Rsync服務常見問題彙總
==================================================================
1 客戶端的錯誤現象：No route to host
rsync服務端開啟的iptables防火牆
[root@nfs01 tmp]# 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)
rsync error: error in socket IO (code 10) at clientserver.c(124) [sender=3.0.6]
異常問題解決：
關閉rsync服務端的防火牆服務（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.
==================================================================
2 ERROR: The remote path must start with a module name not a /
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 rsync_backup@172.16.1.41::/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]
異常問題解決：
rsync命令語法理解錯誤，::/backup是錯誤的語法，應該為::backup(rsync模組)
==================================================================
3 @ERROR: auth failed on module backup
3. @ERROR: auth failed on module oldboy
客戶端的錯誤現象：
[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]
異常問題解決：
1. 密碼真的輸入錯誤，使用者名稱真的錯誤
2. secrets file = /etc/rsync.password指定的密碼檔案和實際密碼檔名稱不一致
3. /etc/rsync.password檔案許可權不是600
4. rsync_backup:123456密碼配置檔案後面注意不要有空格
5. rsync客戶端密碼檔案中只輸入密碼資訊即可，不要輸入虛擬認證使用者名稱稱
==================================================================
4 @ERROR: Unknown module `backup`
4. Unknown module `backup`
[root@nfs01 tmp]# rsync -avz /etc/hosts rsync_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]
異常問題解決：
1、 /etc/rsyncd.conf配置檔案模組名稱書寫錯誤
2、配置檔案中網段限制不對
==================================================================
5 Permission denied
[root@nfs01 tmp]# rsync -avz /etc/hosts rsync_backup@172.16.1.41::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]
異常問題解決：
1. 共享目錄的屬主和屬組不正確，不是rsync
2. 共享目錄的許可權不正確，不是755
==================================================================
6 chdir failed
[root@nfs01 tmp]# rsync -avz /etc/hosts rsync_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]
異常問題解決：
1. 備份儲存目錄沒有建立
2. 建立的備份儲存目錄和配置檔案定義不一致
[root@backup backup]# /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 retrieving current directory: getcwd: cannot access parent directories: No such file or directory
[ OK ]
說明：如果沒有備份儲存目錄，xinetd服務都不能正確啟動
==================================================================
7 invalid uid rsync
[root@nfs01 tmp]# rsync -avz /etc/hosts rsync_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]
異常問題解決：
rsync服務對應rsync虛擬使用者不存在了
==================================================================
8 客戶端已經配置了密碼檔案，但免祕鑰登入方式，依舊需要輸入密碼
password file must not be other-accessible
[root@nfs01 tmp]# rsync -avz /etc/hosts rsync_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
異常問題解決：
rsync客戶端的祕鑰檔案也必須是600許可權
==================================================================
9 rsync客戶端連線慢問題
錯誤日誌輸出
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
正確日誌輸出
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 nfs02 (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
異常問題解決：
檢視日誌進行分析
==================================================================
10 rsync服務沒有正確啟動Connection refused (111)
[root@oldboy-muban ~]# rsync -avz /etc/hosts rsync_backup@172.16.1.41::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]
解決 rsync服務沒開啟
[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/hosts rsync_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
==================================================================
11 port 22: Connection refused
環境：本地伺服器叢集內部傳輸利用遠端ssh 報錯
利用（telnet 172.16.1.31 22） 排查服務監聽狀態後採取的解決方法
[root@oldboy-muban ~]# rsync /etc/hosts 172.16.1.31:/tmp
ssh: connect to host 172.16.1.31 port 22: Connection refused
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]
排錯思路：
[root@oldboy-muban ~]# ping 172.16.1.31
PING 172.16.1.31 (172.16.1.31) 56(84) bytes of data.
64 bytes from 172.16.1.31: icmp_seq=1 ttl=64 time=0.628 ms
64 bytes from 172.16.1.31: icmp_seq=2 ttl=64 time=0.393 ms
64 bytes from 172.16.1.31: icmp_seq=3 ttl=64 time=1.06 ms
64 bytes from 172.16.1.31: icmp_seq=4 ttl=64 time=0.745 ms
[root@oldboy-muban ~]# traceroute 172.16.1.31
traceroute to 172.16.1.31 (172.16.1.31), 30 hops max, 60 byte packets
1 nfs01 (172.16.1.31) 0.597 ms 0.189 ms 0.965 ms
/etc/init.d/iptables status
iptables: Firewall is not running.
