| [1] | Install xinetd on HostA and HostB. |
| [root@lan ~]#
yum -y install xinetd
[root@lan ~]# vi /etc/xinetd.d/rsync
# default: off # description: The rsync server is a good addition to an ftp server, as it \ # allows crc checksumming etc. service rsync { disable
=
no
# change
socket_type
= stream
wait
= no
user
= root
server
= /usr/bin/rsync
server_args
= --daemon
log_on_failure
+= USERID
} [root@lan ~]# /etc/rc.d/init.d/xinetd start
Starting xinetd: [ OK ]
[root@lan ~]# chkconfig xinetd on
[root@lan ~]# chown nobody. /home/backup
[root@lan ~]# vi /etc/rsyncd.conf
# any name you like
[site] # destination directory
path = /home/backup # IP address you allow that connect to this server
hosts allow = 192.168.0.0/24 # allow update
read only = false |
| [2] | Install and configure Lsync on HostA. Get latest lsync from here when you run wget. |
|
# install some requied packages
[root@www ~]# yum -y install libxml2-devel zlib-devel readline-devel
[root@www ~]# wget http://lsyncd.googlecode.com/files/lsyncd-1.26.tar.gz
[root@www ~]# tar zxvf lsyncd-1.26.tar.gz
[root@www ~]# cd lsyncd-1.26
[root@www lsyncd-1.26]# ./configure
[root@www lsyncd-1.26]# make
[root@www lsyncd-1.26]# make install
[root@www lsyncd-1.26]# cp lsyncd.conf.xml /etc/lsyncd.conf.xml
[root@www lsyncd-1.26]# [root@www ~]# rm -rf lsyncd-1.26
[root@www ~]# vi /etc/lsyncd.conf.xml
# line 61: change to mirrored directory
<source path=" /var/www/html
"/># line 62: destination directory which name is the one in rsyncd.conf on the section [1]
<target path=" 192.168.0.20::site/
"/> [root@www ~]# vi /etc/rc.d/init.d/lsyncd
# create init script
# it's an example
#!/bin/bash
# # lsyncd: Starts the lsync Daemon # # chkconfig: 345 99 90 # description: Lsyncd uses rsync to synchronize local directories with a remote
# machine running rsyncd. Lsyncd watches multiple directories
# trees through inotify. The first step after adding the watches
# is to, rsync all directories with the remote host, and then sync
# single file buy collecting the inotify events.
# processname: lsyncd . /etc/rc.d/init.d/functions config="/etc/lsyncd.conf.xml" lsyncd="/usr/local/bin/lsyncd" lockfile="/var/lock/subsys/lsyncd" prog="lsyncd" RETVAL=0 start() { if [ -f $lockfile ]; then
echo -n $"$prog is already running: "
echo
else
echo -n $"Starting $prog: "
daemon $lsyncd --conf=$config
RETVAL=$?
echo
[ $RETVAL = 0 ] && touch $lockfile
return $RETVAL
fi
} stop() { echo -n $"Stopping $prog: "
killproc $lsyncd
RETVAL=$?
echo
[ $RETVAL = 0 ] && rm -f $lockfile
return $RETVAL
} case "$1" in start)
start
;;
stop)
stop
;;
restart)
stop
start
;;
status)
status $lsyncd
;;
*)
echo "Usage: lsyncd {start|stop|restart|status}"
exit 1
esac exit $? [root@www ~]# vi /etc/logrotate.d/lsyncd
# set logrotation
/var/log/lsyncd {
daily copytruncate compress notifempty missingok postrotate /etc/rc.d/init.d/lsyncd restart 2>&1 > /dev/null || true endscript } [root@www ~]# chmod 755 /etc/rc.d/init.d/lsyncd
[root@www ~]# /etc/rc.d/init.d/lsyncd start
Starting lsyncd: [ OK ]
[root@www ~]# chkconfig --add lsyncd
[root@www ~]# chkconfig lsyncd on
|
| [3] | Make sure on HostB that files are copied normally. |