Rsync服务常见问题汇总讲解:
==================================
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rsync服务端开启的iptables防火墙
客户端的错误现象:No route to host
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[root@nfs01tmp]
# rsync -avz /etc/hosts rsync_backup@172.16.1.41::backup
rsync
:failed to connect to 172.16.1.41: No route to host (113)
rsyncerror: error
in
socket IO (code 10) at clientserver.c(124) [sender=3.0.6]
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异常问题解决:
关闭rsync服务端的防火墙服务(iptables)
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[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.
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rsync客户端执行rsync命令错误:
客户端的错误现象:
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[root@nfs01 tmp]
# rsync -avz /etc/hosts rsync_backup@172.16.1.41::/backup
ERROR: Theremote path must start with a module name not a /
rsyncerror: error starting client-server protocol (code 5) at main.c(1503)[sender=3.0.6]
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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)
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@ERROR: auth failed on module oldboy
客户端的错误现象:
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[root@nfs01 tmp]
# rsync -avz /etc/hosts rsync_backup@172.16.1.41::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]
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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
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
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
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Unknown module 'backup'
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[root@nfs01 tmp]
# rsync -avz /etc/hostsrsync_backup@172.16.1.41::backup
@ERROR: Unknown module
'backup'
rsync
error: error starting client-server protocol(code 5) at main.c(1503) [sender=3.0.6]
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异常问题解决:
1./etc/rsyncd.conf配置文件模块名称书写错误
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Permission denied
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[root@nfs01 tmp]
# rsync -avz /etc/hostsrsync_backup@172.16.1.41::backup
Password:
sending incremental
file
list
hosts
rsync
: mkstemp
".hosts.5z3AOA"
(inbackup) 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]
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异常问题解决:
1.共享目录的属主和属组不正确,不是rsync
2.共享目录的权限不正确,不是755
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chdir failed
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[root@nfs01 tmp]
# rsync -avz /etc/hostsrsync_backup@172.16.1.41::backup
Password:
@ERROR: chdir failed
rsync
error: error starting client-server protocol(code 5) at main.c(1503) [sender=3.0.6]
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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
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[root@backupbackup]
# /etc/init.d/xinetd restart
shell-init: error retrieving current directory:getcwd: cannot access parent directories: No such
file
or directory
Stopping xinetd: [ OK ]
Starting xinetd: shell-init: error retrievingcurrent directory: getcwd: cannot access parent directories: No such
file
ordirectory
[ OK ]
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说明:如果没有备份存储目录,xinetd服务都不能正确启动
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invalid uid rsync
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[root@nfs01 tmp]
# rsync -avz /etc/hostsrsync_backup@172.16.1.41::backup
Password:
@ERROR: invalid uid
rsync
rsync
error: error starting client-server protocol(code 5) at main.c(1503) [sender=3.0.6]
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异常问题解决:
rsync服务对应rsync虚拟用户不存在了
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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
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passwordfile must not be other-accessible
[root@nfs01 tmp]
# rsync -avz /etc/hostsrsync_backup@172.16.1.41::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
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异常问题解决:
rsync客户端的秘钥文件也必须是600权限
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rsync客户端连接慢问题
错误日志输出
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2017
/03/08
20:14:43 [3422] params.c:Parameter() -Ignoring badly formed line
in
configuration
file
: ignore errors
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2017/03/0820:14:43 [3422] name lookup failed for 172.16.1.31: Name or service not known
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2017
/03/08
20:14:43 [3422] connect from UNKNOWN(172.16.1.31)
2017
/03/08
20:14:43 [3422]
rsync
to backup/ fromrsync_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
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正确日志输出
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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 nfs02(172.16.1.31)
2017
/03/08
20:16:45 [3443]
rsync
to backup/ fromrsync_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
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异常问题解决:
查看日志进行分析
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rsync服务没有正确启动
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Connection refused (111)
[root@oldboy-muban ~]
# rsync -avz /etc/hostsrsync_backup@172.16.1.41::backup
rsync
: failed to connect to 172.16.1.41: Connectionrefused (111)
rsync
error: error
in
socket IO (code 10) atclientserver.c(124) [sender=3.0.6]
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解决 rsync服务没开启
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[root@oldboy-muban ~]
# rsync --daemon
[root@oldboy-muban ~]
# ss -lntup |grep rsync
tcp LISTEN 0 5 :::873 :::*
users
:((
"rsync"
,1434,5))
tcp LISTEN 0 5 *:873 *:*
users
:((
"rsync"
,1434,4))
[root@oldboy-muban ~]
# rsync -avz /etc/hostsrsync_backup@172.16.1.41::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
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