Atlas+keepalive+LVS+mysql主从
web1 192.168.1.137 sh keninit.sh安装webvip 192.168.1.254 此ip是虚拟ip
web2 192.168.1.138 sh keninit.sh安装web
主mysqlA 192.168.1.140 主
从mysqlB 192.168.1.141 从
从mysqlC 192.168.1.145 从
Atlas1 192.168.1.146 Atlas+keepalive+lvs
Atlas2 192.168.1.144 Atlas+keepalive+lvs
实验环境：六台机器全部是centos6.5的环境
一、以下三台数据库机器140mysqlA，141mysqlB和145mysqlC操作一模一样
yum install -ygcc* gcc-c++* autoconf* automake* zlib* libxml* ncurses-devel* libgcrypt* libtool*
wget http://www.cmake.org/files/v2.8/cmake-2.8.4.tar.gz --no-check-certificate
tar -zxvfcmake-2.8.4.tar.gz
cdcmake-2.8.4.tar.gz
./configure&& make && make install
mkdir /opt/mysql
mkdir /opt/mysql/data
groupadd mysql
useradd -g mysql mysql
chown mysql:mysql -R /opt/mysql/data
wget http://downloads.mysql.com/archives/get/file/mysql-5.5.13.tar.gz
tar -zxvfmysql-5.5.13.tar.gz
cdmysql-5.5.13.tar.gz
cmake -DCMAKE_INSTALL_PREFIX=/opt/mysql \
-DSYSCONFDIR=/opt/mysql/etc \
-DMYSQL_DATADIR=/opt/mysql/data \
-DMYSQL_TCP_PORT=3306 \
-DMYSQL_UNIX_ADDR=/tmp/mysqld.sock \
-DMYSQL_USER=mysql \
-DEXTRA_CHARSETS=all \
-DWITH_READLINE=1 \
-DWITH_SSL=system \
-DWITH_EMBEDDED_SERVER=1 \
-DENABLED_LOCAL_INFILE=1 \
-DWITH_INNOBASE_STORAGE_ENGINE=1
make && make install
mkdir /opt/mysql/log
mkdir /opt/mysql/etc
cp support-files/my-medium.cnf /opt/mysql/etc/my.cnf
chmod 755 scripts/mysql_install_db
scripts/mysql_install_db --user=mysql --basedir=/opt/mysql/ --datadir=/opt/mysql/data/
mkdir /opt/mysql/init.d
cp support-files/mysql.server /opt/mysql/init.d/mysql
chmod +x /opt/mysql/init.d/mysql
/opt/mysql/init.d/mysql start
find / -name mysqld.sock
/tmp/mysqld.sock
/opt/mysql/bin/mysql -S /tmp/mysqld.sock -P 3306
/opt/mysql/bin/mysqladmin -u root password '123456' #设置mysql数据库密码
/opt/mysql/bin/mysql -uroot -p'123456' #登陆mysql数据库
# grep -Ev "^#|^$" /opt/mysql/etc/my.cnf
port = 3306
socket = /tmp/mysqld.sock
port = 3306
socket = /tmp/mysqld.sock
basedir = /opt/mysql/ ############报错的解决方法
datadir = /opt/mysql/data/ ###########报错的解决方法
skip-external-locking
key_buffer_size = 16M
max_allowed_packet = 1M
table_open_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
log-bin=mysql-bin
binlog_format=mixed
server-id = 1
quick
max_allowed_packet = 16M
no-auto-rehash
key_buffer_size = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M
interactive-timeout
1、在192.168.1.140主mysqlA里
# /opt/mysql/bin/mysql -uroot -p'123456'
mysql>GRANT REPLICATION SLAVE ON *.* to 'rep1'@'192.168.1.141' identified by "123456"; #给mysqlB授权
mysql>GRANT REPLICATION SLAVE ON *.* to 'rep1'@'192.168.1.145' identified by "123456";
mysql>grant all on *.* to per1@'192.168.1.146' identified by '123456'; #所有主从都要给Atlas数据库授权，不然提示down的状态
mysql> flushprivileges;
mysql> show master status;
+------------------+----------+--------------+------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.000003 | 699 | | |
+------------------+----------+--------------+------------------+
##记录下 FILE 及 Position 的值，在后面进行从服务器操作的时候需要用到。
2、在192.168.1.141/145mysqlB/C从里
# /opt/mysql/bin/mysql -uroot -p'123456'
mysql>grant all on *.* to per1@'192.168.1.146' identified by '123456';#所有主从都要给Atlas数据库授权，不然提示down的状态
