Talk about server and programming
Xvfb or X virtual framebuffer is a display server implementing the X11 display server protocol. In contrast to other display servers, Xvfb performs all graphical operations in virtual memory without…
On other post, we create an article how to obtain Let’s Encrypt SSL Certificate on Centos 6/7/8 or RHEL 6/7/8. As we know, Let’s Encrypt SSL Certificate is expired in…
Now SSL is one of SEO (Search Engine Optimization) signal. Read it on Google Webmaster Blog. If you only has one or two websites, there is not a big problem.…
This linux command line to check UDP connection on Linux using Conntrack command. If you want to exclude localhost, you can using grep
Lsyncd watches a local directory trees event monitor interface (inotify or fsevents). It aggregates and combines events for a few seconds and then spawns one (or more) process(es) to synchronize…
If you have error warning on CSF (ConfigServer Security & Firewall) on Linux servers when start or restart CSF like the following message: It’s caused by bind-utils package not installed.…
If you have trouble apache or PHP-FPM can not connect to remote MySQSL server, example error on PDO connection on remote server like below First you need to check is…
SSH default port is 22, every body knew it. And it will cause many brute force SSH attacks. For security reasons, Linux administrator should change to custom port to securing…
Sometimes we need to create a jailed user on Linux to restrict that user. However, sometimes we need the jailed user to be able to access directories outside the home…
This article will guide you how to secure your files using VeraCrypt, a free and open source encryption tools and multi platform, works on Windows, Linux and Mac OS, available…
If you have sensitive data or file, you can make an iso image on Linux. For example backup file, photo or even your source code, so no one can stole…
Our server suddenly got big traffic and this traffic detected on Google Analytics. This spike traffic increase 1000 % – 2000 %. Our server resource very high, and CPU usage…
![CSF Error: *WARNING* Binary location for [HOST] [/usr/bin/host] in /etc/csf/csf.conf is either incorrect, is not installed or is not executable](https://static.serverdiary.com/wp-content/webp-express/webp-images/doc-root/wp-content/uploads/2020/04/CSF-Error-Binary-location-for-HOST-is-either-incorrect-is-not-installed-or-is-not-executable.jpg.webp)
