1. Check the error log for the MySQL 1181 error:
$ tail -f /var/log/mysql/error.log
2. Check the MySQL configuration file for any misconfigurations:
$ cat /etc/mysql/my.cnf
3. Check the MySQL process list for any suspicious activity:
$ mysqladmin -u root -p processlist
4. Check the MySQL user table for any suspicious users:
$ mysql -u root -p -e "SELECT User, Host FROM mysql.user;"
5. Check the MySQL grants table for any suspicious grants:
$ mysql -u root -p -e "SELECT User, Host, Grant_priv FROM mysql.user;"
6. Check the MySQL privileges table for any suspicious privileges:
$ mysql -u root -p -e "SELECT User, Host, Privilege FROM mysql.user;"
7. Check the MySQL tables for any suspicious data:
$ mysql -u root -p -e "SELECT * FROM mysql.table;"
8. Check the MySQL logs for any suspicious activity:
$ mysql -u root -p -e "SELECT * FROM mysql.log;"
9. Check the MySQL system variables for any misconfigurations:
$ mysql -u root -p -e "SHOW VARIABLES;"
10. Check the MySQL status variables for any misconfigurations:
$ mysql -u root -p -e "SHOW STATUS;"
11. Once the issue is identified and fixed, it is recommended to use an automated database observability tool to monitor and fix the MySQL 1181 in question. This tool can provide real-time insights into the performance and health of the database, as well as alerting when any issues arise. This can help to quickly identify and fix any issues before they become a major problem.