified in MB/s, write speed is in IOPS. To ...
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1answer
73 views

psping to localhost - improve throughput

I'm using following psping command to measure the bandwith throughput for localhost on a physical server psping -4 -b -l 8k -n 20000 localhost:1234 The throughput is around 150MB/s wich isn't all ...
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253 views

Simulate slow connection between two ubuntu server machines

I want to simulate the following scenario: given that I have 4 ubuntu server machines A,B,C and D. I want to reduce the network bandwidth by 20% between machine A and machine C and 10% between A and ...
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4answers
11k views

Fortigate bandwidth monitoring

I have a Fortigate 200B with Forti OS 5.0. How can I watch the total bandwidth being used by my unit both incoming and outgoing? Thanks
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1answer
18 views

Keep showing old processes in nethogs

Nethogs stops showing idle processes after a while. How can I make it keep showing them? I want to have a complete history of processes for long time. Is there any alternative to nethogs?
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1answer
50 views

AWS per connection download limit

I want to spawn a redis slave in AWS (Sydney), which needs ~20Mbit/s to catch up on the writes of the master located in germany. Problem: I get only 8Mbit/s (1MB/s). Tried bigger instance types ...
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116 views

Selecting a webserver configuration

I have a website, which has grown from 10 visits per day, to 100 per day in couple of months, and now to about 800 unique visits per day. So far, I have been using a VPS with 512MB RAM, and shared ...
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2answers
107 views

Multilayer LACP

I have a network switch that is limited to 2x1Gb/s LACP teaming, however have a file server with a 4x1Gb/s network interface. What options do I have to aggregate all available bandwidth without ...
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3answers
2k views

Configure a Linux router for fair bandwidth allocation without unnecessary limiting it

I run a Linux router (more precisely OpenWRT) on an internet connection with very limited bandwidth, around 1 MBit/s downstream and some dozen kBit/s upstream. There are several machines on the net ...
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720 views

FreeBSD link aggregation no faster than single link

We put a 4 port Intel I340-T4 NIC in a FreeBSD 9.3 server1 and configured it for link aggregation in LACP mode in an attempt to decrease the time it takes to mirror 8 to 16 TiB of data from a master ...
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1answer
2k views

How can MediaFire afford unlimited storage space and bandwidth? [closed]

How can MediaFire (and other online storage websites) afford to offer unlimited storage space, as well as unlimited bandwidth?
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438 views

Does google's web crawler download binary files?

My Google-fu is failing me right now. I'm trying to figure out whether Google's web crawler downloads non-image binary files when it spiders sites. I know it downloads (and indexes) images and PDFs, ...
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0answers
56 views

How to monitor the bandwidth per each iptables masqueraded device [closed]

Question: Which tool could I use to monitor and break-down in real-time which bandwidth is routed by iptables to which computers? Context: I have a linux box masquerading about 15 devices to ...
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41 views

Windows Server 2008 consuming a lot of bandwidth

My Windows Server 2008 has been consuming A LOT of bandwidth in the last days (990 GB). This is a development server so it should not consume more than 100mb aprox. We noticed this after the server ...
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5answers
4k views

finding the best network latency between two countries

I know there are many tools to test for bandwidth and latency, but they all rely on having at least one host from which you can run those tests. I wonder whether there's an online source or some ...
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1answer
183 views

How Do I Limit Bandwidth For Connections On My Ubuntu VPS?

I have a VPS with Ubuntu 12.04 installed, with a 35Gb limit each month (any more than that used and I have to pay). I normally use it with Zpanel to host a Joomla website, and keep the mail ports ...
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1answer
261 views

nginx - limiting bandwidth usage per server block

In Apache we have some great solutions for limiting the bandwidth usage per vhost, like mod_bandwidth. However, since I started using nginx, I couldn't find a way of limiting and monitoring the ...
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71 views

Apache2 Mod CBAND what happens if the limit is reached?

I setup an Apache2 server with the mod_cband to limit download speed at 512kb/s, and I was wondering what happens if I reach the limit. For example, if my server connection is 100Mb/s, I would ...
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2answers
49 views

How much traffic does a Ubuntu server cause for updates? [closed]

Does anybody have some numbers on how much traffic/month a ubuntu server causes if automatic updates are enabled (just for fetching the apt sources and the packages)? I have a small box which is ...
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1answer
942 views

SonicWall TZ 200 Network bandwidth or usage monitoring

I was using Pfsense for a while and recently replaced it with SonicWall TZ200. What I miss now is a Bandwidth or usage monitoring like BandwidthD to monitor IP wise traffic. How can I do this ...
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15 views

Sonicwall 250m bandwidth

We have an nsa 250m with the SonicOS Enhanced 5.9.0.2-107o version. Is there a way to manage bandwidth by group ? I'm already able to do this this by user with this method Firewalls => Access rules ...
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1answer
50 views

Monitor bandwidth per directory [closed]

I have uploads directory and I would like to count the total downloads of files in that directory, in short, is it possible to monitor the consumed bandwidth per directory?
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76 views

Web server losing bandwidth for 6 hours a day

For the past week or so our CentOS server (that runs Apache and NGIX as a proxy) has been acting odd as its bandwidth output has been consistently dropping from around 10/11pm until 4am to around 1M ...
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3answers
159 views

What network performance is required for thin clients?

I am building a network with approx. 1000 thin clients. I intend to run them over VNC. What type of LAN bandwidth and latency are required? What type of hardware will provide that? If, instead of ...
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2answers
498 views

Bandwidth monitor for apache websites

I am after a web application that will parse apache log files and record how much bandwidth the user has used. We have several virtual hosts that have custom log files and the I/O is recorded at the ...
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2answers
64 views

Huge Outgoing traffic on windwos azure [closed]

I have a vm on Windows Azure running centos6 as dev node, and have recently experiencing a huge increase in outgoing traffic. VM was stopped and after started by 1 day it shows 236.63 GB on outgoing ...
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2answers
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lxc bandwidth control using tc

I am trying to restrict bandwidth inside my containers. I have tried using the following commands , But I think it is not getting effective. cd /sys/fs/cgroup/net_cls/ echo 0x1001 > ...
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Web Hosting Bandwidth

The company that hosts my web servers mentions a 2mb/s dedicated bandwidth with a burst of up to 5mb/s using the 95th percentile ( Burstable ) billing. To me that sounds slow but I know nothing about ...
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131 views

Windows 2012 R2 RRAS VPN Bandwidth issue (worked fine with 2008 R2)

3 machines : VPN Server (VS) Random Server (RS) My Personnal Computer (PC) PC and VS on different networks VS and RS are on same network VS can connect the internet directly and has a bandwidth of ...