The Linux Juggernaut

1)Define a deamon?

2)Can we use crontab to run a script per second? if yes how? if no why?

3)How to create a deamon with shell scripting?

4)What is DDNS and how it works?

5)Which mail server is secure  Sendmail or Postfix?

6)How can i check exit status of my previous command?

7)I have a file each line contains “/var/www/html”, replease this entry in all lines with “/home/xyz/red”  with single command or an editor

8)How … Continue Reading