This video will show you how to generate a Certificate Signing Request CSR on CentOS 8.
A CSR is normally sent to a certificate provider who will supply you with a certificate based from the CSR.
This video uses CentOS 8 Linux however the process should be much the same on all Linux operating systems.
The commands in this video are:
Hi there,
In this example I had a need to record boot up times in a file that i could access easily. To do so I decided to run a command on startup. This tutorial tool place on CentOS but the commands should also work on Ubuntu.
Step 1
Edit the rc.local file in vi by running:
sudo vi /etc/rc.local
Step 2
Add the following line to the file, update the home directory to represent your home directory.
Step 3
Give the executable permission to the rc.local file by running the following command:
chmod +x /etc/rc.d/rc.local
Step 4
Reboot the system by running:
sudo init 6
Step 5
When the machine reboots run the following command to insure the file has been created and that there is content in the file:
cat /home/darren/bootup.log
A full video tutorial can be found here:
You can statically assign DNS in Centos 7. In this example we will assign Googles DNS, which is:
8.8.8.8
8.8.44
To begin we will first edit the our internet adaptor, do so run the command:
sudo vi /etc/sysconfig/network-scripts/ifcfg-enpXXX
in our case we ran
sudo vi /etc/sysconfig/network-scripts/ifcfg-enp0s3
We changed the line
PEERDNS=yes
to:
PEERDNS=no
Next we need to edit the resolv.conf file:
sudo vi /etc/resolv.conf
nameserver 8.8.8.8
nameserver 8.8.4.4
Hi There,
In this tutorial I will show you how to RDP into your CentOS 7 Server. This tutorial will also work on a Redhat 7 server. In order to follow this tutorial you will need to be sure that you have CentOS 7 installed with the GNOME Desktop. If you haven’t done this yet be sure to follow this tutorial to get up to speed.
The first thing that we need to do is to add two repos to our CentOS server. The two commands that you need to run are:
Next we will install the xrdp software package and then start it as a service. The commands to do this are:
Now we need to allow the ports for xrdp through the firewall. After that we’ll need to restart the firewall service. This can be done by running these commands.
Finally we need to configure SELinux. To do so run these two commands:
We can now try to RDP to our CentOS 7 server.
First open RDP and type in the IP address of you CentOS 7 Server.
If you get certificate warnings click yes to continue.
Now enter your CentOS username and password
You will now be brought to your CentOS Desktop.
A full video of this tutorial can be seen here:
This tutorial will show you how to reset the root password on CentOs 7 / Redhat 7. As a health warning please be sure that when doing this you have taken a snapshot of your VM or if it’s a physical server that you follow the instructions very carefully. With that in mind lets get started.
Step 1
When the system boots up press e on this screen.
Step 2
In the screen that appears scroll down to the line were you see Linux 16
Now Change where its says ro to:
rw init=/sysroot/bin/sh
Then press ctrl + x
Step 3
You will now be in emergency mode which will look like the screen below:
Step 4
Type in the command:
chroot /sysroot
Step 5
Reset the root password by typing in:
passwd root
Step 6
No ensure that selinux will be relabelled by typing the command:
touch /.autorelabel
Step 7
Type in:
exit
Step 8
Now reboot by typing in:
reboot
In this tutorial you will learn how to install CentOS 7 on VMWare workstation 12. The first thing that you need to do to Install CentOS 7 is to download CentOS 7 from the CentOS website:
https://www.centos.org/download/
The version that you will need to download is the DVD ISO. Once you have downloaded the CentOS7 ISO, you will need to open VMWare workstation.
Once VMWare workstation is open you will then need to follow the following steps to ensure that CentOS 7 is installed.
This tutorial shows you how to install Joomla 3 on CentOS 7 / Redhat 7 Linux (RHEL).It shows you first how to download, unzip and move the Joomla files to the correct directory for apache.
Next it shows you how to download and install php including the php-mysqli extension that is needed by Joomla. You will then see how to configure Apache to see the Joomla files.
Next you will then configure permissions and set up your Joomla Database in MYSQL (MariaDB) Finally you will install Joomla.
The commands that you need to follow along with this tutorial are:
Downloading, Unzipping and Moving Joomla:
sudo Wget https://downloads.joomla.org/cms/joomla3/3-8-3/Joomla_3-8-3-Stable-Full_Package.zip?format=zip
Sudo mkdir Joomla
Sudo mv Joomla_3-8-3-Stable-Full_Package.zip\?format\=zip Joomla
Cd Joomla
Sudo unzip Joomla_3-8-3-Stable-Full_Package.zip\?format\=zip Joomla
Sudo rm Joomla_3-8-3-Stable-Full_Package.zip\?format\=zip
Sudo mv Joomla /var/www/html
Installing PHP
Sudo yum install php
Sudo yum install php-mysqli
Configuring Apache and Permissions
Sudo vi /etc/httpd/conf/httpd.conf
Sudo service httpd restart
Sudo chown apache:apache -R /var/www/html/Joomla
Sudo chcon -Rv –type=httpd_sys_rw_content_t /var/www/html
Configuring MYSQL / MariaDB
Mysql -u root -p
Create database joomla;
grant all on joomla.* to ‘darren’@’localhost’ identified by ‘password123’;
This video describes the process of installing Drupal 8 on CentOS 7. This tutorial takes place on a CentOS 7 machine but the commands will also work on a Redhat (RHEL) 7 Machine.
The commands that you need to follow along with this tutorial are:
This tutorial shows you how to install PHP 7 on CentOS 7.
This tutorial is on an CentOS 7 machine but the commands will also work on Redhat (RHEL) 7.
The commands that you need to follow along with this tutorial are:
This video shows how to log into a CentOs 7 server from a Windows machine using SSH keys. The video will show you how to generate the keys using Putty and then how to configure your CentOS 7 Server to allow you to authenticate into the server.
Putty is available to download from www.putty.org.
The commands that you need to follow along with the tutorial are:
sudo mkdir ~/.ssh
sudo chmod 700 ~/.ssh
sudo vi ~/.ssh/authorized_keys
sudo chown YourUserName:YourUserName ~/.ssh -R
sudo chmod 600 ~/.ssh/authorized_keys