Linux-Misc Digest #997, Volume #18 Fri, 12 Feb 99 18:13:17 EST
Contents:
Re: spoofing/hacking? (John Meissen)
Top command (Christopher Michael Collins)
Re: Linux 2.2.0 and serial ports (Robert Tuck)
Re: FreeBSD / Linux project (Tom Keats)
Re: Caller ID ([EMAIL PROTECTED])
Re: I'm a neewbee to Linux. setting up for the 1st time (Philip Charles)
3Com Impact IQ ISDN and LINUX ([EMAIL PROTECTED])
Re: creating a bootable CD (James Youngman)
Re: cpu processes used up??? (Akop Pogosian)
Re: how to install apache as a web server , (Ed Robbins)
Re: Flush swap manually? ([EMAIL PROTECTED])
Re: Network card 3com 3C509B Etherlink 3 - problems anyone had this?? (John Forkosh)
[Q]How to print image from commandline? (Vachi)
Re: gcc for Linux (Michael Meissner)
Re: linux security (Akop Pogosian)
Re: Top command ("David Z. Maze")
Re: Flush swap manually? ("David Z. Maze")
Re: WANTED: Methods of authenticating files. (John Hasler)
Re: Advice for Microsoft-haters (Jay Lessert)
RPM says Data Type 9 not supported (David Henry)
Re: Looking for nice editor, FTP a must. (Frank Sweetser)
----------------------------------------------------------------------------
From: John Meissen <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.networking
Subject: Re: spoofing/hacking?
Date: Fri, 12 Feb 1999 11:04:35 -0800
A followup to my earlier post...
John Meissen wrote:
>
> I have someone who appears to be trying to spoof their way into
> my network.
Last night I did some more digging.....I downloaded a handful of packet
sniffers, interface monitors, etc, and tried to capture some more data.
The other side of the firewall is a cable modem. The problem is that
the source address is the same as one of my internal machines, which
is why I'm getting the message - it appears like someone is trying to
talk to an inside machine from the outside, while pretending to be
another machine on the inside.
They were very predictable - packets coming across at exactly 7.5
minutes
during the slow periods. So I just sat and waited and captured a block
of
packets around the time I was expecting them.
After looking at the stuff and pondering for a few minutes I think I
understand what happened - some PC person got a cable modem and decided
to set up a LAN of Windows boxes. They just happened to pick the same
internal network IP addresses as me. Unfortunately, they configured
their IP forwarding wrong, and their internal traffic is getting spewed
out onto the cable modem network. It shows up on my ethernet interface
and the firewall routing thinks it's for one of my machines.
I assume it's coming from the same leg of the cable net, since I don't
think any reasonably intelligent switch would forward those packets.
I forwarded the data, with the MAC address, to TCI/@Home to see if
they could identify the user from the MAC address and politely ask him
to fix his system. Meanwhile I just changed my addresses, which is
pretty
easy since I'm reconfiguring my systems anyway right now.
But I am learning a lot about network monitoring :-) If there's any
interest
I may post some summaries of how often people try to gain access to my
system.
------------------------------
Subject: Top command
From: [EMAIL PROTECTED] (Christopher Michael Collins)
Date: Fri, 12 Feb 1999 20:47:27 GMT
Hello,
How do I interpret the " Mem " line while using the
Top command.
While running only linux and a single bash shell it looks like this:
Mem: 31224K av, 23656K used, 7568K free, 3748K shrd, 6200K buff
What does the 'used' mean? Why would such a large % of available
memory be used with little to nothing running?
What other techniques are there to monitor memory,
and how to make memory use most efficient?
--
--Chris
------------------------------
From: Robert Tuck <[EMAIL PROTECTED]>
Subject: Re: Linux 2.2.0 and serial ports
Date: Fri, 12 Feb 1999 20:48:27 +0000
Reply-To: [EMAIL PROTECTED]
Aha, the serial ports only work if you're root (duh!). This would
explain why things like X work. But I never needed to be root to do all
this before, so what's changed?
Is there a neat way to put things back how they were, without either
doing everything as root or changing all my executables suid root?
--
Robert.
