Create and manage database accounts - - Alibaba Cloud Documentation Center

Tair allows you to create multiple accounts and configure read-only and read/write permissions. This helps you manage instances in a more flexible manner, minimizes the risk of accidental operations, and enhances data security.

Background information

To ensure data security, the system automatically creates a default account after an instance is created. Typically, the default account is named after the instance ID (such as r-bp1jpghfglv6******). You cannot delete or replace the default account or modify the permissions of the account. You can view or reset the password of the default account on the Account Management page in the Tair console.

You can use the default account to log on to your instance in the same way as in open source Redis, where you only need to enter the password of the account. The following example shows how to log on to a Tair instance by using redis-cli:

# Use the default account whose username is r-bp1jpghfglv6****** and password is Rp829dlwa to connect to the instance. 
redis-cli -h r-bp1zx****.redis.rds.aliyuncs.com -p 6379 -a Rp829dlwa

Note

The name of the default account is default for specific instances. The name that is displayed in the console prevails.

Precautions

You can create a maximum of 20 accounts for an instance.

Procedure

Log on to the Tair console and go to the Instances page. In the top navigation bar, select the region in which the instance that you want to manage resides. Then, find the instance and click the instance ID.
In the left-side navigation pane, click Account Management.
Click Create in the upper-right corner of the page.

In the panel that appears, configure the parameters that are described in the following table.

Parameter	Description
Account	The account name, which must meet the following requirements: The name can contain lowercase letters, digits, and underscores (_) and must start with a lowercase letter. The name can be up to 35 characters in length. The name cannot contain any of the reserved words displayed in the Reserved words for accounts section of this topic.
Privilege	The permissions that are granted to the account. Valid values: Read-only: The account has only permissions to read data and is not allowed to modify data. Read/Write: The account has permissions to read and write data.
Password	The password of the account. The password must contain at least three of the following character types: uppercase letters, lowercase letters, digits, and specific special characters. These special characters include !@#$%^&*()+-=_ The password must be 8 to 32 characters in length
Confirm Password	Enter the password again.
Description (optional)	The description of the account. The description must start with a letter and cannot start with `http://` or `https://`. The description can contain letters, digits, underscores (_), and hyphens (-). The description must be 2 to 256 characters in length.

Click OK.
After you create an account, the account is in the Unavailable state. Refresh the page about 1 minute later, and the state changes to Available.
Note
- The password is in the user:password format. For example, assume that an account is named testaccount and the password is Rp829dlwa. Enter testaccount:Rp829dlwa in the password field to log on to the instance. For more information, see Connect to a Tair instance.
- If you use a third-party database management tool such as Redis Desktop Manager (RDM) to connect to an instance, enter the password in the user:password format.
Optional: Perform the following operations based on your business requirements to manage the account:
- Reset the password
  Find the account and click Reset Password in the Actions column. In the panel that appears, reset the password and click OK.
- Modify the permissions
  Find the account and click Modify Privilege in the Actions column. In the panel that appears, select the required permissions and click OK.
- Modify the description
  Find the account and click Edit Description in the Actions column. In the panel that appears, modify the description and click OK.
- Delete the account
  Find the account and choose > Delete in the Actions column. In the panel that appears, click OK.
  Warning
  After you delete the account, you cannot log on to the instance by using the account. In this case, to prevent the impact on the connection of your client, change the account and password that are used to verify the connection of your client in advance.

Reserved words for account names

When you create an account, the account name cannot be one of the following reserved words. The following table describes the reserved words. The reserved words are separated by commas (,).

Initial	Reserved word
a~c	add,admin,all,alter,analyze,and,as,asc,asensitive,aurora,before,between,bigint,binary,blob,both,by,call,cascade,case,change,char,character,check,collate,column,condition,connection,constraint,continue,convert,create,cross,current_date,current_time,current_timestamp,current_user,cursor
d~f	database,databases,day_hour,day_microsecond,day_minute,day_second,dec,decimal,declare,default,delayed,delete,desc,describe,deterministic,distinct,distinctrow,div,double,drc_rds,drop,dual,each,eagleye,else,elseif,enclosed,escaped,exists,exit,explain,false,fetch,float,float4,float8,for,force,foreign,from,fulltext
g~l	goto,grant,group,guest,having,high_priority,hour_microsecond,hour_minute,hour_second,if,ignore,in,index,infile,information_schema,inner,inout,insensitive,insert,int,int1,int2,int3,int4,int8,integer,interval,into,is,iterate,join,key,keys,kill,label,leading,leave,left,like,limit,linear,lines,load,localtime,localtimestamp,lock,long,longblob,longtext,loop,low_priority
m~r	match,mediumblob,mediumint,mediumtext,middleint,minute_microsecond,minute_second,mod,modifies,mysql,natural,no_write_to_binlog,not,null,numeric,on,optimize,option,optionally,or,order,out,outer,outfile,precision,primary,procedure,purge,raid0,range,read,reads,real,references,regexp,release,rename,repeat,replace,replicator,require,restrict,return,revoke,right,rlike,root
s~z	schema,schemas,second_microsecond,select,sensitive,separator,set,show,smallint,spatial,specific,sql,sql_big_result,sql_calc_found_rows,sql_small_result,sqlexception,sqlstate,sqlwarning,ssl,starting,straight_join,table,terminated,test,then,tinyblob,tinyint,tinytext,to,trailing,trigger,true,undo,union,unique,unlock,unsigned,update,usage,use,using,utc_date,utc_time,utc_timestamp,values,varbinary,varchar,varcharacter,varying,when,where,while,with,write,x509,xor,xtrabak,year_month,zerofill

Related API operations

API operation	Description
CreateAccount	Creates an account that has specific permissions for a Tair instance.
GrantAccountPrivilege	Modifies the permissions of an account for a Tair instance.
ModifyAccountDescription	Modifies the description of an account for a Tair instance.
ModifyAccountPassword	Changes the password of a specific account for a Tair instance.
DeleteAccount	Deletes an account from a Tair instance.