Blog Knowledge Map
1. Blog Knowledge Map - Featured Navigation: This knowledge map serves as the blog's sole main entry point, containing only articles with systematic, methodological, and practical value. It aims to help new readers quickly grasp the author's core technical threads and thought framework. Several areas within the blog have already formed relatively complete knowledge systems…
Forced to add a new mobile broadband line to form a dual outlet with telecom broadband

Last week, the telecom technician came to my house again and said that he suspected that I had a PCDN at home. The basis for his suspicion was that there was a large amount of upstream and downstream traffic for 215 consecutive hours (in fact, I downloaded very little during this period, less than 1T in 215 hours, and less than 300G in uploads). I was speechless. My transmission upstream is limited to 1024KB/second. What else can I do?

I just took a look at the recent cases online of users whose speeds were throttled or whose Internet was disconnected by operators in the name of PCDN. It seems that all major operators are using the panacea name of PCDN to crack down on users with large upload volumes (this "large" is relative to ordinary home users. You know, the average home user's upload volume may not exceed 1G in a day~), so I also feel the danger: after all, I am an old user who uses a public IP package at a very low price, and I am a thorn in the eyes of the telecom. If they get the chance to accuse me of violating the rules and take back my public IP, I will suffer a great loss (although I don't use the public IP now, but if you can get a good deal, you are a fool not to take advantage of it).

After much thought, and considering that I had experienced a three-day internet outage last year, I already had a sense of crisis, so I simply subscribed to a gigabit broadband service from China Mobile, which boasts 1,000 megabits of downstream and 100 megabits of upstream.

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Believe it or not, there is actually nearly 130Mbps uplink:
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After more than a week of work, I finally managed to split my intranet connections. All my home data center-related connections are now connected to China Telecom, while all other applications (including PT downloads) are connected to China Mobile. China Mobile's connection is now the default connection, and China Telecom and China Mobile serve as backup lines for each other. Now, aside from power outages, I no longer worry about accessing certain applications due to broadband issues. Although I was forced to add China Mobile broadband, I suddenly feel more secure with dual broadband. It also fulfills my long-held dream of dual broadband.

8 / 02 , 2025 15:07
A solution for implementing a WordPress multi-active architecture (simplified version) in a personal blog.
1 Background Introduction The original idea of developing a WordPress multi-active solution was actually very simple: the Internet at home was cut off by the telecommunications company for three days without any warning (see the article: Home Data Center Series From this time when the Internet was cut off at home, I talked about my current personal blog…
FriendlyWrt NanoPi Series Soft Router Selection and Flashing: R2S Plus + FriendlyWrt in Practice
1 Introduction In the previous article (see: Home Data Center Series: Using X-WRT to Transform Retired Small Hosts: An Alternative Choice for Main Routers), I used an idle J2900 x86 small host to tinker with the soft router. It worked fine, the performance was more than adequate, and the system was stable...
Warmly celebrate the term "home data center", which is temporarily ranked first in Google search results

It’s not easy. The search results for the term “home data center” on Google search engine finally overwhelmed Baidu Encyclopedia and Wikipedia, which used to dominate me. Although this time is definitely very short, it is worth posting a comment:
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7 / 05 , 2025 22:52
Upgrading a decommissioned mini PC with X-WRT: An alternative option for main routers
1 Introduction I have always used iQuick as the main router in my home data center. Its main advantage is that it supports multi-dial function (for the detailed concept of multi-dial, please refer to the article:). Because my home telecom broadband supports up to 3 dials, I can obtain 3 public network IPv4 addresses at the same time, which is very useful for people like me who have multiple line access...
Using Cloudflare Worker to solve the comment synchronization problem in WordPress multi-active architecture
1 Introduction When deploying a WordPress multi-active node solution, a crucial technical point is read-write separation: that is, all operations involving "writing to the database" (such as publishing articles, modifying content, modifying plugin configuration, submitting comments, etc.) are uniformly routed to the primary write node for completion, while other nodes...