**********************************
* Wintalk me on *
* [EMAIL PROTECTED] *
* *
* ICQ - 28935507 *
* Court Rules Boxer Shorts *
* Are Indeed Underwear: *
* Journal of Commerce, April 20 *
**********************************
------------------------------
From: Tom Keats <[EMAIL PROTECTED]>
Crossposted-To: comp.unix.bsd.freebsd.misc
Subject: Re: FreeBSD / Linux project
Date: Fri, 12 Feb 1999 12:49:54 -0800
Donn Miller wrote:
>
[snip]
> based loosely around the FreeBSD "core team member" concept. What do
> you think about this?
>
> Donn
As my gf would say, Eeewwwwwww! ;)
"Loosen" the FreeBSD "core team member" concept? I don't think so.
I doubt that the FSF/GNU would like the idea at all.
Actually, i think the world is better off if the Linuxers continue to
develop Linux, and *BSD continues to enjoy the quiet discretion of
relative obscurity.
Such a merge might distance FreeBSD from other *BSD projects.
Licensing and other differences would lead to too much contention,
in all sorts of meanings, to get anything done.
The more choices of available OS's in various flavours, the better.
my .02, anyway.
cheers,
tom
--
Why not just drop everything and go fishin'?
remove NO_SPAM. from address to reply
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: Caller ID
Date: Fri, 12 Feb 1999 19:13:12 GMT
Or Xcallerid - see my CAller ID FAQ for details
Alastair
In article <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] (Mike Cole) wrote:
> In article <79nass$[EMAIL PROTECTED]>, Ira M. Bargon III wrote:
> >Does anyone know where i can downlad a Caller ID program for Linux. If i
> >could get this then i wouldnt ever need to log on to Win98 ever again. Boy
> >would that be great.
>
> ftp://alpha.greenie.net/pub/mgetty/source/
>
> mgetty has a few parts to it in the Debian distrobution, I am sure
> they all come from this source tree. The part you will need is vgetty. It
> can be a voice mail/answering machine. And if your modem supports it, it
> can handle caller ID. You may use it to hang-up on any caller you don't
> want to get through. Or even leave special messages for a certain caller.
>
> Get it, read the docs, and enjoy!
>
Computer Caller ID FAQ : http://www.cloud9.u-net.com/callerid.htm
============= Posted via Deja News, The Discussion Network ============
http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
------------------------------
From: [EMAIL PROTECTED] (Philip Charles)
Subject: Re: I'm a neewbee to Linux. setting up for the 1st time
Date: 12 Feb 1999 21:21:35 GMT
Reply-To: [EMAIL PROTECTED]
Try the documentation at www.debian.org
On Wed, 10 Feb 1999 21:56:33 -0800, Larry <[EMAIL PROTECTED]> wrote:
>This is a parts drawer computer to try it out on, and I have an AOC
>monochrome vga 14" Model MM-413s is there any information out there on the
>scan rates etc for using it? or any advice?
>thanks
>
>
>
--
Philip Charles. My home page:- http://crash.ihug.co.nz/~philipc
------------------------------
From: [EMAIL PROTECTED]
Subject: 3Com Impact IQ ISDN and LINUX
Date: Fri, 12 Feb 1999 20:53:38 GMT
Does Red Hat 5.2 have support for the 3Com Impact IQ ISDN adapter, connected
through a HAYES ESP Serial card?
============= Posted via Deja News, The Discussion Network ============
http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
------------------------------
From: James Youngman <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,comp.os.linux.hardware
Subject: Re: creating a bootable CD
Date: 11 Feb 1999 22:04:51 +0000
[EMAIL PROTECTED] (Peter Stein) writes:
> I've scoured the ftp archives for a HOWTO and searched the WWW, but can't
> find any reference to a procedure for creating a bootable Linux CD. I
> have found procedures for other OSes, but not Linux. If you have info
> please send email. Thanks.
man mkisofs
--
ACTUALLY reachable as @free-lunch.demon.(whitehouse)co.uk:james+usenet
------------------------------
From: Akop Pogosian <[EMAIL PROTECTED]>
Crossposted-To: ucb.os.linux
Subject: Re: cpu processes used up???
Date: 12 Feb 1999 21:42:46 GMT
Strange, I have noticed a similar problem on my system. Consider the
following scenario, I su to root in xterm, then fire up top or less.
Now, if I quit xterm without closing top (or less), top program hangs
and uses up all of CPU cycles according to another instance of top
running and then I have to kill the offending process. Such thing never
happens when I am a regular user. Does any one know why this happens?
