I want to make an Ubuntu box a completely passive sniffer. As such, I want the NIC to never send anything or replying to anyone on the network, while still being able to capture the network traffic using pcap.
View 8 RepliesI am just checking in I know a lil about linux looking to learn more I know forums are the best way to go. I recently installed centos 5.3 on a machine we are going to be using as a squid server. Just a couple quick ?s and just wanted to pick your alls brains. What I am trying to do with the server is use it for caching to speed up our network t but I don't want to go around to all the our customers to setup their browser for proxy. What all is involved with making this server completely transparent. So the end user will does not need to enter in proxy information.
View 3 Replies View RelatedCan anybody have an idea of an ftp client code using raw ftp commands.
OR
Can anybody tell me how to turn off passive mode using raw ftp commands.
PASV is the command which turns on passive mode but there is no such alternative of active mode.
I have already tried using pasv_enable=NO in vsftpd.conf but that is not working.
I have a dns-323 linux device that's running pure-ftpd with SSL/TLS authentication. Pure-ftpd is sitting behind a linksys router with IP 192.168.1.51. Pure-ftpd is configured for port 8021 and passive port range 55562-55663. The linksys router is configure to forward port 8021 and the passive port range to 192.168.1.51.
From outside my network I can connect to the ftp server using the WAN address of the router. I'm using filezilla 2.2.32 as my client and I choose FTP w/ explicit TLS (no other option will connect). The client will authenticate successfully with pure-ftpd but once it sets up the passive data connection and tries to do a LIST of the root directory, there's a timeout. I'm assuming this is because the passive data connection is not working. In pure-ftpd, I tried changing the passive address that it reports, to be the WAN address of the router, but it did not make a difference. I included the log from filezilla below.
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I'm trying to build a firewall with IPTables: INTERNET <--------> (eth0) FIREWALL (eth1) <------------->FTP_srvI set all rules DROP by default.My rules for forwarding packet to FTP server:
#iptables -t nat -A PREROUTING -i eth1 -d $FIREWALL_EX_ADDR -p tcp --dport 21 -j DNAT --to-destination $FTP_ADDR:21
#iptables -A FORWARD -i eth0 -o eth1 -p tcp --dport 21 -m state --state NEW,ESTABLISHED,RELATED -j ACCEPT
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How can I get the NS Code for passive clustering in NS 2.34
View 3 Replies View RelatedI am using Cygwin with RHEL 4. Can anyone guide to configure it on passive mode.
View 2 Replies View RelatedI until yesterday when trying to configure the wireless (broadcom) on my laptop could browse the internet and install packages normally. but now none of the connections are working
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my proftpd setup will not do passive ports, reading the how-to on this page [URL] It gives the instructions on how to set up passive ports and masqurade but the example is using ipchains so before I start typing these commands in I would like to know if I need to change anything in the commands other then the ipchains command.
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will this work on debian 5.05 also how do I find out if I use ip filters.
Need to get a 2nd display for a PCMIG 1.0 passive backplane with an Advantech 6010 CPU [onboard video works fine], but NO PCI card will come up as the 2nd display! Tried 11 cards and most leave the cursor at the top corner when doing xorg-configure, but no that's all.
Has anyone gotten a 2nd display to work on a passive backplane system? Tried some newer cards, but they don't even allow the system to POST - perhaps because they are PCI 3.0 and the backplane is PCI 2.0 or 2.1?
i have a two node drbd cluster, while drbd1 is primary and drbd2 is slave i should make drbd1 slave and unmount drbd partition and make make drbd2 primary and mount drbd partition to see content on drbd2is it any way to automate it so as drbd1 goes down, drbd1 make itself primary and mount the partition?
View 2 Replies View Relatedtring to run an ftp server on default ports with port 10100-10199 as passive. Using vsftp. But the ports refuse to open what the heck am I doing wrong? see screen shot. oh using karmac, now.
View 2 Replies View RelatedIs this possible that a process running on a remote-host only inform nagios when some thing is wrong. Rather then nagios-monitoring-server checking through NRPE every so often. Reason is I want to add too many alerts in the application. And I don't want a whole list of ok messages.
