Linux-Misc Digest #523, Volume #27 Tue, 3 Apr 01 22:13:04 EDT
Contents:
Re: Secure File deletion ("Peter T. Breuer")
Re: Secure File deletion ("Peter T. Breuer")
Re: Memory pb : 384M real, 64M effective ("Peter T. Breuer")
Re: Secure File deletion ("Peter T. Breuer")
The Python is so powerful, easy to use? compared with C++ (Hun)
Re: loopback device (Peter Petersen)
mail reader (Charles Herman)
Re: Question about connect to win98/2k from linux using smbclient! (John Hanson)
Re: CDR writing with SCSI emulation stops ppp transfers (Dances With Crows)
Re: CDR writing with SCSI emulation stops ppp transfers (David Efflandt)
Re: The Python is so powerful, easy to use? compared with C++ (Bob Hauck)
"Busmaster 1, dirty" errors with my (slow) IP Masq (SNAT) firewall... (Brendan
Byrd/SineSwiper)
Re: difference between ext2fs and raiserfs (Johan Kullstam)
Re: What's a good smtp server? (Johan Kullstam)
[q]Network Card module probing!!!, Not working. ("�̹���")
Re: How to setup the secure (ssh based) Xterminal? (David Efflandt)
----------------------------------------------------------------------------
From: "Peter T. Breuer" <[EMAIL PROTECTED]>
Subject: Re: Secure File deletion
Date: Wed, 4 Apr 2001 00:29:19 +0200
[EMAIL PROTECTED] wrote:
> [EMAIL PROTECTED] (Grant Edwards) writes:
>> In article <[EMAIL PROTECTED]>, Peter T. Breuer wrote:
>> >Hugh Potter <[EMAIL PROTECTED]> wrote:
>> >> Im a recent convert to Linux. Ld like to be able to securely delete swap and
>> >> other temp files in Linux Mandrake. In Windows I used scorch for the swap file
>> >> and eraser for the rest. Any suggestions for linux.
>> >
>> >man dd. Overwrite it with zeros (then delete it, if appropriate).
>> Overwriting a file with dd may or may not overwrite the data that
>> existed in the file. It depends on the filesystem implimentation. I
>> think it will work for ext2, but doubt that it will for reiserfs.
> I wouldn't be sure that it would work for ext2, either.
Err, folks, have you gone off the deep end?
> It is by no means obvious that dd would make any attempt to write to
> the same file, regardless of the filesystem. Frankly, I'd expect this
It most certainly is obvious, because that is what it does, by
definition. It does not make a new file and write to it, it does not
start a fire in your aunt patty's bedroom. It precisely and exactly
overwrites given parts of a file, at an offset of your choosing, with a
number of blocks of your choosing.
To be precise, it calls the system call write(), preceded by seek().
> to just plain not work, for the result to be something along the lines
> of:
> -> dd opens file for output.
> -> Internally, this means that blocks attached to the file are
> thrown into system free list.
Nonsense. I suppose you think that everytime I call open() on a file
I manage to discard the existing files blocks :-) Are you on something
I should know about?
> -> Then, a new set of blocks get written to, by dd.
> -> The file is now tied to the new sequence of blocks.
[Hilarious piffle discarded]
Peter
------------------------------
From: "Peter T. Breuer" <[EMAIL PROTECTED]>
Subject: Re: Secure File deletion
Date: Wed, 4 Apr 2001 00:30:00 +0200
Grant Edwards <[EMAIL PROTECTED]> wrote:
> In article <hYpy6.122860$[EMAIL PROTECTED]>, [EMAIL PROTECTED] wrote:
>>[EMAIL PROTECTED] (Grant Edwards) writes:
> Good point! I think it will work if you open the file in
> append mode and seek to the beginning before writing. But I
> don't know how to get dd to do that.
man fopen.
Peter
------------------------------
From: "Peter T. Breuer" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.hardware,comp.os.linux.setup
Subject: Re: Memory pb : 384M real, 64M effective
Date: Wed, 4 Apr 2001 00:35:38 +0200
In comp.os.linux.hardware Pantalacci Christophe <[EMAIL PROTECTED]> wrote:
> I've got this kind of problem :
> Linux only sees 64M of RAM. When I modify lilo.conf by adding
There's no problem with that.
