When u use AWS Lightsail, it is highly possible u will encounter a memory limit problem because lightsail only cares about your CPU usage. If your app[……]
Linux
UB、RH、LD、FB……
Recently, I’ve been building Nextcloud on AWS Lightsail. A cheap $5 instance is sufficient for me to sync files between devices and share calendars wi[……]
When the first time you connect your Pi through VNC, anything works fine. However, when you think it’s time to unplug the HDMI and run it only through[……]
When you try to use macOS pre-installed vnc, i.e., Finder, to connect to a Raspberry Pi, you will probably encounter an error message:
The software o[……]
When the newly flashed Raspberry Pi image is enabled，Chances are you're getting weird apt errors：
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1 2 3 4 5 6 7 8 9 |
root@raspberrypi:/home/pi# apt install default-jre Reading package lists... Done Building dependency tree... Done Reading state information... Done Package default-jre is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'default-jre' has no installation candidate |
of course，more than this，Installing any package would be Package xxx has no installation candidate
Solution
Check out your first [crayon-65195e6[……]
I accidentally found a batch of websites today，Such as http://b6x.net/ Now when you click on this website, it will display "www.logcg.com refused to connect.”，When I clicked on it for the first time, I was stunned...he actually copied my entire website? !
This is a series of three-digit domain name websites，Are similar operations。
and many more，I found out that[……]
Recently I found that the server is very slow every time apt upgrade，The reason，There are still a lot of unused kernels that have to be regenerated every time，Encountered a problem while cleaning up，*Number matching does not take effect，You must manually enter the full kernel name each time to uninstall it。
Found after stepping on the pit，It turned out to be because I used zsh，and zsh The default is not supported * No. wildcard! It’s easy to turn on this feature[……]
Python is a good thing，Many times we like to use it to write small things... For example, many services on my server are written in Python ( Supervisor will use your Python program becomes Services ），Accumulate，Many dependency packages are actually used。
but，These Python dependencies will not follow your [crayon-65[……]
Many of my friends are using Flask framework to write a small server，Easy and fast，But also a key to run，Very comfortable。but，If you really want your service to be deployed on the server，Then you will find that there are some homework to do，This article，We mainly talk about how to write the program into a service on the server instead of the terminal in the execution of the command。
If we write a Python web application，[……]