Linux-Misc Digest #114, Volume #27 Thu, 15 Feb 01 00:13:03 EST
Contents:
Netscape 4.7x crashing on Red Hat 7.0 (James D Parker Jr)
Re: Win4Lnx (Arctic Storm)
Re: Cannot umount, ZIP questions (ljb)
Re: File system/Superblock problems (David Richard Larochelle)
Re: How to get Users to create files with another group as owner?? (Dan Smith)
Re: Auto Mount Daemon Delays (Bob Hauck)
Re: Mail Server Newbie (Rod Smith)
Cron notification? (MH)
Re: Win4Lnx (Rod Smith)
Re: Netscape 4.7x crashing on Red Hat 7.0 (E J)
Re: Removing Lilo (E J)
Re: Cron notification? ("Peter T. Breuer")
Re: MS to Enforce Registration - or Else ("Peter T. Breuer")
Re: How to forward external requests to internal machine? (lilo)
----------------------------------------------------------------------------
From: James D Parker Jr <[EMAIL PROTECTED]>
Subject: Netscape 4.7x crashing on Red Hat 7.0
Date: Wed, 14 Feb 2001 21:02:19 -0500
I've seen most of the FAQs related to Netscape crashes and I don't think
they apply to my situation unless I've missed an FAQ.
What is happening is that if I visit a web page that results in the
following popup screen, Netscape will often, but not always crash after
I press OK:
======popup window ======================================
Netscape: Security Warning
You have requested a secure document that contains some insecure
information.
The insecure information will not be shown.
For more information on security choose Page Info from the View menu.
X Show this alert next time
OK
=======================================================
It appears that I have some control over whether it crashes. If I am
accessing the page by pressing a link and I wait for the
"stalled" message in the progress bar before pressing OK in the popup,
then it (so far) won't crash. If I'm accessing the page by pressing the
Back button it will crash no matter how long I wait. If I am accessing
the page by pressing a link and I don't wait for "stalled" to appear in
the progress bar, it usually crashes.
The web pages that I've been experiencing this problem with are the Red
Hat Security Errata pages; a circumstance which I find both ironic and
perverse! But Linux is new to me and I haven't really surfed much under
Linux.
I am currently using Netscape 4.76 but I had the same behavior with
Netscape 4.75. Netscape 4.75 is what comes with the Red Hat 7.0
distribution.
Anyone else experience this? Will unchecking "Show this alert next time"
get rid of the problem? Or will unchecking it make it impossible to
avoid the crash? If I uncheck it, how do I restore it so that the popup
does appear?
Thanks
Jim
------------------------------
From: Arctic Storm <[EMAIL PROTECTED]>
Subject: Re: Win4Lnx
Date: Thu, 15 Feb 2001 02:01:53 GMT
I want to use Linux as my desktop on my job but I need to be careful cause
> they are a big windows shop. I thought it would be easier and less trouble
> (especially if the so-called pc people come by) to just install Mandrake
> 7.2 Win4Lnx and then when I knwo they are comming I can juts boot into
> windows real quick.
>
> I run WIndowsNT which has the bootup option screen and the FAT filesystem.
> Can I install Win4Lnx on this system with out messing up the NT bootup
> options screen?
When you say "... just boot into windows real quick", do you mean switch
between Windows and Linux on the fly? No such thing; you must reboot your
computer to switch between OS'es.
Windows NT comes with the NT Loader, which allows you to choose the
operating system boot up; e.g., if you have Win98 and WinNT4 on the same
computer, you'll be presented with an option to choose at boot up.
If you want to intall Linux on your computer, then you'll have to partition
your hard drive, and install Linux on the newly created partition. You can
set up your system so that at boot up, the NT loader will present you with
the following options: Win98, WinNT, & Linux. I have Win98SE, Win2K, &
Linux on the same computer, and the NT Loader gives me control regarding
the OS to boot.
Another, less elegant, method is to leave the NT Loader alone. You'll
still have to create a new partition to install the Linux. If you want to
run Linux, insert the Linux boot floppy. If you want to run Windows,
remove the Linux boot floppy and simply reboot.
I'd be surprised if you don't have a personal computer at home. Try it at
home and see if you like it, so you won't get fired for messing with the
computer at work, without permission. Either Mandrake or RedHat is a good
choice for beginners to learn Linux.
-
------------------------------
From: [EMAIL PROTECTED] (ljb)
Subject: Re: Cannot umount, ZIP questions
Date: 15 Feb 2001 02:04:11 GMT
[EMAIL PROTECTED] wrote:
>...
>
>Also, depending on the file system on parallel ZIP disk, my
>/dev/sda# is
>different, sda1, or sda4. This makes it necessary to know
>the
>filesystem of the disk before mounting, OR try mount
>/dev/sda1
>and mount /dev/sda4. I "thought" that the device assignments
>were
>physical, not logical, this appears to not be the case am I
>missing
>something?
