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…
Author: phptuts
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…
How to install memcached on Ubuntu
We use Ubuntu 16.04.5 LTS 64bits Result: Done! Check:
How to use Amazon Lightsail Linux with Putty and Bitvise Tunnelier
After create VPS, you will see info: Convert your private key See: How to use AWS EC2 Linux with Putty and Bitvise Tunnelier Starting a…
How to batch convert png photos to jpg or vice versa
Example: you have an folder /root/fff7860c7319fa20c8340eb813637fba-i/ with many photos like this figure: And you want to convert all pagepng-*.png files to jpg format. How to…
How to install calibre ebook on CentOS
calibre is a powerful and easy to use e-book manager. Users say it’s outstanding and a must-have. It’ll allow you to do nearly everything and…