Linux-Misc Digest #8, Volume #25 Sat, 1 Jul 00 11:13:02 EDT
Contents:
Re: How to make a copy of a start up disk. (Nikimal)
LILO + NT_Bootloader 5 (Leonard Lin)
How to uninstall sendmail from booting sequence!! (Arun Mahajan)
gtk (Ian Mortimer)
Re: 64 MB RAM shown instead of 128 (Robert Heller)
Re: Need clarification: what really is 'MBR' and what is 'BOOT SECTOR'? (Robert
Heller)
Mail and Web server - Any Distributions more secure than others? ("Ashley Heath")
Re: Linux Server Security ("Leon en Michael")
tape backup with dd (Christian Eriksson)
Build symlinks error (David Kirkpatrick)
Re: web based useradd function ("Ashley Heath")
Re: whereis kerneld on RH 6.2? (Tim Holmes)
Re: gtk ([EMAIL PROTECTED])
Re: Linux Server Security ("Scippie")
Re: Linux Server Security ("Scippie")
----------------------------------------------------------------------------
From: Nikimal <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.help
Subject: Re: How to make a copy of a start up disk.
Date: Sat, 01 Jul 2000 09:59:37 GMT
In article <mpC35.28928$[EMAIL PROTECTED]>,
[EMAIL PROTECTED] (Rob Kroll) wrote:
> >I do have a start up disk right now but I would like to have another
copy
> >for back-up. Can anyone please help me?
> Two ways of doing it: you can create a new boot disk, or you can
duplicate
> an old disk....
>
> To create a new disk, use the mkbootdisk command. Check the man pages
for
> more depth.
I've tried using that option ("mkbootdisk 2.2.9-19mdk") and it seemed to
go okay. However, when I try to boot up under rescue, it gives me the
following error just after it has prompted me for the RAM disk:
"Kernel panic: no INIT found. Try passing INIT= to kernel."
How would I go about fixing this? I've tried copying my /etc/inittab
file to the floppy. I've also tried setting the default runlevel to 1 as
as well as copying the /etc/rc.d/, /etc/rc.d/rc0.d/, /etc/rc.d/rc1.d/
and /etc/rc.d/init.d/ directories over. However, none of these seem to
make any difference.
I can vaguely recall getting the same error once when I tried to boot
from my hard drive and I ended up hitting a brick wall and having to
reformat the partition and reinstall the whole OS.
Sent via Deja.com http://www.deja.com/
Before you buy.
------------------------------
From: Leonard Lin <[EMAIL PROTECTED]>
Subject: LILO + NT_Bootloader 5
Date: Sat, 01 Jul 2000 13:19:14 +0100
If someone is able to answere me that question, it would be very great.
Problem is:
I tried to make a multi boot compuputer with NT5 and Linux.
As far as I know. NT-Bootmanager is not able to boot LILO. Except you
copy the lilo into a file,
and add that file as new Boot-entry in the NT-Boot manager.
But I want to evade that file entry.
I've got a home computer on which lilo is installed in the MBR.(as
usually)
and the lilo boots-up the NT-Bootmanager which is on /dev/hda1.
That works wonderful. It's just so, that NT-installer installed the
NT_Loader automatically. Into
/dev/hda1 without any handwork. I nead something similarly on by second
PC. How could I repreduce
such a configuration like that.
LILO->NT
or NT->LILO(/dev/hdb1)
I think the best way is to set up the NT-Loader into /dev/hda1 but how
can I manage that?
Or an other solution without that lilo-dump-file
Sincerely. thanks in advance.
Leonard Lin
PS: If possible send a copy to
[EMAIL PROTECTED] or [EMAIL PROTECTED]
--
Leonard Lin
M�llerwis 21
CH - 8606 Greifensee
Switzerland
Phone: +41 (0)1 941 40 53
Work: +41 (0)1 430 54 50
mobile: +41 (0)79 416 01 07
Email: [EMAIL PROTECTED]
------------------------------
From: Arun Mahajan <[EMAIL PROTECTED]>
Subject: How to uninstall sendmail from booting sequence!!
