Linux File Sync Tool-rsync

Linux file Sync Tool-rsync

Install package

yum install -y rsync

Rsync Common Options

-A: Archive mode, which means to transfer files recursively and maintain all properties;-rlptgod;
-r: Synchronize the directory to add, similar to CP when adding r;
-V: Display some information when synchronizing, let us know synchronous country creates;
-L: Keep soft links;
-L: Synchronization of soft links will be the source files to synchronize;
-P: Preserve file permission attributes;
-O: Keep the owner of the file;
-G: Keep the genus Group of files;
-D: Maintain device file information;
-T: Keep the file's time attribute;
--delte: Delete files in dest that are not in SRC;
--exclude: Filter the specified file, such as--exclude "Logs" will filter out the file log, out of sync;
-P: Shows the synchronization process, such as rate, more detailed than-V;
-U: If the file in dest is newer than SRC, it is out of sync;
-Z: compression when testing;

Backup

Rsync-av/etc/passwd/tmp/1.txt
Back up the/etc/passwd to the Tmp/1.txt file

[[email protected] ~]# rsync -av /etc/passwd /tmp/1.txtsending incremental file listpasswdsent 1229 bytes  received 31 bytes  2520.00 bytes/sectotal size is 1155  speedup is 0.92[[email protected] ~]# ls /tmp/1.txt

Back up to a remote computer

rsync-av/etc/passwd [Email Protected]:/tmp/2.txt
Synchronizing the/etc/passwd files to the/tmp/2.txt of the 192.168.188.2 machine

[[email protected] ~]# rsync -av /etc/passwd [email protected]:/tmp/2.txtThe authenticity of host ‘192.168.188.2 (192.168.188.2)‘ can‘t be established.ECDSA key fingerprint is SHA256:vl9780juEAW/PspOqj/J4E4yHiQtIG6ZQ2R9S1OAdb8.ECDSA key fingerprint is MD5:f8:71:01:1c:c1:71:88:97:d8:ca:25:88:79:45:17:1b.Are you sure you want to continue connecting (yes/no)? yesWarning: Permanently added ‘192.168.188.2‘ (ECDSA) to the list of known hosts.[email protected]‘s password:sending incremental file listpasswdsent 1229 bytes  received 31 bytes  168.00 bytes/sectotal size is 1155  speedup is 0.92[[email protected] ~]# ls /tmp/1.txt2.txt[[email protected] ~]#

Backup to a remote computer (in case of SSH modified port)

Rsync-avp-e "Ssh-p"/root/abc/[email protected]:/tmp/test2/

[[email protected] tmp]# rsync -avP -e "ssh -p 22" /root/abc/ [email protected]:/tmp/test2/[email protected]‘s password:sending incremental file listsent 365 bytes  received 19 bytes  109.71 bytes/sectotal size is 255434  speedup is 665.19[[email protected] tmp]#

Note: To backup to a remote server, both servers must have the Rsync package installed before they can be backed up;

Synchronizing folders

rsync-av/root/abc//tmp/111_dest/

[[email protected] ~]# rsync -av /root/abc/ /tmp/111_dest/sending incremental file listcreated directory /tmp/111_dest./1.txt2.txt3.txtip.txta/a/1.txta/2.txta/b/a/b/2.txta/b/c/a/k/a/k11/a/s/test/test/1.txttest/2.txttest/a.txtsent 256259 bytes  received 233 bytes  512984.00 bytes/sectotal size is 255434  speedup is 1.00[[email protected] ~]# cd /tmp/[[email protected] tmp]# ls111_dest  systemd-private-603500798f13486a90f57d6e2dd53912-chronyd.service-UCHrHd1.txt     systemd-private-603500798f13486a90f57d6e2dd53912-vgauthd.service-UNh9hx2.txt     systemd-private-603500798f13486a90f57d6e2dd53912-vmtoolsd.service-JJIguS[[email protected] tmp]#

