Linux Networking

Dynamic DNS
I have a dynamic DNS that a friend of mine set up for me a few years ago. Unfortunately, my friend passed away, and I have been unable to find any resources for modifying the IP information contained within. The system is FC 4, and is running very well - however I have migrated the site that uses the dynamic sys... 10 Jul 2008 13:24

Telnet connect fail with IP6
HI Anyone know why I get this with IP6? I'm running Suse 10.3. $ telnet fe80::21a:a0ff:fe64:3ebd 4000 Trying fe80::21a:a0ff:fe64:3ebd... telnet: connect to address fe80::21a:a0ff:fe64:3ebd: Invalid argument Yet if I use ::1 it works fine. $ telnet ::1 4000 Trying ::1... Connected to ::1. Escape charac... 11 Jul 2008 07:52

IPSec racoon/cisco problem
Hello. on a linux machine (kernel 2.6.16.21) i installed ipsec-tools-0.6.5-10.6 to create a VPN IPSec to a router CISCO. System works fine but I have a problem. Through VPN a client reachs a web server. Sometime, but not everytime, transfer of a 10Kbytes file requires about 25/26 seconds (bandwidth is not a... 10 Jul 2008 08:14

Debugging bridge behavior
I have a bridge between two ports where a packet comes into one port destined for the other, but never seems to reach the bridge. I am trying to implement a VPN test network using VirtualBox hosting various VMs on an x_64 Fedora 8 host running on a Xeon. One VPN device is a bump-in-the-wire device configured wi... 11 Jul 2008 05:50

Linux Passive FTP Configuration
Hello, I am using RedHat Legacy Linux 7.2 on each of two servers. Server A intends to invoke an FTP client to transfer a file to/from the FTP daemon on Server B. The FTP daemon is running proftpd 1.2.1. The FTP file transfer must be done in passive mode, not active mode. Passive FTP is problematic. The... 11 Jul 2008 13:01

arping doesn't work
I got an email from a user saying that he used to be able to (a long time ago) arping -I eth0 00:1a:64:c2:cg:5a and get the IP address of the MAC. Now, he can't. I've tried on a couple of different Linux systems, and it doesn't work for me, either. Anyone know what's up with this? The man page doesn't help... ... 11 Jul 2008 04:49

rsh; linux to windows
Have app and env that must run on my XP box. Is there a way to remote from linux to xp? I have a static address. Thank you. ... 9 Jul 2008 14:44

problem installing NIC
i use mandrake linux 2.4.8-22mdk.while compiling driver source for Dlink DFE-520TX PCI adapter there is a error given kernel sources not configured missing version.h. stop following the " make install" command ... 9 Jul 2008 06:30

Detecting unused IP addresses in a subnet using ping?
Hello All, Is there a way to find all the unused IP addresses of a particular subnet using ping command? If yes, what is the parameter to be passed to the ping command? This is for a enterprise intranet. For example, the subnet is 16.138.189 and I want to find some unused IP adddresses in this subnet to use... 10 Jul 2008 03:08

OpenVPN tun adapter
I made my first connection using openVPN on my local network. I used one XP machine as a server and an Ubuntu machine as the client, all went fine and I was able to connect a VNC viewer on both machines to view the other. Connection was made by command line. Trying exactly the same connection the following... 18 Jul 2008 11:19