The default Ubuntu firewall is ufw, with is short for “uncomplicated firewall.” Ufw is a frontend for the typical Linux iptables commands, but it is developed in such a way that basic firewall tasks can be performed without the knowledge of iptables.
administration
Redhat Disable Firewall – start, stop, enable, disable
firewalld is the default firewall on Red Hat Enterprise Linux, and it’s enabled by default, but it’s possible to Redhat disable firewall, and you’ll also see how to check firewall status in Linux. Normally, there should not be a need to disable the firewall, but it may be quite handy for testing purposes or other scenarios.
How to install Gnome and start GUI in Redhat Linux
This article will answer the following questions: How to start GUI in Redhat Linux. GNOME is the default desktop environment on Red Hat Enterprise Linux, but only if you opt for the full installation of the operating system. Other installations don’t include any GUI by default. If you’ve chosen a minimal install but don’t want to be limited to just the command line, you can install the GNOME desktop environment in a few simple commands.
How to open http port 80 in Redhat Linux using firewall-cmd
This article will provide you with an information on how to open port in Redhat Linux, and more specifically we will be talking about the HTTP port 80. firewalld is the default firewall program that comes pre-installed on Red Hat Enterprise Linux 7 and 8. By default, the firewall is turned on, meaning that a very limited number of services are able to receive incoming traffic.
RHEL default gateway configuration
The default gateway is an essential part of computer networking. When a computer attempts to communicate with another device, it will send packets to the default gateway. The default gateway, which is usually a router, will then direct the packets where they need to go.
Configure logrotate on Redhat Linux
Logrotate is a utility designed for administrators who manage servers that produce a high volume of log files. It helps them save some disk space, as well as to avoid a potential risk of making a system unresponsive due to the lack of disk space.
How to make sleep or suspend Fedora
Disregarding GUI, you can always put your Linux system to sleep from command line. Here is a Fedora suspend procedure step by step.
Convert ext3 to ext4 in Linux
The ext4 filesystem includes multiple improvements in terms of performance, over its predecessor ext3. Ext4 is not only faster than ext3, but can also handle much larger filesystems and files, and lots of other improvements under the hood. If you haven’t yet upgraded to ext4 on Linux, it’s definitely time to do so.
Hard drive hdparm speed test
The purpose of this tutorial is to describe some simple hard drive speed tests that you can perform using your Linux system and the command line tool hdparm.
Linux HDD sleep – how to enable and disable with hdparm
The purpose of this guide is to learn about enable or disable Linux HDD sleep. cover the steps necessary to change a hard drive’s sleep/standby mode timer on Linux. You can either enable standby mode on a storage device, disable standy completely, or adjust the current time it takes for a hard drive to enter standby.