similar to: ntop performance

Hey all, I had asked a question a little while ago about CPU usage being outrageous while using tc and a cbq qdisc. Ed was very kind and offered a few suggestions. One of these was to look at hashing. So after pounding away at it for about a week, I have a general understanding of how it works and have tried to implement it. Unfortunately, and quite obviously since I''m posting here, it

Hey there everyone, I appreciated everyone''s help so much in the last few posts I decided to post some more! :) We implemented our bandwidth management machine on the network last week and everything looked great. After looking at it today, anything past the machine is losing major packets and the latency is high. I''m using RedHat 9.0 on a Pentium 4 2.8ghz with 512mb of ram.

I installed ntop on a centos5.2 system (which got all yum updates a few days ago)... # rpm -q ntop rrdtool ntop-3.3.8-1.el5.rf rrdtool-1.2.28-1.el5.rf went through the password configuration when I start it, its erroring. # service ntop start Starting ntop: Processing file /etc/ntop.conf for parameters... Mon Nov 24 23:56:36 2008 NOTE: Interface merge enabled by default Mon

--------------------------------------------------------------------- Red Hat, Inc. Security Advisory Synopsis: Remote file access vulnerability in ntop Advisory ID: RHSA-2000:049-02 Issue date: 2000-08-07 Updated on: 2000-08-08 Product: Red Hat Powertools Keywords: N/A Cross references: N/A

Hey everyone, I had a question about the class id''s using the TC command. I''m using a command that looks something like this: tc class add dev eth1 parent 10: classid 10:$variable cbq bandwidth 200Mbit rate 512Kbit allot 1514 prio 5 maxburst 20 avpkt 1000 bounded That''s just an example. My problem is I''m guessing the $variable is not allowed to be anything

Hi all, Running CentOS 4.2 with the following conditions: [root at gatekeeper bin]# uname -srvmpi Linux 2.6.9-22.0.1.EL #1 Thu Oct 27 12:26:11 CDT 2005 i686 i686 i386 [root at gatekeeper bin]# uptime 07:54:41 up 31 days, 13:45, 6 users, load average: 0.00, 0.02, 0.00 [root at gatekeeper bin]# rpm -q ntop ntop-3.1-1.2.el4.rf [root at gatekeeper bin]# df -h S.ficheros Tama?o Usado

Hi, I want to do some analysis of NTOP data. Currently I have installed NTOP on Centos 5.1 and I am able to see some network data being graphed. But there is no documentation given whether NTOP is showing Network Throughput in MBytes or MBits for ex I am getting Throughput Min: 163.7k , Max: 3.0 M and Last 859.4k and there are some options like anomalia, upper,lower and trend (30min). Under

I don't know why I haven't signed up for this list before since we use CentOS all over the place. The list is very useful and it is good for me to participate and "give back" to the community. Anywho, I wanted to post this response to a thread that was created back in November 2008 about the ntop daemon failing to start. I'm currently setting up ntop as a NetFlow &

Hi, Can anyone please recomment an ntop alternative for me, which is more stable as well? I need to monitor all connections to and from a CentOS 5 server and ntop does it fairly well, but seems to crash at random times, and thus looses all the date prior to the crash. Cacti / MRTG only gives complete bandwidth usage on the given interface, but I need to know how much bandwidth goes where, and

Dear List, I am trying to limit some IP blocs with tc with following three step. # interface tc qdisc add dev eth0 root handle 1: cbq avpkt 1000 bandwidth 256kbit # class tc class add dev eth0 parent 1: classid 1:1 cbq rate 64kbit \ allot 1500 prio 5 bounded isolated # rules # download tc filter add dev eth0 parent 1: protocol ip prio 16 u32 \ match ip dst 10.0.1.0/24 flowid 1:1 # upload tc

Hi, Would it be sane to run ntop on the same box as Asterisk or better to mirror a LAN port etc? http://www.ntop.org/OpenSourceVoipMonitoring.pdf Thanks.

If you are running ntop on 5.4, what compile options? Use ports version? Or surgefile tarball? It makes a great security forensics tools, but I can't get it to stop segfaulting.Was wondering if anyone found a fix for it. -- Michael Scheidell, CTO 561-999-5000, ext 1131 SECNAP Network Security Corporation Take a vacation from spam: http://www.spammertrap.com

Dear List, Sorry for the dublicated email but I couldn''t get any answer. I am trying to limit some IP blocs with tc with following three step. # interface tc qdisc add dev eth0 root handle 1: cbq avpkt 1000 bandwidth 256kbit # class tc class add dev eth0 parent 1: classid 1:1 cbq rate 64kbit \ allot 1500 prio 5 bounded isolated # rules # download tc filter add dev eth0 parent 1:

Hi all. I have currently a task to implement a network traffic analyzer. Some years ago I've used NTOP for that purpose, I would also like to test some alternatives. Which alternatives can you recommend and why? Thanks ;) Best regards, Rafa? Radecki.

Hi, Are there rpm binaries for ntop for CentOS Linux version 5.8? Regards, Kaushal

Hey all, I recently read on a prior post as well as the FAQ that packets can be limited by mac address using the u32 filter. I attempted this and, while all the commands went through with no errors, it is not limiting at all. I''m attempting to limit all IP traffic to a specific destination mac address (00:12:3f:05:43:7f). Here is a quick rundown of the commands

I have a really basic question (I think). We have two boxes connected to a lan segment on a hub. One is a Windows box running "Show Traffic", the other is a CentOS 5 Linux box running "ntop". Both boxes should be able to sniff all of the traffic on that hub (not a switch). The Windows box does just fine, Show Traffic is able to display traffic destined for other boxes

I would propose to add " See also: `nchar' for counting the number of character in character vectors. " to the helpfile of length(), because it is rather difficult to find nchar() if one has only search terms as "length", "len", "strlen" in mind. Sincerly Wolfram Fischer

Hello ! I use Slackware Linux on a box for routing and SNAT for a small network: |eth0: 80.97.108.1| | | |eth1: 192.168.1.1| ..........| my network (192.168.1.0/24)| I search for a tool show-me on real time the trafic made by all/one IPon the interface eth1, somethings simple ; EX: 192.168.1.10 ........... x kbit/s 192.168.1.11 ........... y kbit/s 192.168.1.12

On Aug 2, 2011, at 10:28 AM, Duncan Sands wrote: >>>> Is it intended that "cleanup ty_1, ty_2" potentially be different to >>>> "cleanup ty_1 cleanup ty_2"? Perhaps this is useful for funky personality >>>> functions. >>>> >>> Yeah. One can basically interleave the catches and filters. But having two catch or two filter