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Old 04-10-2004, 02:11 AM   #1
tumana
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Registered: Mar 2004
Location: Belgium
Posts: 102

Rep: Reputation: 15
I wanna see garbled text!


Just a curiousity...

After a long session of sitting in front of my linux box configuring i don't know what, I was putting away my keyboard and mouse. My second machine doesn't have a desk so I store the K+M on a shelf in close reach.

Anyways, I must have pressed something because when I looked at my monitor again, expecting to see the usual
Code:
Mandrake Linux release 9.2 (FiveStar) for i586...
login screen, I saw nothing but garbled text.

It looked like shorewall was blurting stuff to the screen. I went over to my other machine and tested my webpages, ftp site, ... and they all worked. And as I accessed those things, more blurts on the first machines came onto the screen telling me exactly who was accessing the machine... me.

I pressed ctrl+alt+Fn and all ttys worked, but now I want to see that screen again.

Is it something I pressed? How can I make my monitor a real live feed from my shorewall logs?

Thanks in advance,
ian

Last edited by tumana; 04-10-2004 at 02:12 AM.
 
Old 04-11-2004, 08:29 PM   #2
theabyyss
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Registered: Aug 2001
Location: CT
Distribution: Debian Sarge (2.6.9-albooksleep) on a PPC
Posts: 64

Rep: Reputation: 15
i'm not sure how you might have accidentally triggered this, but you can actually cat output strings into other screens because linux sees screens as files. like my friends and i sometimes all log into one box and mess with eachother with commands like "cat > /dev/pts/0" and then whatever you type (as root) goes into that terminal screen. something like that must have happened, but i'm not sure how. side note: never cat your entire root partition's block device into your soundcard.
 
Old 04-12-2004, 03:26 AM   #3
tumana
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Registered: Mar 2004
Location: Belgium
Posts: 102

Original Poster
Rep: Reputation: 15
Well... little did I know that if I waited long enough it would do it again. I might just be a default setting to print some common message to the screen.

For example, no one will be logged on and it will blurt something like
Code:
Shorewall:newnotsyn: DROP:IN=eth0 OUT= MAC=...
For all I know someone could be port scanning me. Oh how it sucks to be ignorant!

Thanks,
 
  


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