mysql> flushprivileges;
# grepserver-id /opt/mysql/etc/my.cnf
server-id = 10 ###145的改为server-id =9
#server-id = 2
# /opt/mysql/init.d/mysql restart
Shutting down MySQL. [确定]
Starting MySQL.. [确定]
# /opt/mysql/bin/mysql -uroot -p'123456'
mysql> change master to master_host="192.168.1.140", master_user="rep1", master_password="123456", master_log_file="mysql-bin.000003", master_log_pos=699;
mysql>start slave;
Query OK, 0 rows affected (0.01 sec) ####注意防火墙和selinux都关掉或者开放相应的端口
mysql> show slave status\G
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.1.140
Master_User: rep1
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000005
Read_Master_Log_Pos: 107
Relay_Log_File: localhost-relay-bin.000005
Relay_Log_Pos: 253
Relay_Master_Log_File: mysql-bin.000005
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 107
Relay_Log_Space: 413
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
1 row in set (0.00 sec)
3、验证：在主192.168.1.140里
#/opt/mysql/bin/mysql -uroot -p'123456'
mysql>create database mydatabases;
Query OK, 1 row affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| first_db |
| mydatabases |
| mysql |
| performance_schema |
| test |
+--------------------+
6 rows in set (0.00 sec)
在从数据库里192.168.1.141里查看
#/opt/mysql/bin/mysql -uroot -p'123456'
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| first_db |
| mydatabases |
| mysql |
| performance_schema |
| test |
+--------------------+
6 rows in set (0.00 sec)
OK，至此主从同步完成。
4、以下是常见的主从错误
1.网络不通
2.密码不对
3.pos不正确
4.ID问题
5.防火墙开端口和selinux关掉
补充：
双方的机器防火墙是否策略有限制。
ID的问题，在安装完mysql数据库的时候默认他们的server-id=1 但是在做主从同步的时候需要将ID 号码设置不一样才行。
二、安装Atlas
1、安装atlas
yum install -y pkg-config libevent*glib lua
wget ftp://ftp.gnu.org/gnu/autoconf/autoconf-2.69.tar.gz && tar zxvfautoconf-2.69.tar.gz && cd autoconf-2.69 &&./configure && make && make install
wget http://ftp.gnu.org/gnu/automake/automake-1.13.2.tar.gz&&tar zxvfautomake-1.13.2.tar.gz&& cd automake-1.13.2 &&./configure && make && make install
yum install -y libffi-devel
wget http://ftp.gnome.org/pub/gnome/sources/glib/2.36/glib-2.36.3.tar.xz && tar xvf glib-2.36.3.tar.xz && cd glib-2.36.3 && ./configure
export PKG_CONFIG_PATH=/usr/bin/pkg-config
make && make install
将Atlas包下载到本地，再从本地上传到服务器里
wget--no-check-certificatehttps://github.com/Qihoo360/Atlas/releases/download/2.2.1/Atlas-2.2.1.el6.x86_64.rpm
2、修改test.cnf配置文件
vim/usr/local/mysql-proxy/conf/test.cnf
# /usr/local/mysql-proxy/bin/encrypt 123456
/iZxz+0GRoA= #生成密钥
# cat test.cnf
#带#号的为非必需的配置项目
#管理接口的用户名
admin-username = user
#管理接口的密码
admin-password = pwd
#实现管理接口的Lua脚本所在路径
admin-lua-script = /usr/local/mysql-proxy/lib/mysql-proxy/lua/admin.lua
#Atlas后端连接的MySQL主库的IP和端口，可设置多项，用逗号分隔
proxy-backend-addresses = 192.168.1.140:3306
#Atlas后端连接的MySQL从库的IP和端口，@后面的数字代表权重，用来作负载均衡，若省略则默认为1，可设置多项，用逗号分隔
proxy-read-only-backend-addresses = 192.168.1.141:3306@1,192.168.1.145:3306@1
#用户名与其对应的加密过的MySQL密码，密码使用PREFIX/bin目录下的加密程序encrypt加密
pwds = root:/iZxz+0GRoA= ##和上面的密钥对应
#设置Atlas的运行方式，设为true时为守护进程方式，设为false时为前台方式，一般开发调试时设为false，线上运行时设为true
daemon = true
#设置Atlas的运行方式，设为true时Atlas会启动两个进程，一个为monitor，一个为worker，monitor在worker意外退出后会自动将其重启，设为false时只有worker，没有monitor，一般开发调试时设为false，线上运行时设为true
