Search results for:
Table of Contents
This article is intended for Hostwinds clients who have chosen to install CentOS 7 to begin configuring and customizing the server using the command-line interface. We highly recommend taking a snapshot backup before making any modifications in case you need to restore it at any time. Below are some basic configurations you can view and configure to fit your needs. This article is meant to offer our Unmanaged clients some basic commands and information to help you get started with a clean install of CentOS 7 on your Instance.
Any commands that are preceded with a # are suggested to be using root user access. Commands preceded with a $ indicate that a regular user can perform these tasks.
Displaying Current Date and Time using one of the following commands
Changing Local Time
timedatectl set-timezone [time_zone]
Change [time_zone] to the time zone you prefer to use for your local time from an option on the list-timezones results
localectl set-locale LANG=[locale]
Replace [locale] above with the locale setting of your choice
yum search [string]
Replace [string] above with what you are searching for
yum install [package_name]
Replace [package_name] above with the package name
systemctl enable [service]
systemctl disable [service]
Replace [service] with the name of the service.
If you decide to use CSF instead of firewalld, here are the installation instructions:
rm -fv csf.tgz
tar -xzf csf.tgz
Enable csf and lfd using your favorite text editor to be started and taken out of testing. Just open the /etc/csf/csf.conf file and replace TESTING = "1" with TESTING = "0" and save this file.
Next, start csf:
systemctl start csf
systemctl start lfd
Now, enable csf and lfd to begin on startup:
systemctl enable csf
systemctl enable lfd
You can then configure csf and lfd by reading the documentation and configuration files in /etc/csf/csf.conf and /etc/csf/readme.txt directly or through the csf User Interface.
If you prefer to use firewalld with SELinux and not csf, the instructions are below:
yum install firewalld
systemctl enable firewalld
Set SELinux to enforce permanently so that SELinux policies are enforced, modify the /etc/selinux/config configuration file using your favorite text editor, and set this to enforce as seen below and save these changes.
If you have not already generated a key when creating your instance, or if you would like to add another key pair, you can do so with the help of the guide to Create a Strong SSH Key in Linux
# useradd [options] [user_name]
Use useradd –help to see the options to replace in [options] above and replace [user_name] with the username you would like to create.
# passwd [user_name]
Replace [user_name] above with the username.
# usermod -a -G [group_name] [user_name]
Replace [group_name] with the group name you want to assign the user to and the [user_name] with the desired user name you would like to assign to a group.
If you are having any trouble with our Managed Services or have any questions, please let us know to help you.
Written by Hostwinds Team / April 12, 2018