similar to: ipsec for linux 2.4 eventually made easy?!

I have a CentOS 4 server at home where we store all our data, I wanted to get some idea of the amount of traffic going into and out of the server by protocol so I installed IPtraf.. When I run it from an ssh session it looks fine but when I run it directly on the server console its doesn't look right at all.. It doesn't seem to layout correctly.. Is there something I need to do

Hi, I have the following setup. Two linux systems with two [test] external interfaces encrypted with ipsec [transport]. Two gre tunnels that pass 10.200.0.0/24 and 10.200.1.0/24 network traffic. Testing the balanced tunnels I would setup iptraf on one and ping from the other. The results would be as expected; traffic would be split between the two interfaces. Testing with an ftp transfer of

Hello Everybody, I have configured a Linux box that does traffic shaping. Its working wonderfully fine, just as expected...Now i want to measure the bandwidth consumed by each of my hosts....But I dont want SNMP to run on all the hosts[as required by MRTG] I used iptraf on my linux box, but it only measures the bandwidth on interface basis only.... I tried installing traffic-vis, its not working

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

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

ok .. a use iptraf, but iptraf show my evry connection from computerX: 84.135.15.81:4899 > 163 7940 --A- eth0 ? 82.77.210.7:3475 > 212 323323 -PA- eth0 ? 62.231.96.133:80

Hi All, I am wondering what tools are available in CentOS 5.5 that would allow me to measure incoming and outgoing network speeds? My new website seems to be getting a lot more traffic that I had anticipated off the bat and I would like to measure resource usage to ensure it is keeping up. I know that top only measures CPU Best, -Jason

Does anyone know of a way to track TCP/IP traffic by TCP/UDP port and/or by process/daemon with CentOS? I know a variety of ways to track it in total (e.g., ifInOctets & ifOutOctets with SNMP), but I'm not sure how to be approach seeing traffic by application, port, or process. One option would be to write something that would sift through different stuff for each daemon (for example,

Hi, I have the following setup. Two linux systems with two [test] external interfaces encrypted with ipsec [transport]. Two gre tunnels that pass 10.200.0.0/24 and 10.200.1.0/24 network traffic. Testing the balanced tunnels I would setup iptraf on one and ping from the other. The results would be as expected; traffic would be split between the two interfaces. Testing with an ftp transfer of

Hi, I have the following setup. Two linux systems with two [test] external interfaces encrypted with ipsec [transport]. Two gre tunnels that pass 10.200.0.0/24 and 10.200.1.0/24 network traffic. Testing the balanced tunnels I would setup iptraf on one and ping from the other. The results would be as expected; traffic would be split between the two interfaces. Testing with an ftp transfer of

We have a situation here that is a real mystery. Our MRTG on our outgoing router and a firewall server that protects our web servers is showing a spike every six hours. I can't find the server behind the firewall that is generating such an extreme amount of packets, even though I've looked through the crontabs of nearly all servers, performed "ps" variations, and other

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

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 &

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

Hi ! I´ve been using the wonderful wondershaper from chapter 15.8 of the LARTC Howto for some time. It´s really wonderful. Actually, I use the version from http://freshmeat.net/projects/wshaper/?topic_id=87 Now I tried to put some hosts to low priority, and it doesn´t work. The traffic is splitted equally between the noprio and the other hosts. Is this because I use ip masquerading, and all

[ sorry for cross-posting this to newbies and users, but I''m a bit desperate to get this resolved ] This is strange... I had this working before without any problems, and recently we started to have some odd issues. I can''t be sure exactly what has changed as I''m unfortunately not the only person with access to the server. {sigh} The problem is that I pretty much

Does anyone have any recommendations for network monitoring systems that work with CentOS 3 or 4? thanks

I was trying the following setup with IPIP tunnels, one that used to work through another ISP, but no longer... Internal network | Linux box 1 (kernel 2.2.24) iif=10.0.0.1, extf=a.b.c.d, tunf=172.16.0.1 | |local metropolitan network | Another Linux box 2 (kernel 2.2.17, or 2.4.19, same result) iif=irrelevant, extf=x.y.z.v,

I am using HTB+IMQ on an Ethernet bridge and tc for statistics reporting. I am finding that tc reported rate is about 5-10% less than that reported by IPTraf for the same traffic. Has anyone observed this before? Which is more accurate? Rajesh

Dear Mailing list, I have a Dovecot v2.2.9 server that authenticate against a Openldap server. I want to configure Dovecot to use TLS for LDAP authentication. I have tried to fetch/send emails using Thunderbird: - IMAP succeed to fetch mail - SMTP failed to send mail The Dovecot server produce the following log : Jun 29 08:44:00 mail postfix/submission/smtpd[634]: connect from