keepalive = true
#工作线程数，推荐设置与系统的CPU核数相等
event-threads = 4
#日志级别，分为message、warning、critical、error、debug五个级别
log-level = message
#日志存放的路径
log-path = /usr/local/mysql-proxy/log #日志查找的地方
#SQL日志的开关，可设置为OFF、ON、REALTIME，OFF代表不记录SQL日志，ON代表记录SQL日志，REALTIME代表记录SQL日志且实时写入磁盘，默认为OFF
#sql-log = OFF
#实例名称，用于同一台机器上多个Atlas实例间的区分
instance = test
#Atlas监听的工作接口IP和端口
proxy-address = 0.0.0.0:1234
#Atlas监听的管理接口IP和端口
admin-address = 0.0.0.0:2345
#分表设置，此例中person为库名，mt为表名，id为分表字段，3为子表数量，可设置多项，以逗号分隔，若不分表则不需要设置该项
#tables = person.mt.id.3
#默认字符集，若不设置该项，则默认字符集为latin1
charset = utf8
#允许连接Atlas的客户端的IP，可以是精确IP，也可以是IP段，以逗号分隔，若不设置该项则允许所有IP连接，否则只允许列表中的IP连接
#client-ips = 127.0.0.1, 192.168.1
#Atlas前面挂接的LVS的物理网卡的IP(注意不是虚IP)，若有LVS且设置了client-ips则此项必须设置，否则可以不设置
#lvs-ips = 192.168.1.1
3、启动Atlas
/usr/local/mysql-proxy/bin/mysql-proxyd test start
4、查看Atlas进程
ps aux | grep mysql-proxy | grep -v grep
5、在mysqlA、B、C主和从数据库里查看Atlas
/opt/mysql/bin/mysql -uuser -ppwd-h192.168.1.144 -P2345 #查看Atlas2
mysql> select * from backends;
+-------------+--------------------+-------+------+
| backend_ndx | address | state | type |
+-------------+--------------------+-------+------+
| 1 | 192.168.1.140:3306 | up | rw |
| 2 | 192.168.1.141:3306 | up | ro |
| 3 | 192.168.1.145:3306 | up | ro |
+-------------+--------------------+-------+------+
3 rows in set (0.00 sec)
/opt/mysql/bin/mysql -uuser -ppwd-h192.168.1.146 -P2345 #查看Atlas1
mysql> select * from backends;
+-------------+--------------------+-------+------+
| backend_ndx | address | state | type |
+-------------+--------------------+-------+------+
| 1 | 192.168.1.140:3306 | up | rw |
| 2 | 192.168.1.141:3306 | up | ro |
| 3 | 192.168.1.145:3306 | up | ro |
+-------------+--------------------+-------+------+
3 rows in set (0.00 sec)
mysql> remove backend3; ###下线数据库
Empty set (0.00 sec)
mysql> select * from backends;
+-------------+--------------------+-------+------+
| backend_ndx | address | state | type |
+-------------+--------------------+-------+------+
| 1 | 192.168.1.140:3306 | up | rw |
| 2 | 192.168.1.141:3306 | up | ro |
+-------------+--------------------+-------+------+
2 rows in set (0.00 sec)
mysql> add slave 192.168.1.145:3306 ###上线数据库
-> ;
Empty set (0.00 sec)
mysql> select * from backends;
+-------------+--------------------+-------+------+
| backend_ndx | address | state | type |
+-------------+--------------------+-------+------+
| 1 | 192.168.1.140:3306 | up | rw |
| 2 | 192.168.1.141:3306 | up | ro |
| 3 | 192.168.1.145:3306 | up | ro |
+-------------+--------------------+-------+------+
3 rows in set (0.00 sec)
mysql> set online 3;
+-------------+--------------------+---------+------+
| backend_ndx | address | state | type |
+-------------+--------------------+---------+------+
| 3 | 192.168.1.145:3306 | unknown | ro |
+-------------+--------------------+---------+------+
1 row in set (0.00 sec)
mysql> select * from backends;
+-------------+--------------------+-------+------+
| backend_ndx | address | state | type |
+-------------+--------------------+-------+------+
| 1 | 192.168.1.140:3306 | up | rw |
