1 Prakata
Apabila beroperasi MySQL
, saya mendapati kadangkala hanya akaun %
dicipta. Menyambung melalui localhost
kadangkala tidak berfungsi dan saya tidak menemui jawapan yang memuaskan apabila mencari dalam talian, saya hanya mencubanya secara manual
Pembelajaran yang disyorkan: "tutorial video mysql " <.>
diisi dengan mysql
atau -h
apabila melaksanakan perintah localhost
. Perbezaan dalam kaedah sambungan adalah seperti berikut: IP
ialah -h
, ia sebenarnya disambungkan menggunakan localhost
(kaedah sambungan lalai ), contoh Seperti yang ditunjukkan di bawah socket
[mysql@mysql-test-83 ~]$ /usr/local/mysql57/bin/mysql -utest_user -p -hlocalhost Enter password: ========= 省略 =========== mysql> status /usr/local/mysql57/bin/mysql Ver 14.14 Distrib 5.7.21, for linux-glibc2.12 (x86_64) using EditLine wrapper Connection id: 9 Current database: Current user: test_user@localhost SSL: Not in use Current pager: stdout Using outfile: '' Using delimiter: ; Server version: 5.7.21-log MySQL Community Server (GPL) Protocol version: 10 Connection: Localhost via UNIX socket
anda boleh melihat bahawa pengguna ialah Current user
, kaedah sambungan ialah xx@localhost
Localhost via UNIX socket
Apabila parameter adalah -h
, ia sebenarnya disambungkan menggunakan IP
Contohnya adalah seperti berikut: TCP
[mysql@mysql-test-83 ~]$ /usr/local/mysql57/bin/mysql -utest_user -p -h127.0.0.1 Enter password: ========= 省略 =========== mysql> status -------------- /usr/local/mysql57/bin/mysql Ver 14.14 Distrib 5.7.21, for linux-glibc2.12 (x86_64) using EditLine wrapper Connection id: 11 Current database: Current user: test_user@127.0.0.1 SSL: Cipher in use is DHE-RSA-AES256-SHA Current pager: stdout Using outfile: '' Using delimiter: ; Server version: 5.7.21-log MySQL Community Server (GPL) Protocol version: 10 Connection: 127.0.0.1 via TCP/IP Server characterset: utf8
kita boleh lihat bahawa. pengguna ialah Current user
, dan kaedah sambungan ialah xx@127.0.0.1
TCP/IP
mysql> select version(); +-----------+ | version() | +-----------+ | 8.0.11 | +-----------+ 1 row in set (0.00 sec) mysql> create user test_user@'%' identified by 'test_user'; Query OK, 0 rows affected (0.07 sec)
[root@mysql-test-72 ~]# /usr/local/mysql80/bin/mysql -utest_user -p -hlocalhost Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 9 Server version: 8.0.11 MySQL Community Server - GPL ========= 省略 =========== mysql> status -------------- /usr/local/mysql80/bin/mysql Ver 8.0.11 for linux-glibc2.12 on x86_64 (MySQL Community Server - GPL) Connection id: 9 Current database: Current user: test_user@localhost SSL: Not in use Current pager: stdout Using outfile: '' Using delimiter: ; Server version: 8.0.11 MySQL Community Server - GPL Protocol version: 10 Connection: Localhost via UNIX socket ...
[root@mysql-test-72 ~]# /usr/local/mysql80/bin/mysql -utest_user -p -h127.0.0.1 Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 8 Server version: 8.0.11 MySQL Community Server - GPL ========= 省略 =========== mysql> status -------------- /usr/local/mysql80/bin/mysql Ver 8.0.11 for linux-glibc2.12 on x86_64 (MySQL Community Server - GPL) Connection id: 8 Current database: Current user: test_user@127.0.0.1 SSL: Cipher in use is DHE-RSA-AES128-GCM-SHA256 Current pager: stdout Using outfile: '' Using delimiter: ; Server version: 8.0.11 MySQL Community Server - GPL Protocol version: 10 Connection: 127.0.0.1 via TCP/IP
8.0
, MySQL
termasuk %
localhost
db83-3306>>create user test_user@'%' identified by 'test_user'; Query OK, 0 rows affected (0.00 sec)
[mysql@mysql-test-83 ~]$ /usr/local/mysql57/bin/mysql -utest_user -p -hlocalhost ========= 省略 =========== mysql> status /usr/local/mysql57/bin/mysql Ver 14.14 Distrib 5.7.21, for linux-glibc2.12 (x86_64) using EditLine wrapper Connection id: 9 Current database: Current user: test_user@localhost SSL: Not in use Current pager: stdout Using outfile: '' Using delimiter: ; Server version: 5.7.21-log MySQL Community Server (GPL) Protocol version: 10 Connection: Localhost via UNIX socket ....