View 1 Replies View RelatedI've got problems uploading files to a remote FTP server using passive mode with enabled SuSeFirewall2 (Using 11.2)
I've disabled Firewall and everything went ok. Why firewall disables or terminates OUTGOING connections to a remote FTP?
So after a quick look around the forums, I haven't seen anything on removing ndiswrapper. What I have done is removed ndiswrapper via synaptic. Now in order to start my wireless card I have to issue:
rmmod ndiswrapper
modprobe ath9k
ifconfig wlan0 up
Basically this is a pain. Does anyone know how to get rid of ndiswrapper completely and set things up to use ath9k automatically?
i need to completely remove drupal and reinstall it, i would also like to completely remove phpmyadmin and reinstall it.
View 2 Replies View RelatedI made some updates and rebooted (out of necessity due to an old, mysterious glitch that made my keyboard stop working, along with cursors in text and most menus) and my laptop's networking stopped working altogether. Trying to access my home's wireless network only got me a "disconnected - you are now offline" after a long wait, which has happened before, but A) never before right after a reboot, B) the wired connection didn't work either when I tried it, which has never happened to me, and C) this persisted after another reboot.
View 9 Replies View RelatedBefore I changed the faulty wifi card I installed Wicd. Incidentally it didn't remove Network Manager, a bug that's reported in Launchpad. With the new wifi working well enough with Network Manager, I used Synaptic to remove Wicid, or so I thought.I happen to be checking .xsession-errors and there's an error reported about wicid tray desktop. I removed it and no more errors appear.
After looking for advice here and on the web I used apt-get remove and purge yet a file search of wicd still finds 25 entries, in /etc/, /usr/ and /var/.Some are archives and some are logs but some aren't, why are they still there and can I clean things up?
Fedora 11 is completely unable to access the internet for some reason, and after some troubleshooting, I've determined the problem to my Motorola 2210 DSL modem. I know my connection is working fine, as it works perfectly in both Vista and 7. I've tried things such as grep 'Ethernet' /var/log/dmesg, filling in the information into the network settings manually, to no avail.
View 12 Replies View RelatedAfter an update in mid-February I can no longer get Network Managero run anyinterface. I tried downgrading ppp, but that did not help. I have tried to delete all devices, but there is no user interface from which I can do that. Network Manager does not appear in any system tray. I even did a complete remove and reinstall, to no avail.This is true on both 32 and 64 bit Fedora 12, and on laptops, desktops and VBox VMs.Here is what I see in messages.log:
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Mar 27 12:09:46 vmf11x64 NetworkManager: <info> Activation (eth0) Stage 4 of 5 (IP6 Configure Timeout) scheduled...
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I am using BSNL WLL (Wireless Local Loop) on my Fedora system to connect to the internet My modem is Huawei ETS-1201, I use wvdial The problem is that, on every linux distribution I tried, Webpages dont load or load incompletely randomly This happens most during peak net traffic. I tried to edit the /etc/ppp/options file to set my MTU and MRU to 576
But, It does not seem to be working. There is no such problem on Windows and I can connect flawlessly I takes several retries to connect to a site. I sometimes become frustrated with this and switch to Windows But as you all know, Windows is not the right OS for people who want more from their computers.
Below my specs:
Intel Core 2 Duo E8400
Intel BOXDG43NB
1GB DDR2 800MHz RAM
WD 320GB 7200rpm HDD
my laptop: Compaq F500 laptop with boardcom wireless card, everything was working fine this evening (6 hours ago from last use) but now...when i turn on my laptop at home, my wireless is gone.... tried the wireless switch on and off, on and off in the front panel of the laptop show nothing (LED light still shown as dim)I did restart, shutdown the laptop many times still gave me the same result.4G ram, running Ubuntu 10.04 x64 desktop ver.I use the default driver came with ubuntuand no i don't have ndiswrapper.
