【发布时间】：2018-05-04 16:12:19
【问题描述】：
我对 rsync 感到疯狂，这给了我一个“连接被拒绝”的错误。这是我的问题： 我有两台服务器，用于存储数据，安装了 rsync，因为我需要两台服务器保持同步。这样，在一台服务器上的修改将导致另一台服务器上的相同修改，反之亦然。第一个节点 (sn1) 工作，而第二个 (sn2) 不工作。在细节。 - sn1 有 192.168.13.131 作为 ip 地址 - sn2 有 192.168.13.132 作为 ip 地址
如果我从 sn1 或 sn2 给rsync rsync://192.168.13.131，它工作正常；而如果我从 sn1 或 sn2 提供rsync rsync://182.168.13.132，则会收到此错误：
rsync: failed to connect to 192.168.13.132 (192.168.13.132): Connection refused (111)
rsync error: error in socket IO (code 10) at clientserver.c(125) [Receiver=3.1.2]
这里有一些关于 sn2 的信息。 /etc/rsyncd.conf
uid = swift
gid = swift
log file = /var/log/rsyncd.log
pid file = /var/run/rsyncd.pid
address = 192.168.130.132
[account]
max connections = 20
path = /srv/node/
read only = False
lock file = /var/lock/account.lock
[container]
max connections = 20
path = /srv/node/
read only = False
lock file = /var/lock/container.lock
[object]
max connections = 20
path = /srv/node/
read only = False
lock file = /var/lock/object.lock
和/etc/default/rsync
# defaults file for rsync daemon mode
#
# This file is only used for init.d based systems!
# If this system uses systemd, you can specify options etc. for rsync
# in daemon mode by copying /lib/systemd/system/rsync.service to
# /etc/systemd/system/rsync.service and modifying the copy; add required
# options to the ExecStart line.
# start rsync in daemon mode from init.d script?
# only allowed values are "true", "false", and "inetd"
# Use "inetd" if you want to start the rsyncd from inetd,
# all this does is prevent the init.d script from printing a message
# about not starting rsyncd (you still need to modify inetd's config yourself).
RSYNC_ENABLE=true
# which file should be used as the configuration file for rsync.
# This file is used instead of the default /etc/rsyncd.conf
# Warning: This option has no effect if the daemon is accessed
# using a remote shell. When using a different file for
# rsync you might want to symlink /etc/rsyncd.conf to
# that file.
# RSYNC_CONFIG_FILE=
# what extra options to give rsync --daemon?
# that excludes the --daemon; that's always done in the init.d script
# Possibilities are:
# --address=123.45.67.89 (bind to a specific IP address)
# --port=8730 (bind to specified port; default 873)
RSYNC_OPTS=''
# run rsyncd at a nice level?
# the rsync daemon can impact performance due to much I/O and CPU usage,
# so you may want to run it at a nicer priority than the default priority.
# Allowed values are 0 - 19 inclusive; 10 is a reasonable value.
RSYNC_NICE=''
# run rsyncd with ionice?
# "ionice" does for IO load what "nice" does for CPU load.
# As rsync is often used for backups which aren't all that time-critical,
# reducing the rsync IO priority will benefit the rest of the system.
# See the manpage for ionice for allowed options.
# -c3 is recommended, this will run rsync IO at "idle" priority. Uncomment
# the next line to activate this.
# RSYNC_IONICE='-c3'
# Don't forget to create an appropriate config file,
# else the daemon will not start.
现在是一些日志。 /var/log/rsyncd.log
2018/05/04 15:10:16 [889] rsyncd version 3.1.2 starting, listening on port 873
2018/05/04 15:10:16 [889] bind() failed: Cannot assign requested address (address-family 2)
2018/05/04 15:10:16 [889] unable to bind any inbound sockets on port 873
2018/05/04 15:10:16 [889] rsync error: error in socket IO (code 10) at socket.c(555) [Receiver=3.1.2]
sn2 上ps aux | grep rsync 命令的输出：
sn2 1555 0.0 0.1 13136 1060 pts/0 S+ 15:46 0:00 grep --color=auto rsync
sn1 上ps aux | grep rsync 命令的输出：
sn1 12875 0.0 0.1 13136 1012 pts/0 S+ 15:48 0:00 grep --color=auto rsync
root 21281 0.0 0.2 12960 2800 ? Ss 13:31 0:00 /usr/bin/rsync --daemon --no-detach
这是我看到的两个节点之间的主要区别。
sn1 上命令sudo systemctl status rsync 的输出：
rsync.service - fast remote file copy program daemon
Loaded: loaded (/lib/systemd/system/rsync.service; enabled; vendor preset: enabled)
Active: active (running) since Fri 2018-05-04 13:31:10 UTC; 2h 19min ago
Main PID: 21281 (rsync)
Tasks: 1 (limit: 1113)
CGroup: /system.slice/rsync.service
└─21281 /usr/bin/rsync --daemon --no-detach
May 04 13:31:10 sn1 systemd[1]: Started fast remote file copy program daemon.
sn2中相同命令的输出：
rsync.service - fast remote file copy program daemon
Loaded: loaded (/lib/systemd/system/rsync.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Fri 2018-05-04 15:10:16 UTC; 41min ago
Process: 889 ExecStart=/usr/bin/rsync --daemon --no-detach (code=exited, status=10)
Main PID: 889 (code=exited, status=10)
May 04 15:10:15 sn2 systemd[1]: Started fast remote file copy program daemon.
May 04 15:10:16 sn2 systemd[1]: rsync.service: Main process exited, code=exited, status=10/n/a
May 04 15:10:16 sn2 systemd[1]: rsync.service: Failed with result 'exit-code'.
sn1 上命令sudo netstat -lptu | grep rsync 的输出：
tcp 0 0 sn1:rsync 0.0.0.0:* LISTEN 21281/rsync
在 sn2 中它什么也不返回...
sn2 /etc/hosts 终于包含了
127.0.0.1 localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
#ADDED BY ME
#10.0.2.15 sn2
192.168.13.130 proxy-server
192.168.13.131 sn1
192.168.13.132 sn2
#192.168.13.133 sn3
#192.168.13.134 sn4
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
还有 sn1：
127.0.0.1 localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
#ADDED BY ME
#10.0.2.15 sn1
192.168.13.130 proxy-server
192.168.13.131 sn1
192.168.13.132 sn2
#192.168.13.133 sn3
#192.168.13.134 sn4
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
我在虚拟机上的每个服务器节点上运行 ubuntu 18.04。 你能帮我弄清楚发生了什么吗？不幸的是，我必须使用 rsync，因为我正在使用 OpenStack Swift，所以不允许更改 :)
【问题讨论】：
标签： rsync openstack-swift connection-refused