Tagged Questions

The rate of data transfer. Bandwidth usually refers to Internet but it can also apply to other systems like the motherboard.

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4
votes
1answer
55 views
+100

Can you throttle the bandwidth to a tmpfs based ramdisk?

I created a ramdisk using tmpfs as follows: sudo mount -t tmpfs -o size=1024m tmpfs /myramdisk I was looking into cgroup blkio subsystem bandwidth limits "read_bps_device" and "write_bps_device" ...
1
vote
0answers
12 views

Bandwidth stats on wifi for each network?

Is it posible to have the bandwidth usage of the wifi connection for each network I use? Currently I have vnstat instaled on my MacBook Pro retina runing Yosemite. It works well but I have the usage ...
0
votes
1answer
22 views

WiFi Connection to ADSL Modem based on MAC

Recently my desktop machine is under attack and someone is leeching my DSL bandwidth. After consultation I find out I can tell my modem to only accept wifi connection according to system MAC address. ...
2
votes
1answer
45 views

How to find out how much of internet bandwidth is used by all processes except one specific process?

As a followup question to this one: I am downloading a file on multiple remote computers using curl command and am using the --limit-rate parameter to limit the download speed on the ones whose ...
2
votes
1answer
34 views

Is it possible to dynamically change the --limit-rate parameter of curl?

As a followup question to this one: I am using the --limit-rate parameter to limit the download speed on computers whose internet is being used: curl --limit-rate 10k -r 104857601-209715200 -o ...
0
votes
0answers
40 views

Issues with net-SNMP . MRTG not generating graph to monitor network bandwidth

I am monitoring network bandwidth for my servers using MRTG . But suddenly can see graphs are not generated for one of the Linux servers running on CentOS 5.5 . SNMPD service is running on the server. ...
0
votes
1answer
110 views

How to test that my server is indeed in 1gbps connection?

I ordered a server and the host say I got 1gbps connection However, because I set up the server incorrectly, the speed drop to 10mbps I think now it has been fixed. But I want to make sure. This is ...
2
votes
1answer
118 views

Bandwith Usage in OpenVPN

Is there any way to check how much bandwidth a user used in OpenVPN (using PAM Authentication)
0
votes
1answer
101 views

How can one ensure bandwidth is not hijacked? [duplicate]

If someone sets up a script that constantly runs something such as wget http://domain.tld/image.png from their cloud server or whatever that came with tons of bandwidth and so on for free, could ...
5
votes
1answer
180 views

Why Nethogs won't see the PID of the processes the generating some NFS traffic?

I usually use Nethogs to see the network bandwidth per process. However, Nethogs won't see the PID of the processes generating some NFS traffic, and as a result they are aggregated over one single ...
1
vote
0answers
88 views

trickle (bandwidth shaper) with dropbox causes 100% CPU

I'm limiting dropbox upload bandwith with trickle as suggested here. @reboot trickle -u 100 ~/.dropbox-dist/dropboxd This works great but unfortunately causes 100% CPU - even with only 2-3 (small) ...
3
votes
3answers
491 views

Implementing load balancing on any Linux distro

I am thinking of implementing a load balancing solution for personal use. What I want to do, is to maximize data throughput over mobile phone Internet connections. Let me be clear: I have data plan ...
0
votes
1answer
225 views

Equivalent of scp -l bandwidth_cap for .ssh/config?

Short form: You can limit the bandwidth the scp uses with the -l switch, you pass a number that's in kbits/sec. I'd rather set this in my .ssh/config file for certain names machines. What's the ...
2
votes
0answers
46 views

How to limit network bandwidth after some data transferred?

So the question is in the name of topic. How to limit bandwidth I know. Using tc. But how to do so after, for example, traffic had reached 500MB. And after some time reset the limits.
36
votes
5answers
2k views

Who pays for the storage and bandwidth of repositories?

When I do a yum update or apt-get update, my machine is hitting several servers and downloading several packages. I would imagine that those servers are handling millions of similar requests on a ...
2
votes
1answer
52 views

How might I log my Internet traffic, grouped by IP address/hostname, port, etc?

