Networking :: Throttling Bandwidth With Iptables And Tc

May 14, 2010

I am trying to limit bandwidth of certain ip addresses on my server. I have been doing hours of reading and not getting very far...

So far I believe the iptables command is:

And now I just need the tc command to read those marks and limit bandwidth, I have a gigabit connection and would like to limit each of these ip addresses to 10mbit in and out.

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OpenSUSE Network :: Throttling Bandwidth On Apache ?

Nov 25, 2010

There seems to be many different ways of controlling bandwidth usage of downloads of content from Apache2. Does anyone know which is the standard module deployed/deployable in OpenSuse?

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General :: Bandwidth Throttling In Squid Server?

Apr 23, 2011

How to do bandwidth throttling in Squid server? i wan to set particular bandwidth for particular ip, how to do it in Squid server?

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General :: Router - Setting Up Bandwidth Throttling For ADSL?

Jul 4, 2010

I'm going to set up a new linux router for a company, and have to set up bandwidth throttling. They have an unlimited ADSL internet connection which will be shared between 2 businesses, one being them. I will need to set it up so their connection will never be slowed down by the other business. They will both be connected to the same NIC, but will be on different subnets. How would I go about doing this?

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Software :: Dynamic Bandwidth Throttling For SFTP-uploads?

Aug 20, 2010

I am uploading the incremental backups using duply/duplicity using the sftp-module. As the initial upload is pretty big and runs several days (more than 50GB over a 1Mbps-line) I am confronted with the problem that other users in the network experience slowdowns when I upload.

I would like to run a script every n minutes which pings a host in the internet (second hop of the traceroute for example). If the response time is less than a value (150ms), the script throttles the upload for one specific host and protocol. Traffic to the local net (Samba mainly) should be unaffected. I cannot use the QoS of the firewall/router. Also I would like the penalty to be removed if the ping is quicker (loess than 70ms for example) I looked at trickle, and some other out-of-the-box shaping tools but they do not give me the possibility to change the rate while the upload is running.

I would now write a script in perl which uses [URL]some wrapper for iptables combined with some ping module [URL] Also I was trying to get the proof of concept before I start coding: (I haven't verified if this works yet)

sudo tc qdisc add dev eth0 root handle 11: cbq bandwidth 100Mbit avpkt 1000 mpu 64
sudo tc class add dev eth0 parent 11:0 classid 11:1 cbq rate 100kbit allot 1514 prio 1 avpkt 1000 bounded
sudo tc filter add dev eth0 parent 11:0 protocol ip prio 16 u32 match ip dst MyserverIP flowid 1:1

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Networking :: Settings Up IpTables To Log Bandwidth On Ubuntu

Mar 1, 2010

I would like to set up a logging system for rtorrent, the only way that i could think of this would be to set up bandwidth moniters in the ip tables but im not sure how to go around this.

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Networking :: Bandwidth Management With It / Ubuntu - Filter Traffics Using Tc And Iptables

Jan 1, 2011

i wanted to do bandwidth management/traffic shaping on my Internet link(have two internet connections), but i have some questions to ask: I want to know how could i for example filter some traffics using tc and iptables (e.g Peer-to-Peer,IM,Download Managers,Flash videos..) i can do filtering for known services like http,ssh,... but since these applications doesn't use one port, i am confused a little bit. I also want to do some bandwidth allocations (based on protocol) thats why i need filtering.

The other question is that currently i am using tc for bandwidth allocation and iptables for marking packets to send to these classes, am i doing it right? I mean it does work, but is it better to use for example "U32" filters for filtering? P.S: i tried to use ClearOS in gateway mode, but it doesn't have bandwidth allocation functionality. Does anyone know if i could do bandwidth allocation in ClearOS/Endian.