> append="mem=384M" and executing lilo, my whole system crashes at reboot with
> segmentation faults everywhere, and i must reinstall.
So you know what not to do! So carry on choosing numbers imbetween until
you find the right value. It's likely that your bios takes a meg or so.
Problem?
> I guess it's a hardware issue, maybe due to the VIA chipset.
> The config is the following :
> PIII 733 Mhz
> 3x128Mo RAM (100Mhz)
> Chipset VIA Apollo Pro
Peter
------------------------------
From: "Peter T. Breuer" <[EMAIL PROTECTED]>
Subject: Re: Secure File deletion
Date: Wed, 4 Apr 2001 00:32:08 +0200
Christopher W. Aiken <[EMAIL PROTECTED]> wrote:
> SuSE 7.1 comes with a file "wipe" utility. Here is part of the man page.
> DESCRIPTION
> Wipe is a secure file wiping utility. However, it does not
Acoording to the ridiculous arguments put forward by certain people on
something strange in this thread, it has no means of doing what it
claims to do, as the blocks of the file may be mysteriously snatched
from underneath it as it tries to write to them :-).
Peter
------------------------------
From: [EMAIL PROTECTED] (Hun)
Subject: The Python is so powerful, easy to use? compared with C++
Reply-To: [EMAIL PROTECTED]
Date: Tue, 03 Apr 2001 23:28:14 GMT
Hello,
I have a guide book for the Python language. I bought it one month ago, but not yet to
try learn it. I read the introduction chapter of the book today.
"Five or eight times faster than using C++ to develop a application"
"Three months length of the Python programming normally takes one year of C++
programming."
If so, it would be the ultimate programming language.
Is it so powerful and easy-to use? I agree with the Python is easy and don't have
legacy grammer check so a programmer save times for checking missing semicolon or
other minor mistakes.
I normally use C and C++. When I read source code, to understand the structure and
basic ideas is most time consuming not the language stuff. C/C++ is so difficult to
use? Many developers around me just giving up learning C/C++. They prefer Java, script
languages or 4GL. Maybe they are smart or I'm dump head standing out of the change. :(
My opinion is the programming language is just a tool. Making a good program is solely
depend on the programmer. Am I wrong? Only changing a tool improves even 8 times of
development time would be a magic for the developers.
Well, I'm considering learning a new language: perl either python. "8 times faster"
still buzzing in my head. :)
--
Registered Linux user #207121
http://counter.li.org
------------------------------
From: Peter Petersen <[EMAIL PROTECTED]>
Subject: Re: loopback device
Date: Wed, 04 Apr 2001 02:03:23 +0200
"Peter T. Breuer" <[EMAIL PROTECTED]> wrote:
>> Has anyone problems with the loopback device with a 2.4.2 kernel?
>
>It doesn't work in any of the 2.4.*. It was supposed to have been fixed
>by 2.4.3 but I don't know if it happened. Check.
Well, it didn't work for me with 2.4.2, and I couldn't see any mistake I
made, so I finally found out that it was, indeed, a bug in 2.4.2.
After applying a patch called loop-6 it worked.
Now that I have 2.4.3, I can say that in my case it works perfectly.
Regards
Peter
------------------------------
From: Charles Herman <[EMAIL PROTECTED]>
Subject: mail reader
Date: 04 Apr 2001 00:48:36 GMT
I am looking for a mail reader for Linux, any suggestions.
-charles
------------------------------
From: John Hanson <[EMAIL PROTECTED]>
Subject: Re: Question about connect to win98/2k from linux using smbclient!
Date: Wed, 04 Apr 2001 00:56:37 GMT
On Tue, 03 Apr 2001 02:06:32 GMT, [EMAIL PROTECTED] said:
>>
>> Hi,everyone.
>> I'm running samba-2.0.6-9 in my linux computer and when I try to use the command
>"smbclient -L 192.168.1.5(this is a win98 computer)
>>It tells me "session request to 192.168.5 failed(called name not present)". What's
>the meaning? Maybe it's really easy for you and I'll greatly appreciate your help.
>Thanks.
I always use smbclient with a computer name and not an ip address.
This might be your problem. Also, the win computer needs to be in the
same workgroup as your linux box.
