Go to the command line and type: nalwin
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:>nalwin
C:>
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Go to the command line and type: nalwin
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:>nalwin
C:>
All you have to do is restart bind to clear its cache:
root# /etc/init.d/named restart
You can also use rndc command as follows flush out all cache:
root# rndc restart
or
root# rndc exec
BIND v9.3.0 and above will support flushing all of the records attached to a particular domain name with rndc flushname command.
root# rndc flushname domain.name.com
It is also possible to flush out BIND views. For example, lan and wan views can be flushed using the following command:
root# rndc flush lan
root# rndc flush wan
The mysqldump command creates a text version of the database. Specifically, it creates a list of SQL statements which can be used to restore/recreate the original database.
The syntax is:
# mysqldump -u root -p[root_password] [database_name] > backup.sql
– backup.
# mysql -u root -p[root_password] [database_name] < backup.sql
- restore.
Back up a single database:
The mysqldump command will backup the mydb database and dumps the output to the mydb.sql file
# mysqldump -u root -pmysqlpassword mydb > mydb.sql
Actually, if you don't provide a password at this stage, later you will be prompted for it.
Back up the multiple databases:
# mysqldump -u root -pmysqlpassword --databases mydb somedb > mydb_somedb.sql
Back up all of the databases:
# mysqldump -u root -pmysqlpassword --all-databases > all_databases.sql
Back up a specific table:
In this example, we takes a back up only of the users table from the mydb database.
# mysqldump -u root -pmysqlpassword mydb users > mysb_table_users.sql
To restore the MySQL database from a backup:
Execute the mysql command with "<" as shown below. If you are going to restore the mydb.sql to a different server, the mydb database must be created on this server.
# mysql -u root -pmysqlpassword
mysql> create database mydb;
Query OK, 1 row affected (0.02 sec)
# mysql -u root -pmysqlpassword mydb < mydb.sql
If you are trying to restore a single database from dump of all the databases, you have to let mysql know like this:
mysql --one-database database_name < all_databases.sql
To clean up memory of unnecessary things run sync first to flush useful things out to disk.
root# sync
To free pagecache: echo 1 > /proc/sys/vm/drop_caches
To free dentries and inodes: echo 2 > /proc/sys/vm/drop_caches
To free pagecache, dentries and inodes: echo 3 > /proc/sys/vm/drop_caches
Laziness, laziness, laziness …