Networking :: How To Check Bandwidth - Get Value Of Throughput
Apr 15, 2011My 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 :: Check Who Has The Highest Bandwidth In A Network?
Aug 1, 2010currently i've face a problem of having a slow internet connection on our office, i was asked to check who among the users under the network uses the most.
is there a way how to check it?
Fedora Networking :: Finding The Upcoming Bandwidth And Specify The Bandwidth Rateto Classes
Nov 18, 2010I 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.
General :: Check Which IP Using Bandwidth
Nov 7, 2010Is there a way to check which IP is using the most bandwidth at any one time? I have a proxy server running and occasionally some users download videos instead of stream them, which hogs the bandwidth on their connection and denies other users access.
View 16 Replies View RelatedGeneral :: How To Check Bandwidth Usage Log
Oct 6, 2010I have one dedicated server in godaddy. Now I got mail regarding overage bandwidth. I don't know how to check this and I must give report how its happen.
View 1 Replies View RelatedGeneral :: Check Server Bandwidth Usage In Real Time?
Mar 21, 2010I'm trying to check my server's bandwidth usage in real time, installed the following programs but none worked so far.
Iptraf - No results even when using iptraf -u
Tcptrack - Error : pcap_loop: cooked-mode frame doesn't have room for sll header
Iftop - No results, everything 0b
Are there any programs that displays bandwidth usage in real time and actually works on VPSes? Or getting real time bandwidth usage on a VPS is simply impossible?
Networking :: Total Throughput Of A 100mbps Line?
Nov 14, 2010Lets assume we have a 100mbps connection between two servers in same switch. then How much is the total throughput of the connection between servers. For example if I am downloading with 70mbps from other server , do I still have 100mbps upload BW available ? or 30mbps is available ? in other words for a 100mbps connection , the limit of download+upload is 100mbps ? or we have 100mbps download and 100mbps upload available ?
View 12 Replies View RelatedUbuntu Networking :: Iperf Throughput Test Between Two NIC'S?
May 30, 2011I have pc with two NIC's (eht0 and eth1). I want to test throughput switch/router.I can ping on both interfaces.Connection Diagram:
eth0 -> Patchcord -> testing devices -> Patchcord -> eth1
I run two iperf:
-s -B 192.168.1.10 (eth0)
-c 192.168.1.20 -B 192.168.1.20 (eth1)
Results:
[ 3] 0.0-10.0 sec 4.45 GBytes 3.82 Gbits/sec
The test results are false because I use 100Mb/s NIC's. I can't use two pc's for test.I tried to do the same test under windows 7 x64 it and works properly, but under windows xp there occurs the same problem like under ubuntu.
Networking :: Tuning For High Throughput Reverse-proxy Server?
Jan 18, 2011I have an enormous quadcore machine with 16gb ram and dual gigabit NICs. It used to be for MySQL but we have upgraded the whole database infrastructure so now this server is left floating. I had the great idea of turning this into a reverse-proxy (using apache mod_proxy) and it really handles a ton of requests. But I have a feeling that we are not getting the most use out of what it can offer.
Our traffic consists of a few thousand very small (less than 10 byte) ajax calls per second, and frequently I find we are running out of kernel allocated network stack to handle all the requests. Often we get the kern.log warning "possible SYN flooding on port 80. Sending cookies." and other things like this. Obviously we are not getting SYN flooded, we just have very high demand.
So far I have found a few kernel tuning guides to tell the kernel to allocate more of the base system memory for networking but every guide I have found has been for the purpose of increasing the performance between WAN links (direct backbones between offices etc) and usually with very large file sizes being the priority. One such example (and great) write up is here:
cyberciti.biz/faq/linux-tcp-tuning/
I was hoping some people could provide further input, such as along the lines of disabling nf_conntrack (to speed up socket set up/tear down time) or anything that will speed up a high throughput proxy like mine. Any links to studies or benchmarks between different configurations or hardware gets extra points!
Networking :: Control Bandwidth Access With Squid - Allow Certain IPs To Have Higher Bandwidth Access?
May 27, 2009We 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.
View 1 Replies View RelatedSoftware :: See The Tps Or Throughput Of Any Machine
Aug 4, 2011i want to know the throughput of my pc after i enable RFS and RPS configuration. how to calculate tps or how to see throughput ......
View 1 Replies View RelatedRed Hat / Fedora :: Calculating The Throughput Of A Server?
Feb 21, 2011I have read many articles on hdparam to calculate the disk read and write speeds and some on interface and CPU limits. But is there a structured way of calculating the maximum throughput of a server including all the subsystems. Like storage, CPU, network, memory and so on? So that I can create a script that i can run on a newly installed Linux machine and calculate the maximum throughput .
View 4 Replies View RelatedSoftware :: Measuring Network Throughput
May 15, 2010I want to know the actual maximum throughput of my lan at home.Could you suggest some free monitoring tools for me to use
View 2 Replies View RelatedNetworking :: Bandwidth Monitoring Using SSH
Oct 5, 2009I 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?
View 2 Replies View RelatedUbuntu :: Slow USB Throughput After Natty Update?
Jul 7, 2011I accepted the latest Natty update about which I was notified a couple of days ago (I don't remember exactly). I don't remember a new kernel being pushed out, but for the record I'm on 2.6.38-8-generic right now. I'm trying to interact with a USB compact flash reader and I'm getting ridiculously low throughput (less than 1 MB per second). Before this latest upgrade, I don't remember this being a problem.
Better yet, does anybody know what might be wrong and what I might be able to do to fix this?
Networking :: Which Program For Bandwidth Monitoring
Dec 18, 2009Im 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.
View 1 Replies View RelatedNetworking :: Changing Bandwidth During A Simulation?
Mar 22, 2010I'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
View 4 Replies View RelatedNetworking :: Throttling Bandwidth With Iptables And Tc
May 14, 2010I 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.
Networking :: Possible To Get The Available Bandwidth Run App In Client Side
Nov 26, 2010Calculating 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 )
Networking :: Bandwidth Management Between Different Departments?
Sep 25, 2010I 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.
View 2 Replies View RelatedNetworking :: Bandwidth Monitoring For Computers With Different OS?
May 1, 2010I 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?
View 1 Replies View RelatedNetworking :: How To Manage Bandwidth In Squid
Mar 7, 2011I 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 ?
View 1 Replies View RelatedNetworking :: How To Measure And Report Net Bandwidth Use
Feb 6, 2011I'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.
View 2 Replies View RelatedNetworking :: Isp Bandwidth Monitoring Tools
May 11, 2010dear 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.
View 11 Replies View RelatedNetworking :: Limit The Amount Of Bandwidth Per Day?
Aug 17, 2010I 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.
Networking :: Limiting Bandwidth Per IP In Ubuntu
Apr 12, 2010You 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.
Networking :: Need Bandwidth Traffic Measure By IP
May 25, 2011I 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).
Networking :: Removing All Bandwidth Limitations
Apr 25, 2010I 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.
Networking :: Reserve More Bandwidth For Some Domains
Jan 25, 2011Can 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 ......
Server :: Enable Buffered I/O For Increased Disk Throughput?
Sep 1, 2010How do I enable buffered I/O for increased disk throughput on Linux ?
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