I can answer this second part. "sda" is the first SCSI (or SCSI-emulation)
disk found. The 1-4 refers to the partition number on the disk. These are
assigned when the disk is divided into partions (fdisk), and you don't have
to have a 1-3 to have a 4. So sda4 is "partition 4" on "first SCSI disk".
Most ZIP disks are preformatted to have only partition 4. If you fdisk and
mk*fs them yourself, you can use any partition, but you probably should
stick with 4 to make it less confusing.
Regarding your umount problem, can you post an error message?
------------------------------
From: David Richard Larochelle <[EMAIL PROTECTED]>
Subject: Re: File system/Superblock problems
Date: Wed, 14 Feb 2001 21:22:54 -0500
On Wed, 14 Feb 2001, Eric wrote:
>
> "David Richard Larochelle" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]...
> > My linux file system seems to be corrupted.
> > When I try to boot I get a kernel panic unable to mount root file system.
> >
> > I tired booting off a rescue disk and running e2fsck but I get something
> > like:
> > e2fsck: Bad magic number in super-block while trying to open /dev/hdb1
> >
> > I've tried running e2fsck with -b 8193 and with -b 16385 but I still get
> > the same message. I added 8192 and repaeted this about 5 more times but
> > still no luck.
>
> try one of the following superblock locations:
> 32768
32768 worked
Thanks for your help
------------------------------
From: Dan Smith <[EMAIL PROTECTED]>
Subject: Re: How to get Users to create files with another group as owner??
Date: Wed, 14 Feb 2001 20:55:19 -0500
No, I think that might do the trick... How do I learn more about the
SUID bit? I don't understand what's going on...
I'll give it a try... Thanks!
--Dan
In article <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] says...
> In article <[EMAIL PROTECTED]>, Dan Smith wrote:
> >Hi,
> >
> >I need to make it so that when a user (member of group A) creates a
> >file, the ownership is: user.groupB. I need to make the group owner NOT
> >their group, but another one (so a group of semi-admins can access their
> >stuff)..
> >
> >How do I do this???
> >
> >Thanks!
> >
> >(I would prefer an email to ds37577!@!appstate!.!edu <remove ! chars>)
>
> Dan,
>
> There is one way that I'm familiar with (not that other ways don't exist)...
>
> If the files under a particular directory are to be of the same group,
> you can cause those files to always take on the group of the parent directory
> by setting the SUID group bit in the directory. In other words,
>
> chmod g+s directory_name
>
> This might be too narrow a scope to solve your problem...
>
>
------------------------------
From: [EMAIL PROTECTED] (Bob Hauck)
Subject: Re: Auto Mount Daemon Delays
Reply-To: bobh = haucks dot org
Date: Thu, 15 Feb 2001 03:43:43 GMT
On Wed, 14 Feb 2001 14:52:56 GMT, Mark Penkower <[EMAIL PROTECTED]> wrote:
>I have a P120 with a 1.4 Gig Drive runnning Caldera Open Linux 2.4. If
>I reboot the machine it hangs when it gets to the part entitled "Auto
>Mount Daemon." It can take up to 4 minutes before it gets past this
Is the DNS you have in /etc/resolv.conf on the other side of a dialup
line? Go to <http://support.calderasystems.com> and search on "amd
delay" in the knowledge base. Abut the fifth hit will explain about how
to configure if you have a dialup on your machine.
If you are using some kind of dial-on-demand system, or some other
gadget that isn't online all the time, it might be a good idea to set up
a name server for local queries. Or, if you don't need amd (you are ok
with manually mounting cd's and such), you can disable it in COAS.
--
-| Bob Hauck
-| To Whom You Are Speaking
-| http://www.haucks.org/
------------------------------
Reply-To: [EMAIL PROTECTED]
From: [EMAIL PROTECTED] (Rod Smith)
Subject: Re: Mail Server Newbie
Date: Thu, 15 Feb 2001 03:45:44 GMT
[Posted and mailed]
In article <[EMAIL PROTECTED]>,
"James Horvath" <[EMAIL PROTECTED]> writes:
> Thank you all for the responses. To clarify a couple issues and keep you all
> up to date (if you care):
>
> 1). Mandrake 7.2 minimal install did in fact install sendmail, not postfix.
> This may have been a recent change to Mandrake?
My Mandrake 7.2 system installed Postfix but not sendmail. I don't
believe I did a minimal install, though; I believe I chose a custom
install. The CD-ROM has RPMs for both. It sounds like Mandrake does
sendmail for a minimal install and Postfix for others, for some reason
I can't fathom. I believe they've been doing Postfix by default, at
least on the installation methods I've used, since Mandrake version 6.1
or 6.2.
