C端
"@ERROR: setgid failedrsync error: error starting client-server protocol (code 5) at main.c(1648) [sender=3.1.2]"、
Server 端
2020/09/07 10:45:51 [873] name lookup failed for 192.168.*.*: Name or service not known
2020/09/07 10:45:51 [873] connect from UNKNOWN (192.168.*.*)
2020/09/07 10:45:51 [873] rsync: setgid 0 failed: Invalid argument (22)
解决方案
删除rsync服务端配置文件：uid=0 gid=0。重启服务，就可以了