Ubuntu Orange Screen - VM Display Memory

Fix orange state of Ubuntu virtual machine in VirtualBox

When you experience problem with Ubuntu virtual machine stuck on Orange screen without desktop access, you can overcome it by increasing video memory of VM.
Oracle Virtualbox

VirtualBox Error – same UUID as existing virtual machine

In Oracle Virtualbox, add virtual machine copies to list of orignal VM using this trick. However best approach is cloning VMs and not copy.
PHP Coding Tips

Split comma separated string into an array in PHP

split comma seperated string into an array in PHP using preg_split
PHP Coding Tips

Change Bootstrap Menu When Clicked – in PHP

Simple method to change Bootstrap menu when you click a menu. This is showcased in PHP however you can use this method in any programming…
Packet Tracer - ACL

CCNA Practice LAB – ACL

Download our free practice lab developed in Cisco Packet Tracer that helps you to practice Access Control List and understand the concept easily.
Packet Tracer HSRP

CCNA Practice LAB – HSRP

Download our free practice lab developed in Cisco Packet Tracer that helps you to practice HSRP. CCNA Practice Lab.

CCNA Practice LAB – Default Route and Static Routing

Download our free practice lab developed in Cisco Packet Tracer that helps you to practice Dynamic NAT and understand the concept easily. CCNA Practice Lab.

CCNA Practice LAB – Dynamic NAT

Download our free practice lab developed in Cisco Packet Tracer that helps you to practice Dynamic NAT and understand the concept easily. CCNA Practice Lab.

CCNA Practice LAB – NAT

Download our free practice lab (using Cisco Packet Tracer) and configuration steps to simulate and learn Static NAT and PAT for CCNA course.