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Archive for June, 2022

List Postgres schema

Tuesday, June 28th, 2022
SELECT schema_name
FROM information_schema.schemata;

Check the latest stable version available for upgrade? Kubernetes

Tuesday, June 28th, 2022

kubeadm upgrade plan

get pod yaml file

Monday, June 27th, 2022

kubectl get pod orange -o yaml > /root/orange.yaml

PostgreSQL table contains a lot of useful information about database sessions.

Monday, June 27th, 2022

select pid as process_id, usename as username, datname as database_name, client_addr as client_address, application_name, backend_start, state, state_change from pg_stat_activity;

postgres – Create user and grant permission access

Sunday, June 26th, 2022
CREATE USER username WITH PASSWORD 'your_password';
GRANT USAGE ON SCHEMA schema_name TO username;

Delete Mail delivery failed in cpanel

Wednesday, June 22nd, 2022

doveadm expunge -u mailbox INBOX subject ‘Mail delivery failed’

update wordpress database wp-options table for site url

Wednesday, June 22nd, 2022

PDATE el_options SET option_value = replace(option_value, ‘’, ‘’)  WHERE option_name = ‘home’ OR option_name = ‘siteurl’;

note: is the source and will be after the change

Install wordpress on docker with docker-compose

Monday, June 20th, 2022


   image: wordpress


    – mariadb:mysql





    – “”


    – ./html:/var/www/html


   image: mariadb:10.8.2


    – MYSQL_ROOT_PASSWORD=1qa2ws3ed

    – MYSQL_DATABASE=wordpress


    – ./database:/var/lib/mysql

Database table disk usage in Mariadb/Mysql

Saturday, June 18th, 2022

SELECT table_name as “Table”, ROUND(((data_length +index_length) / 1024 / 1024), 2) AS “Size in (MB)” FROM information_schema.TABLES WHERE table_schema = “ayaddb” ORDER BY (data_length + index_length) DESC;

note: ayaddb is the database name that you want to check the table disk size for it

Delete all docker containers with existed status

Wednesday, June 1st, 2022

docker rm $(docker ps -a -q -f status=exited)