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sudo apt install fscrypt libpam-fscrypt
# encrypt only filesytem with /home (it may be in '/' filesystem)
FileSystem=$(grep -E ' (/home|/) ' /proc/mounts | grep -o '^[^ ]*')
getconf PAGE_SIZE  # 4096
# TODO check Ext2/Ext3 (FSFS, UBIFS ??)
sudo tune2fs -l $FileSystem | grep 'Block size'
sudo tune2fs -O encrypt $FileSystem
sudo fscrypt setup
sudo pam-auth-update

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apt-cache policy systemd-homed
# systemd-homed: Candidate: 255.4-1ubuntu8.4

sudo apt install systemd-homed
# The following NEW packages installed: systemd-homed systemd-userdbd

sudo homectl --real-name=ZM \
        --uid=60131 \
        --kill-processes=false \
        --member-of=docker,dip,lpadmin,plugdev,ops,sudo,users,wireshark \

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Substack https://aljamal.substack.com/p/homoiconic-python

First

atom=lambda x:not isinstance(x,list)
eq=lambda x,y:x == y

car=lambda x:x[0]
cdr=lambda x:x[1:]

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Install Java

We are turning off PATH, JAVA_HOME modifications so we can install multiple versions of Java, and set PATH as needed per-project. However

• we do not provide instructions for this scenario (TODO jps)
• if this is the only Java on your workstation, you can let setup do these changes for you

winget install --interactive BellSoft.LibericaJDK.11

Interactively set this location C:\JDK\11, and turn off PATH, JAVA_HOME, and Jar assotiation

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# this is /etc/default/tomcat-shsha 
TOMCAT=/srv/tomcat

JAVA_OPTS=-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager \
-Djdk.tls.ephemeralDHKeySize=2048 \
-Djava.protocol.handler.pkgs=org.apache.catalina.webresources \
-Dorg.apache.catalina.security.SecurityListener.UMASK=0027 \
-Dhazelcast.logging.type=log4j2 \
--add-modules java.se \
--add-exports java.base/jdk.internal.ref=ALL-UNNAMED \

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ZFS on Debian w/o systemd?
ZFS Ubuntu 18.04

https://github.com/zbm-dev/zfsbootmenu/wiki/Void-Linux----Single-disk-syslinux-MBR

https://didrocks.fr/2020/06/16/zfs-focus-on-ubuntu-20.04-lts-zsys-dataset-layout/
? https://www.alibabacloud.com/blog/use-your-storage-space-more-effectively-with-zfs-exploring-datasets_594180
https://www.reddit.com/r/zfs/comments/mj4nfa/ubuntu_server_2104_native_encrypted_root_on_zfs/
https://gitlab.com/Sithuk/ubuntu-server-zfsbootmenu

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property.level = info
property.path = logs
property.filename = shsha
property.layout_pattern = %d{yyyy-MM-dd HH:mm:ss} %-5p %c{-10}:%L - %m%n
property.console_pattern = %d{HH:mm:ss} %-5p %c{-10}:%L - %m%n

appender.console.type = Console
appender.console.name = STDOUT
appender.console.layout.type = PatternLayout
appender.console.layout.pattern = ${console_pattern}

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# docker-compose.yml, v3.5 allows defining networks right here

version: "3.5"
services:
  mssql:
    image: mcr.microsoft.com/mssql/server:2019-latest
    container_name: mssql
    volumes:
      - mssql-data:/var/opt/mssql
    networks:

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[Desktop Entry]
Version=1.0
Type=Application
Name=NetBeans
Icon=/home/mz0/t/nb12.2/netbeans/nb/netbeans.png
Exec=/home/mz0/t/nb12.2/netbeans/bin/netbeans
Comment=Apache NetBeans IDE 12.2
Categories=Development;IDE;
Terminal=false
StartupWMClass=Apache NetBeans IDE 12.2

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CREATE TABLE upMsg (
    id         int,
    msg        varchar(31)
);
insert into upMsg values (1, "Foo");
insert into upMsg values (2, "Bar");

CREATE TABLE dnMsg (
    ni		int not null auto_increment primary key,
    id      int not null,