While I'm going to be switching to a slightly saner plan soon, being stuck on a 5GB monthly bandwidth cap has made me very data-conscious, and I'm looking for a way to log my Internet usage in such a ...
3
votes
1answer
387 views

Control Dropbox upload rate on the command line

I'm using Dropbox without the GUI in Linux. I would like to limit the upload rate, sometimes large files eats my internet bandwidth. Anyone knows how I do that?
5
votes
1answer
936 views

How to change speed limit of running trickle instance

I started a program throttled using trickle as trickle -d 10 -u 5 program. Now I want to change change the throttling speed to -d 50 -u 40. How can I change it without closing the program ? ...
3
votes
1answer
136 views

Limiting download speed based on other LAN traffic

I'm kind of new to Linux (but learning) so bare with me if I say something stupid :P. I'm currently running an Ubuntu fileserver which automates a whole bunch of downloading tasks. At present it is ...
-1
votes
2answers
192 views

Bandwidth Management tool

There are tools available like MRTG , Cacti etc through which we can monitor network traffic on network interfaces on a host. The network traffic flow information that is provided by these tools is ...
0
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0answers
93 views

Capacities on Load-balancer & Web Servers? Bandwidth + Performance

I'm on DigitalOcean and I have a very simple scenario for my website. Now having 3000 concurrent hits every minutes. (For example) Currently it is directly on 1 only single Apache Server. The ...
9
votes
2answers
242 views

How do I get the current bandwidth speed of an interface from the terminal?

I want to get the current Bandwidth of an interface say "eth0" from the terminal. It better be as simple as possible. Say up 10 dn 30. Instead of giving out a lot of text like "vnstat" does. ...
1
vote
1answer
156 views

Internet bandwidth mysteriously drops under Linux, but is fine under Windows

I can't seem to download files from the internet on my laptop with Mint/Ubuntu, due to strange bandwidth fluctuations. I'm able to browse the web with Firefox with no problems, apt-get update and ...
1
vote
1answer
199 views

Bandwidth throttling per user group

I am wondering if it is possible to create a bandwidth shaping/throttling script that shapes traffic based on user group. That is, if user1, user2, are in user group group1, they will have 1mb/s ...
1
vote
0answers
282 views

Redirect all non-local traffic to a socks proxy

Is it possible to redirect all non-local traffic to a socks proxy? so, for example i have: 4 computers (clients A-D: 10.0.0.1-3 or dhcp) 1 computer with 2 network cards (gateway-server, eth0: ...
1
vote
2answers
617 views

Traffic-shaping Application with GUI

is there any free traffic shaping software for internet gateways with GUI for managing per user/computer bandwidth? At least it should able to manage per source IP (or MAC), or if possible with user ...
12
votes
4answers
671 views

Is there a top-like command that shows the network bandwidths and file accesses of running processes

For example, we'd like to see: PROCESS IF TX RX FILE(regular) R/W prog1 eth0 200kB/s 12kB/s -- -- wlan0 12kB/s 100kB/s -- ...
1
vote
0answers
214 views

Limit internet speed without tc [closed]

I have been using deb based Linux for years and I never had problems limiting the internet speed using wondershaper. On my sisters PC I had to install puppy Linux because it's a very old PC. The ...
2
votes
1answer
517 views

Network bandwidth measurement on Solaris

I want to install pathtest or a program like it in a Sparc server running solaris 10. The purpose is to make a speedtest server to my remote sites. It is mentioned in pathtest FAQ that it only ...
1
vote
1answer
257 views

Bandwidth usage monitoring [duplicate]

Possible Duplicate: Find out network traffic per IP I want to monitor my bandwidth usuage for wired as well wireless devices on my network. Is there any tool, preferably one that does not ...
1
vote
2answers
87 views

Is there a way track bandwidth over time like days, months?

