You may have heard or encountered something like this: A system administrator accidentally entered the "Chmod-r 777/" so that the great tragedy caused the entire system has been seriously damaged. In day-to-day management, we have a number of tools that can be used to back up file permissions, such as CP, Rsync, Etckeeper, and so on. If you use this backup tool, you really don't need to worry about changing file
Linux ext2 file System Restore deleted filesRelease Date: 2002-08-08Article content:--------------------------------------------------------------------------------by deepin@nsfocus.comHttp://www.nsfocus.comFrom an emergency response, the customer received over 100 messages on the QMail mail server via FoxmailAfter the deletion,But it's important to find these emails and help us recover on the mail server.B
Configure MongoDB configuration items in the configuration file and back up and restore the database, mongodb backup and recoveryI. mongoDB command line startup option Configuration
When mongodb is started using the command line, we can select some options to change the configuration. The specific options are as follows:
1. -- dbpath: Each mongodb operation requires an independent data storage directory. If
database Mount (read the control file according to the address of the control file recorded in the parameter file)SQL> alter database open (read the data file and open the database based on the data file address recorded in the control
Environment: rhel5.5, Oracle10.2.0.1xmanager4.0, after backing up the control file, perform a series of operations on the database to close the database; restore the control file, start
Environment: rhel 5.5, Oracle10.2.0.1 xmanager4.0 after backing up the control file, you can perform a series of operations on the dat
Quickly Restore a table named mysqldump from the mysqldump file
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Quickly Restore a table from the mysqldump file
In many cases, we need to restore a table from the mysqldump backup file. the common practice is to
You may have heard or encountered something like this: A system administrator rookie accidentally entered "Chmod-r 777/" resulting in a huge tragedy, causing the entire system to be seriously damaged. In daily management, we have many tools that can be used to back up file permissions such as CP, rsync, Etckeeper, etc. If you use this backup tool, you really don't need to worry about changing file permissio
In the WIN8 system, a new feature of file history that has backup and restore capabilities to protect files. It is possible that many WIN8 system new users do not know how to restore the file skills. The following small series to explain.
The method is as follows:
Enable the file
1 HD movie format before and after the file system is one of the Ntfs/exfat/fat32, and the format of the HD movie file size and location has not changed.
2 If the file system is one of the Ntfs/exfat/fat32 before the HD movie file, but the formatted partition has changed, please select "Partition
Ransomware CoinVault: Get the money and give you a chance to restore the file
Restore a file for free
Recently, a new software named CoinVault ransomware, which uses 256-bit AES to encrypt the victim's hard disk. The software has a similar interface and will also prohibit vulnerability scanning. The difference is that
1. Open SQL Server Management Studio and right-click a database Selection task---Restore--database4. In the pop-up window, select the device in the source option--point to select the device--point and then select your backup file name--Add a point to return, this time the device bar should appear the database backup file name you just selected. The backup number
The SQL restoration method for the master database is only for how to restore the mdf file database, mastermdf
First, let's talk about how SQL Server restores the master database. The specific steps are as follows:
Step 1:CopyModel. mdf, mastlog. ldf, model. mdf, modellog. ldf, msdbdata. mdf, msdblog. ldfFile.From X: \ Program Files \ Microsoft SQL Server \ MSSQL10.MSSQLSERVER \ MSSQL \ Binn \ TemplatesTo X
The PSC file is a backup file generated with the Navicat tool and can only be recovered using the Navicat tool.
(i) Error occurrence steps
1 Connect MySQL with Navicat
2 Create a new database, name arbitrarily take, such as MYDB1, character set select Utf-8 (because the backup file is Utf-8)3 Select MYDB1 Database--> backup-->
; cd controlfileASMCMD> lsCurrent.260.787304065ASMCMD> rm-f *4. Start the database to the nomount status.
5. Dump control files from backup setRMAN> restore controlfile from '+ dgasm/backup/ctl_ora11_37 ';Starting restore at 30-JUN-12Using target database control file instead of recovery catalogAllocated channel: ORA_DISK_1Channel ORA_DISK_1: SID = 26 device type
Figure 2
After the installation, the software automatically run up, we can see the software has a "restore deleted files" This function, suitable for us this return disk mistakenly deleted the situation. Let's select the "Recover deleted Files" feature, and then click the "Next" button.
Figure 3
Next is to select the letter to scan, where the U disk letter is K:, we choose it, and then click the Next button
Fi
You cannot back up data at any time when the log file is updated during the 15 days of MySQL study notes. However, when your data is lost or the files in the database directory are damaged, you can only restore the files that have been backed up, the inserted or updated data after this will be powerless. Solve this problem
You must use the update log. The update log records the SQL statements for updating,
'test _ log' file of the database 'test' (located on file 1 ).The backup log operation successfully processed two pages and took 0.111 seconds (0.087 MB/second ).
9. Restore the oldest full backup1> Restore database test from disk = 'd: Program filesmicrosoft SQL servermssqlBackup est_1.bak 'with norecovery2> go96 pa
Database ' Test ' (located on file 1).
The BACKUP LOG operation successfully processed 2 pages and took 0.111 seconds (0.087 Mb/sec).
9 to restore the oldest full backup
1> RESTORE DATABASE test from disk= ' D:program filesmicrosoft SQL servermssql
BACKUP Est_1.bak ' with NORECOVERY
2> Go
Processed 96 pages that belong to the
, it uses the Response.IsClientConnected property to check whether the client is still holding the connection. If you remain connected, it continues to send stream bytes, or it stops to prevent the server from sending unnecessary data.
This is the approach we use, especially when downloading temporary files. When IsClientConnected returns false, you know that the download process is interrupted, you should save the file, and conversely, when the proce
Address: http://hi.baidu.com/%C9%E1%B5%C30710/blog/item/03056c12d0b7d530dc5401c9.html
(1) A brief introduction to the ext3 File System StructureIn the ext3 File System Used in Linux, files are stored in blocks. By default, the size of each block is 1 K. Different blocks are distinguished by block numbers. Each file has a node that contains information
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