In ucb.os.linux Gordon Vrdoljak <[EMAIL PROTECTED]> wrote:
> Hello, I am getting problems of errant jobs on my redhat 5.2 linux
> (2.2.1 kernel)- 64
> megs of ram on a pentium II 266. This is one example of the control
> panel run by root,
> 824 root 14 0 1624 1624 1224 R 0 90.8 2.5 980:54
> control-pane
> it is using over 90% of cpu resources - way too much! Is this normal to
> have jobs
> like this left hanging? Netscape and star office often leave things
> hanging and need to
> be killed as well.
This is a common thing for Netscape on linux. If you browse regular
web sites (without Java applets) it seems to be stable, but once you
open a web page with Java applets in it, anything can happen...
> Here is an example of the full output from top: Also, I was wondering
> if all these processes should be running as 'root'? Upon rebooting, I
> often get a lot of memory
> back - about 30 megs or so. After running for a day or so, I only have
> 2 megs free from
> memory.
> 43 processes: 40 sleeping, 3 running, 0 zombie, 0 stopped
> CPU states: 98.3% user, 1.5% system, 0.0% nice, 0.7% idle
> Mem: 63224K av, 61632K used, 1592K free, 32604K shrd, 3324K buff
> Swap: 130748K av, 384K used, 130364K free 33912K
> cached
> PID USER PRI NI SIZE RSS SHARE STAT LIB %CPU %MEM TIME
> COMMAND
> 824 root 18 0 1624 1624 1224 R 0 97.3 2.5 983:05
> control-pane
> 1101 gordon 1 0 728 728 564 R 0 0.7 1.1 0:02 top
> 1132 root 0 0 896 896 556 S 0 0.5 1.4 0:00 su
> 1133 root 0 0 808 808 632 S 0 0.5 1.2 0:00 bash
> 214 root 0 0 400 396 324 S 0 0.1 0.6 0:00
> syslogd
> 342 root 0 0 12888 12M 1540 S 0 0.1 20.3 3:41 X
> 1103 gordon 0 0 820 820 640 S 0 0.1 1.2 0:00 bash
> 1 root 0 0 388 388 328 S 0 0.0 0.6 0:03 init
> 2 root 0 0 0 0 0 SW 0 0.0 0.0 0:00
> kflushd
> 3 root 0 0 0 0 0 SW 0 0.0 0.0 0:00
> kswapd
> 65 root 0 0 312 308 260 S 0 0.0 0.4 0:00
> kerneld
> 200 bin 0 0 276 272 212 S 0 0.0 0.4 0:00
> portmap
> 223 root 0 0 612 608 280 S 0 0.0 0.9 0:00 klogd
> 234 daemon 0 0 284 264 208 S 0 0.0 0.4 0:00 atd
> 245 root 0 0 448 444 368 S 0 0.0 0.7 0:00 crond
> 256 root 0 0 372 364 304 S 0 0.0 0.5 0:00 inetd
> 267 root 0 0 384 376 308 S 0 0.0 0.5 0:00 lpd
> 284 root 0 0 668 560 440 S 0 0.0 0.8 0:00
> sendmail
> 296 root 0 0 256 244 208 S 0 0.0 0.3 0:00 gpm
> 307 root 0 0 500 416 304 S 0 0.0 0.6 0:00 smbd
> 316 root 0 0 652 648 496 S 0 0.0 1.0 0:03 nmbd
> 332 root 0 0 296 296 248 S 0 0.0 0.4 0:00
> mingetty
> 333 root 0 0 296 296 248 S 0 0.0 0.4 0:00
> mingetty
> 334 root 0 0 296 296 248 S 0 0.0 0.4 0:00
> mingetty
> 335 root 0 0 296 296 248 S 0 0.0 0.4 0:00
> mingetty
> 336 root 0 0 296 296 248 S 0 0.0 0.4 0:00
> mingetty
> 337 root 0 0 296 296 248 S 0 0.0 0.4 0:00
> mingetty
> 338 root 0 0 1016 1016 864 S 0 0.0 1.6 0:00 xdm
> 340 root 0 0 140 120 100 S 0 0.0 0.1 0:00
> update
> 842 root 0 0 1684 1684 1328 S 0 0.0 2.6 0:00 xdm
> 995 gordon 0 0 1312 1312 884 S 0 0.0 2.0 0:01 fvwm2
> 1076 gordon 0 0 788 788 652 S 0 0.0 1.2 0:00
> FvwmTaskBar
> 1077 gordon 0 0 752 752 640 S 0 0.0 1.1 0:00
> FvwmButtons
> 1079 root 0 0 2080 2080 1248 S 0 0.0 3.2 0:00
> nxterm
> 1080 gordon 16 16 1272 1272 1044 S N 0 0.0 2.0 0:00 xload
> 1081 gordon 0 0 820 820 640 S 0 0.0 1.2 0:00 bash
> 1082 gordon 0 0 700 700 592 S 0 0.0 1.1 0:00
> FvwmPager
> 1098 gordon 0 0 756 756 580 S 0 0.0 1.1 0:00
> telnet
> 1099 root 0 0 2072 2072 1244 R 0 0.0 3.2 0:01
> nxterm
> 1100 gordon 0 0 820 820 640 S 0 0.0 1.2 0:00 bash
> Any comments appreciated - please send them to
> [EMAIL PROTECTED]
> as well as the newsgroup.
