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You are here: Home / Archives for Linux / RH124

RH124

Understand Your Network More Effectively with TCPDump

February 15, 2020 by The Urban Penguin

In this blog we will help you learn to understand your network more effectively with TCPDump and analyzing ping and traceroute, the basic connectivity checking tools. Key to running an effective network is being able to understand your network more effectively with TCPDump. TCPDump is a command line tool in Linux which may seem scary […]

Filed Under: RH124

SSH Public Key Authentication

December 18, 2019 by The Urban Penguin

ssh public key authentication

RHCSA 8 Study Guide Let me introduce you to how you can implement SSH Public Key Authentication for your clients to remote SSH servers in readiness for your RHCSA exam. Although the SSH server would normally be a remote server we demonstrate this with a single server for both the SSH client and SSH server. […]

Filed Under: RH124

Password Ageing

December 18, 2019 by The Urban Penguin

Linux Password Ageing

RHCSA 8 Study Guide In this blog we dice into Linux Password ageing and disabling Linux logins. Useful both for your real life Linux administration and exam objectives for many certification including the Red Hat RHCSA. We can use the passwd command to manage password ageing but the most specific command for this is chage. […]

Filed Under: RH124

Using nano in CentOS 7 to edit files

September 5, 2014 by The Urban Penguin

The great feature with practical based exams is that you can choose the way in which you accomplish a given task. If you are working towards your RHCSA exam for Red Hat 7 you will be glad to know that if you have to edit files you may use the GUI, and we already looked […]

Filed Under: RH124

Using gedit in CentOS 7 to edit text files

July 30, 2014 by The Urban Penguin

Using gedit to edit files in CentOS 7 There are many way to create, and edit text files in Linux; starting with one of the most simple ways we have gedit, or the gnome editor. Of course being a GUI tool you have to maintain access to the desktop of the machine that you are […]

Filed Under: RH124

Getting Help in CentOS 7 from the CLI

July 29, 2014 by The Urban Penguin

Getting Help in CentOS 7 If you are working for a Red Hat Linux Certification the exams are practical based so you do not need to remember options and switches in your head. As in the real world you can check from the command line the help systems. These range from the simple –help option  […]

Filed Under: RH124

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