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 start. In this article, I will share my experience of building my own mail server from scratch and provide some explanations of the parameters used.
In this article I introduced how to use frp to establish an SSH connection to a local server. In fact, services running on a local server also can be exposed to the internet via frp's TCP forwarding. For instance, I ran a chat service on my old laptop without public IP address and made it accessible over the internet. However, a potential security issue is that the traffic between the local client and server is plaintext if you just use the tcp or http mode. This article records how to enable TLS feature.
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 frontend to visualize the aria2.
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 the song choices are limited. In addition, some guys, like me, prefer not to use these APPs to listen to music. Plyr is a simple HTML5, YouTube, and Vimeo player, and it was ported to Typecho called Typecho-Plugin-Plyr. The audio/video can be played by using this tiny tool.
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 service has a subdomain, it is helpful to secure multiple subdomain names (hosts) under the same base domain using the wildcard cert.