Date: Sat, 01 Jul 2000 11:30:04 GMT
Hi,
I've installed Linux for the first time and while experimening I think i
disturbed some settings and now it stops for a quite long time when it has
to start sendmail services at the time of booting. Is there any way of
removing this service from the boot?
regards,
Arun
--
Posted via CNET Help.com
http://www.help.com/
------------------------------
From: Ian Mortimer <[EMAIL PROTECTED]>
Subject: gtk
Date: Sat, 01 Jul 2000 13:14:02 +0000
hi guys,
I'm trying to make a gtk interface to a stepper motor and I was
wondering if anyone new of some good sites with example code (or hints)
for sending bytes of information to the serial port with a button press
? (eg click "left", send "L" etc.)
I have a 16C74 stuck to the RS232 port waiting to do all the work and
I've got the v1.2 tutorial from gtk.org but I just can't see how to do
it !
Rgds,
Ian.
------------------------------
From: Robert Heller <[EMAIL PROTECTED]>
Subject: Re: 64 MB RAM shown instead of 128
Date: Sat, 01 Jul 2000 13:20:19 GMT
[EMAIL PROTECTED],
In a message on Sat, 01 Jul 2000 04:37:43 GMT, wrote :
g> When I try the free command, the memory shown is only 64 MB whereas I
g> have 128 MB. I am running kernel version 2.2.14 Linux Mandrake 7.0.
g> Is there anything I can do about it.?
Add the line:
append "mem=128M" in your /etc/lilo.conf, re-run lilo, and
reboot.
I believe this is a problem with your BIOS or something. This
should also be in one of the FAQs somewhere. Yep found it:
(from /usr/doc/FAQ/txt/Linux-FAQ on my RedHat 5.2 box (2.0.36 kernel):
1.8 How much memory can Linux use?
A number of people have asked how to address more than 64 MB of
memory, which is the default upper limit. Place the following in yo
lilo.conf file:
append="mem=XXM"
Where "XX" is the amount of memory, specified as megabytes, for
example, '128M'. For further details see the lilo manual page.
-- I know, this is out-of-date -- newer kernels don't *normally* have
this problem, but I understand that *some* (older) BIOS's have special
problems, so this still applies.)
g>
g>
g>
g> Sent via Deja.com http://www.deja.com/
g> Before you buy.
g>
--
\/
Robert Heller ||InterNet: [EMAIL PROTECTED]
http://vis-www.cs.umass.edu/~heller || [EMAIL PROTECTED]
http://www.deepsoft.com /\FidoNet: 1:321/153
------------------------------
From: Robert Heller <[EMAIL PROTECTED]>
Subject: Re: Need clarification: what really is 'MBR' and what is 'BOOT SECTOR'?
Date: Sat, 01 Jul 2000 13:20:20 GMT
Jimmy Navarro <[EMAIL PROTECTED]>,
In a message on Fri, 30 Jun 2000 21:48:07 -0700, wrote :
JN> Villy Kruse wrote:
JN>
JN> > On Thu, 29 Jun 2000 15:17:42 GMT,
JN> > Rod Smith <[EMAIL PROTECTED]> wrote:
JN> >
JN> > I also read some complaints that if you wipe out all linux partitions
JN> > and install NT then it was "imposible" to get rid of the lilo prompt.
JN> > Then other people complain that when they do a win98 upgrade then
JN> > the lilo prompt disappears and they can no longer boot linux.
JN> >
JN> > We are still confused, arn't we.
JN> >
JN>
JN> If you wipe out all Linux partitions you might not even able to install NT at
JN> all until you boot MS-DOS and 'fdisk /mbr' then the LILO prompt goes away. I
JN> also had NT as FAT at /dev/hda and all Linux at /dev/hdb, /dev/hdc. I remove
JN> the two drives but retained the NT drive I couldn't boot at all until I booted
JN> with MS-DOS emergency disk and 'fdisk /mbr'. This made me convinced that NT
JN> does not or can not update MBR nor whack LILO, contrary to some claims.