> Gordon.
------------------------------
From: Ed Robbins <[EMAIL PROTECTED]>
Subject: Re: how to install apache as a web server ,
Date: Fri, 12 Feb 1999 21:40:58 +0000
Reply-To: [EMAIL PROTECTED]
If your using a well known distrubution like Red Hat or S.u.S.e then chances are
it's already installed. If not, go to http://www.apache.org and download apache
1.3.4. Unzip and untar and follow the instructions in the INSTALL file. I just
did it and it took me about 10 minutes to do.
Ed
[EMAIL PROTECTED] wrote:
> Hello,
>
> I have just begin to work with linux and I vwould like to know how to install
> apache as a web server.
>
> Thanks.
>
> -----------== Posted via Deja News, The Discussion Network ==----------
> http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: Flush swap manually?
Date: 12 Feb 1999 14:15:46 PST
In article <BKIw2.52$[EMAIL PROTECTED]>,
oak <[EMAIL PROTECTED]> writes:
> Anyone know how I can manually flush swap?
Yes. I do it by:
swapoff -a; swapon -a
> I need to have RAM and swap in the same pristine state they were in
> when I first booted the system.
That should do it.
------------------------------
From: [EMAIL PROTECTED] (John Forkosh)
Crossposted-To: comp.os.linux.networking
Subject: Re: Network card 3com 3C509B Etherlink 3 - problems anyone had this??
Date: 12 Feb 1999 17:18:07 -0500
Al Dev ([EMAIL PROTECTED]) wrote:
: I installed redhat 5.2 on pentium 90 box having the 3com 3c509B
: Etherlink 3 network card.
: The networking does not work.
: if I do -
: # ifconfig eth0 up
: it says SIOCSIFFLAGS: Resource temporarily not available
: ifconfig eth0 gives
: IRQ 10 address 0020 af ea 85 b6
: Anyone had this problem? How to get around this one?
: I have another box which has 3c59x card and it works fine.
I'm not sure about that error, but I do know you have to
run the DOS program that come with the board to turn
off pnp and to turn off autodetect (set it for 10baseT
or 10base2 explicitly). If you haven't done that,
give it a try and maybe the error will go away.
John ([EMAIL PROTECTED])
------------------------------
From: Vachi <[EMAIL PROTECTED]>
Subject: [Q]How to print image from commandline?
Date: Sat, 13 Feb 1999 06:55:21 +0900
Hi everybody,
Sorry for another question. I am still new to linux
and the printing-howto did not contain the information.
How can I print out image file like JPEG from command
line? I tried lpr filename.jpg but it does nothing. it
does not put the file in printing queue. Is the only way
is to print it from programs' menu?
