pki recovery

Encryption and decryption authentication 1. symmetric encryption single-key encryption: advantages: 1. faster than asymmetric key encryption 2. A large number of digits is hard to crack. Disadvantages: 1. A security mechanism is required to

    Phase 1 Using Preshared Keys IKE's main mode has six packages, and the six packages are divided into three stages: 1: These first two packets define the algorithms and hashes used to secure the IKE communications and are agreed upon in

The online revocation service is a new component introduced in Windows Server 2008. Is the Microsoft deployment of the OCSP protocol. This feature, coupled with the new OCSP answering service, is a big boost compared to CRL based revocation. The

Server RAID 5 Data recovery caseThis shared case is a RAID disk array in a server, with 12 disks in the disk array, a single-disk capacity 500g,ext3 file system, and a Linux platform for the system platform. Raid in 2nd and 6th, two hard disks reported yellow lights, management personnel after the check on the 6th plate has been forced on-line operation, forced on-line found that most of the directory can not open, there are some directories in the di

My colleague Xiao Wang has a serious problem with the Windows XP system that needs to be reinstalled. This can make Xiao Wang angry, reload system means not only to the system of all the upgrade patch reinstall, but also to install all the software again, this will not waste a lot of time? In fact, Windows XP users need to do the prevention work ahead of time, restore their own computer system is not so cumbersome. Because you have a weapon in your Windows XP system that restores your system-th

location is 0 outside the area, often referred to as negative tracks. Similarly, as with the file, due to sudden power outages and negative tracks, and so on, can also cause firmware information loss or corruption, which causes the hard disk to be recognized or mistaken, so that the data can not read properly. In this case, the PC3000, HRT and other disk underlying tools for the firmware area can be rewritten or modified to read the data normally. However, the problem of the firmware area of th

Label:monmatchledcheck cause Fault alsconfig data type Data type MongoDB 3.x data capacity GB Failure type Server power loss causes WIREDTIGER.WT file corruption Start error detected data files in E:\DTLFolder\MongoDB\ Data created by the ' Wiredtiger ' storage engine, so setting the active storage engine to ' Wiredtiger '. 2018-05-08t16:10:09.755+0800 I STORAGE [initandlisten] Wiredtiger_open config:create,cache_size=18g,session_ Max=20000,eviction= (threads_max=4), config_base=false,stati

Label:1. Environment Readiness 1.1 Confirm database version1.2 Confirming database archiving1.3 Backing Up Database files2 The database recovery after the analog control file is lost (Full recovery).2.1 Viewing Control file Locations2.2 Deleting a control file after performing an action2.3 Starting the databaseStart the database when the database error occurred, prompted unable to confirm the control file,

Operation Steps: Factory pre-installed dos for Windows 8 hidden partition One-click Recovery 8.0 You can set up an initial backup to restore the initial backup state system use. The specific actions are as follows: 1. The first time to get the machine, install the operating system Windows 8 system and factory random drive disc; 2. Boot Press F2 appear rescue System 4.0 interface Select one key recovery;

One, example demo Bacula Full recovery function 1. Full recovery via differential backup Action steps are as follows: *status status Available for:1: Director 2:storage 3:client 4:all Select daemon Type For status (1-4): 1 f10-64-build-dir version:3.0.2 (July 2009) X86_64-unknown-linux-gnu Redhat Daemon started 21- Aug-09 15:01, 1 Job run since started. heap:heap=253,952 smbytes=84,808 max_bytes=

Faults in Oracle are divided into the following 4 types.1) Statement failureA logical failure occurred during the execution of the SQL statement when the statement failed. For example, inserting invalid data into a table that violates a constraint, or if there is no space in the table space, the data cannot be inserted. At this point, the application person or DBA will handle the situation accordingly and can.2) User Process failureWhen a user program fails to access the Oracle database, a user

Case 3--A partial archive log was lost while doing a full recovery (recover database until cancel;) 1. Incomplete recovery based on cancel --Simulation environment Sql> Col table_name for A20 Sql> Col Tablespace_name for A10 Sql> select Table_name,tablespace_name from User_tables; TABLE_NAME Tablespace -------------------- ---------- DEPT USERS EMP USERS BONUS USERS Salgrade USERS EMPLOYEES USER

Delete Sam file, clear Administrator account password Find the password from the SAM file 1.l0phtcrack (LC) 2.LCP 3.SamInside Pro Third, with net user command to restore the system login user password Set up new password with password reset disk V. Modify the screensaver file method VI. Use software to modify passwords Windows XP NT Password Recovery Key Cleanpwd Offline NT Password Registry Editor Winternals Administrator ' s ERD Commander 2002/2003

Rman Based on Time Incomplete recovery SQL> select sysdate from dual; SYSDATE-------------------2013-07-31 22:36:51 run {SQL 'alter session nls_date_format = "yyyy-mm-dd hh24: mi: ss "'set until time' 2013-07-31 22:45:51 'restore database; recover database; alter database open resetlogs;} -- command points, the VM will not move when the time is off, restore database; recover database until time '2017-07-31 22:46:51 '; alter database open resetlogs; SS

different machine restoresCold Backup Recovery methodA, do not create an instance: (The database name on the source machine is ORCL)① the Oradata directory on the target computer to establish the ORCL folder, copy the source of all the data files and online redo files to this directory.② set up the Orcl folder in the Admin directory on the target machine, and then create the Adump, Bdump, Cdump, Udump, Dpdump, pfile six folders in ORCL.③ the source c

2.1. Data Recovery strategy determines Backup strategyYou are designing a backup strategy. If the data recovery needs and data recovery strategy starts. Each type of data recovery requires that you take the appropriate backup type.Failure occurs in user error, data File block corruption, media failure. The speed at whi

? Perform a full recovery after losing critical or non-critical data files? Restore with incremental update backup? Switch to image copy for quick recovery? Restore the database to a new host? Using Backup control files for recovery Using the Rman Restore and recover commands ? Restore command: Restoring a database file from a backup? Recover comman

I. Backup and Recovery Overview1. Backup and Recovery Overview1.1 What is Backup and Recovery?Generally, backup and recovery references various policies and procedures to protect your database from data loss, and recreate the database after any data loss.1.1.1 Physical Backups and Logical BackupsA backup is a copy of a

Tags: name error technology share replacement how to query Flash recovery free related informationOracle 11g R2 Rman BackupDefinition and classification of backup and recovery Definition and classification of backup: 备份就是把数据库复制到转储设备的过程。其中，转储设备是指用于放置数据库副本的磁带或磁盘。通常也将存放于转储设备中的数据库的副本称为原数据库的备份或转储。备份是一份数据副本，从不同的角度分类如下： From a physical and logical point of view: From physical and logical, backups can be divid

MySQLXtrabackup backup and recovery bitsCN.com Xtrabackup is a data backup tool for InnoDB. it supports online hot backup (which does not affect data reading and writing during backup) and is a good alternative to InnoDB Hotbackup. Xtrabackup has two main tools: xtrabackup and innobackupex. xtrabackup can only back up InnoDB and XtraDB data tables. innobackupex encapsulates xtrabackup and can back up MyISAM data tables. 1. install mysql 2. install Xtr