The NT install updates the MBR *if and only if* you tell it to format
it's C: drive as NTFS -- it needs to because most BIOS's don't know
about NTFS. Telling NT to format C: as FAT16 does not do this -- NT
installs its boot loader as a plain MS-DOS type executable -- the system
actually starts to boot into MS-DOS (just enough to run the boot loader
/ menu hack). If NT is installed with C: formatted as FAT16, it behaves
as if it is being installed on top of MS-DOS (and if you really install
NT on top of MS-DOS (and/or Win3.11 or even Win9x), it will include a
boot option to boot to the lower-end OS(es)). In this latter case it
assumes that the MBR is 'clean'. At least this has been my (very
limited) experience.
Win98 tends to 'clean out' the MBR if it does not understand it (i.e.
the MBR contains 'lilo'). Some BIOSs with boot sector virus detection
will complain that lilo is a boot sector virus -- I don't know if this
'feature' is used by *any* of the Win* installers in any fashion.
JN>
JN>
--
\/
Robert Heller ||InterNet: [EMAIL PROTECTED]
http://vis-www.cs.umass.edu/~heller || [EMAIL PROTECTED]
http://www.deepsoft.com /\FidoNet: 1:321/153
------------------------------
From: "Ashley Heath" <[EMAIL PROTECTED]>
Subject: Mail and Web server - Any Distributions more secure than others?
Date: Sat, 1 Jul 2000 14:31:19 +0100
Are any Linux distributions more secure than others or better suited for use
and Web and Mail servers?
So far I have looked at Suse and Redhat, but any recommendations welcome.
TIA,
Ash
------------------------------
From: "Leon en Michael" <[EMAIL PROTECTED]>
Subject: Re: Linux Server Security
Date: Sat, 1 Jul 2000 15:42:52 +0200
yes....you can be hacked.
I should turn off the Telnet-server from all host exept the one from wich
you telnet into your server.
If you do that and use random passwords for your FTP-server, your pretty
safe.
Leon
Scippie <[EMAIL PROTECTED]> schreef in berichtnieuws
i_h75.39908$[EMAIL PROTECTED]
> Hello,
>
> I have a cable-connection to the internet and I installed a computer with
> Redhat Linux 6.2 to make that internet work on more computers. I also
share
> some directories and I have a telnet & ftp server running.
> I don't work on that computer, it stands there, alone in a place where
even
> I almost never come. So I don't use it to surf or anything, just a
server...
>
> Now my question is... can anyone that has my IP number hack the machine ?
> (please don't prove it, you probably already know my IP number), and what
> can he mess up ?
>
> I never log in on the computer locally, just sometimes (for a couple of
> minutes to manage the shares) via a telnet session.
>
> Anyway, I've run Win2k server on that computer (P200MMX,64Mb) and it
sucked
> ! 10 minutes to boot, 3 times a day reboot, ... . Now I run Redhat on that
> computer and guess what ????? No reboots since placement in the cabinet,
> booting in 2 minutes, and I noticed that my HUB has much less network
> congestions... Is this just a thought ? Or does Linux handle the network
> better ?
>
> Thank you,
>
> Dirk.
>
>
------------------------------
From: Christian Eriksson <[EMAIL PROTECTED]>
Subject: tape backup with dd
Date: Sat, 01 Jul 2000 15:48:15 +0200
I've failed in writing a backup back to disk from tape with dd.
I'm running Red Hat 6.0 on Intel and I have a HP Colorado 14GBe
tape drive attached to the paralell port. What I've done is the
following:
First I wanted to backup my primary slave drive. From linux I did
# dd if=/dev/hdb of=/dev/npt0
2504880+0 records in
2504880+0 records out
This took some time and as I got the prompt back I assumed the backup
operation to tape was succesful and I did not verify it in some other
way. I then wanted to write it back so I did
# dd if=/dev/pt0 of=/dev/hdb
0+0 records in
0+0 records out
and as you can see, it failed. Can someone help me here?
Thanks in advance!
/Christian Eriksson.
------------------------------
From: David Kirkpatrick <[EMAIL PROTECTED]>
Subject: Build symlinks error
Date: Sat, 01 Jul 2000 13:55:17 GMT
Hi,
I had been building in the past and had this problem before
but forget how I go rid of it. I set some links but can remember
where.
