Many friends may not have heard of FFmpeg, but you must have used one of these software: Baofeng Yingyin, QQ Yingyin, KMP, GOM Player, PotPlayer (2010), KMPlayer. FFmpeg is open source software, and software that uses FFmpeg in accordance with the agreement must also be open source. However, these audio and video software do not comply with the agreement, so they were put on FFmpeg's "blacklist".
Recently, "coveting" a bargain, I changed the server to Alibaba Cloud International Edition Hong Kong VPS host. The biggest feeling after moving here is not the speed improvement - because the Korean kdatacenter VPS originally used is also very fast when accessed on the telecommunications network - but the performance of the Alibaba Cloud VPS host is really good compared to other VPS hosts that are also 1GB. It's a bit weak.
Ajenti is a foreign open source free server panel. Its functional design is similar to the VestaCP we introduced before. The panels all support Chinese and come with SSL, Nginx, PHP, MysqL, etc., which can be installed manually. The official website also provides a Key installation script, Ajenti can also be used as a server management panel.
I don’t know if I used a VPS host with a high configuration before, or if there is a problem with the performance of the newly moved Alibaba Cloud Hong Kong VPS host. In short, every time I dig the site at night, the host becomes unstable and the system load suddenly becomes high. suddenly low. Using server log analysis tools: ngxtop and GoAccess, you can also find out that some IPs are constantly scanning server ports and WP background.
The public DNS server here refers to the DNS domain name resolution server used locally by our computer. Generally, when we connect to the broadband, we will automatically obtain the DNS server of the local ISP. However, have you ever found that some "inexplicable" pop-ups occasionally pop up when accessing web pages on your computer? "advertisment? A typical example is that advertisements are inserted into web pages and cannot be removed by anti-virus software.
Smokeping is an open source and free network performance monitoring tool. It is mainly used to monitor network performance, including conventional ping, dig, echoing, curl, etc. The advantage of Smokeping is that it uses rrdtool to draw pictures, and the monitoring images are updated in real time and are beautiful.
When many people think of statistics, they are limited to Google Analytics, Baidu Statistics, webmaster statistics, etc. These types of statistics are systems developed by third-party companies such as search engines. Naturally, they are useless in terms of functionality and ease of use, but the only One problem is that statistical data is stored on a third-party server, which poses certain risks for some websites with strong confidentiality.
Last time I dug the site, I shared the use of Huginn to capture the RSS and WeChat public account updates of any website. Many friends left messages saying that Huginn configuration is too difficult, and there is no ready-made scenario library. Many crawling rules need to be explored and customized by yourself. Definition is relatively difficult. The most important thing is that you need to pay a hosting fee yourself to build Huginn.
I used to like to add watermarks to pictures when blogging, mainly because I saw other bloggers doing the same. Later, I felt that the picture watermark was too ugly. At the same time, more and more pictures were inserted into articles. Adding watermarks took a lot of time, so I stopped adding watermarks to pictures. The main reason for "bringing up old things again" this time is that many friends have reported that the articles on the site have been maliciously "copied".
We often use screenshot software when writing articles. Previously, Qi mentioned the method of adding watermarks to pictures in batches using I left a message saying that you can actually use the ShareX screenshot tool: one-click screenshot → automatically add watermark → automatically upload, truly realizing the screenshot workflow.