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Fedora Networking :: Finding The Upcoming Bandwidth And Specify The Bandwidth Rateto Classes

Nov 18, 2010

I created a the class like this for shaping the packets with a specified bandwidth rate.....

tc qdisc del dev eth0 root
tc qdisc add dev eth0 root handle 1: htb default 15
tc class add dev eth0 parent 1:0 classid 1:1 htb rate 750kbit ceil 750kbit
tc class add dev eth0 parent 1:1 classid 1:3 htb rate 600kbit ceil 750kbit prio 0

For Our Requirement:-

I dont want to specify the bandwidth rate strictly like this rate750kbit ceil 750kbit,based on whatever speed is coming which should allocate the bandwidth rate for particular class...I need one application for finding the upcoming bandwidth & Is any other method is there for specify the bandwidth rate in a classes.

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Server :: Lessen Impact Of Bandwidth Attacks With IPTables Or APF?

Apr 26, 2011

My server has been the repeated victim of bandwidth attacks: any large file on the server is downloaded repeatedly, with the goal of pushing the server over the provider's bandwidth limit. How can I lessen the effect of these kinds of attacks with IPTables or APF? For example, can I set the server to: Is this possible? Is there a more effective way, and can a firewall even do this? My web server is Lighttpd, perhaps I can place such a rule directly in its config?

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Security :: Limit Incoming HTTP Bandwidth Usage With IPtables

Apr 5, 2011

Can I, with only the use of IPTABLES, limit the incoming bandwith for a protocol? We have for example servers that have a FTP and HTTP server running and whenever HTTP has a lot of connections open, the other uploads/downloads get a timeout. I know I can limit the number of connections but prefer to limit on protocol level. Is this possible using IPTABLES and if so, can someone indicate how to proceed or provide a link? If it's not possible can someone point me to the right tool for the job?

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Ubuntu Networking :: Transmission Throttling Internet Connection?

Nov 6, 2010

Every time I use Transmission for torrent download it throttles my Internet connection although I set speed limits way below my bandwidth.

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Networking :: ADSL Broadband Throttling File Download ?

Apr 26, 2010

I'm not getting file transfers that utilize the max bandwidth of my ADSL broadband. I have a 512 kbps line (I know that's not broadband in most places, but such is the option available to me), and I usually get download speeds of 55-60 kbps. Since the past couple of days, this has dropped to an abysmal 2-3 kbps. So I used [url] to test my download speeds, and they were as expected (i.e. the usual 55-60 kbps). I also used the speed test page of my ISP, and that too, gave the usual results. There has been no throttling from the ISP, as I confirmed from their help desk.

Also, web pages open fine. It's only when I'm downloading a file (Yeah, web pages are also files, but what I mean is compressed archived files; .rar, .tar.?g* et.al.) that I can't get the desired speed. I haven't changed the resolv.conf file, not have I made any other changes that might cause this. I use ppp to dial-up to my ISP, and use the pon and poff scripts that ppp provides. I have a peers file configured for my ISP, which again, I haven't edited.

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Networking :: Control Bandwidth Access With Squid - Allow Certain IPs To Have Higher Bandwidth Access?

May 27, 2009

We have a sipmle office network set up that we also use use to connect to the internet, however of late the number of users has increased thus slowing internet access. Bandwidth upgrade is not an option thus i have to do bandwidth shaping on our linux router. The question is how do set the squid configs to allow certain IP's range a certain percentage bandwidtheg 60% and furthe divide the rest. Alternatively how can allow certain IPs to have higher bandwidth access.

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Networking :: Bandwidth Monitoring Using SSH

Oct 5, 2009

I am renting a VPS from[URL].They do not supply a webhosting panel for restarting/shutting down or for seeing monthly bandwidth consumtion. I am running CentOS 5.3. I was wondering if theres any programs that you can install to view monthly/daily bandwidth consumption on our server?

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Networking :: Which Program For Bandwidth Monitoring

Dec 18, 2009

Im looking for a program to monitor the ammount of bandwidth usage per network. Ex: I have lots of networks connected to one server, and i would like to know for example how much is the average bandwitdh usage for network 172.16.2.0/24 and 172.16.5.0/24 for one hour, for example.

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Networking :: Changing Bandwidth During A Simulation?

