vladpurga

Electromagnetic Waves - Pure CSS

A Pen by Praveen Puglia on CodePen.

License.

vladpurga

- name: Run DB/API integration test suite
  hosts: localhost
  become: True
  become_method: sudo

  tasks:

  - name: Use PSQL to Close Postgres DB connection to the master database
    become: True
    become_user: postgres

vladpurga

0 * * * * truncate /tmp/test.log --size 0 

vladpurga

zabbix

cleaning

• Cleaning up the Zabbix database - Michael Foster
• Question #271951 : Questions : Fuel for OpenStack
• Zabbix housekeeper woes | Huyabbix
• History Tables – Housekeeper | Zabbix Zone
• GitHub - mattiasgeniar/zabbix-orphaned-data-cleanup: Cleanup script for orphaned data in a Zabbix Database
• GitHub - burner1024/zabbix-sql: Useful Zabbix SQL queries
• zabbix-sql/check-orphaned-data.zbx18.sql at master · burner1024/zabbix-sql · GitHub

vladpurga

# /var/spool/cron/crontabs/
sudo find /opt/chroot/*/*/var/spool/cron/crontabs -type d

vladpurga

fix virtual machine

virsh destroy --graceful <vm-name>
virsh start --console <vm-name>
e
linux ... init=/bin/bash
Ctrl+X
(initramfs) fsck -y /dev/vda1
reboot -f
root$ mount -o remount,rw /

vladpurga

$ sudo dmidecode | grep -A4 'Base Board'

Base Board Information
   Manufacturer: Gigabyte Technology Co., Ltd.
   Product Name: GA-MA69VM-S2
   Version: x.x
   Serial Number: 

vladpurga

edit /etc/default/console-setup to set the Terminus Bold font

ACTIVE_CONSOLES="/dev/tty[1-6]"
CHARMAP="UTF-8"
CODESET="guess"
FONTFACE="TerminusBold"
FONTSIZE="16x32"
SCREEN_WIDTH="80"

vladpurga

```sql

-- https://stackoverflow.com/questions/25413303/how-to-list-files-in-a-folder-from-inside-postgres

-- Unfortunately that variant only allow use hardcoded path
-- To use user parameter we will use dynamic EXECUTE.
-- Return also file size and allow filtering
--
-- @param path text. Filesystem path for read to
-- @param filter text (default null meaning return all). Where condition to filter files. F.e.: $$filename LIKE '0%'$$

vladpurga

Ubuntu 18.04 Changes after installing

behavior of left Alt key

• https://linux.die.net/man/1/kbd_mode

$ sudo kbd_mode
The keyboard is in Unicode (UTF-8) mode

$ sudo kbd_mode -s
$ sudo kbd_mode