Iptables port forwarding to a running docker container
iptables is a user-space utility program that allows a system administrator to configure the IP packet filter rules of the Linux kernel firewall, implemented as different Netfilter modules. When you’re using docker and expose container ports, some iptables rules are automatically created in order to enable forwarding and…
fd-find amazing tool – simple, fast and friendly alternative to find
fd-find fd-find is a simple, fast and friendly alternative to the classic linux find comand. Please take into consideration that this tool is a not a find replacement and it might be missing some of the features linux find has but it’s pretty close to it so it…
Magento2 eCommerce Varnish template for CWP hosting panel
Magento Varnish CWP template For one of my projects I had to configure a server with a hosting panel (preferrably a free one) and an online store. The only mandatory request was to use varnish as a caching mechanism. I’ve decided to use CWP since it provides an…
Bash script – run same command on multiple servers
Bash scripting is fun and can help you automate a lot of things on your linux servers. There are a lot of ways to run the same command on multiple servers. You can use pssh for example, bash scripts, python scripts, automation tools etc. Here’s a simple bash…
USB passthrough to KVM guest instance
USB passthrough to a KVM guest instance: Main server running: CentOS 7.7 x64 latest version. KVM guest machine running RHEL-7.4 (Maipo) but it can be any linux flavor. USB flash drive attached to the main server USB port. I tried all the guides that I could find on…
Iptables port forwarding requests to localhost
Iptables port forwarding requests to localhost Iptables is a user-space utility program that allows a system administrator to configure the IP packet filter rules of the Linux kernel firewall, implemented as different Netfilter modules. Let’s take this scenario. You have an app which binds locally on 127.0.0.1 on…
Pimcore – An easy way to install it on a cPanel/WHM linux server
Pimcore An award-winning software, which delivers significant business value by breaking up data silos that exist in many enterprises. Or so they say. True or not, I don’t really care. I recently had a project and I had to install it on a cPanel/WHM server. It was a…
ZeroMQ PHP-7.3 extension – how to easily install it on cPanel/WHM
ZeroMQ, a software library that lets you quickly design and implement a fast message-based application! So I had this project where I was supposed to install Xibo CMS. Among other requirements, XIBO needs php-zmq extension. The server was running cPanel/WHM. For PHP-7.1 and PHP-7.2 installing the php extension is…