> 2). At the behest of the original responder, and after reviewing countless
> web pages on the differences between qmail and sendmail, I yanked sendmail
> off the system and installed qmail 1.03 from source. The installation has
> apparently gone smoothly as all of the tests proposed fire without a hitch.
> I did pick up the O'Reilly Sendmail book (a.k.a. the bat book) but haven't
> put much time into reading it yet. It is my intention to switch over to the
> more universal standard (sendmail) at some point in the distant future.
My advice is that if you get *ANY* MTA working to your satisfaction,
switch only if you've got a compelling reason to do so. This can be
because you want to learn another, because you've found a problem with
whatever you're using, because another server supports features you
want to investigate, or various other reasons, but not because one
program is more or less "standard" than another. (Sometimes installing
an alternative server on a spare test system makes sense; you don't
want to interrupt regular mail delivery just to experiment, for
instance.) All SMTP MTAs are supposed to conform to various RFCs
defining e-mail transmission, and AFAIK all of the major ones we've
been discussing do a good enough job of this that they can talk to each
other and exchange mail quite reliably. Switching MTAs can be a pain --
it's a whole new configuration system to learn, and there are sometimes
subtle or not-so-subtle incompatibilities with local software, so the
effort just isn't worth it if the thing's working to your satisfaction,
unless you've got a compelling reason to change.
> Which leaves me a little in the dark. I still need a way to connect to the
> mail directories with Microsoft Outlook (for both sending and receiving).
> Many of you have mentioned Qpopper (which I'll download in a little bit),
> but I'd like to make sure I'm not overlapping or running more than I need
> to. Presently I have Fetchmail, Qmail, and (soon) Qpopper running (in
> addition to some recommended toolsets like qmail daemontools). Is this the
> best combination of ease and efficiency?
I'm not familiar with Qpopper, but to access the Linux mail server's
mail queues with mail clients on other systems, you need to run a pull
mail server. The most common protocols for this are POP and IMAP.
Qpopper is, if I'm not mistaken, one of several POP servers. I believe
it's designed for use with qmail, but I don't know that for sure.
> Outlook sends messages to Qmail smtp which sends the mail to my ISP.
> Messages from the ISP are grabbed by Fetchmail, stored on the Linux server,
> and delivered to Outlook by Qpopper/imapd/ipop3d. This is more or less my
> understanding of the process.
Correct, although qmail may or may not forward outgoing mail via your
ISP; it could send it directly to the addressee system.
> Can Qmail act as the pop3/imap server to
> replace Qpopper/imapd/ipop3d? If so, how?
I'm pretty sure that qmail doesn't support POP or IMAP directly; that's
what Qpopper is for. I've never configured a qmail-based system for POP
or IMAP, though, so I can't give any advice from experience on this.
--
Rod Smith, [EMAIL PROTECTED]
http://www.rodsbooks.com
Author of books on Linux & multi-OS configuration
------------------------------
From: MH <[EMAIL PROTECTED]>
Subject: Cron notification?
Date: Wed, 14 Feb 2001 19:48:31 +0000
I use cron to run nightly backups. Apparently, cron does not log this
activity. (I'm running RH 6.0 6.2 7.0)
How can I have cron send me notification that the backup task has completed
successfully (I'm using cp for backup). Presumably, I could do this using
mail, but I'm not sure what options/commands to use to accomplish this.
--
I use GNU/Linux and support the Free Software Foundation. This message was
composed and transmitted using free software, licensed under the General
Public License.
--
------------------------------
Reply-To: [EMAIL PROTECTED]
From: [EMAIL PROTECTED] (Rod Smith)
Subject: Re: Win4Lnx
Date: Thu, 15 Feb 2001 03:48:18 GMT
In article <lMGi6.92$[EMAIL PROTECTED]>,
Arctic Storm <[EMAIL PROTECTED]> writes:
> I want to use Linux as my desktop on my job but I need to be careful cause
>> they are a big windows shop. I thought it would be easier and less trouble
>> (especially if the so-called pc people come by) to just install Mandrake
>> 7.2 Win4Lnx and then when I knwo they are comming I can juts boot into
>> windows real quick.
>
> When you say "... just boot into windows real quick", do you mean switch
> between Windows and Linux on the fly? No such thing; you must reboot your
> computer to switch between OS'es.
Well, you *COULD* run Linux within a VMware session in Windows NT/2000,
or Windows within a VMware session in Linux. If run full-screen, it'd
look just like a regular installation of the OS, although it'd run
slower and wouldn't be able to use exotic hardware like video capture
cards.
--
Rod Smith, [EMAIL PROTECTED]
http://www.rodsbooks.com
Author of books on Linux & multi-OS configuration
------------------------------
From: E J <[EMAIL PROTECTED]>
Subject: Re: Netscape 4.7x crashing on Red Hat 7.0
Date: Thu, 15 Feb 2001 04:09:33 GMT
Edit->Preference->Advance->Cache
Increase the memory cache (try doubling it?) and see if it reduces the
Netscape 4.72 crashes.