I would like to know how much bandwidth is being used on my server. Not HTTP bandwidth, but all protocols. Basically iftop data over time continuously logged. Then I could write a simple python script ...
2
votes
2answers
685 views

Bandwith monitoring in Linux

I just need to get how much bandwidth is used in 3 or 4 days. Do you have any application in the terminal to do it? I'd prefer if it didn't use SNMP. I found iptraf, wireshark, cacti, but they were ...
4
votes
2answers
4k views

How to limit ftp speed

I have multiple users on a server. They upload and download their files through FTP. Sometimes some heavy transfer causes high load on the server. I am wondering, if there is any way to limit the ftp ...
1
vote
2answers
3k views

Limit bandwidth SFTP user

Is there any possibility to limit the bandwidth of an SFTP user? My server has an upload of ~500kb/s and I don't want to 'spend' it all on one user
2
votes
2answers
487 views

Monitor bandwidth usage from different virtual hosts

I've got a VPS running Ubuntu and Apache and hosting several sites on it using virtual hosts. It would be very interesting to monitor which of these sites takes the most power and bandwidth, I've been ...
2
votes
2answers
1k views

How does iperf calculate throughput and jitter?

I've read that iperf basically tries to send as much information down a connection as quickly as possible reporting on the throughput achieved. This tool is especially useful in determining the volume ...
17
votes
3answers
668 views

Limiting a specific shell's internet bandwidth usage

I want update my linux in one shell but by default wget or axel in updater use all the bandwidth. How can I limit the speed in this shell? I want other shells to have a fair share, and to limit ...
2
votes
3answers
803 views

How can I read lines at a fixed speed?

I need to read a large log file and send it over a local network using (netbsd) netcat between two VMs on the same host workstation. I know that netcat has an interval, but as far as I can tell, the ...
3
votes
0answers
234 views

How frequently are updates sent to a VNC client?

I am trying to understand how the VNC mechanism works. The RFB protocol 3.8 specifications say : The update protocol is demand-driven by the client. That is, an update is only sent from the ...
2
votes
1answer
301 views

Constantly pinging a server

I am not sure if this is exactly the right place for this question, but there is no networking stack exchange. I want to ping a server a bunch of times (eg.10,000+) to gather information on the ...
3
votes
3answers
8k views

Find out network traffic per IP

We have one central server which functions as an internet gateway. This server is connected to the internet, and using iptables we forward traffic and share the internet connection among all computers ...
14
votes
5answers
13k views

How can I limit the bandwidth used by a process?

I have a CentOS 5.7 server that will be backing up its files nightly. I am concerned that visitors to the various sites that the server hosts will experience degraded performance while the backup is ...
4
votes
4answers
6k views

Restrict bandwidth with DD-WRT

I have DD-WRT installed on my router and I would like to be able to restrict the bandwidth both up and down on a certain IP or Mac address. I am happy to get my hands dirty and use console. I am sure ...
2
votes
2answers
421 views

How to identify the program that uses most bandwidth?

How can I know which application is using the most network bandwidth? I saw some graph from KDE's network monitor, but don't know which process did that.
2
votes
0answers
139 views

How to fairly share bandwidth between IPs with tc?

I have a linux router (d-link 320-nru) with tc installed. I have some users' computers to fairly share bandwidth between them. Also there is such complication as inconstant uplink bandwidth. How can ...
16
votes
5answers
32k views

How to limit network bandwidth?

Problem: We are hosting an application on remote server. We need to test it with a limited network bandwidth (for users with bad Internet access). Question: Can I limit my internet bandwidth (in ...
7
votes
1answer
948 views

Transfer large files without hogging the bandwidth (is there a BITS equivalent for Linux?)

Is an implementation of Microsoft's Background Intelligent Transfer Service (BITS) available for Linux systems? I'm looking at my options for transferring large files to a remote Linux server over ...
1
vote
1answer
383 views

netcat throughput low but iperf high [closed]

I was testing the throughput between two pcs connected on the same router: one with 100mbps lan, the other with 54mbps wifi. I tested both netcat and iperf and the throughtput I get is only 2.6mb/s. ...
0
votes
3answers
2k views

RAMFS seems slower than expected — what is the bottleneck?

RAMFS doesn't uses swap (TMPFS does). So I mount the FS cd /mnt/; mkdir SOMETHING; mount -t ramfs -o size=1500m ramfs /mnt/SOMETHING; cd /mnt/SOMETHING I generate a testfile: dd if=/dev/zero ...
5
votes
6answers
22k views

Console tool to test internet bandwidth

I'm looking for a tool that will test my internet connection bandwidth and create an simple report like speedtest does. Do you know some program/tool that do this? Something with CentOS packages ...