As mentioned in a previous blog post, my current project is deployed using Docker. However, during a recent login to the server, a strange phenomenon occurred: all the containers in Docker would restart from time to time. Also, every time I logged in to check the Docker status, it would show that the containers had just started (Up 15 seconds). After several investigations, I finally identified that the restart issue was related to SSH login. Every time I logged in via SSH, the containers would restart.READ MORE →
Recently, after upgrading the Qnap NAS to QTS 5.0.X , there was a problem of not being able to access to the web page from internet. However, accessing from LAN still works. So at the beginning, I thought it might be a firewall or port forwarding issue.READ MORE →
After three months of hard work, the SSL certificate of my RSS aggregator finally expired. The auto-renew script failed to renew it — this happened a couple of times, I need to login into the web panel and renew it manually every three months. Unfortunately, the web panel malfunctioned this time either. After an epic battle with cert-bot, Nginx, and even the web panel I used, I finally gave up and decided to switch to another self-hosting solution.READ MORE →
Lolipop by GMO cloud is the hosting service I’m using. The hosting plan includes email hosting services, but the webmail interface is in Japanese with limited functions provided, so I installed my own Roundcube instance instead. Not like VPS, Installing a custom Webmail service needs to skim through the service provider’s documentation, undoubtedly it is all in Japanese. This takes me some time to search and validate all these endpoints. Anyway, the tutorial is as follows.READ MORE →
The knowledge base project has been migrated to the MkDocs project, and it works like a charm so far.READ MORE →
As LastPass will change their product plan this month, free users will no longer be available to synchronize their password across the PC and mobile. That is to say; Users have to choose mobile or desktop as their primary device to store their password.READ MORE →
Dokuwiki is an elegant and concise wiki-site. Since it uses plain text files instead of a database to store pages, one offline copy could be useful for some situations, like read it on your Kindle when you go offline or publish your ebook. Thus, we want to back up our pages and media file daily and create a symbolic link to the latest copy for downloads.READ MORE →
I went back home last month and put my Charge HR in a corner since then. But when I prepare to wear it these days, I found my Charge HR shows a battery symbol with an exclamation mark on the screen. It cannot display dashboard as usual, neither can I connect that device from my smartphone. My smart band was fully charged, so this issue was not caused by lack of power.
IDCF is a large enterprise which provides VPS service at an affordable price in Japan. It provides 3TB data transfer for free each month, Extra transfer fee should be paid after exceed the free plan. So it’s a wise choice to balance the data transfer from the different zone.