How does Linux operations learn to do rsync troubleshooting?

Rsync is an open source, fast and versatile tool that enables simultaneous, full-scale, incremental, local or remote data backup, and is one of the essential skills of operations personnel. So how does the OPS debug the rsync when the OPS deployment architecture is deployed?

1 The necessary thought of the wrong line

1) Deployment Process step proficiency

2) Rsync principle Understanding

3) Learn to read the log, rsync command line output, log file/var/log/rsyncd.log

2 Troubleshooting Ideas

2.1 Rsync service-Side troubleshooting ideas

1) Check that the Rsync service profile path is correct and the correct default path is:/etc/rsyncd.conf

2) View the configuration file in host Allow,host deny, allow IP network segment to allow client access to IP segment

3) Check the path parameter in the configuration file for the existence of the correct permissions (normally the owner and group corresponding to the UID parameter in the configuration file)

4) Check to see if the Rsync service is started and see the command: Ps-ef|grep rsync. Whether the port will exist Netstat-ntlpu|grep 873

5) Check whether the Iptables firewall and SELinux are enabled to allow the Rsync service to pass, or consider shutting down

6) Check whether the password file for rsync configuration on the server is 600 and the correct format, the correct format user name: password, file path and Secrect file in the configuration files to be the same

7) If it is to push the data, it is necessary to look at the configuration in the rsyncd.conf file whether the user has read and write permissions to the directory under the module

2.2 Rsync Client Troubleshooting Ideas

1) Check whether the password file of the client rsync configuration is 600 permissions, the password file format is correct, note: only need to have the password, and the service side password consistent

2) connect the rsync server IP address 873 port with Telnet to see if the service is started (can test the server firewall is blocked). Telnet 172.16.1.41 873

3) When the client executes the command RSYNC-AVZP [email protected]::backup//test/--password-file=/etc/rsync.password

The details of this command should be clearly remembered, especially the double colon at 172.16.1.41::oldboy/test/and the subsequent Oldboy as the module name

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How does Linux operations learn to do rsync troubleshooting?