Category Howto

How to Install TigerVNC Server on CentOS 8

On this mini how to, we’ll learn step by step to install TigerVNC server on CentOS 8. TigerVNC has been around for long time, it’s stable and already on CentOS 8 official repository. Because it’s already there, well use that,…

How To Install Shadowsocks Proxy on Debian 10

Shadowsocks is a well-known sock5 proxy, it’s fast and easy to install. Compared to other clients shadowsocks is the most active developed sock5 proxy client and server. SOCK5 proxy usually uses port 1080, but it can use any port. Shadowsocks…

How to Install LibreOffice 7 on Ubuntu 20.04

LibreOffice 7 has been out for a month, bust most distro still uses old LibreOffice 6, especially Ubuntu 20.04 and Debian 10. For who need the LibreOffice 7 must install them manually, which this tutorial for. The how to install…

How To Install Free SSL Alternative to Lets Encrypt

As you might notice, we use Let’s Encrypt for our tutorial, beside of Let’s Encrypt there are more alternative in free SSL world which supports ACME protocol. We preferred ACME because it has many different client support and compatible with…

How To Troubleshooting DNS on Linux

At some point, DNS will make its way to you. For the older generation System Administrator, there is a famous quote “It is always DNS”. DNS propagation in some countries might take 1×24 hour to propagated, the ISP had some…

How To Securing SSH with SSHGUARD on Debian 10

Once the SSH server started, the bots will randomly try brute-force the SSH server, some servers need to keep using default port 22 for various reasons. The most reasonable reason is to whitelist the IP address of the users or…

How To Create Docker Images For Beginner

Docker used almost everywhere nowadays, many application provides docker images such as Node, Nginx, Java, Laravel and many more which easy to use without any complicated step to each software on your own. By using docker to use the latest…

How To Install Roundcube Webmail 1.4 on Debian 10

Roundcube release version 1.4 which brings a brand new responsive layout, Elastic. Roundcube has been around for a long time, even the most famous control panel cPanel, Directadmin installed Roundcube by default. Many people may already move from managing their…