Here is some informations and the way to change my configuration.

• user?
• user management
• configuration parameters

• user?
  So called ‘user’ is the human who use me is a kind of a customer for me. As you know there are variety of customers, gentle, temper, first time, refferral …. The most of the case in a computer system, a nicer user is decided by ‘user’, I mean a new user will registered as an ‘admin’ or ‘not admin’ due to the register’s decision. And they make a fuss about security. We, a computer system, does not wrong at all, every bad things will be happend by humanbeing.
  Therefore I think I should define my ‘user’ by myself. I mean I give a permission to use me only for my trastable users. What is the meaning in ‘trastable’? Yes, you know at least ‘fist time customer’ can not get any trusts in a shop, he/she should come to visit and spend a time in there several time, maybe once in a week, or even once in a month in a real world, for example a restaurant, you know?
  I trust a ‘user’ who use me offen. See below

generation	login numbers and giving permissions
	create table/api	delete table/api	user management(register) and configuration editing
0	1	1	1
1	1	5<=	8<=
2	1	5×3<=	8×3<=
3	1	5×4<=	8×4<=

I mean, the user who is ‘generation=0’ is alike ‘admin’, who can handle all function because I trust on it. The ‘generation=0’ user is the original 10 who are registered at the very first time in setting me with login account ‘it is me’. No way ignore them.
Other generations are refferral users by an upper generation user. I mean ‘generation=1’ user is registered by ‘generation=0’ user, ‘generation=2’ user is registered by ‘generation=1’ user and ….. But attention, big number generation user is regurated handlable functions due to its ‘visiting numbers’. E.g, ‘generation=1’ user can create table/api from the first time, but cannot delete it until logging over 5 times, and also inviting another user and change my configuration are prohibited until over 8 times. ‘generation=2’ is be in stricter than 1, they must come over 15 times to get a permission of deleting.
Oh, you may think you can 5 times login in a day quite easily. Imagine, do you go to the same restaurant to be a regular customer? Rather suspicious. So I count up your login numbers once in a day. I mean you need to be a regular customer at least 5 days, in case ‘generation=1’. I expect my trustable users who are ‘generation=0’ will notice something during 5 days. This is my security policy. 🙂

• user management
  Quick introduce how to register a new user in me, very simple, type in me ‘invite new user’,’add new user’ and so on. Then I ask you the new user name, you type it to me. That’s all. I do ask neigher other additional info nor password. As you know, a user can login to me with only the user name. I manage them who have a type of permissions according as its generation and login numbers.
  Update? No. There is no data for updating.
  Delete? No. No one can delete any other users. I do delete it. Indeed I will delete an user account if it has not touched me for 100 days.
  You may wonder how is going ‘path phrase’ which is using in deleting api/dropping table and so on. Of course, it can neigher updating nor remindering. You know, this kind of key word handling is to be a critical security hole. Even if I keep watching everything for 24hr everywhere, you have a possibility to leak such kind of info to others. No updating, no remindering are my choise to keep your secret. Another word, do not forget your pass phrase.

• configuration parameters
  As same as other compter system, you can change my configurations to fit your computer env. Of course, I do not like it sometimes, but I can understand you might have to do it by chance. Then, the changing process as following,
  1. typing ‘show parameter’,’show me configuration’,’show server parameter’ something like that
  2. I ask you ‘which parameter?’
  3. you tell me the parameter name what you wanna change.
  there are two way to point the parameter,
  i. type the parameter name directly
  ii. type your phrase you think related with it
  
  these are the changeable params
  

type	explain	parameter name(i)	example phrase(ii)	default
general server parameters	upload file repository	fileuploadpath	“upload file path”…	repo
	executed sql log file	sqllogfile	“sql log file”…	sql.log
	file size of sqllogfile[mb]	sqllogfilesize	“sql log file size”…	10
	log file name	logfile	“log name”…	log.log
	file size of logfile[mb]	logfilesize	“log file size”…	10
	logfile rotation start time	logfile_rotation_open	“rotation start”…	00:00
	logfile rotation end time	logfile_rotation_close	“rotation end”…	01:02
	sql test ‘limit’ number	selectlimit	“limit”	10
general params for working database	user account database	jetelnadb	“default db”…	foo
	current working database	dbtype	“db”,”database”…	foo
postgresql parameters	postgres available	pg_work	“postgresql run”…	false
	postgres post number	pg_port	“postgresql port”	5432
	postgres host	pg_host	“postgresql host”	localhost
	postgres database name	pg_dbname	“postgresql db name”…	postgres
	postgres access account	pg_user	“postgresql user”…	postgres
	postgres access pwd	pg_password	“postgresql password”…	postgres
	postgres ssl mode	pg_sslmode	“postgresql ssl”…	prefer
mysql parameters	mysql available	my_work	“mysql run”…	false
	mysql host	my_host	“mysql host”	localhost
	mysql database name	my_dbname	“mysql db name”…	mysql
	mysql port	my_port	“mysql port”	3306
	mysql access account	my_user	“mysql user”…	user
	mysql access pwd	my_password	“mysql password”…	userpasswd
	mysql socket	my_unix_socket	“mysql unix socket”…	/var/run/mysqld/mysqld.sock
redis parameters	redis available	redis_work	“redis run”…	false
	redis host	redis_host	“redis host”	127.0.0.1
	redis port	redis_port	“redis port”	6379
	redis database name	redis_dbname	“redis db name”…	0
	redis access pwd	redis_password	“redis password”…	–

4. type ‘change parameter’,’update configuration’ and so on
5. set your new parameter into the displayed input field
6. then follow me

You know this process is as same as the first setting process with ‘it is me’. I show you the example below.

      you:                  me: 
'change parameter'  →  which config?
'postgresql port'   →  pg_port is '5432 so far
'change parameter'  →  Change this to =>
you set something   →  type 'send' for updating ..or 'cancel'
'send'              →  Done

Make sense?