Use different user settings and extensions list for VSCode:
code --user-data-dir REPLACE_PATH --extensions-dir REPLACE_PATH
Рубрика: howto
ImageMagick PDF and JPG useful examples
ImageMagick convert PDF to JPG
Crop, rotate and set jpg quality on multipage PDF to JPG convert:
convert -density 150 -resize 968x -gravity NorthEast -extent 968x692 -rotate "-90" 1.pdf -quality 90 1.jpg
ImageMagick PDF to JPG sometimes results in black background
Need remove alpha in PDF:
convert -density 150 -resize 1000x -fill white -alpha remove *.pdf -quality 90 1.jpg
Bash script with ImageMagick that resize and change qulity a lof of images
#!/bin/bash
if [ -d photos ]; then
rm -rf photos
fi
mkdir photos
for img in ./*
do
filename=$(basename "$img")
filename="${filename%.*}"
convert "$img" -auto-orient -resize 1000x -quality 85% "photos/$filename.jpg"
done;
How to install SSL (Let’s Encrypt) for the HestiaCP admin panel
When you go to panel url with port 8083 — you can see SSL error in your browser.
Here’s what you can do to fix that:
1. If you don’t have WEB domain — add WEB Domain in panel. I will use my domain codebe.com for example.
2. Go to WEB domain edit which one uses for panel:
3. Enable SSL certificate for domain:
4. Connect to your server over SSH.
5. Get information for changing hestia-nginx config. Copy full path to certificate and key for you domain, for example, I have this path:
/home/codebe/conf/web/codebe.com/ssl
And I’ve this files in current directory:
799435-codebe.com.crt 799435-codebe.com.key
6. Open file in your favorite text editor:
/usr/local/hestia/nginx/conf/nginx.conf
7. Change parameters for hestia-nginx server:
....
server {
....
ssl_certificate /home/codebe/conf/web/codebe.com/ssl/799435-codebe.com.crt;
ssl_certificate_key /home/codebe/conf/web/codebe.com/ssl/799435-codebe.com.key;
....
}
....
8. Restart HestiaCP (it’s working for Debian 11):
service hestia restart
9. Well done!
How to change table default charset of a Mysql table?
ALTER TABLE talbe_name_in_database CONVERT TO CHARACTER SET utf8;
Install Java 8 on Debian 8 (Jessie)
Download Linux x64 from https://www.java.com/en/download/ and perform commands below from root or sudo:
tar xzvf jre-8u291-linux-x64.tar.gz mv jre1.8.0_291 /usr/lib/jvm/jre1.8.0_291 update-alternatives --install /usr/bin/java java /usr/lib/jvm/jre1.8.0_291/bin/java 1 java -version update-alternatives --config java
Resolve Error (AWS Free Tier and Terraform): Error launching source instance: VPCIdNotSpecified: No default VPC for this user. GroupName is only supported for EC2-Classic and default VPC.
When you use Amazon Free Tier period and want to run free EC2 instance and when you get error:
Error: Error launching source instance: VPCIdNotSpecified: No default VPC for this user. GroupName is only supported for EC2-Classic and default VPC.
You need to create Security Group resource (example for port 80 for http server):
resource "aws_security_group" "allow_http" {
name = "allow_http"
ingress {
from_port = 80
to_port = 80
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
ipv6_cidr_blocks = ["::/0"]
}
egress {
from_port = 0
to_port = 0
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
ipv6_cidr_blocks = ["::/0"]
}
}Mount VirtualBox vdi image (debian, ubuntu)
You can use qemu package.
apt-get install qemu
After you can check and load network block device kernel-module:
rmmod nbd modprobe nbd max_part=8
Then you connect image:
qemu-nbd -c /dev/nbd0 image.vdi
And mount (don’t forget create mount directory /media/image):
mount /dev/nbd0p1 /media/image
And unmount:
qemu-nbd -d /dev/nbd0