CentOS: how to find out which package contains a specific command
On CentOS: how to find out which package contains a specific command? You want to find out which package contains a specific command like convert,…
Author: phptuts
How to install dig and host on CentOS 7
On CentOS 7 default, you can’t use dig or host command: How to install dig on CentOS 7? The DIG tool and the HOST tool…
How to install netcat on Windows
Simple, you can install netcat with cygwin Read more: How to add packages after install Cygwin Result: Done!, now you can use netcat
How to create a sFTP User Account on CentOS 7
First login ssh with root account then you follow these steps: Step 1: Create a sFTP group Step 2: Create a sFTP user Result: Note:…
Example Monitoring HAProxy
Example 1: Explain: listen stats *:1936 – Use the listen directive, name it stats and have it listen on port 1936. stats enable – Enable…
Example Load Balancing with HAProxy on CentOS
Example we have 3 server, we install HAProxy on a server (51.15.94.246), and nginx on two other servers (212.47.238.225 and 51.15.132.220 running Nginx on port…
Javascript: read djvu online
Use library: minidjvu.js And BlobBuilder.js here. HMTL: Online demo
Javascript: BlobBuilder polyfill
The BlobBuilder interface provides an easy way to construct Blob objects. Just create a BlobBuilder and append chunks of data to it by calling the…
How to config fonts for Xpdf tools Linux
Xpdf is a free and open-source PDF viewer for operating systems supported by the Qt toolkit. Website: xpdfreader.com Step 1: make folder fonts eg: /root/xpdf-tools-linux-4.00/fonts…
How to fix error: WebSocket is already in CLOSING or CLOSED state
Some errors you can see: Example 1: Example 2: Example 3: How to fix this error? If you use socket.io, use version 2.0.3 If you…