The error I get from /usr/src/linux with make xconfig is
"rm -f include/asm
rm: include/asm: is a directory
make: *** [symlinks] error 1"
I looked at ELF-HOWTO and there is a mention of: loosing links
when you move /usr/include. I did not do that but I did re-apply
the kernel source. What are the links I need?
Thanks David Kirkpatrick
--
[EMAIL PROTECTED]
------------------------------
From: "Ashley Heath" <[EMAIL PROTECTED]>
Subject: Re: web based useradd function
Date: Sat, 1 Jul 2000 15:04:09 +0100
Sure thats not http://www.webmin.com/webmin
http://www.webadmin.com/webadmin does not seem to exist
Ash
"Rubin Bennett" <[EMAIL PROTECTED]> wrote in message
news:7%q65.32$[EMAIL PROTECTED]...
> Go to: http://www.webadmin.com/webadmin
>
> Very cool administration tool; you can do just about everything you need
to
> and it's SUPER easy to set up.
>
> Good luck!
>
> Rubin
>
> <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED]...
> > From: <[EMAIL PROTECTED]>
> >
> > Dear all,
> > I am fresh from unix or lunix platform and my boss has bought a
> > web
> > mail program and force me to install, however, this program does not
> > allow
> > user to register their username and password. As a free mail
> > provider, I
> > have no idea on how I can write a cgi script to allow public to add
> > the
> > user name with thier password. Can anyone suggest any link I can
> > follow
> > to finish my task, thank you for your kindly help
> >
> > Max
> >
> >
> > --
> > Posted via CNET Help.com
> > http://www.help.com/
> >
> >
>
>
------------------------------
From: Tim Holmes <[EMAIL PROTECTED]>
Subject: Re: whereis kerneld on RH 6.2?
Date: Sat, 01 Jul 2000 14:11:14 GMT
Just to follow up my own post, I dug around a bit and installed kernel
sources.
There was a message in there that kerneld is no more. I guess it is built
into the kernel.
Maybe RedHat will change the kernelcfg program so it knows too.
Now if I can just get the modules to load. When I put this into
modules.conf, the parport and
ide-scsi won't load automatically. I guess I could put it in rc.local.
Any thoughts on this?
Thanks,
Tim Holmes
/etc/modules.conf:
alias scsi_hostadapter initio
alias parport_lowlevel parport_pc
alias sound-slot-0 es1370
alias sound-slot-1 esssolo1
alias eth0 ne
options eth0 io=0x300 irq=3
pre-install sg modprobe ide-scsi # load ide-scsi before sg
Tim Holmes wrote:
> Hello,
>
> I just installed RedHat 6.2, and I can't find kerneld. It's not listed
> in the rpm contents for modutils, and control-panel complains of not
> being able to find it. Because it's not there anymore.
>
> Anybody know what this is about?
>
> Thanks,
>
> Tim Holmes
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: gtk
Date: Sat, 1 Jul 2000 15:41:01 +0100
Ian Mortimer <[EMAIL PROTECTED]> did eloquently scribble:
> hi guys,
> I'm trying to make a gtk interface to a stepper motor and I was
> wondering if anyone new of some good sites with example code (or hints)
> for sending bytes of information to the serial port with a button press
> ? (eg click "left", send "L" etc.)
The gtk tutorial's good enough for that, with details on how to make all the
various widgets and callbacks work...
Can't help you with the actual sending of a byte, but creating the button
and linking the callback is dead easy...
Just use something like...
GtkWidget *make_icon(GtkWidget *parent, GdkPixmap *icon, GdkBitmap
*mask,GtkWidget *button_bar, GtkTooltips *tooltip, char *tip)
{
GtkWidget *iconwid;
GtkWidget *button;
button=gtk_button_new();
iconwid=gtk_pixmap_new(icon,mask);
gtk_widget_show(iconwid);
gtk_tooltips_set_tip(tooltip,button,tip,NULL);
gtk_container_add(GTK_CONTAINER(button),iconwid);
gtk_box_pack_start(GTK_BOX(button_bar),button,FALSE,FALSE,0);
gtk_widget_show(button);
return(button);
}
to create a button in a button bar...
and
button=make_icon(window, FIXED0,FIXED0_Mask,button_bar,tooltip,"whatever");
gtk_signal_connect(GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC(send_byte),
(gpointer)byte_to_send);
(Where byte_to_send is the variable you want to send...)
