liongkj

## Problem
When using Docker Desktop with WSL2 and Clash for Windows proxy, you may encounter this error:

```
target CONTAINER_NAME: failed to solve: python:3.12-slim: failed to resolve source metadata for docker.io/library/python:3.12-slim: failed to do request: Head "https://registry-1.docker.io/v2/library/python/manifests/3.12-slim": proxyconnect tcp: dial tcp 127.0.0.1:7890: connect: connection refused
```

## Solution
Follow these steps in order:

liongkj

#!/bin/bash

echo "Setting up WeeRSS..."

# Check if either docker-compose or docker compose is available
if command -v docker-compose &> /dev/null; then
    DOCKER_COMPOSE_CMD="docker-compose"
elif docker compose version &> /dev/null; then
    DOCKER_COMPOSE_CMD="docker compose"
else

liongkj

FROM python:3.10

RUN apt-get update -y && software-properties-common && \
    apt-add-repository 'deb http://security.debian.org/debian-security stretch/updates main' && apt update -y && \
    apt-get install -y openjdk-8-jdk-headless
    

ENV JAVA_HOME /usr/lib/jvm/java-8-openjdk-amd64/

RUN wget https://gitlab.com/api/v4/projects/5024297/packages/generic/pdftk-java/v3.3.3/pdftk-all.jar

liongkj

How to compress PDF using ghostscript

As a developer, it bothers me when someone sends me a large pdf file compared to the number of pages. Recently, I recieved a 12MB scanned document for just one letter-sized page... so I got to googlin, like I usually do, and found ghostscript!

to learn more abot ghostscript (gs): https://www.ghostscript.com/

What we are interested in, is the gs command line tool, which provides many options for manipulating PDF, but we are interested in compressign those large PDF's into small yet legible documents.

credit goes to this answer on askubuntu forum: https://askubuntu.com/questions/3382/reduce-filesize-of-a-scanned-pdf/3387#3387?newreg=bceddef8bc334e5b88bbfd17a6e7c4f9

liongkj

wsl.exe sudo /etc/init.d/ssh start
$wsl_ip = (wsl hostname -I).trim()
Write-Host "WSL Machine IP: ""$wsl_ip"""
netsh interface portproxy add v4tov4 listenport=65320 connectport=65320 connectaddress=$wsl_ip listenaddress=0.0.0.0

liongkj

# Download strongSwan
wget https://download.strongswan.org/strongswan-5.9.3.tar.gz 

# Extract and uncompress
tar -vzxf strongswan-5.9.3.tar.gz

cd strongswan-5.9.3

sudo apt install build-essential libgmp-dev libssl-dev

liongkj

^(?!61)(6?[60]?1{1})[0|1|2|3|4|6|7|8|9]\-*[0-9]{7,8}$

matched
0123456789
60123456789
123456789

liongkj

##Error handling
  try{}
    a) catch (error) {} 
    b) on EXCEPTIONNAME catch (e){//handle}

liongkj

class PlaceList extends StatefulWidget {
  const PlaceList({
    Key key,
    @required this.index,
    @required this.controller,
  }) : super(key: key);

  final int index;