Rsync服务错误汇总

1. rsync服务端开启的iptables防火墙
   【客户端的错误】
   No route to host
     【错误演示过程】
   [root@nfs01 tmp]# rsync -avz /etc/hosts [email protected]::backup
   rsync: failed to connect to 172.16.1.41: No route to host (113)
   rsync error: error in socket IO (code 10) at clientserver.c(124) [sender=3.0.6]
     【异常问题解决】
   关闭rsync服务端的防火墙服务（iptables）
   [root@backup mnt]# /etc/init.d/iptables stop
   iptables: Setting chains to policy ACCEPT: filter          [  OK  ]
   iptables: Flushing firewall rules:                         [  OK  ]
   iptables: Unloading modules:                               [  OK  ]
   [root@backup mnt]# /etc/init.d/iptables status
   iptables: Firewall is not running.
2. rsync客户端执行rsync命令错误
   【客户端的错误】
   The remote path must start with a module name not a / 
     【错误演示过程】
   [root@nfs01 tmp]# rsync -avz /etc/hosts [email protected]::/backup
   ERROR: The remote path must start with a module name not a /
   rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6]
     【异常问题解决】
   rsync命令语法理解错误，::/backup是错误的语法，应该为::backup(rsync模块)
3. rsync服务认证用户失败
   【客户端的错误】
   auth failed on module zhangxianwei
     【错误演示过程】
   [root@nfs01 tmp]# rsync -avz /etc/hosts [email protected]::backup
   Password: 
   @ERROR: auth failed on module backup
   rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6]
     【异常问题解决】
   1. 密码真的输入错误，用户名真的错误
   2. secrets file = /etc/rsync.password指定的密码文件和实际密码文件名称不一致 信息复制粘贴
   3. /etc/rsync.password文件权限不是600
   4. rsync_backup:123456  密码配置文件后面注意不要有空格
      如何看出文件结尾空格信息：
        方法一：在vim编辑中查看
        底行模式---:set list 
        方法二：在cat命令中查看
        [root@backup ~]# cat -A /etc/rsync.password 
      rsync_backup:zhangxianwei123 $
   5. rsync客户端密码文件中只输入密码信息即可，不要输入虚拟认证用户名称
4. rsync服务位置模块错误
   【客户端的错误】
   Unknown module 'backup'   
     【错误演示过程】  
   [root@nfs01 tmp]# rsync -avz /etc/hosts [email protected]::backup
   @ERROR: Unknown module 'backup'
   rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6]
     【异常问题解决】
   1. /etc/rsyncd.conf配置文件模块名称书写错误
5. rsync服务权限阻止问题
   【客户端的错误】
   Permission denied
     【错误演示过程】 
   [root@nfs01 tmp]# rsync -avz /etc/hosts [email protected]::backup
   Password: 
   sending incremental file list
   hosts
   rsync: mkstemp ".hosts.5z3AOA" (in backup) failed: Permission denied (13) 
   sent 196 bytes  received 27 bytes  63.71 bytes/sec
   total size is 349  speedup is 1.57
   rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1039) [sender=3.0.6]   
     【异常问题解决】
   1. 备份目录的属主和属组不正确，不是rsync
   2. 备份目录的权限不正确，不是755
6. rsync服务备份目录异常
   【客户端的错误】
   chdir failed   
     【错误演示过程】   
   [root@nfs01 tmp]# rsync -avz /etc/hosts [email protected]::backup
   Password: 
   @ERROR: chdir failed
   rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6]
     【异常问题解决】  
   1. 备份存储目录没有建立
   2. 建立的备份存储目录和配置文件定义不一致
      说明：如果没有备份存储目录
7. rsync服务无效用户信息
   【客户端的错误】
   invalid uid rsync 
     【错误演示过程】    
   [root@nfs01 tmp]# rsync -avz /etc/hosts [email protected]::backup
   Password: 
   @ERROR: invalid uid rsync
   rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6]
     【异常问题解决】  
   rsync服务对应rsync虚拟用户不存在了
8. 客户端已经配置了密码文件，但免秘钥登录方式，依旧需要输入密码
   【客户端的错误】
   password file must not be other-accessible
     【错误演示过程】 
   [root@nfs01 tmp]# rsync -avz /etc/hosts [email protected]::backup --password-file=/etc/rsync.password
   password file must not be other-accessible
   continuing without password file
   Password: 
   sending incremental file list
   sent 26 bytes  received 8 bytes  5.23 bytes/sec
   total size is 349  speedup is 10.26
     【异常问题解决】  
   rsync客户端的秘钥文件也必须是600权限
9. rsync客户端连接慢问题
   【错误日志信息】   名称或者域名 --- IP  dns解析
   错误日志输出      IP  --- 名称或者域名 反向dns解析
   2017/03/08 20:14:43 [3422] params.c:Parameter() - Ignoring badly formed line in configuration file: ignore errors
   2017/03/08 20:14:43 [3422] name lookup failed for 172.16.1.31: Name or service not known
   2017/03/08 20:14:43 [3422] connect from UNKNOWN (172.16.1.31)
   2017/03/08 20:14:43 [3422] rsync to backup/ from rsync_backup@unknown (172.16.1.31)
   2017/03/08 20:14:43 [3422] receiving file list
   2017/03/08 20:14:43 [3422] sent 76 bytes  received 83 bytes  total size 349
   正确日志输出
   2017/03/08 20:16:45 [3443] params.c:Parameter() - Ignoring badly formed line in configuration file: ignore errors
   2017/03/08 20:16:45 [3443] connect from nfs01 (172.16.1.31)
   2017/03/08 20:16:45 [3443] rsync to backup/ from rsync_backup@nfs02 (172.16.1.31)
   2017/03/08 20:16:45 [3443] receiving file list
   2017/03/08 20:16:45 [3443] sent 76 bytes  received 83 bytes  total size 349
     【异常问题解决】
   查看日志进行分析，编写rsync服务端hosts解析文件

10 rsync服务没有正确启动
  【错误日志信息】 
   Connection refused (111)
  【错误演示过程】 
   [root@zhangxianwei-muban ~]#  rsync -avz /etc/hosts [email protected]::backup
   rsync: failed to connect to 172.16.1.41: Connection refused (111)
   rsync error: error in socket IO (code 10) at clientserver.c(124) [sender=3.0.6]
  【异常问题解决】
   [root@zhangxianwei-muban ~]# rsync --daemon
   [root@zhangxianwei-muban ~]# ss -lntup |grep rsync
   tcp    LISTEN     0      5                     :::873                  :::      users:(("rsync",1434,5))
   tcp    LISTEN     0      5                     :::873                  :::      users:(("rsync",1434,4))
   [root@zhangxianwei-muban ~]# rsync -avz /etc/hosts [email protected]::backup
   Password: 
   sending incremental file list
   hosts  
   sent 196 bytes  received 27 bytes  49.56 bytes/sec
   total size is 349  speedup is 1.57