------------------------------
From: [EMAIL PROTECTED] (Dances With Crows)
Crossposted-To: alt.os.linux.mandrake
Subject: Re: CDR writing with SCSI emulation stops ppp transfers
Reply-To: [EMAIL PROTECTED]
Date: 04 Apr 2001 00:58:46 GMT
On 3 Apr 2001 17:17:53 GMT, Esa Tikka staggered into the Black Sun and said:
>On Tue, 03 Apr 2001 17:01:47 GMT, Eric Potter <[EMAIL PROTECTED]> wrote:
>>
>>This is a weird one, but whenever I write a disk with my IDE CDRW, any
>>downloads via my dial-up modem stop immediately. If I stop writing the
>>CDR, then the download resumes. I have tried this on two different
>>computers, and two different distributions, Mandrake 7.2 and Mandrake
>>8.0b2. I have tried my own kernel builds also. CD writer is set as
>>secondary master. This only seems to occur when using the ide-scsi
>>emulation for atapi CDR's. If I don't load ide-scsi, I can run "cat
>>/dev/hdc > /dev/null" or another such heavy I/O operation without this
>>problem.
>
>It would seem that this is not the case, but still... have you tried
>setting unmasqirq=on on your ide drives? (hdparm -u1 /dev/hdx)
>Read the man page of hdparm first anyway, there are some warnings worth
>noting.
>I had similar problems, stressing *any* ide drive caused serial port to
>stop transmitting data.
What Esa Tikka said. hdparm -m16 -u1 -c1 /dev/hdX is safe on just about
any modern hardware; adding -d1 is a bit riskier but may improve
throughput by a lot.
Also, you should've mentioned that you were using kernel 2.4.3 .
Despite its even number in the second position, there are still some
bugs. IIRC, cdrecord gets some of its vital info from kernel headers,
and if you're using a cdrecord compiled against a 2.2 kernel while using
a 2.4 kernel, odd problems may crop up.
--
Matt G|There is no Darkness in Eternity/But only Light too dim for us to see
Brainbench MVP for Linux Admin / Workin' in a code mine, hittin' Ctrl-Alt
http://www.brainbench.com / Workin' in a code mine, whoops!
=============================/ I hit a seg fault....
------------------------------
From: [EMAIL PROTECTED] (David Efflandt)
Crossposted-To: alt.os.linux.mandrake
Subject: Re: CDR writing with SCSI emulation stops ppp transfers
Date: Wed, 4 Apr 2001 01:39:01 +0000 (UTC)
Reply-To: [EMAIL PROTECTED]
On Tue, 03 Apr 2001 17:01:47 GMT, Eric Potter <[EMAIL PROTECTED]> wrote:
>In article <3ac92dd8$0$42878$[EMAIL PROTECTED]>, "Dances With
>Crows" <[EMAIL PROTECTED]> wrote:
>
>> On Mon, 02 Apr 2001 15:58:38 GMT, Eric Potter staggered into the Black
>> Sun and said:
>>>This is a weird one, but whenever I write a disk with my IDE CDRW, any
>>>downloads via my dial-up modem stop immediately. If I stop writing the
>>>CDR, then the download resumes. I have tried this on two different
>>>computers, and two different distributions, Mandrake 7.2 and Mandrake
>>>8.0b2. I have tried my own kernel builds also. CD writer is set as
>>>secondary master. This only seems to occur when using the ide-scsi
>>>emulation for atapi CDR's. If I don't load ide-scsi, I can run "cat
>>>/dev/hdc > /dev/null" or another such heavy I/O operation without this
>>>problem.
>>
>> How are you writing this CD? cdrecord, or one of its front-ends? And
>> do dmesg or /var/log/messages show anything odd happening when you start
>> to burn the CD? cdrecord may try to set itself to near-realtime
>> priority (nice -19 or so) when it shouldn't. (Check the output of "top"
>> while cdrecord is running.) Frontends like XCDRoast may have a switch
>> you can flip to make cdrecord run at normal priority. If cdrecord is
>> hogging the CPU, then said CPU will be hard-pressed to handle the
>> near-constant stream of IRQs that a modem generates.
>>
>> Also check what "cat /proc/interrupts" says regarding the secondary IDE
>> scontroller. Some drives generate a lot more IRQs than others. HTH,
>>
>
>Thanks for some good suggestions. I am using cdrecord.
