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Use –databases option for exporting several databases. mysqldump -u username -ppassword –databases db_name1 >dump.sql

To damp all MySQL databases, use the –all-databases option. mysqldump -u username –p password –all-databases > dump.sql

For exporting MySQL database’s only the data, use –no-create-info option. The dump will not re-create the database, tables, fields, and other structures when importing. mysqldump -u username -ppassword –no-create-info database_name > dump.sql Use this …

There are two methods to backup MySQL, first method is by copying all files such have extentions *.frm, *.MYD, and *.MYI, and second is by using mysqlhotcopy utility, this methods are only for MyISAM tables.

Mail content text is /tmp/message.txt mail -s 'Server Status Report' [email protected] -c [email protected] < /tmp/message.txt Sending mail with attachment # !/bin/bash tar -zcf /tmp/backup.tar.gz /home/david/files echo | mutt -a /tmp/backup.tar.gz -s “daily backup of data” …

/sbin/ifconfig ppp1 down /sbin/ip link set ppp1 name my_ppp /sbin/ifconfig my_ppp up

Problem kernel: irq 153: Please try booting with acpi=off and report a bug Apr 2 11:14:17 localhost kernel: irq 153: nobody cared! (screaming interrupt?) Apr 2 11:14:17 localhost kernel: irq 153: Please try booting with …

The Seven Layers of the OSI Model 7 Application Network Process to Application   Provides network services processes to application processes (such as electronic mail, file transfer,…) Provides user authentication         6 …

/etc/defaults/rc.conf Here is the original FreeBSD /etc/services file # /etc/services: # $Id: etcservices.txt,v 1.2 2005/12/18 13:54:31 francis Exp $ # # Network services, Internet style # # Note that it is presently the policy of …

Linux directory structure Mount Point Explanation / Root directory /bin Main program /boot Used at boot /dev directory Where the registered user devices (modem, mouse, keyboard, etc.) /etc Configuration files /home Home directories of users, …