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# always start with interface up
auth eth0

# Static
iface eth0 inet static
  address 192.168.1.5
  netmask 255.255.255.0
  gateway 192.168.1.254
  dns-nameservers 192.168.1.250

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rsync -e "ssh -p8888 -o Compression=no" 127.0.0.1:/mnt/1TB/backup.tar.gz -P ./backup.tar.gz
rsync -P ./backup.tar.gz -e "ssh -p8888 -o Compression=no" 127.0.0.1:/mnt/1TB/backup.tar.gz

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## key only auth
ChallengeResponseAuthentication no
PasswordAuthentication no
PermitRootLogin prohibit-password
PubkeyAuthentication yes

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deb http://deb.debian.org/debian bullseye main contrib non-free
deb http://deb.debian.org/debian bullseye-updates main contrib non-free
deb http://deb.debian.org/debian bullseye-backports main contrib non-free
deb http://security.debian.org/debian-security/ bullseye-security main contrib non-free

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GDB commands by function - simple guide
---------------------------------------
More important commands have a (*) by them.

Startup 
% gdb -help         	print startup help, show switches
*% gdb object      	normal debug 
*% gdb object core 	core debug (must specify core file)
%% gdb object pid  	attach to running process
% gdb        		use file command to load object 

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Server

apt update
apt install nfs-kernel-server
mkdir /mnt/nfs -p
chown nobody:nogroup /mnt/nfs
chmod 777 /mnt/nfs
nano /etc/exports

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fix letsencrypt certs for haproxy

use 'fullchain_with_key.pem' in your HAproxy configuration

https://serverfault.com/questions/623068/haproxy-and-intermediate-ssl-certificate-issue

DOMAIN="mydomain.com"
cp /etc/letsencrypt/live/$DOMAIN/fullchain.pem /etc/letsencrypt/live/$DOMAIN/fullchain_with_key.pem;
cat /etc/letsencrypt/live/$DOMAIN/privkey.pem >> /etc/letsencrypt/live/$DOMAIN/fullchain_with_key.pem;

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Install Let’s Encrypt Certbot

apt install certbot

Generate new certificate using Certbot

certbot certonly --manual --preferred-challenges dns -d "*.DOMAIN"

Setting DNX TXT ACME Challenge in Namecheap

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## Bring your own SQL server;
export DOCKER_MARIADB_DBHOST="127.0.0.1";
export DOCKER_MARIADB_DBPORT="3306";
export DOCKER_MARIADB_DBNAME="mdb";
export DOCKER_MARIADB_DBHOSTPW="Password123!";
export DOCKER_MARIADB_DATABASE="mydatabase";
export DOCKER_MARIADB_USER="'devuser'";
export DOCKER_MARIADB_TABLE="mytable";
docker run -p "$DOCKER_MARIADB_DBHOST":"$DOCKER_MARIADB_DBPORT":"$DOCKER_MARIADB_DBPORT"  --name "$DOCKER_MARIADB_DBNAME" -e MARIADB_ROOT_PASSWORD="$DOCKER_MARIADB_DBHOSTPW" -d mariadb:latest &
sleep 15s;

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You can just use map within the components render method.

render () {
   return (
       <div>
           {stations.map(station => <div key={station}> {station} </div>)} 
       </div>
 );