James D Parker Jr wrote:
> I've seen most of the FAQs related to Netscape crashes and I don't think
> they apply to my situation unless I've missed an FAQ.
>
> What is happening is that if I visit a web page that results in the
> following popup screen, Netscape will often, but not always crash after
> I press OK:
>
> ------popup window --------------------------------------
> Netscape: Security Warning
>
> You have requested a secure document that contains some insecure
> information.
>
> The insecure information will not be shown.
>
> For more information on security choose Page Info from the View menu.
>
> X Show this alert next time
>
> OK
> -------------------------------------------------------
>
> It appears that I have some control over whether it crashes. If I am
> accessing the page by pressing a link and I wait for the
> "stalled" message in the progress bar before pressing OK in the popup,
> then it (so far) won't crash. If I'm accessing the page by pressing the
> Back button it will crash no matter how long I wait. If I am accessing
> the page by pressing a link and I don't wait for "stalled" to appear in
> the progress bar, it usually crashes.
>
> The web pages that I've been experiencing this problem with are the Red
> Hat Security Errata pages; a circumstance which I find both ironic and
> perverse! But Linux is new to me and I haven't really surfed much under
> Linux.
>
> I am currently using Netscape 4.76 but I had the same behavior with
> Netscape 4.75. Netscape 4.75 is what comes with the Red Hat 7.0
> distribution.
>
> Anyone else experience this? Will unchecking "Show this alert next time"
> get rid of the problem? Or will unchecking it make it impossible to
> avoid the crash? If I uncheck it, how do I restore it so that the popup
> does appear?
>
> Thanks
> Jim
------------------------------
From: E J <[EMAIL PROTECTED]>
Subject: Re: Removing Lilo
Date: Thu, 15 Feb 2001 04:12:04 GMT
Boot on your windows floppy and remove lilo on the Master Boot Record
fdisk /mbr
Philip wrote:
> We installed RH on a computer to determine whether the hardware is
> compatible with RH. Then decided to install NT4 instead. After the
> install the system boots to LI then hangs. We have reformated the HD
> using Partition Magic and are still running into this problem.
------------------------------
From: "Peter T. Breuer" <[EMAIL PROTECTED]>
Subject: Re: Cron notification?
Date: Thu, 15 Feb 2001 04:36:06 GMT
MH <[EMAIL PROTECTED]> wrote:
> How can I have cron send me notification that the backup task has completed
> successfully (I'm using cp for backup). Presumably, I could do this using
Make the task emit something on stdout or stderr.
(i.e, man cron/crontab)
Peter
------------------------------
From: "Peter T. Breuer" <[EMAIL PROTECTED]>
Subject: Re: MS to Enforce Registration - or Else
Crossposted-To: comp.os.linux.advocacy
Date: Thu, 15 Feb 2001 04:36:06 GMT
In comp.os.linux.misc John Hasler <[EMAIL PROTECTED]> wrote:
> Robert Surenko writes:
>> It also takes faith to believe the Universe is as appears to the 5
>> senses.
> I don't.
Well, there are issues of sanity involved here. Doubting the evidence of
your own senses leaves you in a difficult position. Insanity is a
probable outcome (although that is a sane response to the predicament).
>> Because of this it also takes great faith to not believe ( or believe
>> not) in God.
> Nonsense.
>> Science and logic are a religion.
> More nonsense.
Agreed. It is after all, very difficult to program a computer using
religious beliefs as a basis for your programming. I tend to view that
as evidence that scientific belief is qualitatively different, since
believing in scientific principles like observation, no-interpretation,
experiment, hypothesiis formation and refutation, does help you program
a computer.
On the other hand, so does alcohol and coffee.
Peter
------------------------------
From: lilo <[EMAIL PROTECTED]>
Crossposted-To: alt.os.linux.mandrake
Subject: Re: How to forward external requests to internal machine?
Date: Thu, 15 Feb 2001 04:42:07 GMT
Warren Bell wrote:
>
> I'm running Mandrake 7.2 with ipchains as a firewall. I want to forward
> any requests to a certain port to an internal machine on the local
> network allowing it through. I've been looking around but can't find
> how to do this. The only thing I've found is that you can't do it with
> ipchains. What program can I use to do this?
Search the net for a package called ipmasqadm. Then add some rules to
your firewall script along the lines of this;
/usr/sbin/ipmasqadm portfw -a -P tcp -L $externalip 80 -R
$internalmachine 80
This takes requests on port 80 of the external ip address and forwards
them to the internal ip address used. I don't know which protocol you
wish to forward, but ftp is tough to do.
------------------------------
** 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 by posting to comp.os.linux.misc.
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
******************************