>
>cdrecord -v -dummy speed=8 fs=8m dev=2,0,0 /dev/scd1
>
>It doesn't matter what speed I am using, 2, 4, or 8 I get the same
>problem. /var/log/messages shows nothing at all about the problem.
>It also doesn't matter where the input file is stored, IDE or SCSI
>hard disk or SCSI CDROM. 'Nice' value is 0 for the process, and I am
>using a 1 Ghz athlon, so cpu usage is not a problem. Here are IRQs:
> CPU0
> 0: 539582 XT-PIC timer
> 1: 2103 XT-PIC keyboard
> 2: 0 XT-PIC cascade
> 3: 3131334 XT-PIC
> 7: 0 XT-PIC parport0
> 10: 2833 XT-PIC ncr53c8xx
> 11: 49 XT-PIC BusLogic BT-948, es1371
> 12: 220819 XT-PIC PS/2 Mouse
> 14: 27372 XT-PIC ide0
> 15: 2752 XT-PIC ide1
>NMI: 0
>ERR: 0
Strange that your irq 3 does not show what is using it, should say serial.
It is recognized by the kernel below. What kind of modem is it (ISA, PNP,
PCI, external)? My external modem on ttyS0 shows up like this:
4: 135803 XT-PIC serial
I read somewhere that fast scsi can sometimes steal interupts because it
tries to do its thing fast without using them. Although, I would think
that would just affect something using the same irq.
>Here is dmesg:
>
>Serial driver version 5.05 (2000-12-13) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
>ttyS00 at 0x03f8 (irq = 4) is a 16550A
>ttyS01 at 0x02f8 (irq = 3) is a 16550A
(snipped)
--
David Efflandt [EMAIL PROTECTED] http://www.de-srv.com/
http://www.autox.chicago.il.us/ http://www.berniesfloral.net/
http://cgi-help.virtualave.net/ http://hammer.prohosting.com/~cgi-wiz/
------------------------------
From: [EMAIL PROTECTED] (Bob Hauck)
Subject: Re: The Python is so powerful, easy to use? compared with C++
Reply-To: bobh = haucks dot org
Date: Wed, 04 Apr 2001 01:43:29 GMT
On Tue, 03 Apr 2001 23:28:14 GMT, Hun <[EMAIL PROTECTED]> wrote:
> I have a guide book for the Python language.
> "Three months length of the Python programming normally takes
> one year of C++ programming." If so, it would be the ultimate
> programming language.
Programming in Python is generally quite a bit quicker than in C or
C++. There are a couple of reasons why, the main ones probably being
that it handles memory managment for you, has the right set of built-in
types, comes with a very useful and high-level library and that it has
a very clear syntax. Being interpreted, it also makes it easy to try
things out as you go along and has a powerful introspection capability.
There are tradeoffs of course. Python is interpreted, so it is much
slower than C. It is not a very good systems programming language,
as it lacks low-level hardware access and pointers. OTOH, it also has a
very good interface to C, which means that one very effective way of
using Python is to tie together modules written in C or C++.
> C/C++ is so difficult to use?
It is very easy to make fatal but hard-to-find mistakes in C. It is
not a very forgiving language. Manual memory management is a huge
source of bugs, as are unchecked pointers. These things make C a great
systems language but not a particularly good application language. C++
fixes many of the problems, but brings great complexity. Neither is
really well-suited to projects where the code is expected to evolve
quickly.
For tasks such as writing automated test programs, prototyping, and
writing small tools for use in my daily work, I use Python. For
systems programming, hardware access, and sheer speed, I use C or C++.
Sometimes I use both together, something that Python goes out of its
way to make easy to do. C plus Python is a very useful combination that
I actually prefer to C++.
I recently did a prototype of a small limited-function phone switch.
The hardware vendors supplied C-callable libraries. I used a tool
called SWIG to create Python wrappers around the libraries (literally a
one-day job). This enabled me to call the drivers interactively to get
a feel for how they worked, verify what the parameters did, the best
sequence to do things in, etc.