Mar 22, 2010

I'm doing some simulations (using Iperf) to obtain throughputs values of a link between two gigabit ethernet cards for different delays and different drop probability (using netem) .... Now I have to do a 3minute long simulation in which during the firstnute the bandwidth is 1000Mbit/s, 500Mbit/s during the second minute and 1000Mbit/s during ththird one....Does anybody know how can i do this type simulation

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Networking :: Possible To Get The Available Bandwidth Run App In Client Side

Nov 26, 2010

Calculating the available bandwidth methods IGI/PTR,PATHLOAD,SLOPS,PACKET PAIR...

I gone through above methodogies ,when i finish one methods(IGI/PTR) i came to know,one application should run in client side and another application should run in server side (i.e,) Internet Service Provider side,

In IGI/PTR method ./ptr-client.c & ./ptr-server.c is there .,if we want available bandwidth,I Should run ./ptr-client.c (in myside)correspondingly ./ptr-server.c then only we wil get a availble bandwidth...

My need is without run any application on the server side ./ptr-server.c like that,but I should develop the application only on client side (in my routerside based on linux)..

1:whether it is possible to get the available bandwidth run application in client side only?.if possible. how i implement the code in client side( only )for getting the available bandwidth ...whether any source code is available?...

I dont want to test the speedtest.in (in GUI )

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Networking :: Bandwidth Management Between Different Departments?

Sep 25, 2010

I am Network Administrator in a Degree College managing around 2500 Comps. My ISP has terminated its Internet link (15 Mbps) to our Linux Server (Installed 2 NIC) from where Internet connection is extended to rest of the machines in network. I am supposed to send different bandwidth to different departments say 5 Mbps to Hostel, 2 Mbps to Staff room etc. I am new to linux and don't know anything about Bandwidth Management in linux.

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Networking :: Bandwidth Monitoring For Computers With Different OS?

May 1, 2010

I am connected with LAN. We have many computers with different OS viz.linux, windows etc. Now I want to know the bandwidth every computer is getting and using. Is there any Ubuntu packages to monitor this?

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Networking :: How To Manage Bandwidth In Squid

Mar 7, 2011

I am using SQUID 2.6 on cent os. Squid as a proxy server is working fine. I want to manage my bandwidth according to my office staff.Like for top management users may allocate 1 MB and rest of the users as 256 kb.Kindly guide me that how can I do it ?

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Networking :: How To Check Bandwidth - Get Value Of Throughput

Apr 15, 2011

My objective is when the throughput is increase my shell script is Print a message. But the Question is how to check the bandwidth.

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Networking :: How To Measure And Report Net Bandwidth Use

Feb 6, 2011

I'm looking for some utility that will measure my network bandwidth use and report it in ways that are human readable. Specifically, I want something that I can use to stay ahead of my mobile broadband plan's usage metering.

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Networking :: Isp Bandwidth Monitoring Tools

May 11, 2010

dear can someone highly gui or text base/command line tool that use as "isp bandwidth monitoring tools in linux".i do have leased line,frame relay, wireless linke,dsl too. i want to monitor what is uploading and downloading.

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Networking :: Limit The Amount Of Bandwidth Per Day?

Aug 17, 2010

I want to use the tc rules for bandwidth control in my lan.i have a linux router(traffic shaper).how i can limit the amount of bandwidth every user has access to per day? For example, any user can't download more than 2 gb per day(or per month).

The information about lan's users(such as a group type,userid,etc.but not any thing about time limiting per user)is in ldap directory on ldap server.the linux server uses ldap server for authentication users when the user login.

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Networking :: Limiting Bandwidth Per IP In Ubuntu

Apr 12, 2010

You may have seen some other posts by me about my final year college project. Im implementing a web based network management website. Iv got a lot of the functionality working at this stage but one part is allocating bandwidth.

Iv got an eircom 3mb broadband connection and I want to be able to split this between users. At the moment I only have my desktop and laptop on the network. Im looking for advice on how i can allocate bandwidth with iptables and/or the tc tool in ubuntu.

