Build a mail server with docker-mailserver
docker-mailserver is a production-ready fullstack but simple mail server that runs inside a container. Building a mail server is quite complicated, and for a beginner, it may be unclear how to star...
Use aria2+AriaNg as download service
Aria2 is a lightweight and powerful download utility. However, since aria2 is operated using command, it is slightly difficult for the normal user. Therefore, typically I use AriaNg as the web fron...
Pylr - A simple audio/video plugin for Typecho
As Typecho does not support audio and video, playing them on Typecho pages requires a plugin. However, most plugins obtain audio resources from playlists on Netease Cloud or QQ Music, which means t...
Issue a wildcard cert using acme.sh
In a previous article I introduced how to issue an SSL cert for a single subdomain using acme. If there are several services running on a server (e.g., cloud storage, blog, chatroom), and each serv...
Enable swap partition on Linux
If a server has RAM less than 1 GB or uses resource heavy services, it would be a good idea to enable swap space as the RAM may be exhausted here. This article records how I enable Swap on Linux.
Implement intranet penetration using frp
frp is a fast reverse proxy to expose a local server behind a network address translation (NAT) or firewall to the internet. This article introduces how to use frp to establish a SSH connection wit...
Initial setup for Linux servers
Since buying the first server last year, I have bought several servers up to now. Because they are exposed to the internet, some necessary configurations in terms of firewall, ssh, etc., are requir...
Issue an SSL/TLS certificate using acme.sh
From July 1, 2018, Chrome shows all sites that do not use SSL certificates as "not secure", while sites with SSL certificates receive a boost in weight ranking. In fact, it is easy to issue, instal...