The hard drive is 320G which i bought it a week ago, install 10.04 desktop via upgrade from 9.10 (for some reason, cannot detect the 10.04 CD)The wireless was working fine all the time, just not when i tried to turn it on at home right now.the only way to get on the internet is via eth0 right now.Run "ifconfig -a" shows me
eth0 Link encap:Ethernet HWaddr 00:1b:24:2c:02:72
inet addr:192.168.1.139 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::21b:24ff:fe2c:272/64 Scope:Link
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I seem to have stumbled on a problem regarding internet connectivity. My web browser (Firefox or any other web browsers) can't completely load the desired webpages like yahoo.com or even google.com.But as I read different blogs in this forum, I have convinced myself that there is an internet connection.= when I ping different websites, Iseem to get good responses from those sites. Only when I need to browse the webpage do get no results.= ifconfig seems to respond well enough.= even "route" shows the IP my router/gateway correctly. The problem , I think, lies on the proxy settings or the DSN.
View 3 Replies View RelatedExactly the same computer have no network issues at all, when on windows. It is a fresh install of Ubuntu 10.04 LTS 64 bit desktop. I have installed the proprietary driver for my nvidia card.
My motherboard is Asus P8P67 rev 3.0 Using scp, I'm getting 100-500kb/sec, if I get a connection at all. I have tried 2 different switches (both working fine in windows, though). Network goes down completley every 2 min or so, and is gone for 30 sec.
Some output:
dmesg | grep eth0:
[ 1.265601] eth0: RTL8168b/8111b at 0xffffc90000676000, f4:6d:04:9c:7f:d6, XID 0c900800 IRQ 33
[ 2.773959] r8169: eth0: link down
[ 2.773974] r8169: eth0: link down
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After seeing a few articles on making a home router I thought "I'll have a go at that" as I've spare bits and bobs lying around. Now apart form some iffy wireless cards one major problem sprung to mind. Clearly there will be 2 NIC - 1 in and in my case one out. And that one has to be wireless. But I've yet to find a ready built one (is Smoothwall or the like) that will allow me to do this with a wireless network card in the machine.
Firstly is it doable as all the traffic in my house is wireless. Secondly are there any ready built distros that will handle it for me.
I have some industrial equipment I'm trying to reverse-engineer. It communicates from the main CPU to a controller via a serial connection. I want to hook into the serial connection and dump everything doing down that line to log file so that I can stare at the messages and try to figure out the protocol.
I could just plug the serial cable into my computer but I need the messages to continue going to the controller or else the rest of the system will error. So basically I need to tap into it.
My first thought is to use a laptop with two USB-Serial adapters. I could use a perl script to open both serial connections as files and send everything that comes in the one serial connection right back out the other serial connection, but also dump it to a log file. Will this even work? I can see that it will introduce some latency but I don't think that will be critical.
some of you might have experienced the network speed problem that occurs when ipv6 is enabled. So have I. I know about the common workaround of disabling ipv6, but recently I tested the new ubuntu live system, and the problem was gone with ipv6 being enabled.
Now my question is: Do you know what ubuntu is making different? I haven't found an explanation. Is there a better workaround than blacklisting ipv6?
Just installed the new version of Ubuntu and having problems. My Dell Vostro works fine and the he Internet also works fine after giving the machine the router pass-phrase however the Windows 7 network showing but I cannot open it. the 2 daemons for Samba are running ok and I am just na bit stumped with this one.
View 1 Replies View Relatedi have two computer first one is the main computer, he is connected to the internet throught DSL ubuntu 10.10 beta installed
the second is ubuntu 9.10, and i want this computer to connect to the internet of the first computer
they both connected to a B-FOCUS router 270pr but i dont want to make the router to be the one that connects to the internet i want the first computer will connect to the internet and the second will be accessing the internet of the first computer connection.
is there any problems with making adsl connection in ubuntu 10.10. Recently I've had ubuntu 10.04 and there was a problem with making adsl connectio so I was forced to you terminal in order to connect to internet. I'm asking you this because I'm planing to install Ubuntu again but if there is still connection problems then I wouldn't install ubuntu
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