My website is on an ubuntu virtual machine and written in php. Whatever about running the iptables and tc commands from php I still need to figure out the actual commands i need to use in the first place.

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Networking :: Need Bandwidth Traffic Measure By IP

May 25, 2011

I have a proxy/gateway server with X routable addresses and X clients, each connecting to his corresponding address from my server. All clients have public static IP's. I need something like the output of 'pktstat -1 -w 10 -B -i eth0 -n -P -t -T' but that would indicate the biggest'traffic hogs' from my clients.

Something like:
67.78.89.90 <-> my.public.ip.1 1344KB/s up 289KB/s down
56.67.78.89 <-> my.public.ip.2 1203KB/s up 200KB/s down

With this output, I can limit the traffic passing thru my server using a bandwidth limiter on my.public.ip.1 and my.public.ip.2. Pktstat only shows the total traffic from-to the respective IP's gathered in a 10second interval (-w 10). I would like something that would indicate the bandwidth per ip more precisely, I don't want to divide the total traffic by 10 (seconds).
Please note that this will go in a cron job. The interactive tools like iftop are useless (I would like something like a text screenshot of iftop from which I could extract the needed information).

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Networking :: Removing All Bandwidth Limitations

Apr 25, 2010

I have a network camera, with a linux OS. We need it to be really precise in its timing for the specific application we want it for. But it's not!

After killing some of the garbage processes on it (and having some achievements, but not enough), it seems that there's some kind of bandwidth limiting applied on the outgoing traffic.

My question: What are all the things that should be done on a machine, running linux, to remove all the bandwidth limitations?

Notes:

1- With my very basic knowledge about traffic shaping in linux, I have made these observations:

# tc qdisc ls dev eth0
qdisc pfifo_fast 0: root bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1
# tc qdisc del dev eth0 root
RTNETLINK answers: No such file or directory

2- I am trying to download the images from an HTTP link, and I already have about 14Mbps. I want it to reach at least 50Mbps. I can download with speeds higher than this when downloading from another PC on a windows network. So I assume this is not a problem with the cables. Also the eth0 on the camera is said to be a 100Mbps device.

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Networking :: Reserve More Bandwidth For Some Domains

Jan 25, 2011

Can ubuntu be configured to reserve more bandwidth for some domains at the expense of others?

Eg you are browsing facebook and data comes faster than on a tab where you are browsing ......

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Fedora :: CPU Throttling Performance ?

Sep 2, 2009

After being forced to rebuild my computer (failed drive) I finally got current and installed F11 (was using F9). I was watching GKrellm last night and noticed something odd. The CPU frequency on my processor (Phenom 9600) was scaled to the slower speed and was rarely being pushed to full speed.

I verified that cpuspeed was in ondemand mode and ran some processor intense tasks (huge image loads, large file cats, large yum installs, etc...). Only when I was able to sustain near 100% load would the system throttle to the full clock speed. It would then drop back to the slower speed very quickly even though the process was still running. As a rough benchmark, I ran these tasks again in performance mode to see what impact this was having. Most of these tasks were taking as much as 40-50% longer to complete in ondemand mode.

Digging further, I found that the default up_threshold in F11 is set to 95%!! This is verified by cating /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold. This means that the system would not throttle to full speed unless a 95% load was sustained for multiple samples (36 miliseconds each by default).

I overrode these settings in /etc/sysconfig/cpuspeed. I change up_threshold to 60 and down_threshold to 30. I am at work right now, so I can't benchmark this change until tonight. I guess I could have just set it to performance mode and left it, but I'd rather save the power when the machine is idle.

Does anyone have any thoughts on why 95% is the default and if there is any problem/benefit to changing this to a much lower value? It seems that anyone with a CPU running SpeedStep or CoolnQuiet would suffer the same severe performance impacts I saw with the default values.

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Fedora :: Turning Off Cpu Throttling

Jun 8, 2010

I want to install ATLAS on my laptop to do this i have to turn of cpu throttling.

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