Tag: CentOS

What is a Redirect?

A redirect is a web server function that will redirect traffic from one URL to another. Redirects are an important feature when the need arises. There are several different types of redirects, but the more common forms are temporary and permanent. In this article, we will provide some examples of redirecting through the vhost file, forcing a secure HTTPS connection, redirection to www and non-www as well as the difference between temporary and permanent redirects.

What is Webmin?

Webmin is a browser-based graphical interface to help you administrate your Linux server.  Much like cPanel or Plesk, Webmin allows you to set up and manage accounts, Apache, DNS zones, users and configurations.  As these configurations can get somewhat complicated Webmin works to simplify this process. The result is fewer issues during server and domain setup.  Which results in a stable server and a pleasant administration experience. Unlike Plesk or cPanel, Webmin is completely free and open to the public. Unfortunately, here at Liquid Web, we do not offer managed support for Webmin, but we are always willing to assist as much as possible when issues arise.   You can download Webmin from their site. Also, you can find some excellent documentation on this interface.

Configuring Multi-User FTP with User Isolation

This article is intended to give an overview of a chroot environment and configuring your FTP service for user isolation. This is done with a few lines within the main configuration file of the FTP service.

Have you ever needed to copy files from your local computer over to your Liquid Web VPS server? You may have previously used File Transfer Protocol (FTP) applications for this task, but FTP is prone to being insecure and can be challenging to work with over the command line. What if there was a better way? In this tutorial, we’ll be covering two popular utilities in the Linux world to securely assist in file transfers, rsync and lsyncd. We’ll show you how to install and use both in this article. Let’s dig in!

Editing a website's code is often needed to update a site, but doing this to the live website could create downtime and other unwanted effects. Instead, it's ideal to create an environment especially for developing new ideas.  In this tutorial, we will explore creating a development site specifically for CentOS servers.

There is a new exploit, rated as 7.8 severity level,  that affects major Linux distributions of RedHat Enterprise Linux, Debian 8 and CentOS on both VPS servers as well as dedicated servers, called Mutagen Astronomy. Mutagen Astronomy exploits an integer overflow vulnerability in the Linux kernel and supplies root access (admin privileges) to unauthorized users on the intended server. This exploit affects Linux kernel version dating back from July 2007 to July 2017.  Living in the kernel, the memory table can be manipulated to overflow using the create_tables_elf() function. After overwhelming the server, the hacker can then overtake the server with its malicious intents.

FTP (File Transfer Protocol) is one of the most popular methods to upload files to a server. There exist a wide array of FTP servers, such as vsftpd, you can use and FTP clients exist for every platform.

PostgreSQL supports multiple client authentication methods including: trust, reject, md5, password, gss, sspi, krb5, ident, peer, ldap, radius, cert, and pam. Here we’re only going to concern ourselves with two: ident and md5.

When connecting to PostgreSQL on Linux for the first time many admins have questions, especially if those admins are from the MySQL world. By default, when PostgreSQL is installed, a postgres user is also added.

Pre-Flight Check

• These instructions are intended specifically for checking your version of cPanel or WHM via the command line or the WHM dashboard.
• I’ll be working from a Liquid Web Managed CentOS 7 server, and I’ll be logged in as root.

Step #1: Log In to WHM

First, log in to WHM. You’ll arrive at your WHM dashboard: