Fernando Vásquez is an electronics engineer and software developer currently based in the world. He occasionally blogs about Python and Android programming.
Rsync Tutorial
Published on 23 Jun 2020
rsync
(Network efficient file copier: Use the –dry-run option for testing)
- Only get diffs. Do multiple times for troublesome downloads
rsync -P rsync://rsync.server.com/path/to/file file
- Locally copy with rate limit. It’s like nice for I/O
rsync --bwlimit=1000 fromfile tofile
# Mirror web site (using compression and encryption)
rsync -az -e ssh --delete ~/public_html/ remote.com:'~/public_html'
# Synchronize current directory with remote one
rsync -auz -e ssh remote:/dir/ . && rsync -auz -e ssh . remote:/dir/
### config ###
yum -y install rsync xinetd # Make sure xinetd and rsync is available, if not type
chkconfig --add xinetd # Add xinetd service to system
chkconfig --list xinetd # Make sure xinetd running on init 3 and 5
vi /etc/xinetd.d/rsync # Enable rsync: change disable = yes into disable = no
vi /etc/rsyncd.secrets # Create username and password for rsync client to use: adminname:hispassword
vi /etc/rsyncd.conf # Create configuration and shares for rsync daemon
chown root.root /etc/rsyncd.* # Secure /etc/rsyncd.*
chmod 600 /etc/rsyncd.*
service xinetd restart # Restart xinetd
chkconfig --list # Make sure rsync now running
# Perhaps you also want to enable port 873 tcp and udp on your firewall
/usr/local/bin/rsync --no-detach --daemon --config /etc/rsyncd.conf &
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