How To Monitor Bandwidth/traffic Using Munin
Nov 21, 2007
Does anyone have a tutorial or instructions to show how to set up munin to monitor bandwidth/traffic utilization?
I have a VPS from a provider that has no monitoring tools, and I need something to monitor.
(The VPS uses the HyperVM software.)
I am using the CentOS version 4.x right now, and munin is already set up and configured with a basic install.
Anyone know how to add traffic/bandwidth monitoring? (Ideally, it would monitor all active ports.. but I only really need it to monitor port 1194 for openVPN software.)
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Nov 15, 2007
What traffic monitor would everyone recommend for sites that have as many as 5,000 to 10,000 hits an hour?
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Jun 30, 2008
I want to be able to monitor (with statistic) and cap traffic on 3+ servers.
how is this done best?
I was thinking of somekind of switch or server set inbetween the servers and the internet monitoring and keeping data on the traffic use etc.
but what do you do?
and how to make such a monitor redundant so if it fails the network is not cut off from the world?
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Apr 2, 2007
Don't know if this is the right place to ask for this but here goes.
I have a 20U rack space and i use 4U of this space (1U + 2U servers and a 1U switch).
There is a 20Mbit internet connection on a 100Mbit network.
But here comes my problem, some friends have there servers in my rack space to, There is 12 servers that are my friends and i want to know how much traffic they use.
I want to know how many GB traffic they use to i can charge them (they don't pay right now).
2 of my friends servers must max take 50gb traffic!
Is there a switch that can do theys two things?
Show traffic and limit traffic?
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Jul 22, 2009
I would like to monitor traffic on IP based on my debian server. I have 16 IPs on my server? Is there any good tool or any tool which gives GUI display?
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Jul 1, 2009
I have a windows 2003 vps and I need way monitor how much traffic I make per month. I believe I'm getting close to my quota and I need to measure it.
I've seen some nice free programs that claim to work on windows 2003 server but the fact is they don't use a service so they only work while the GUI program runs, which is obviously silly for a server!
What do you guys use for this? I mean other then web traffic tools since most of my traffic is not HTTP!
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Aug 8, 2008
how you monitor the traffic of each individual VPS on your dedicated servers?
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Aug 7, 2008
how to monitor the traffic usage of the VPS's on a dedicated server? We have OpenVZ & XEN VPS's
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Oct 7, 2009
I have a windows vps and I want to monitor my bandwidth. How can I do this? I tried using a program called DU Meter but it's counting bandwidth on all users on that node and not mine =[
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Aug 6, 2008
I know cacti / MRTG can produce traffic graphs, but how you actually get Cacti to graph the VM's on a physical server?
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Jul 10, 2007
Does any one know a bandwidth monitor that shows me stats and which programs or Ports and or Servers are using bandwidth and how much they are using in real time?
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Mar 29, 2009
How is it possible to monitor the data used (in and out) for each node in XenServer?
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May 23, 2007
I will be setting up a LAN at home where there will be a few PCs connected to the network.
My idea is that I will have linux box where I will route all the traffic through to monitor it. I was wondering what would be a free solution to go "hardcore" on this. When I mean hardcore, I really mean hardcore. I want stats, packet shaper etc.. It would be a learning process for me too. The only thing is that alot of solutions out there are more enterprise and expensive.
Anyone here use or know a good solution? I was told I could use m0nowall on freeBSD. Another thing I was looking at would be Squid. But to be honest I'm not sure.
Whats a good free software that can do this? Perhaps something really cheap if there is a cost involved.
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Sep 28, 2006
I'm working on setting something up for monitoring my bandwidth/traffic on multiple interfaces. I have setup interface aliases so I have eth0, eth0:0, eth0:1 and the issue I'm running into is that it seems snmp cannot tell the diff between the aliased interfaces. I've found references in the cacti forums of using ipchains rules to track the bandwidth, but I've not found a good howto that explains what I need to get going on this.
Any clues/hints?
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Mar 3, 2008
Is it possible to monitor the used bandwidth of every virtual machine on a vmware server?
Cause that is something i would like to monitor...
I know it must be possible somehow.. but can anyone point me in the right direction?
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Jul 14, 2009
if anyone knows of a good, free tool to monitor how much bandwidth a Windows machine uses monthly. I saw FreeMeter, but I don't know how well that will work to use for a whole month at once.
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Jun 27, 2007
I currently have a windows 2003 server box which is being used only for huge file downloads (Media server). Wanted to know if there is some sorta program or script that lets me check the current connections and what speed each connection(ip) is downloading at?
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Dec 11, 2008
I already have a UNIX server as the gateway/firewalls for few servers. How do i build an MRTG graph to monitor the bandwidth usage for each IP?
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Oct 16, 2009
I am just in the process of setting up a new rack for some lower end clients.
At present we have both a local (National) and international traffic split. We need to offer our clients a 100/100 port speed on the national route/bgp/ip range but only a set amount on the international range. The port speed/throughput for international traffic would need to be as low as 128k/128k.
I would also like to have the flexibility to impose data limits on the international link as apposed to bandwidth shaping.
I have a spare Cisco 3750G-48TS I was hoping to utilize for the main switch on this rack (SFP Ports for multiple uplinks, National/International)
Hardware/Server wise what will be the easiest way to achieve this?
