Skip to content
pontikis.net
  • Blog
  • WordPress
  • Labs
  • Write For Us
  • About
Search this website
Menu Close

tips

  1. Home>
  2. Blog>
  3. tips
Read more about the article How To Create A Strong Password Without Having To Remember It
Credits

How To Create A Strong Password Without Having To Remember It

  • Post author:Christos Pontikis
  • Post published:December 22, 2016
  • Post category:Network Security
  • Reading time:2 mins read

You can use a hash function, avialable in any operation system, for example sha256sum with a photo or an mp3 file, any file you can easily remember. For example, from…

Continue ReadingHow To Create A Strong Password Without Having To Remember It
Read more about the article How To Delete or Not Keep a Command in Bash History
Credits

How To Delete or Not Keep a Command in Bash History

  • Post author:Christos Pontikis
  • Post published:December 21, 2016
  • Post category:Linux Administration
  • Reading time:2 mins read

Delete a Command from Bash History Here I give some test commands to fill history: pontikis@ubuntu:~$ clear pontikis@ubuntu:~$ echo 1 1 pontikis@ubuntu:~$ echo 2 2 pontikis@ubuntu:~$ echo 3 3 pontikis@ubuntu:~$…

Continue ReadingHow To Delete or Not Keep a Command in Bash History
Read more about the article How to Display Grub Menu at Boot Time in Ubuntu
Credits

How to Display Grub Menu at Boot Time in Ubuntu

  • Post author:Christos Pontikis
  • Post published:October 25, 2016
  • Post category:Linux Administration
  • Reading time:2 mins read

In Ubuntu, Grub boot menu is hidden by default. You can display it by pressing "SHIFT" continuously at boot time. This is useful (among other cases) in case you want…

Continue ReadingHow to Display Grub Menu at Boot Time in Ubuntu
Read more about the article When to Restart Services or Reboot after Update on Debian or Ubuntu
Credits

When to Restart Services or Reboot after Update on Debian or Ubuntu

  • Post author:Christos Pontikis
  • Post published:October 19, 2016
  • Post category:Linux Administration
  • Reading time:3 mins read

After update Debian (or Ubuntu) using apt-get update && apt-get -V upgrade you need to know which services need restart and if system reboot is required (kernel upgrade). A common…

Continue ReadingWhen to Restart Services or Reboot after Update on Debian or Ubuntu
Read more about the article How to Start Youtube Playlist from Random Video
Credits

How to Start Youtube Playlist from Random Video

  • Post author:Christos Pontikis
  • Post published:August 6, 2014
  • Post category:Social Media
  • Reading time:1 mins read

If you want to start a Youtube playlist from random video, just add: &index=random_number to the src attribute of the embed code. The code To produce a random number, I…

Continue ReadingHow to Start Youtube Playlist from Random Video
  • 1
  • 2
  • 3
  • 4
  • …
  • 7
  • Go to the next page

Categories

Archives

NewsLetter

Click here to subscribe to our free email newsletter.
Unsubscribe anytime with a click.

LIKE OUR PAGE!

  • Opens in a new tab
  • Opens in a new tab
  • Opens in a new tab
  • Opens in a new tab
  • Opens in a new tab
  • Opens in a new tab
  • Opens in a new tab
  • Contact
  • Privacy
  • Terms
  • Credits
© Christos Pontikis 2013 - 2022
Close Menu