I have a dual boot machine with FC 5 and also WinXP. When first installed, FC5 login screen shows the Correct IP address/Computer name.

Now, many of the linux programs I have installed depend on the IP address/computer name not being changed. When forced to occassionly use the WinXP, it is NOT possible to set the FULL IP address/name.

Then back to Fedora linux bootup time after having been on windows, and the fun begins. All of the sudden, the programs that depend on the accurate IP and names no long can find the correct info because winXP changed IP and names. Usually truncating or changing it completely.

Clamav depends on adresses that do not change. So do some of the other programs installed on the linux side. Is there some way to correct this from happening or preventing winXP from screwing things up?

Please help, and thank you for any help that can be given.

Setup a static ip address under Linux and Windows? For example, 192.168.0.2 for both. That way it will never change.

I have never heard of a function of XP that can affect the Linux system on the same box. Something is going on with the network.

How are you connected to the network? That is, are you connected to a DSL or cable modem directly or through a router, or are you using dial-up?

If you are on a router, is it set to provide an IP address (DHCP), or are you using a fixed IP?

How are you checking the name of the computer in Linux? My /etc/hosts file has the following in it:

127.0.0.1 chuck.cfgaf.com chuck

Try this:

cat /etc/hosts | grep 127

See what you get.

Good luck

C

First, apologies to all for taking so long to get back to you.

Do you mean that I can or should select any arbitray ip address?
'Cuz windows has a limit for the size of the machine name.

Thankyou all for your help.

This is what I got when I grepped it.

[harold@71-227-184-165 ~]$ cat /etc/hosts | grep 127
127.0.0.1 localhost.localdomain localhost
127.0.0.1 c-71-227-184-165.hsd1.or.comcast.net


I have it set up as computer/ethernet to cable modem, to the internet. Using seamonkey browser. Setup is 'DHCP' But the cable company does not change that true IP address.

But windows rewrites parts of clamav, amavisd, http, and a few others and then the startup is royally screwed up. Because suddenly fedora can not find the localhost.localdomain so it assigns the changes that windows assigned in the mbr


Harold

i heard that some other peoples are having similar problem with ethernet. and their solution was that do not restart your computer when switching op systems, instead shutdown the pc and then run the op sys you want.

It's nearly impossible for Windows to rewrite parts of clamav, .... It might reformat your whole Linux partition by accident.

Maybe Windows sets certain registers in your network card and without a power cycle they may still be there when you boot Linux. This might even be a Linux driver bug (not resetting stuff to a known state).
As said by riizikaz, shutdown the machine before switching to Linux. If that does not help, powercycle. If that does not help, come back here.

Can you indicate what exactly changes? IP address? Hostname? clamav configuration file? etc etc etc

You use dhcp. Don't take for granted what the ISP says. Check the IP address after a boot to linux with the command ifconfig. Next boot to windows and check the address with ipconfig. Next back to Linux and check again.
Does the address change?

Have already tried the power off and then switch to the next os. Even to the point of leaving the computer power cord unplugged from the wall. That works sometimes.

What gets changed is some of the entries in .conf files for some and then some of the bootup files for others. Linux is booting, loading, and then says can not find address < original address > using 127.0.0.0 instead. And then several programs start NOT functioning correctly. Will try some of the other suggestions and let you know what happens.

As said, first verify IP address after each boot. I have a dual boot here in an (MS) network. Under Windows, it always gets the samne address from the DHCP server. Under Linux it varies, usually the same as under windows but recently I had an occasion where that was not the case.

I have 7 OS on my single HDD.(one of 'em is window)

took me days to examine the CONF

At FEDORA v1 time I found out that I loose 3c940 module after reboot. Could be win messing the hardware.

I havent found any problem since.

Dunno later.....

Dual Boot Machine Fedora 5 / WinXP, XP messes up the IP addressing:

windows shows this:

windows ip configuration

Ethernet adapter Local Area connection:

Connection-specific DNS Suffix . : hsd1.wa.comcast.net

IP Address . . . . . . . . . . . : 71.227.184.165

Subnet Mask. . . . . . . . . . . : 255.255.254.0

Default Gateway. . . . . . . . . : 71.227.184.1

This was the same all three times, but it did change the machine name on the last two cycles.

Absolute Off was also tried but gave same results


On the fedora Core 5 linux side this is what was given after command of ifconfig:

eth0 Link encap:Ethernet HWaddr 00:0D:61:31:0D:2D
inet addr:71.227.184.165 Bcast:255.255.255.255 Mask:255.255.254.0
inet6 addr: fe80::20d:61ff:fe31:d2d/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:27618 errors:0 dropped:0 overruns:0 frame:0
TX packets:511 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:5904936 (5.6 MiB) TX bytes:70628 (68.9 KiB)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:3462 errors:0 dropped:0 overruns:0 frame:0
TX packets:3462 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3519196 (3.3 MiB) TX bytes:3519196 (3.3 MiB)


primary DNS: 68.87.69.146
secondary DNS: 68.87.85.98

The upper two lines showed up on restarts 2 and three, and windows had changed the computer's name
AGAIN.

This is so frustrating. I may back up somestuff, strip the drive and reinstall it again.

Your IP-address does not change, so that's a good thing (it also excludes a possible Linux bug). How do you check your computername in Linux?

Suggestions to solve the problem
1)
Configure all your programs to use the ip-address and not a computername.

or

2)
Add an entry in the file /etc/hosts and configure the applications to use that name. If a program tries to resolve a computername, one of the places where it will look is in /etc/hosts and it will then use the associated IP-address.

PS 1)
The computername is something that's stored somewhere 'in the OS'. In linux it's stored in /etc/HOSTNAME (as far as I can figure out). In windows, it's probably somewhere in the registry (not sure).

PS 2)
I still don't believe that Windows changes it in Linux.