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Old 09-21-2010, 07:07 AM   #1
pinga123
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What are pseudo-tty devices?


What are pseudo-tty devices? can any body guide me guide or tutorial where all the devices are listed with their use?

The reason for posting the thread is i m doing server hardening .It is not recommended to include pseudo-tty devices in /etc/securetty file .

Following are the statement from hardening guide.
Quote:
This file should only contain locally attached console devices, and must not contain any pseudo-tty devices
Correct me if i m wrong.
locally attached console devices which are normally determined using w command.
For example .
These ttys can be taken by physically logging in to machine and using (alt+f1-f6).Therefore we can have upto 6 local tty devices.


Are they begins with p.
following is a content from my /etc/securetty.
Quote:
# cat /etc/securetty
console
vc/1
vc/2
vc/3
vc/4
vc/5
vc/6
vc/7
vc/8
vc/9
vc/10
vc/11
tty1
tty2
tty3
tty4
tty5
tty6
tty7
tty8
tty9
tty10
tty11
ttyS0
xvc0

Last edited by pinga123; 09-21-2010 at 07:27 AM.
 
Old 09-21-2010, 07:34 AM   #2
prayag_pjs
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http://linux.die.net/man/7/pty
 
Old 09-21-2010, 09:42 AM   #3
onebuck
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Hi,

In addition to the 'man' you can look at the following to gain some understanding;
Linux Documentation Project
Rute Tutorial & Exposition
Linux Command Guide
Linux Newbie Admin Guide
LinuxSelfHelp
Getting Started with Linux



The above links and others can be found at 'Slackware-Links'. More than just SlackwareŽ links!
 
  


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