[mysql@mysql-test-83 ~]$ /usr/local/mysql57/bin/mysql -utest_user -p -h127.0.0.1 Enter password: ========= 省略 =========== mysql> status -------------- /usr/local/mysql57/bin/mysql Ver 14.14 Distrib 5.7.21, for linux-glibc2.12 (x86_64) using EditLine wrapper Connection id: 11 Current database: Current user: test_user@127.0.0.1 SSL: Cipher in use is DHE-RSA-AES256-SHA Current pager: stdout Using outfile: '' Using delimiter: ; Server version: 5.7.21-log MySQL Community Server (GPL) Protocol version: 10 Connection: 127.0.0.1 via TCP/IP Server characterset: utf8 ...
versi 5.7
, MySQL
termasuk %
localhost
db83-3306>>select version(); +------------+ | version() | +------------+ | 5.6.10-log | +------------+ 1 row in set (0.00 sec) db83-3306>>create user test_user@'%' identified by 'test_user'; Query OK, 0 rows affected (0.00 sec)
[mysql@mysql-test-83 ~]$ /usr/local/mysql57/bin/mysql -utest_user -p -hlocalhost Enter password: ERROR 1045 (28000): Access denied for user 'test_user'@'localhost' (using password: YES)
[mysql@mysql-test-83 ~]$ /usr/local/mysql57/bin/mysql -utest_user -p -h127.0.0.1 Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.6.10-log MySQL Community Server (GPL) ========= 省略 =========== mysql> status -------------- /usr/local/mysql57/bin/mysql Ver 14.14 Distrib 5.7.21, for linux-glibc2.12 (x86_64) using EditLine wrapper Connection id: 3 Current database: Current user: test_user@127.0.0.1 SSL: Not in use Current pager: stdout Using outfile: '' Using delimiter: ; Server version: 5.6.10-log MySQL Community Server (GPL) Protocol version: 10 Connection: 127.0.0.1 via TCP/IP ...... --------------
daripada MySQL 5.6
tidak termasuk%
localhost
mysql> select version(); +-----------+ | version() | +-----------+ | 5.1.73 | +-----------+ 1 row in set (0.00 sec) mysql> create user test_user@'%' identified by 'test_user'; Query OK, 0 rows affected (0.00 sec)
[root@chengqm ~]# mysql -utest_user -p Enter password: ERROR 1045 (28000): Access denied for user 'test_user'@'localhost' (using password: YES)
[root@chengqm ~]# mysql -utest_user -p -h127.0.0.1 Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 4901339 Server version: 5.1.73 Source distribution ========= 省略 =========== mysql> status -------------- mysql Ver 14.14 Distrib 5.1.73, for redhat-linux-gnu (x86_64) using readline 5.1 Connection id: 4901339 Current database: Current user: test_user@127.0.0.1 SSL: Not in use Current pager: stdout Using outfile: '' Using delimiter: ; Server version: 5.1.73 Source distribution Protocol version: 10 Connection: 127.0.0.1 via TCP/IP
versi 5.1
tidak termasuk %
localhost
db83-3306>>select version(); +---------------------+ | version() | +---------------------+ | 10.3.11-MariaDB-log | +---------------------+ 1 row in set (0.000 sec) db83-3306>>create user test_user@'%' identified by 'test_user'; Query OK, 0 rows affected (0.001 sec)
[mysql@mysql-test-83 ~]$ /usr/local/mariadb/bin/mysql -utest_user -p -hlocalhost Enter password: ERROR 1045 (28000): Access denied for user 'test_user'@'localhost' (using password: YES)
[mysql@mysql-test-83 ~]$ /usr/local/mariadb/bin/mysql -utest_user -p -h127.0.0.1 Enter password: Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 12 Server version: 10.3.11-MariaDB-log MariaDB Server ========= 省略 =========== MariaDB [(none)]> status -------------- /usr/local/mariadb/bin/mysql Ver 15.1 Distrib 10.3.11-MariaDB, for Linux (x86_64) using readline 5.1 Connection id: 12 Current database: Current user: test_user@127.0.0.1 SSL: Not in use Current pager: stdout Using outfile: '' Using delimiter: ; Server: MariaDB Server version: 10.3.11-MariaDB-log MariaDB Server Protocol version: 10 Connection: 127.0.0.1 via TCP/IP
daripada MariaDB 10.3
tidak termasuk %
localhost
versi | Adakah dalam pengguna termasuk
|
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---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MySQL8.0 | termasuk | ||||||||||||
MySQL5.7 | Disertakan | ||||||||||||
MySQL5.6 | Tidak disertakan > | ||||||||||||
MySQL5.1 | Tidak disertakan | ||||||||||||
MariaDB 10.3 | Tidak disertakan |