I'm using Canon BJ-240 on linux 2.0.36. The printcap
is as follow:
(I'm using aps filter 4.91)
ascii|lp1|bj200-a4-ascii-mono|bj200 ascii mono:\
:lp=/dev/lp1:\
:sd=/usr/spool/bj200-a4-ascii-mono:\
:lf=/usr/spool/bj200-a4-ascii-mono/log:\
:af=/usr/spool/bj200-a4-ascii-mono/acct:\
:if=/usr/lib/aps-4.91/filter/aps-bj200-a4-ascii-mono:\
:mx#0:\
:sh:
#
lp|lp2|bj200-a4-auto-mono|bj200 auto mono:\
:lp=/dev/lp1:\
:sd=/usr/spool/bj200-a4-auto-mono:\
:lf=/usr/spool/bj200-a4-auto-mono/log:\
:af=/usr/spool/bj200-a4-auto-mono/acct:\
:if=/usr/lib/aps-4.91/filter/aps-bj200-a4-auto-mono:\
:mx#0:\
:sh:
#
lp3|bj200-a4-ascii-color|bj200 ascii color:\
:lp=/dev/lp1:\
:sd=/usr/spool/bj200-a4-ascii-color:\
:lf=/usr/spool/bj200-a4-ascii-color/log:\
:af=/usr/spool/bj200-a4-ascii-color/acct:\
:if=/usr/lib/aps-4.91/filter/aps-bj200-a4-ascii-color:\
:mx#0:\
:sh:
#
lp4|bj200-a4-auto-color|bj200 auto color:\
:lp=/dev/lp1:\
:sd=/usr/spool/bj200-a4-auto-color:\
:lf=/usr/spool/bj200-a4-auto-color/log:\
:af=/usr/spool/bj200-a4-auto-color/acct:\
:if=/usr/lib/aps-4.91/filter/aps-bj200-a4-auto-color:\
:mx#0:\
:sh:
#
raw|lp5|bj200-a4-raw|bj200 auto raw:\
:lp=/dev/lp1:\
:sd=/usr/spool/bj200-raw:\
:lf=/usr/spool/bj200-raw/log:\
:af=/usr/spool/bj200-raw/acct:\
:if=/usr/lib/aps-4.91/filter/aps-bj200-a4-raw:\
:mx#0:\
:sh:
------------------------------
From: Michael Meissner <[EMAIL PROTECTED]>
Subject: Re: gcc for Linux
Date: 12 Feb 1999 16:42:00 -0500
[EMAIL PROTECTED] (AME) writes:
> Hi all,
> Is there a free gcc compiler for Linux? Where can I find it?
> Thanks
Well considering you can't build the linux kernel without GCC (or at least
without a compiler that understands the GCC asm extension), yes GCC is
available. It should be in just about any distribution. Under newer RedHat
systems, a crufty old gcc is installed as /usr/bin/gcc and the newer egcs-based
gcc is installed as /usr/bin/egcs by default.
--
Michael Meissner, Cygnus Solutions (Massachusetts office)
4th floor, 955 Massachusetts Avenue, Cambridge, MA 02139, USA
[EMAIL PROTECTED], 617-354-5416 (office), 617-354-7161 (fax)
------------------------------
From: Akop Pogosian <[EMAIL PROTECTED]>
Crossposted-To: ucb.os.linux
Subject: Re: linux security
Date: 12 Feb 1999 21:56:17 GMT
Hi, I live in residence halls. This kind of things happen to me all the
time. You should should probably not worry about this imapd probe. Most
likely, the offenders were looking for someone who was running an exploitable
version of imapd. I expect that within 3 months someone will start probing
university computers for an exploitable version of ftpd... The important
thing is always to stay up to date with the updates and bug fixes for
software that you use. Also, it is a good idea to turn off all network
services that you don't really need, use ssh whenever you can, etc.
Linux Security Howto is a nice document about basic Linux/Unix security.
It should be in your /usr/doc/HOWTO directory.
Akop
In ucb.os.linux Gordon Vrololjak <[EMAIL PROTECTED]> wrote:
> Hello,
> Going through my /var/log/secure file on redhat 5.2 linux I find the
> following mysterious people trying to connect. Their address via nslookup
> is posted just beneath the log entry. Are they doing anything bad, and is
> there a way of blocking them or other hackers? I've disabled httpd
> already.