I then used Python to build the control logic that matches number
patterns, sets up calls, switches them to the right port, keeps track
of call progress, reads config files, and so on. All the grunge work
that isn't really speed-critical, but can benefit from high-level
features like regular expression libraries and automatic memory
management. This approach worked out so well that I think I'll use it
again.
> My opinion is the programming language is just a tool. Making a good
> program is solely depend on the programmer. Am I wrong?
No, you aren't wrong, but tools do have areas in which they excel and
areas in which they don't work so well. A programmer is more effective
if he can match the tool to the job. C and Python actually complement
each other's strengths quite well.
--
-| Bob Hauck
-| To Whom You Are Speaking
-| http://www.haucks.org/
------------------------------
From: Brendan Byrd/SineSwiper <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.hardware,comp.os.linux.networking,comp.os.linux.help
Subject: "Busmaster 1, dirty" errors with my (slow) IP Masq (SNAT) firewall...
Date: Wed, 04 Apr 2001 01:44:18 GMT
Here's the long story: For a long time, I've been having problems with slow
connections between my internal network and the internet (connected to @Home
currently). I decided to try and fix the problem, so I looked around for info
about my problem. I read that RedHat has a problem with their kernels for IP
Masq. (I use Mandrake.) So, when I noticed that the 2.4 kernel was official
(at 2.4.3), I upgraded the kernel.
Damn, that was a @*!$ing mistake! It would be nice when the kernel is in a
stable release -AND- the tools were actually current for it! IPTables, the new
/proc/sys/net system, and the lack of "netstat -M" were highly annoying, as well
as the fact that the "-j MASQUERADE" command they keep advertising on Rusty's
NAT HOWTO didn't do jack sh*t! (I finally had to do "-j SNAT", and I have no
idea why the MASQUERADE doesn't work.)
Anyway, 10 hours later, my problem isn't fixed. But now, I get error messages
on my LOCAL CONSOLE (very annoying) that sez:
Flags: bus-master 1, dirty 8000(0) current 8000(0)
Transmit list 00000000 vs. c216a200.
Followed by a list of 0-15 registers. I have two network cards:
00:0f.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RT8139 (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd. RT8139
Flags: bus master, medium devsel, latency 64, IRQ 11
I/O ports at e400 [size=256]
Memory at e5001000 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
Capabilities: [60] Vital Product Data
00:10.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev
64)
Subsystem: 3Com Corporation: Unknown device 9055
Flags: bus master, medium devsel, latency 64, IRQ 10
I/O ports at e800 [size=128]
Memory at e5000000 (32-bit, non-prefetchable) [size=128]
Expansion ROM at e4000000 [disabled] [size=128K]
Capabilities: [dc] Power Management version 1
As you can see, there are no IRQ conflicts, so what's the problem? It only
happens when my computer (internal computer running Linux/X) is trying to access
something on the Internet, and only sometimes, like when it's trying to get a
FTP directory, or on a few times when it's accessing the web. I imagine this is
the cause of the slow problems with my VPN-to-Internet access. (The firewall
can download normally as a fast speed.) But, I don't know how to fix this.
Anybody have any answers?
(PS.: Please reply by both e-mail and newsgroup. I don't subscribe to any
newsgroups, but I'd like this information in the public records.)
--
Brendan Byrd AKA SineSwiper ([EMAIL PROTECTED])
Computer techie, Perl hacker, and all-purpose Internet guru
Resonator Software (http://www.ResonatorSoft.com/)
------------------------------
Subject: Re: difference between ext2fs and raiserfs
From: Johan Kullstam <[EMAIL PROTECTED]>
Date: Wed, 04 Apr 2001 01:47:42 GMT
"Peter T. Breuer" <[EMAIL PROTECTED]> writes:
> Rod Smith <[EMAIL PROTECTED]> wrote:
> > There are at least four journaling filesystems under development for
> > Linux:
>
> > - ReiserFS -- We've just been discussing this one.
> > - ext3fs -- ext2fs with journaling features added.
> > - XFS -- SGI's IRIX journaling filesystem, ported to Linux.
> > - JFS -- IBM's AIX and OS/2 journaling filesystem, ported to Linux.
>
> > Of these, ReiserFS is now included in the kernel (as of kernel 2.4.1).