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Mar 16, 2007
I have a site that has become very popular and I feel that I will soon outgrow my hosting plan. The site uses sub-domains in a fashion similar to About.com. In other words, I have different sites under the umbrella of the main domain. How does a site like About handle this issue? Forgive me if this is an uneducated question, but, since I can't host the sub-domains under different accounts and relieve some of the bandwidth burden how do I handle the bandwidth issue? It's not like I can have one account dedicated to one sub-domain and another to the other sub-domain or can I? Also, can anyone recommend a good hosting plan for popular sites? I have 60gb of transfer right now, but I want to explore other options while there is still time.
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Oct 7, 2008
Should excess bandwidth charges apply for traffic that occurs between 2 nodes on a lan?
We have 2 self service dedicated servers. One of them runs our production environment and the other is used for development and backups. We have a cron job which copies backup data from the production server to the development box. A few months ago a bug in our backup script resulted a $700 excess bandwidth charge from the hosting provider.
An analysis of the network stats showed this to be $350 for outbound traffic from the production server and $350 for inbound traffic to the development box. Internet traffic for the period in question was negligible. I disputed the charge but was unable to obtain a refund. I'm trying to decide whether to switch providers as a result.
Based on the information listed above what do you think most hosting providers would have done:
1. Exactly the same. The terms of service make the customer liable for all excess bandwidth.
2. Offered a $350 refund to avoid billing twice for the same traffic.
3. Refunded the full amount because the excess traffic did not touch the public wan.
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Jan 26, 2008
I have WHM 11.15.0 cPanel 11.17.0-R19429
FEDORA 4 i686 on standard - WHM X v3.1.0
/var keeps getting filled up with munin logs. Do I really need these logs? The server already had munin when I got it so I don't know how it was installed.
Can I disable it? I looked at the cron tab, and I don't see munin, but when I did chkconfig --list I found:
munin-node 0: off 1: off 2: on 3: on 4: on 5: on 6: off (spaces added because it made smileys)
How do I disable it?
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Feb 20, 2007
How to disable from debian server autorun munin script [url] [munin, munin-update, munin-node processes]?
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Feb 11, 2008
if you can dump the actual data used to make the graphs in munin, or are the graphs the only way to view the data?
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Jun 25, 2008
I tried to install cacti, somehow it didn't work out so i decided to install munin. But when i choose munin from plugins list it starts to install than it says
Starting Munin Node: [ OK ]
Can't locate RRDs.pm in @INC (@INC contains: /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.7/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.6/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl/5.8.7 /usr/lib/perl5/site_perl/5.8.6 /usr/lib/perl5/site_perl/5.8.5 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.7/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.6/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.5/i386-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl/5.8.7 /usr/lib/perl5/vendor_perl/5.8.6 /usr/lib/perl5/vendor_perl/5.8.5 /usr/lib/perl5/vendor_perl /usr/lib/perl5/5.8.8/i386-linux-thread-multi /usr/lib/perl5/5.8.8 . /usr/local/cpanel/3rdparty/lib/perl) at /usr/share/munin/munin-graph line 225.
BEGIN failed--compilation aborted at /usr/share/munin/munin-graph line 225.
Install Complete (munin 1.2.4)
Done
I did some googling about the error and it is because rrdtool is not installed.
Actually i installed rrdtool 1.3.0 from its website it was in /usr/local/rrdtool
Anyway i clicked install a rpm from whm and choose rrdtool.i386
root@server # rpm -qa | grep rrd
rrdtool-1.2.23-6.fc6
But it is still giving error above when i try to install munin
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Nov 4, 2008
Munin was running OK on my cPanel server until yesterday when the graphs stopped updating themselves. I attempted a "/usr/share/munin/munin-update --force-root" which did nothing. Then I uninstalled and reinstalled munin on the cPanel plugins screen and now its running but all the graphs are empty
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Apr 18, 2008
I use Munin to monitor the health of our servers, I can tell by looking at the graphs there's nothing to worry about, however, I'm struggling to baseline acceptable performance.what would be classed as 'normal' output for some of the more relevant munin graphs.
I've been looking at the Apache* modules and this is the output from one of our servers:
average of: 300 accesses per minute, 6 busy servers and 4.10MB a minute volume
max of: 1400 accesses per minute, 81 busy servers and 51MB a minute volume
This is a dedicated box running one site.
We have another box that is running approximately 30 sites
average of: 30 accesses per minute, 1 busy server and a 500K a minute volume
max of: 322 accesses per minute, 11 busy servers and a 4MB a minute volume.
These servers are pretty much the same spec, dual core 64Bit, 4GB of ram, two SATA disks in RAID1.
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Aug 13, 2009
I'm checking my CPU/Memory/MySQL Usage and I'm seeing that something called Munin is running at 54%. That is apparently the average for today. Can anyone give me any insight as to what this is?
Wikipedia classifies Munin as a network monitoring application. I don't think it should be using this much processing.
It appears that I may have enabled this plugin when I rebuilt my apache using EasyApache. Are there any big benefits to this? Looking at the graphics at first glance it doesn't look like there is. but then again, I'm not that knowledgable about this stuff.
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Dec 5, 2008
I have Munin running on my Centos 5.2 box, but would like the 95th percentile calculations. I have found this page for an add on:
[url]
where to put this code and/or how to install it?
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