Linux

Use GParted to increase disk size of a Linux native partition

If you have a Linux virtual machine in VMware, there might be a time when you need to increase the disk size of a Linux native partition. In this article, we'll guide you through the process using a GParted Live CD (available at gparted.org). Important Notes: During the time that the GParted ISO is mounted [...]

By | 2017-06-08T14:25:14+00:00 June 8th, 2017|Categories: Linux, System Administration|Tags: , , |0 Comments

Run PlayOnLinux as root on Kali Linux

PlayOnLinux is a Linux application that is based on Wine, which let's you install Microsoft Windows programs on Linux. It runs on Bash and Python and is free to download and install. The initial install of PlayOnLinux is easy since it can be found in the repository, but you'll have to do some tweaking if [...]

By | 2017-03-17T08:53:58+00:00 March 17th, 2017|Categories: Linux|Tags: , , , , |6 Comments

Adjusting Child Processes For PHP-FPM Nginx – Fix Server Reached pm.max_children Setting

As an addition to my previous NGINX articles, today we'll discuss how to adjust the number of child processes for PHP-FPM to fix the common error of "server reached pm.max_children" in the logs. This is a follow-up to the LEMP Install NGINX PHP7 MySQL on Ubuntu 16.04 Server or LEMP Install NGINX PHP7 MySQL on [...]

CVE-2016-8655 Five-Year-Old Linux Kernel Local Privilege-Escalation Vulnerability Discovered

A five-year-old serious privilege-escalation vulnerability has been discovered in the Linux kernel that affects almost every distro of the Linux operating system, including Red Hat and Ubuntu. Back in October, a nine-year-old privilege-escalation vulnerability, dubbed Dirty COW was discovered in the Linux kernel that affected every distro of the open-source operating system, including Red Hat, [...]

By | 2016-12-07T12:00:38+00:00 December 7th, 2016|Categories: Linux, Security|Tags: , , , , , , |0 Comments

Fix Ubuntu TimeDateCTL NTP Sync No

I recently came across an issue where an Ubuntu 14.04 LTS server wasn't syncing the time so the jitter and drifting of the time wasn't correcting itself. This caused issues with some of the applications running on the server because the time would be off as much as 45 minutes after a week or two [...]

By | 2016-11-07T16:13:07+00:00 October 31st, 2016|Categories: Linux, System Administration|Tags: , , , , , , , |0 Comments

Easy Upgrade Ubuntu 14.04 to Ubuntu 16.04 on a Server

If you're a Linux Systems Administrator or run an Ubuntu Linux Server for a small website somewhere, now would be a good time to plan an upgrade to Ubuntu 16.04 Xenial Xerus if you're currently running Ubuntu 14.04. You can read the Ubuntu Release Notes to see some of the new features available. Ubuntu has [...]

By | 2016-10-26T15:50:48+00:00 October 26th, 2016|Categories: Linux, System Administration|Tags: , , , , , , |0 Comments

How To Change Your DNS On Windows, Mac, or Linux

A DNS server resolves website URLs into their IP addresses, which is how the internet functions. Without DNS, we would be typing in IP addresses into our browsers instead of domain names. As an end user, you're probably using your internet provider's DNS server by default, but you can change that. Of course you could [...]

By | 2017-04-06T22:12:01+00:00 October 21st, 2016|Categories: Linux, Mac, Technology, Windows|Tags: , , , , , , , |1 Comment

How To Patch Linux Kernel Zero Day DirtyCow Vulnerability CVE-2016-5195

A zero-day local privilege escalation vulnerability has been found in the Linux kernel that has existed since 2005, being called DirtyCow. This bug affects a large number of popular Linux distros as well as Android devices. By exploiting the DirtyCow vulnerability, any user can become root (admin) in less than 5 seconds. The vulnerability has [...]

LEMP Install NGINX PHP7 MySQL on CentOS 7 / RHEL / Fedora

If you’re a blogger or a web developer, there will hopefully come a time when you out-grow a shared host and need either a VPS or a dedicated server to run your website. In this article, I’ll walk you through the steps to do a LEMP install on a Red Hat based Linux Distribution like [...]

By | 2017-01-26T09:27:13+00:00 October 5th, 2016|Categories: Linux, System Administration|Tags: , , , , , , , , , , , |3 Comments

Multiple Linux Distros Affected By Systemd Bug

System Administrator Andrew Ayer has discovered a system crippling bug in systemd that affects multiple Linux distributions such as Debian, Ubuntu, and CentOS. The bug has existed for more than two years and does not require root access to exploit. According to the article: After running this command, PID 1 is hung in the pause [...]

By | 2016-10-16T15:53:31+00:00 October 2nd, 2016|Categories: Linux, System Administration|Tags: , , , , , , , |2 Comments