refafunds.blogg.se - Linux daemon sync

#Linux daemon sync update#
#Linux daemon sync archive#
#Linux daemon sync upgrade#
#Linux daemon sync full#

q: The transfer progress bar is not displayed. p: Retain the modification time, access time and access rights of the original file. (will)-C Flag passed to ssh，To turn on the compression function) B: Use batch mode (transmission password or phrase is not asked during transmission) 6: force scp Command use only IPv6 addressing 4: force scp Command use only IPv4 addressing 2: force scp Command usage protocol ssh2 1: force scp Command usage protocol ssh1 Scp command is used to copy files and directories between Linux and for remote replication. a ~]# ll /tmp/a/b/c/ĭrwxr-xr-x 2 root root 6 Dec 29 15:00 test.txt scp command # Create a sample ~]# mkdir -p ~]# cp -ar. # cp is not the focus of this article, just one

#Linux daemon sync upgrade#

This option can be used to upgrade and standby the file

#Linux daemon sync update#

If the target file is different from the source file, use this option to update the target file.

Format: cp source file destination file.

#Linux daemon sync full#

👉 Concept reference: Full volume, incremental, differential backup When restoring, we only need to restore the first full backup and the last differential backup. Differential backup refers to the backup of files added or modified between a full backup and a differential backup.

#Linux daemon sync archive#

In other words, archive attributes are not cleared. It does not clear the mark, that is, it does not mark files as backed up after backup. During differential backup, only those selected files and folders marked are backed up.

Differential backup: backup data that has changed since the last full backup.

Incremental backup: incremental backup refers to the backup of all changed files after the previous backup (including full backup, differential backup and incremental backup), which takes a short time.

Full backup: full backup refers to a full copy of all data or applications at a certain point in time, which takes a long time.

Support anonymous live authentication (without system users) process mode transmission, which can realize convenient and safe data backup and mirroring.

You can transfer files and data (server and client) through socket (process mode).

You can use rcp, rsh, ssh and other methods to transfer files (rsync itself does not encrypt data).

Incremental synchronization can be realized, which only synchronizes the changed data, so the data transmission efficiency is very high (tar-N).

You can keep all attributes of the original file or directory, such as permission, time, soft and hard links, owner, group, etc.

It can exclude the synchronization of specified files or directories, which is equivalent to the exclusion function of the packaging command tar.

Support copying special files, such as connection files, devices, etc.

It can realize data synchronization between different hosts, and also supports full and incremental synchronization

rsync is called remote synchronization for short.

rsync operation mode: C / s client / server.

cp is a full copy every time, while rsync can copy incrementally. But it is also better than the cp command. Of course, rsync can also replicate data between different partitions or directories of the local host in full and incremental amounts, which is similar to the cp command.

scp is copied in full every time, while rsync can be copied in increments. This function is similar to the scp command with ssh, but better than the scp command. It can be seen from the name of the software that rsync has the functions of fast data replication, synchronous mirroring and remote backup between local and remote hosts. Rsync is called remote synchronization in English.