CentOS 6 Install netcat

Netcat is one utility in NMap toolset, it maybe named as nc, ncat or netcat on different Linux distributions. (It’s ncat on CentOS 6).

On CentOS 6 netcat is not installed by default, to install it we can run following command

 

Then run following command to check netcat is installed correctly

 

Cannot install Docker on CentOS 6

Installing docker-ce on CentOS 6.9 got following error

 

To install docker on CentOS 6, run the following command

 

Then run

Its output is

Docker version 1.7.1, build 786b29d/1.7.1

 

We can see docker is installed successfully.