> > I'm not sure what the status is on ext3fs. I hear that XFS is getting
> > quite stable, but I've never used it. The last I used JFS, it wasn't
>
> I'm using it experimentally, but over LVM and under RAID so I can't
> comment on its stabilty on its own. I've lost the partition a few
> times for no discernable reason (unmount, mount, and it refuses
> to mount and the recovery tool searches fruitlessly for a superblock).
> Probably more to do with lvm than xfs.
>
> I am running xfs 0.9 because that matched the 2.4.0 kernel I had the
> best .. and matched the lvm code. The xfs patch is quite invasive,
> so it's important to get a good match. The xfs list is very active with
> patches going in at about 10 to 20 a day. It'll be stable very soon.
>
> > really a workable Linux filesystem, but that was several months ago; I'm
>
> Ditto.
>
> > sure it's improved since then. I would imagine that the developers of
> > all of these filesystems want to see them included in the kernel.
>
> > Unfortunately, both ReiserFS and ext3fs suffer from the same file- and
> > partition-size limits as ext2fs. These are starting to become issues
> > for some people -- particularly the 4GB file-size limit. Therefore,
>
> It's 2GB. I wasn't aware that the largefile patches to the kernel
> didn't affect them (excuse my double negative) nor was I aware of
> difficulties with the 3GB limit in 2.4.* in general. I believe that
> neither e2fs nor the other fs's have any intrinsic difficulty with
> large files (we know e2fs doesn't, because it works on 64bit sparc
> with arpbitrary sized files). The obstacle used to be the return
> value from the block device seek function in the kernel, which
> was 32 bit, and represented the _absolute_ offset from the beginning of
> the file. In 2.4.0 that obstacle does not exist. I suspect that there
> is no FS imposed limit now ..
>
> For fun, I'll try making a 2.1GB file on xfs under 2.4.0 ...
>
> coming up ...
>
> ditserv2:/mnt/lab% ls -l
> total 1028
> -rw-r--r-- 1 root 2124414976 Apr 3 17:38 foo
>
> and failed ...
>
> Filesize limit exceeded
>
> Maybe it was my dd that baulked. dd and libc
> have to be compiled with largefile support to get the right seek
> function. But I KNOW that that's working because I am doing megaseeks
> across raw partitions with no trouble in code of mine. Well, the strace
> says dd got an error in write ...
>
> read(0, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
> 1048576) = 1048576
> write(1, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"...,
> 1048576) = -1 EFBIG (File too large)
> --- SIGXFSZ (File size limit exceeded) ---
> +++ killed by SIGXFSZ +++
>
> which means that the write to the FS was abended by the FS.
>
> No comment. The same thing occurred on an ext2fs in 2.4.0.
>
> > unless those limits are raised, neither of these filesystems will
> > really do as more than a stop-gap measure. OTOH, it's possible to
> > convert an existing ext2fs partition into an ext3fs partition without
> > losing data, so transitioning to it should be easy. (The others all
>
> I am beginning to feel that this really is the stable route. And if
> someone would kindly port e2compr ...
>
> > require backup/make filesystem/restore dances.) Both XFS and JFS are
> > 32-bit filesystems with much higher limits on file and partition sizes,
> > so they've got potentially bright futures. XFS has somewhat higher
>
>
> > limits, but they're both so high that I don't see it making much
> > difference. Which of these will win out in the end as the "standard"
> > Linux filesystem is something I'd not care to predict, although as I
> > say, I think XFS and JFS are the strongest long-term contenders.
>
> > All of this is IMHO, of course, and is based on my understanding of the
> > current situation. If that's wrong (say, if ReiserFS is easily extended
> > out to larger partition and file sizes), then my conclusions are
> > questionable, as well.
>
> I wasn't aware that RFS had a 2GB limit, as I mentioned.
there are two reiserfs types out there.
reiserfs and its disk partition for v2.2 linux kernels (available via
a patch) does have a 2GB limit.
reiserfs included in v2.4 does not (there's still a limit but it's
*much* larger). however, if the disk partition is in the old format
reiserfs will respect that and not make large files. you can convert
it it without pain though. you can allow large files when you mount
by setting mount -o conv. however, this will make the disk format
unusable with the old kernel/reiserfs.
> As we know,
> logically e2fs doesn't have one either .. but there appears to be
> some magic necessary. I don't know where it has to be applied. Libc?
