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1. Config server.cnf add $ sudo vi /etc/my.cnf.d/server.cnf ---------------------------------------------------- [mariadb] lower_case_table_names=1 ---------------------------------------------------- 2. MariaDB service restart $ sudo systemctl restart mariadb

. MariaDB.repo setting $ sudo vi /etc/yum.repos.d/MariaDB.repo ---------------------------------------------------------------- [mariadb] name = MariaDB baseurl = https://yum.mariadb.org/10.4/centos7-amd64 gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB gpgcheck=1 ---------------------------------------------------------------- 2. MariaDB Install $ sudo yum install MariaDB-server MariaDB-clie..

Menu select File > Settings Popup Keymap > Editor Actions > Down (, Left, Right, Up) select - mouse left double click or right click > Add Keyboard Shortcut click > (number keypad) Down(, Left, Right, Up) Select > OK > Apply, OK 참조 : intellij-support.jetbrains.com/hc/en-us/community/posts/206345169-Scrolling-with-keys-on-numeric-keypad-with-num-lock-off

1. Install $ sudo apt install rpi-imager 2. Uninstall $ sudo apt remove rpi-imager

1. VGA driver found 1.1 lspci user@localhost:~$ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06) 1.2 inxi (sudo apt install inxi) user@localhost:~$ inxi -G Graphics: Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics driver: i915 v: kernel Display: x11 server: X.Org 1.20.13..

1. Execute android studio Start > Android Studio > Android Studio 2. Menu select File > Settings... (Pop-up window) Appearance & Behavior > System Settings 3. setting Reopen last project on startup : uncheck before after OK or Apply button click and restart android studio 4. Android Studio Welcome page

1. Download VMware Workstation Player 16.x https://www.vmware.com/go/getplayer-linux (Download link) Download file name : VMware-Player-16.0.0-16894299.x86_64.bundle VMware Workstation Player 16.x download page > Try Workstation 15.5 Player for Linux > Download Now >> https://www.vmware.com/products/workstation-player/workstation-player-evaluation.html (EN) > LinuxLinux용 Workstation 15.5 Player ..

JDK 7 Install Oracle JDK 7 install $ sudo apt install oracle-java7-jdk Open JDK 7 install $ sudo apt install openjdk-7-jdk JDK 8 Install $ sudo apt install oracle-java8-jdk $ sudo apt install openjdk-8-jdk

1. network device list Ubuntu@ubuntu$ ls /sys/class/net eth0 lo wlan0 2. network setting file edit Ubuntu@ubuntu$ sudo vi /etc/netplan/50-cloud-init.yaml before ======================================================================================= network: ethernets: dhcp4: true optional: true ======================================================================================= add ==========..

Ubuntu login : ubuntu Password : ubuntu first login password change