Then, in the callback routine...
static gint icon_pressed (GtkWidget *widget, GdkEventButton *event, gpointer
data)
where data is the byte_to_send sent by the callback routine.
Hope that helps...
--
______________________________________________________________________________
| [EMAIL PROTECTED] | |
|Andrew Halliwell BSc(hons)| "The day Microsoft makes something that doesn't |
| in | suck is probably the day they start making |
| Computer science | vacuum cleaners" - Ernst Jan Plugge |
==============================================================================
------------------------------
From: "Scippie" <[EMAIL PROTECTED]>
Subject: Re: Linux Server Security
Date: Sat, 01 Jul 2000 14:47:11 GMT
Thank you, done & done !
"Leon en Michael" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> yes....you can be hacked.
> I should turn off the Telnet-server from all host exept the one from wich
> you telnet into your server.
> If you do that and use random passwords for your FTP-server, your pretty
> safe.
>
> Leon
>
> Scippie <[EMAIL PROTECTED]> schreef in berichtnieuws
> i_h75.39908$[EMAIL PROTECTED]
> > Hello,
> >
> > I have a cable-connection to the internet and I installed a computer
with
> > Redhat Linux 6.2 to make that internet work on more computers. I also
> share
> > some directories and I have a telnet & ftp server running.
> > I don't work on that computer, it stands there, alone in a place where
> even
> > I almost never come. So I don't use it to surf or anything, just a
> server...
> >
> > Now my question is... can anyone that has my IP number hack the machine
?
> > (please don't prove it, you probably already know my IP number), and
what
> > can he mess up ?
> >
> > I never log in on the computer locally, just sometimes (for a couple of
> > minutes to manage the shares) via a telnet session.
> >
> > Anyway, I've run Win2k server on that computer (P200MMX,64Mb) and it
> sucked
> > ! 10 minutes to boot, 3 times a day reboot, ... . Now I run Redhat on
that
> > computer and guess what ????? No reboots since placement in the cabinet,
> > booting in 2 minutes, and I noticed that my HUB has much less network
> > congestions... Is this just a thought ? Or does Linux handle the network
> > better ?
> >
> > Thank you,
> >
> > Dirk.
> >
> >
>
>
------------------------------
From: "Scippie" <[EMAIL PROTECTED]>
Subject: Re: Linux Server Security
Date: Sat, 01 Jul 2000 14:47:28 GMT
Seems I had a little problem there huh
"Scippie" <[EMAIL PROTECTED]> wrote in message
news:i_h75.39908$[EMAIL PROTECTED]...
> Hello,
>
> I have a cable-connection to the internet and I installed a computer with
> Redhat Linux 6.2 to make that internet work on more computers. I also
share
> some directories and I have a telnet & ftp server running.
> I don't work on that computer, it stands there, alone in a place where
even
> I almost never come. So I don't use it to surf or anything, just a
server...
>
> Now my question is... can anyone that has my IP number hack the machine ?
> (please don't prove it, you probably already know my IP number), and what
> can he mess up ?
>
> I never log in on the computer locally, just sometimes (for a couple of
> minutes to manage the shares) via a telnet session.
>
> Anyway, I've run Win2k server on that computer (P200MMX,64Mb) and it
sucked
> ! 10 minutes to boot, 3 times a day reboot, ... . Now I run Redhat on that
> computer and guess what ????? No reboots since placement in the cabinet,
> booting in 2 minutes, and I noticed that my HUB has much less network
> congestions... Is this just a thought ? Or does Linux handle the network
> better ?
>
> Thank you,
>
> Dirk.
>
>
------------------------------
** FOR YOUR REFERENCE **
The service address, to which questions about the list itself and requests
to be added to or deleted from it should be directed, is:
Internet: [EMAIL PROTECTED]
You can send mail to the entire list (and comp.os.linux.misc) via:
Internet: [EMAIL PROTECTED]
Linux may be obtained via one of these FTP sites:
ftp.funet.fi pub/Linux
tsx-11.mit.edu pub/linux
sunsite.unc.edu pub/Linux
End of Linux-Misc Digest
******************************
