Tag : Security

Blog

Windows: Fix Auth Errors When Modifying Users’ File Permissions

Viking Coin
When you attempt to add or remove users from file and folder permissions within Windows Exporer, a logon box appears and does not accept your administrator username and password.  This may prevent you from modifying the permissions. Problem Cause By default, all Windows servers at sxi.io Web are connected to......
Blog

Information on CVE-2015-3456 QEMU Vulnerability (VENOM)

Viking Coin
Overview VENOM, or Virtualized Environment Neglected Operations Manipulation, was made public on May 13, 2015. The vulnerability is in QEMU, a generic and open source machine emulator and virtualizer that is utilized by Xen, KVM, and other modern hypervisors / virtualization platforms. Impact Specifically a flaw with how QEMU handles......
Blog

Update and Patch OpenSSL for Heartbleed Vulnerability

Viking Coin
What is OpenSSL? OpenSSL is a common cryptographic library which provides encryption, specifically SSL/TLS, for popular applications such as Apache (web), MySQL (database), e-mail, virtual private networks (VPNs), and more. What is “the Heartbleed Bug”? The Heartbleed Bug is a severe vulnerability in OpenSSL, known formally as “TLS heartbeat read......
Blog

How to Start and Enable Firewalld on Fedora 20

Viking Coin
Note: Please note that this article is considered legacy documentation because Fedora 20 has reached its end-of-life support. It is highly recommended that you have a firewall protecting your server. Pre-Flight Check These instructions are intended specifically for enabling and starting Firewalld Fedora 20. I’ll be working from a sxi.io......
Blog

How to Securely Transfer Files via rsync and SSH on Linux

Viking Coin
Pre-Flight Check These instructions are intended specifically for transferring files between servers via rsync and SSH on Linux. I’ll be working from a sxi.io Web Core Managed CentOS 7 server, and I’ll be logged in as root. Use These Commands to Securely Download From a Server Standard SSH Port: rsync......
Blog

Error: Login without a password is forbidden by configuration (see AllowNoPassword) [SOLVED]

Viking Coin
This error relates to logging into phpMyAdmin, an open source tool used for the administration of MySQL. Once in awhile, perhaps on a Development server, MySQL won’t be setup with a root password. The aforementioned configuration is generally thought of as against best practices however, if it is what you’re......
Blog

Reminder: Fedora 20 Now End-of-Life (EOL)

Viking Coin
Note: Please note that this article is considered legacy documentation because Fedora 20 has reached its end-of-life support. Three versions of the Fedora OS are always kept active, at any given time, by The Fedora Project. These would be: 1. the current release, 2. the release before the current release,......
Blog

How to Enable Two-factor Authentication (2FA)

Viking Coin
Pre-Flight Check These instructions are intended specifically for enabling two-factor authentication for Manage users. What is Two-factor Authentication (2FA)? Two-factor authentication (also known as 2FA) means that instead of just a password (one factor), you will need two factors (password, plus a rotating authentication token) to login to your Manage......
Blog

Find (View) Active Zones in Firewalld on CentOS 7

Viking Coin
Pre-Flight Check These instructions are intended for finding (viewing) active zones in Firewalld on CentOS 7 via the command line. I’ll be working from a sxi.io Web Core Managed CentOS 7 server, and I’ll be logged in as root. All network interfaces exist within a zone. They can be located......
Blog

Improving Security for your Remote Desktop Connection

Viking Coin
Remote Desktop Protocol (RDP) is the easiest and most common method for managing a Windows server. Included in all versions of Windows server and has a built-in client on all Windows desktops. There are also free applications available for Macintosh and Linux based desktops. Unfortunately, because it is so widely used, RDP......