rsync服務端開啟的iptables防火墻
客戶端的錯誤現象
No route to host
錯誤演示程序
[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]
例外問題解決
關閉rsync服務端的防火墻服務（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.
rsync客戶端執行rsync命令錯誤
客戶端的錯誤現象
[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]
例外問題解決
rsync命令語法理解錯誤，::/backup是錯誤的語法，應該為::backup(rsync模塊)
@ERROR: auth failed on module nfsnobody
客戶端的錯誤現象
[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]
例外問題解決
1. 密碼真的輸入錯誤，用戶名真的錯誤
2. secrets file = /etc/rsync.password指定的密碼檔案和實際密碼檔案名稱不一致
3. /etc/rsync.password檔案權限不是600
4. rsync_backup:nfsnobody123密碼組態檔后面注意不要有空格
echo "rsync_backup:nfsnobody123" >>/etc/rsync.password
5. rsync客戶端密碼檔案中只輸入密碼資訊即可，不要輸入虛擬認證用戶名稱
Unknown module 'backup'
客戶端的錯誤現象
[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]
例外問題解決
/etc/rsyncd.conf組態檔模塊名稱書寫錯誤
Permission denied
客戶端的錯誤現象
[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]
例外問題解決
1. 共享目錄的屬主和屬組不正確，不是rsync
2. 共享目錄的權限不正確，不是755
chdir failed
客戶端的錯誤現象
[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]
例外問題解決
1. 備份存盤目錄沒有建立
2. 建立的備份存盤目錄和組態檔定義不一致
invalid uid rsync
客戶端的錯誤現象
[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]
例外問題解決
rsync服務對應rsync虛擬用戶不存在了，重新創建即可，
客戶端已經配置了密碼檔案，但免秘鑰登錄方式，依舊需要輸入密碼
客戶端的錯誤現象
password file must not be other-accessible
[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
例外問題解決
rsync客戶端的秘鑰檔案也必須是600權限
rsync客戶端連接慢問題
客戶端的錯誤日志
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
客戶端的正確日志
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
例外問題解決
查看日志進行分析
rsync服務沒有正確啟動
客戶端的錯誤現象
Connection refused (111)
[root@nfsnobody ~]# 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]
例外問題解決
[root@nfsnobody ~]# rsync --daemon
[root@nfsnobody ~]# ss -lntup |grep rsync
tcp LISTEN 0 5 :::873 :::* users:(("rsync",1434,5))
tcp LISTEN 0 5 *:873 *:* users:(("rsync",1434,4))
[root@nfsnobody ~]# 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
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