> Feb 12 01:27:11 h241a-2 imapd[881]: connect from 208.255.69.76
> Name: 1Cust76.tnt25.sfo3.da.uu.net
> Address: 208.255.69.76
> Feb 11 20:30:36 h241a-2 imapd[865]: connect from 24.234.30.217
> Name: usdiamond.com
> Address: 24.234.30.217
> Feb 2 22:48:25 h241a-2 imapd[2295]: connect from 205.242.182.67
> Feb 2 22:48:25 h241a-2 imapd[2295]: error: cannot execute
> /usr/sbin/imapd: No such file or directory
> Nslookup: address non-existent
> I've got kernel 2.2.1 running and updated the rpm for wu-ftpd as well as
> netscape and a few others from updates.redhat.com
> Please send any comments to me at: [EMAIL PROTECTED] as well
> as the newsgroup. Any and all advice appreciated. Thanks.
> Gordon.
> \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
> Gordon Ante Vrdoljak Ecosystem Sciences
> ICQ 23243541 http://nature.berkeley.edu/~gvrdolja Hilgard Hall #3110
> [EMAIL PROTECTED] UC Berkeley
> phone (510) 643-9951 Berkeley CA
> fax (510) 643-2940 94720-3110
------------------------------
From: "David Z. Maze" <[EMAIL PROTECTED]>
Subject: Re: Top command
Date: 12 Feb 1999 17:47:14 -0500
Christopher Michael Collins <[EMAIL PROTECTED]> writes:
CMC> While running only linux and a single bash shell it looks like this:
CMC>
CMC> Mem: 31224K av, 23656K used, 7568K free, 3748K shrd, 6200K buff
CMC>
CMC> What does the 'used' mean?
'used' = 'av' - 'free'
It's the sum of memory used by running programs, shared libraries,
kernel buffers, and cache, less the amount of data in swap.
CMC> Why would such a large % of available memory be used with little
CMC> to nothing running?
Of the 23656K used, 9948K is used for things that aren't just program
data. There's also the "cached" number on the next line which should
be subtracted out.
CMC> What other techniques are there to monitor memory, and how to
CMC> make memory use most efficient?
The 'free' command will give you an instant snapshot of memory use.
In general, the kernel aims to minimize the amount of "free" memory.
In particular, it can allocate "free" memory as cache, which helps
speed up disk accesses and can be thrown away almost without cost if
more physical memory is needed. So you shouldn't be worried that you
have no "free" memory.
--
David Maze [EMAIL PROTECTED] http://donut.mit.edu/dmaze/
"Hey, Doug, do you mind if I push the Emergency Booth Self-Destruct Button?"
"Oh, sure, Dave, whatever...you _do_ know what that does, right?"
------------------------------
From: "David Z. Maze" <[EMAIL PROTECTED]>
Subject: Re: Flush swap manually?
Date: 12 Feb 1999 17:51:37 -0500
Please correct your From: line to be a valid mail address. Corrected
in the citation.
oak <[EMAIL PROTECTED]> writes:
oak> This doesn't seem t be the case because last time my system used
oak> swap I exited all my memory extensive applications and swap was
oak> still being used according to "free" AND my hard drive light
oak> stayed on!
The kernel probably only swaps things in as they're needed.
oak> I need to have RAM and swap in the same pristine state they were
oak> in when I first booted the system.
Why?
In general, the kernel does its best to make sure memory is used
efficiently. Having all the data from all your applications in
physical memory isn't necessarily optimal: if a program hasn't been
used in a while but disk is being used heavily, it makes sense to swap
out the program to increase disk cache. I *think* the kernel does
this.
--
David Maze [EMAIL PROTECTED] http://donut.mit.edu/dmaze/
"Hey, Doug, do you mind if I push the Emergency Booth Self-Destruct Button?"
"Oh, sure, Dave, whatever...you _do_ know what that does, right?"
------------------------------
From: John Hasler <[EMAIL PROTECTED]>
Subject: Re: WANTED: Methods of authenticating files.
Date: Fri, 12 Feb 1999 20:54:09 GMT
Gary Momarison writes:
> Someone would do the Linux community a favor if he would follow up with
> some cook-book methods for authenticating files or links to the same.
man md5sum.
--
John Hasler This posting is in the public domain.
[EMAIL PROTECTED] Do with it what you will.
Dancing Horse Hill Make money from it if you can; I don't mind.
Elmwood, Wisconsin Do not send email advertisements to this address.
