Server database-related network connection settings

How to access the SQL Server database of another computer (server) on one computer through the LAN?

1. There are two situations when two computers are in the same LAN. One is that they are in the same subnet, and the other is that they are in different subnets. You can follow the steps below to determine whether they are in the same subnet:

(1) Ctrl+R in the two computers respectively, open cmd, enter the command line ipconfig, findHost IP(IPv4 Address) andSubnet mask(Subnet Mask), expand the two digit sequences into binary and then perform bitwiseAND operation(And), if the results calculated by two computers are the same, then the table names are in the same subnet. For example: the IP address of computer A is 192.168.4.17,The subnet mask is 255.255.255.0, the IP address of computer B is 192.168.4.23, and the subnet mask is 255.255.255.0. The results of their respective AND operations are equal to 255.255.255.0 , So computer A and computer B are on the same subnet.

(2) On computer APress Ctrl+R, open cmd, enter ping 192.168.4.23 to see if the ping can be successful, if it can be pinged, it means that computer A can connect to computer B through the network, if the ping fails, then it mayYou need to turn off the Windows firewall of Computer B as the database server, and then try again.

(3) For two computers that are in different subnets but belong to the same LAN,Computer B as the database server must also be turned onWindows remote function, Open it in My Computer->Properties->Remote Settings, as shown below

2. SQL Server Management Studio must be installed on the computer as the database server, and the user who needs to log in must have enoughAuthorityTo access the database, then the permissions of the newly created userHow to set？

To be added……

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