CentOS rsync Configuration

Environment: CentOS 5.2 (two units)

Rsync Server ip:192.168.1.114

Client ip:192.168.1.115

1. Install rsync and manage rsync via xinetd

Yum Install rsync xinetd

2. Modify the/etc/xinetd.d/rsync file so that it starts with xinetd

Vim/etc/xinetd.d/rsync

Modify Disable = Yes to disable = no

3. Firewall settings (rsync default port 837)

-A rh-firewall-1-input-p tcp-m state--state new-m TCP--dport 873-j ACCEPT

Service iptables Restart

4. Create the files required by rsync

Mkdir/etc/rsyncd

touch/etc/rsyncd/rsyncd.conf (master configuration file)

Touch/etc/rsyncd/secrets (verify user and password storage location)

TOUCH/ETC/RSYNCD/RSYNCD.MOTD (server description information)

ln/etc/rsyncd/rsyncd.conf/etc/rsyncd.conf (link creation)

chmod 600/etc/rsyncd.secrets (set permissions for this file) is required

Chown Root:root/etc/rsyncd.secrets (set the owning user and group to the file)

5. Modify the master configuration file

Vi/etc/rsyncd/rsyncd.conf

# Required by THE/ETC/INIT.D/RSYNCD script

PID file =/var/run/rsyncd.pid (tells the process to write to the file)

Port = 873 (Specify service port)

Address = 192.168.1.114 (set server IP address)

UID = root (server transfers files with root permission)

GID = root

Use chroot = yes

Read Only = yes (read-only, do not allow the client to upload files to the server)

#limit access to private LANs

Hosts allow=192.168.1.0/255.255.255.0 (restricts access to the service's network segment)

Hosts deny=*

Max connections = 5 (maximum number of connections)

MOTD file =/ETC/RSYNCD/RSYNCD.MOTD (server information definition points to the file, the file can write server information)

This would give you a separate log file

#log file =/var/log/rsync.log

#This would log every file transferred-up to 85,000+ per user, per sync

#transfer logging = yes

Log format =%t%a%m%f%b (log file format)

Syslog facility = Local3

Timeout = 300 (time-out)

[Backup] (link name)

Path =/Home (the path to which the link name points)

List=yes (the directory on the server where the data is synchronized is listed on the server module)

Ignore errors (ignoring IO errors)

Auth users = CS (authenticated user, my user is CS)

Secrets file =/etc/rsyncd/rsyncd.secrets (point to verify user holds files)

6. Modifying rsyncd.secrets and RSYNCD.MOTD files

Vi/etc/rsyncd/rsyncd.secrets

cs:123456 (CS exists for the system user, but the password is best set to be different from the system password)

Vi/etc/rsyncd/rsyncd.motd

++++++++++++++++++++++++++++++++

Welcome

++++++++++++++++++++++++++++++++

7. Restart the service

Service xinetd Restart

Client synchronization test (client to install rsync)

Rsync–avzp cs@192.168.1.114::backup/var/local

It means to log on to the server with CS user and save the directory data specified by backup to my local/var/local

Testing is not smooth sailing, encountered some problems, you can see the reference link.

Client fully synchronizes server touch Rsync.password (creates a file that holds the password) chmod rsync.password echo "123456" > Rsync.password (write password) Rsyn C-avzp --delete --password-file=rsync.password cs@192.168.1.114::backup/var/local