------------------------------
From: [EMAIL PROTECTED] (Jay Lessert)
Crossposted-To: alt.linux,alt.os.linux,comp.os.linux.advocacy
Subject: Re: Advice for Microsoft-haters
Date: 12 Feb 1999 14:00:40 -0800
In article <[EMAIL PROTECTED]>,
James Ewing <[EMAIL PROTECTED]> wrote:
>The Manhattan project made two kinds of bombs - a Uranium bomb (Fat
>Man) and a Plutonium bomb (Little Boy). Evidently a Uranium bomb is easier
>to detonate than a Plutonium bomb because it reaches critical mass more
>easily (physists are welcome to flame me on this point!).
Let's get it right. The U-235 bomb was Little Boy. The Pu bomb was Fat Man.
>Plutonium bomb. The one live test in New Mexico was of a Uranum 235 bomb
>and I think the politicians and scientists were curious if the Plutonium
>bomb would work. It answered their questions, but was a bit rough on the
>poor residents of Nagasaki...
The Trinity test was a Fat Man bomb, *not* U-235. The U-235 Little Boy
"gun bomb" was dropped without a live test, because:
1) Little Boy contained what was at the time the entire world's
supply of U-235. The gun bomb needed a large quantity of
highly enriched U235, which was very expensive and difficult to
produce. It would be months before sufficient U-235 would be
produced to build a second bomb (I don't know if a second
Little Boy was ever produced).
2) The designers were "very* confident that Little Boy would
work. As fission bombs go, U-235 gun bombs are apparently a
"no-brainer". :-)
The Fat Man Pu bomb, on the other hand, used a substantially smaller
quantity of easier-to-produce Pu (good), but required the complex HE
lense structure you refer to. Both the HE lenses and the detonation
electronics were difficult to design and fabricate. The designers were
far from certain that the whole thing would work.
--
Jay Lessert Portland, Oregon USA [EMAIL PROTECTED]
------------------------------
From: David Henry <[EMAIL PROTECTED]>
Subject: RPM says Data Type 9 not supported
Date: Fri, 12 Feb 1999 23:39:11 +0200
I am running a Red Hat 5.0 systen with rpm 2.2.7, cpio 2.4.2.
When trying to load any package from my new Red Hat 5.2 disk I get the
message
Data Type 9 not supported
Even if I copy a file from the CD to /tmp then do, say, rpm -q -p
<filename> I
get the same message.
The file header seems to be OK i.e magic numbers ed ab ee db 03 00 etc.
Any ideas? There is no FAQ on the disk to help me.
------------------------------
From: Frank Sweetser <[EMAIL PROTECTED]>
Subject: Re: Looking for nice editor, FTP a must.
Date: 12 Feb 1999 16:25:29 -0500
James Youngman <[EMAIL PROTECTED]> writes:
> Chad M. Townsend <[EMAIL PROTECTED]> writes:
>
> > I am looking for a editor like 'Codewrite for win95'. The most important
> > feature I need is the ability for it to be able to FTP files in and out. Like
> > BBEdit for Macs, anyone see anything like that?
>
>
> > Does emacs do that?
>
> Yes. See "ange-ftp" in the documentation.
>
> It will also tell you what the time is (western or Mayan calendars),
> remind you that it's your wife's birthday, remind you *again* that
> it's your wife's birthday, and that you really should go home now,
> have several windows open on machines several thousand miles apart,
> play Sokoban, syntax-highlight your code, hide copyright statements in
> edited code, hide the code inside inactive #ifdefs, provide code
> navigation, word completion, and bracket-balancing, send email, read
> Usenet news, automatically update change logs, transparently handle
> source code control systems, warn you when your laptop battery is low,
> highlight the differences between versions of files, edit tar files,
> simulate Conway's Life (someone has to have one), play an adventure
> game, drive TeX, make fun of the NSA, and provide tailored modes for
> several dozen programming languages.
>
> Oh, and take up lots of disk space.
and you forgot 3 full featured email packages (4 if you count gnus), browse
the web (even does tables! =), and compiles elisp code to bytecode =)
--
Frank Sweetser rasmusin at wpi.edu fsweetser at blee.net | PGP key available
paramount.ind.wpi.edu RedHat 5.2 kernel 2.2.1 i586 | at public servers
Now I know someone out there is going to claim, "Well then, UNIX is intuitive,
because you only need to learn 5000 commands, and then everything else follows
from that! Har har har!"
(Andy Bates in comp.os.linux.misc, on "intuitive interfaces", slightly
defending Macs.)
------------------------------
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