| \033[XXm | |
| 30 black 90 gray | |
| 31 red 91 bright red | |
| 32 green 92 bright green | |
| 33 yellow 93 bright yellow | |
| 34 blue 94 bright blue | |
| 35 magenta 95 bright magenta | |
| 36 cyan 96 bright cyan | |
| 37 white 97 bright white |
Install, start and enable:
apt install firewalld
systemctl start firewalld
systemctl enable firewalldMake sure the file /etc/docker/daemon.json does not contain this line. If it does, delete/comment it. If the file is missing, it is OK, you can skip the step:
{
| # Two SQL queries. One built using ActiveRecord, the other - manually assembled. | |
| # Both return the same result. | |
| # Each table has 500 thousand and a million records respectively (Ticket has many Messages). | |
| # The first query works 10 times slower. | |
| # | |
| # 1) Active Record | |
| # 130 rows retrieved starting from 1 in 645 ms (execution: 635 ms, fetching: 10 ms) | |
| # 130 rows retrieved starting from 1 in 623 ms (execution: 611 ms, fetching: 12 ms) | |
| # 130 rows retrieved starting from 1 in 640 ms (execution: 631 ms, fetching: 9 ms) |