Delete files from the backup directory that are not part of the source

Rsync-av--delete/root/abc//tmp/111_dest/
Back up the files in the/root/abc/folder to the/tmp/111_dest/directory,
and delete files in/tmp/111_dest/that do not belong to/root/abc/;

[[email protected] 111_dest]# touch new.txt[[email protected] 111_dest]# ls1.txt  2.txt  3.txt  a  ip.txt  new.txt  test[[email protected] 111_dest]# rsync -av --delete /root/abc/ /tmp/111_dest/sending incremental file list./deleting new.txtsent 354 bytes  received 22 bytes  752.00 bytes/sectotal size is 255434  speedup is 679.35[[email protected] 111_dest]# ls1.txt  2.txt  3.txt  a  ip.txt  test[[email protected] 111_dest]#

Filter specified file is not synchronized

Rsync-av--exclude ". 123"/root/abc//tmp/111_dest/
back up/root/abc/to/tmp/111_dest/, but do not back up the. 123 files in the past;

[[email protected] abc]# ls1.txt  2.txt  3.txt  a  a.123  ip.txt  test[[email protected] abc]# cat a.123[[email protected] abc]# rsync -av --exclude "*.123" /root/abc/ /tmp/111_dest/sending incremental file list./sent 354 bytes  received 22 bytes  752.00 bytes/sectotal size is 255434  speedup is 679.35[[email protected] abc]# cd /tmp/111_dest/[[email protected] 111_dest]# ls1.txt  2.txt  3.txt  a  ip.txt  test[[email protected] 111_dest]#[[email protected] 111_dest]# ls /root/abc/1.txt  2.txt  3.txt  a  a.123  ip.txt  test[[email protected] 111_dest]#

Protect new files in a backed up file

rsync-avu/root/abc//tmp/111_dest/
If there is a new file in the/tmp/111_dest/than the source file, then protect the new file from being killed synchronously;
And synchronize the/root/abc/to the/tmp/111_dest/;

[[email protected] abc]# cd /tmp/111_dest/[[email protected] 111_dest]# touch new.new[[email protected] 111_dest]# rsync -avu /root/abc/ /tmp/111_dest/sending incremental file list./sent 368 bytes  received 22 bytes  780.00 bytes/sectotal size is 255434  speedup is 654.96[[email protected] 111_dest]# ls1.txt  2.txt  3.txt  a  a.123  ip.txt  new.new  test[[email protected] 111_dest]# ls /root/abc/1.txt  2.txt  3.txt  a  a.123  ip.txt  test[[email protected] 111_dest]#

Methods of synchronizing to other machine methods via SSH

Need to enter a password
rsync-avl/root/abc/[Email protected]:/tmp/test2/
Or
RSYNC-AVL [Email protected]:/tmp/test2//root/abc/

Editing a configuration file by using the background service method

/etc/rsyncd.conf

Add File Contents

port=873        //监听端口873，默认为873端口；log file=/var/log/rsync.log        //指定日志文件pid file=/var/run/rsyncd.pid        //指定pid文件address=192.168.188.2        //指定启动rsyncd服务的ip，默认为全部ip上启动；[test]        //指定模块名，自定义；path=/root/rsync        //指定数据存放路径use chroot=true        //安全仿佛，默认为true,如果有软链接文件建议设置为false；max connections=4        //指定最大连接数，默认为0，没有限制；read only=no        //如果为true，则不能上传到该模块指定目录list=true        //uid=root        //指定传输时使用哪个用户名进行gid=root        //指定传输时使用哪个用户组auth users=test        //指定传输时要使用哪个用户名secrets file=/etc/rsyncd.passwd    //指定密码文件，文件权限为600，格式：用户名：密码hosts allow=192.168.133.132 1.1.1.1 2.2.2.2  192.168.133.0/24        //

Start the service

Rsync--daemon

Synchronization format:

Not completed, tomorrow to be continued

Linux File Sync Tool-rsync