Rsync 3.1.2 发布，此版本是个 bug 修复版本，包括了一个安全修复。
更新内容
安全修复
- Make sure that all transferred files use only path names from inside the
transfer.
BUG 修复
- Change the checksum seed order in the per-block checksums. This prevents
someone from trying to create checksum blocks that match in sum but not
content.
- Fixed a with the per-dir filter files (using -FF) that could trigger an
assert failure.
- Only skip set_modtime() on a transferred file if the time is exactly
right.
- Don't create an empty backup dir for a transferred file that doesn't
exist yet.
- Fixed a bug where --link-dest and --xattrs could cause rsync to exit if
a filename had a matching dir of the same name in the alt-dest area.
- Allow more than 32 group IDs per user in the daemon's gid=LIST config.
- Fix the logging of %b & %c via --log-file (daemon logging was already
correct, as was --out-format='%b/%c').
- Fix erroneous acceptance of --info=5 & --debug=5 (an empty flag name is
not valid).
改进：
- Added "(DRY RUN)" info to the --debug=exit output line.
- Use usleep() for our msleep() function if it is available.
- Added a few extra long-option names to rrsync script, which will make
BackupPC happier.
- Made configure choose to use linux xattrs on netbsd (rather than not
supporting xattrs).
- Added -wo (write-only) option to rrsync support script.
- Misc. manpage tweaks.
开发相关：
- Fixed a bug with the Makefile's use of INSTALL_STRIP.
- Improve a test in the suite that could get an erroneous timestamp error.
- Tweaks for newer versions of git in the packaging tools.
- Improved the m4 generation rules and some autoconf idioms.
rsync是类unix系统下的数据镜像备份工具，从软件的命名上就可以看出来了----remote sync。它的特性如下：
1、可以镜像保存整个目录树和文件系统。
2、可以很容易做到保持原来文件的权限、时间、软硬链接等等。
3、无须特殊权限即可安装。
4、优化的流程，文件传输效率高。
5、可以使用rcp、ssh等方式来传输文件，当然也可以通过直接的socket连接。
6、支持匿名传输。
软件详情：https://rsync.samba.org/
下载地址：https://download.samba.org/pub/rsync/src/rsync-3.1.2.tar.gz
来自:开源中国社区