[root@backup ~]#
[root@backup ~]# netstat -lntup|grep 22
p 0 0 10.0.0.31:22 0.0.0.0:* LISTEN 1187/sshd
故障原因：無法連線
telnet 172.16.1.31 22
解決方法：
[root@oldboy-backup-41]# vim /etc/ssh/sshd_config
#Port 22
#AddressFamily any
#ListenAddress 10.0.0.31 改為 0.0.0.0
#ListenAddress ::
總結：內網傳輸通過SSH pro 22 表明22埠連結不上
==================================================================
12 –passwd-file=/etc/rsync.passwd: unknown option 沒有正確輸入password檔名
報錯：–passwd-file=/etc/rsync.passwd: unknown option
錯誤案例 本地rsync.password 檔案要保持一致缺少字母都會報錯
echo “123456”>>/etc/rsync.passwd
[root@nfs01 ~]# chmod 600 /etc/rsync.passwd
[root@nfs01 ~]# ll /etc/rsync.passwd
-rw——- 1 root root 7 Mar 9 13:47 /etc/rsync.passwd
[root@nfs01 ~]# rsync -az -P /root/ rsync_backup@172.16.1.41::backup –passwd-file=/etc/rsync.passwd
rsync: –passwd-file=/etc/rsync.passwd: unknown option
rsync error: syntax or usage error (code 1) at main.c(1422) [client=3.0.6]
正確做法：
[root@nfs01 ~]# echo “123456”>>/etc/rsync.password
[root@nfs01 ~]# chmod 600 /etc/rsync.password
[root@nfs01 ~]# ll /etc/rsync.password
-rw——- 1 root root 7 Mar 9 13:49 /etc/rsync.password
rsync -az -P /server/files/secure-20161219 rsync_backup@172.16.1.41::backup –password-file=/etc/rsync.password
sending incremental file list
secure-20161219
51053780 100% 14.31MB/s 0:00:03 (xfer#1, to-check=0/1)
rsync: mkstemp “.secure-20161219.lcnuWA” (in backup) failed: Permission denied (13)
sent 2210982 bytes received 27 bytes 491335.33 bytes/sec
total size is 51053780 speedup is 23.09
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1039) [sender=3.0.6]
[root@backup ~]# ls /backup/
100.log cc.txt optimize-init_sys.sh
anaconda-ks.cfg
1）可能是服務沒有開啟
2）iptables SELinux
3）本次遇見sshd傳輸受限 限制了傳輸的ip（安全）
==================================================================
Rsync服務端排錯思路
m 檢視rsync服務配置檔案路徑是否正確 /etc/rsyncd.conf
m 檢視配置檔案例的host allow，host deny，允許的ip網段是否是允許客戶端訪問的ip網段
m 檢視配置檔案中path引數裡的路徑是否存在，許可權是否正確（正常應為配置檔案中的UUID引數對應的屬主和組）
m 檢視rsync服務是否啟動，埠是否存在 ps -ef netstat -lntup
m 檢視iptables防火牆和SELinux是否開啟允許rsync服務通過，也可以關閉
m 檢視服務端rsync配置檔案裡的密碼許可權是否為600 密碼檔案格式是否正確，正確格式（使用者名稱：密碼）檔案路徑和配置檔案裡的secrect files 引數對應
m 如果是推送資料，要檢視，配置rsyncd.conf 檔案中使用者是否對模組下目錄有可讀的許可權
==================================================================
客戶端排錯思路
m 檢視客戶端rsync配置的密碼檔案是否為600的許可權，密碼檔案格式是否正確，注意：僅需要有密碼，並且和服務端的密碼一致
m 用telnet連結rsync伺服器ip地址873埠，檢視服務是否啟動（可測試服務端防火牆是否阻擋telnet10.0.0.100 873）
m 客戶端執行命令是 rsync -avzP rsync_backup@10.0.0.100::backup/test/test/ –password-file=/etc/rsync.password
m 此命令要記清楚尤其10.0.0.100::backup/test/處的雙引號及隨後的backup為模組名稱
==================================================================
來源於 https://www.cnblogs.com/wang-xd/p/6551402.html