Do all routers have IPv6? Internet service providers (ISPs) will be upgrading to IPv6, and most personal computer operating systems support IPv6. However, many routers and servers currently in use don’t support it, making a connection between a device with an IPv6 address to a router or server that only supports IPv4 difficult.
What is localhost in IPv6? ipv6 localhost refers to the first address your computer receives when you configure your internet network settings. If your computer is connected to the internet via a ethernet cable, its IP address is normally 103.
What is VPN and VPC? A Virtual Private Cloud (VPC) allows you to virtually create a private and isolated network in the cloud. Just as a virtual private network (VPN) provides secure data transfer over the public Internet, a VPC provides secure data transfer between a private enterprise and a public cloud provider.
Can we change security group EC2? To change an AWS EC2 instance’s security group, open the Amazon EC2 Console and Select “Instances.” Click “Change Security Groups” under “Actions” and select the security group to assign an instance. You can remove pre-existing security groups by choosing “Remove” then save.
How many group owners can a file have?
All the three owners (user owner, group, others) in the Linux system have three types of permissions defined.Permissions are listed below:
permission
on a file
on a directory
r (read)
read file content (cat)
read directory content (ls)
How do I add a user to a group in Linux? You can add a user to a group in Linux using the usermod command. To add a user to a group, specify the -a -G flags. These should be followed by the name of the group to which you want to add a user and the user’s username.