> Tools?
>
> Peter
--
J o h a n K u l l s t a m
[[EMAIL PROTECTED]]
Don't Fear the Penguin!
------------------------------
Subject: Re: What's a good smtp server?
From: Johan Kullstam <[EMAIL PROTECTED]>
Date: Wed, 04 Apr 2001 01:51:07 GMT
[EMAIL PROTECTED] (Grant Edwards) writes:
> On 2 Apr 2001 19:11:20 -0800, Dowe Keller <[EMAIL PROTECTED]> wrote:
>
> >Hello all, I am looking for a small, easy to set up smtp server for
> >Linux.
>
> I'm rather fond of qmail <www.qmail.org>. It's fast, solid,
> secure and easy enough to build and install as long as you
> follow the directions -- or you can download an RPM. Others
> swear by Postfix. I've never liked sendmail too much.
i second the recommendation of qmail and want to tout david sill's
excellent site: <URL:http://web.infoave.net/~dsill/lwq.html>.
this gives a nice step-by-step recipe for installing qmail.
--
J o h a n K u l l s t a m
[[EMAIL PROTECTED]]
Don't Fear the Penguin!
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From: "�̹���" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.hardware,comp.os.linux.setup
Subject: [q]Network Card module probing!!!, Not working.
Date: Wed, 4 Apr 2001 10:50:34 +0900
hello, i'm a beginner in linux
My Network Card is "SMC1211TX", but it's not working...
I recompiled the rtl8139.o code, but it's not working....
The bellow is the situation
======================================================
# ifconfig eth0 up
SIOCSIFFLAGS : Resource temporarily unavaiable
# modprobe rtl8139
# lsmod
Modules Size Used by
rtl8139 11196 0 (autoclean) (unused)
# dmesg | more
..........
....
..
eth0 : SMC1211TX EzCard 10/100 (RealTek RTL8139) at 0x2000, IRQ 0,
.......
========================================================================
what should i do.... please give me advice!
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From: [EMAIL PROTECTED] (David Efflandt)
Subject: Re: How to setup the secure (ssh based) Xterminal?
Date: Wed, 4 Apr 2001 02:03:41 +0000 (UTC)
Reply-To: [EMAIL PROTECTED]
On Tue, 3 Apr 2001, Wojciech Zabolotny <[EMAIL PROTECTED]> wrote:
>Hi All,
>
>I need to setup the secure, open-ssh based Xterminals.
>It may work that way:
>1) On startup just the Xserver is run at :0
>2) The user logs in, and the DISPLAY is set to ":0"
>3) The user logs to the remote server with the "slogin -X -l user
> remote.server"
>4) Finally the user should run the window manager (in fact that command
> may be added to the slogin command line).
>
>And the step 4 causes the trouble, because each of the used remote servers
>may use different window manager... :-(
>Is there any way to start the standard Xsession (just like after running
>"startx") but from the ssh forwarded connection?
>(Or OTOH: is it possible to tell startx not to run the Xserver but to
>utilize the DISPLAY variable?)
Maybe I don't quite understand what you are trying to do. Normally the X
server (wm) is run locally. You can run X programs remotely that will
appear on your local display. I do that by setting an alias for startx in
my ~/.bashrc (or ~/.alias file in SuSE):
alias startx="ssh-agent startx"
I have not quite figured out how to do ssh-add automatically, but I run
that from an xterm so ssh-agent has my secret. Then I can ssh anywhere
which automatically sets DISPLAY to an ssh pipe and if I want to run a
remote X program it is piped back through ssh to my local X session.
What I also have not figured out how to do yet is use ssh-agent from GUI
login (I boot to runlevel 3).
If you want to run a remote X server or window manager, maybe you want to
look into VNC which is a multple OS server with remote viewers that can be
piped through ssh. The server defaults to twm, but can be set to
gnome-session, startkde or whatever. For example you can view and control
Windows from Linux, or Linux X from Windows, or Linux to Linux, etc.
--
David Efflandt [EMAIL PROTECTED] http://www.de-srv.com/
http://www.autox.chicago.il.us/ http://www.berniesfloral.net/
http://cgi-help.virtualave.net/ http://hammer.prohosting.com/~cgi-wiz/
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