遇到错误1：
[root@backup tmp]# rsync -avz /etc/hosts -e 'ssh -p 22' root@172.16.1.5:/tmp/
rsync: Failed to exec ssh: No such file or directory (2)
rsync error: error in IPC code (code 14) at pipe.c(84) [sender=3.0.6]
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: error in rsync protocol data stream (code 12) at io.c(600) [sender=3.0.6]
从网上找打解决方法讲是没有安装openssh客户端，然后安装尝试一下
[root@backup tmp]# yum -y install openssh-clients.x86_64
安装完成之后有执行一次，发现错误提示变了，说明刚才那个错误已解决然后开始解决新的报错问题
从本地服务器上推送文件到172.16.1.5这台服务器上，发现一直提示这个错误信息。然后在网上找各种解决方法，最终得以解决。
[root@backup tmp]# rsync -avz /tmp/hosts -e 'ssh -p 22' root@172.16.1.5:/tmp/
root@172.16.1.5's password:
bash: rsync: command not found
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: error in rsync protocol data stream (code 12) at io.c(600) [sender=3.0.6]
造成这种原因是因为172.16.1.5这台服务上没有安装rsync这个软件包，安装后得以解决
[root@backup tmp]# rsync -avz /tmp/hosts -e 'ssh -p 22' root@172.16.1.5:/tmp/
root@172.16.1.5's password:
sending incremental file list
hosts
sent 124 bytes received 31 bytes 62.00 bytes/sec
total size is 158 speedup is 1.02
[root@lb01 tmp]# ifconfig eth1| awk -F "[ :]+" 'NR==2 {print $4}'
172.16.1.5
[root@lb01 tmp]# ls /tmp/
hosts
对端没有配置文件里面的目录不存在
[root@nfs01 sh]# rsync -avz /backup/ rsync_backup@172.16.1.41::backup/ --password-file\=/etc/rsync.password
@ERROR: chdir failed
rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6]
对端配置文件里面的目录存在，但是权限被拒绝
[root@nfs01 sh]# rsync -avz /backup/ rsync_backup@172.16.1.41::backup/ --password-file\=/etc/rsync.password
sending incremental file list
./
rsync: failed to set times on "." (in backup): Operation not permitted (1)
1/
rsync: recv_generator: mkdir "1" (in backup) failed: Permission denied (13)
*** Skipping any contents from this failed directory ***
sent 46 bytes received 15 bytes 122.00 bytes/sec
total size is 0 speedup is 0.00
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1039) [sender=3.0.6]
模块名称错误
[root@nfs01 sh]# rsync -avz /backup/ rsync_backup@172.16.1.41::baskup/ --password-file\=/etc/rsync.password
@ERROR: Unknown module 'baskup'
rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6]
服务端虚拟用户不存在
[root@nfs01 sh]# rsync -az /backup/ rsync_backup@172.16.1.41::backup/ --password-file\=/etc/rsync.password
@ERROR: invalid uid rsync
rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6]
服务端没有backup模块里面的密码文件，客户端和服务端的密码文件密码不一致
[root@nfs01 sh]# rsync -az /backup/ rsync_backup@172.16.1.41::backup/ --password-file\=/etc/rsync.password
@ERROR: auth failed on module backup
rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6]
在传输的时候远程模块名称前面多写了一个“/”
[root@nfs01 /]# rsync -avz /tmp/ rsync_backup@172.16.1.41::/backup/ --password-file\=/etc/rsync.password
ERROR: The remote path must start with a module name not a / #远程路径必须是模块名称
rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6]
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