Архив метки: bash

How to easily edit a network connection on a CentOS 7 minimal installation

Автор: | 20.04.2018

Image: CentOS CentOS 7 is a very powerful server platform. With this open source, enterprise-ready Linux distribution, the sky is the limit with what you can do. You can install it with a GUI to make things easy, but that takes up system resources. To that end, you might well have installed CentOS 7 as… Читать далее »

8 hard truths about working in cybersecurity

Автор: | 13.04.2018

My career working as a system administrator has involved a hefty amount of exposure to the cybersecurity realm, particularly while working for financial organizations. As data breaches continue to occur through a myriad of exploits (both technological and through human error) the stakes are constantly rising. We’ve reached a level where careers are built —… Читать далее »

How to set up a GitLab server and host your own Git repositories

Автор: | 12.04.2018

Image: Jack Wallen If you’re a Git user, you know that having local repositories that can be accessed via a local LAN (or external WAN) is a crucial element of the development process. You can certainly opt to go with GitHub, but that negates the ability to host locally. So when you want to host… Читать далее »

How to fix an incorrect Linux shell

Автор: | 10.04.2018

When you create a new user in Linux with the useradd command, it not only creates the new user, but can also generate the new user home directory, enable bash history, and a number of other necessary features for proper user functionality. But sometimes something goes wrong and you are faced with either deleting the… Читать далее »

How to install the GNS3 network emulator on Ubuntu

Автор: | 06.04.2018

Image: Jack Wallen If you’re a network administrator, you know how valuable good tools are. Most everyone knows about tools like traceroute, ping, Wireshark, iPerf, and Nmap—tools that help you sniff out issues on your currently running network. But what about when you are in the design phase of your network? Do you rely on… Читать далее »

How to change a hostname on a Linux Server

Автор: | 29.03.2018

Image: Jack Wallen During the installation of Linux on your Servers, you are asked to set a hostname. You may have either skipped that step, or you’ve realized the hostname you’ve set will not work. Either of those being the case, what do you do? Fortunately—within the world of Linux—setting or changing a hostname is… Читать далее »

Google parent Alphabet has a new VPN service you can run from your own server

Автор: | 22.03.2018

Building a slide deck, pitch, or presentation? Here are the big takeaways: Google parent company Alphabet has released a new enterprise VPN service called Outline. It’s free, open source, and can be set up to run on a local or cloud-based server. As a new service, Outline lacks clients for all OSes and some administrative… Читать далее »

How to use Antsle to quickly deploy a virtual machine

Автор: | 28.02.2018

Image: Antsle The Antsle is an incredibly powerful and easy to use tool for deploying virtual machines and containers. These deployed machines are called «antlets» and can be anything from a full-blown server operating system (such as CentOS, Ubuntu Server, or Windows Server) to a desktop OS. Antsle is a developer’s dream come true, but… Читать далее »

To capture more of the desktop market, Linux needs to target the average user

Автор: | 22.02.2018

I’ve been using Linux as my desktop operating system for 20 years now. When I first started using the open source operating system, pretty much everything was a challenge. Back then, I wore that as a badge of honor. I could use Linux! There was something special about saying that in a crowd of fellow… Читать далее »

How to easily add an SSH fingerprint to your known_hosts file in Linux

Автор: | 09.02.2018

Image: Jack Wallen Let’s say you’ve written a bash script that scans all of your Linux servers in your data center for uptime. Such a file could contain the following contents: ssh $1 «uptime» When you run your script, it may get foiled by an issue where it is stopped by a server that has… Читать далее »