| 2 | 192.168.1.141:3306 | up | ro |
| 3 | 192.168.1.145:3306 | up | ro |
+-------------+--------------------+-------+------+
3 rows in set (0.00 sec)
6、在192.168.1.145从mysqlc机器上
#模拟故障
# netstat -utnalp | grep mysql
tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 4284/mysqld
tcp 0 0 192.168.1.145:54292 192.168.1.140:3306 ESTABLISHED 4284/mysqld
# kill 4284
# netstat -utnalp | grep mysql
# ps aux | grep mysql
root 46910.00.1 103256 856 pts/0 S+ 15:50 0:00 grep mysql
# /opt/mysql/bin/mysql -uuser -ppwd-h192.168.1.144 -P2345
mysql> select * from backends;
+-------------+--------------------+-------+------+
| backend_ndx | address | state | type |
+-------------+--------------------+-------+------+
| 1 | 192.168.1.140:3306 | up | rw |
| 2 | 192.168.1.141:3306 | up | ro |
| 3 | 192.168.1.145:3306 | down| ro |
###可以看到192.168.1.145已经down了，这个要把Atlas的配置文件
vim/usr/local/mysql-proxy/conf/test.cnf里面的从数据库的优先级调成一样时看的更快。
#proxy-read-only-backend-addresses = 192.168.1.141:3306@1,192.168.1.145:3306@1
其中@1为优先级
将192.168.1.145数据库启动
# /opt/mysql/init.d/mysql restart ###恢复故障
Shutting down MySQL. [确定]
Starting MySQL.. [确定]
# /opt/mysql/bin/mysql -uuser -ppwd-h192.168.1.144 -P2345
mysql> select * from backends;
+-------------+--------------------+-------+------+
| backend_ndx | address | state | type |
+-------------+--------------------+-------+------+
| 1 | 192.168.1.140:3306 | up | rw |
| 2 | 192.168.1.141:3306 | up | ro |
| 3 | 192.168.1.145:3306 | up | ro |
+-------------+--------------------+-------+------+ ####可以看到已经OK.
3 rows in set (0.00 sec)
7、连接自己主从数据库的命令
# /opt/mysql/bin/mysql-uroot -p123456
# /opt/mysql/init.d/mysql restart/stop/start
三、以下是架构的搭建
Mysql主从：一主三从
Atlas:2个节点做HA
Keepalived:提供VIP防止Atlas单点故障
1、安装keepalived
wget http://www.keepalived.org/software/keepalived-1.2.13.tar.gz
tar zxvf keepalived-1.2.13.tar.gz -C /opt/
cd /opt/keepalived-1.2.13
./configure --prefix=/usr/local/keeplived
make && makeinstall
2、新建一个配置文件，默认情况下keepalived启动时会去/etc/keepalived
# mkdir -p /etc/keepalived
# cp -r /usr/local/keeplived/etc/keepalived/keepalived.conf/etc/keepalived/
3、编辑配置文件
#Atlas1（1.146）上
# vim /etc/keepalived/keepalived.conf
! Configuration File for keepalived
global_defs {
notification_email {
837337164@qq.com
}
notification_email_from 837337164@qq.com
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id Atlas_ha
}
vrrp_instance Atlas_ha {
state master
interface eth0
virtual_router_id 51
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.1.254
}
}
virtual_server 192.168.1.254 80 {
delay_loop 6
lb_algo rr
lb_kind DR
nat_mask 255.255.255.0
persistence_timeout 50
protocol TCP
real_server 192.168.1.137 80 {
weight 1
notify_down /usr/local/mysql-proxy/bin/Atlas.sh
TCP_CHECK {
connect_timeout 10
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
real_server 192.168.1.138 80 {
weight 1
notify_down /usr/local/mysql-proxy/bin/Atlas.sh
TCP_CHECK {
connect_timeout 10
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
}
#Atlas2（1.144）与atlas1几乎一致，如下：
# vim /etc/keepalived/keepalived.conf
! Configuration File for keepalived
global_defs {
notification_email {
837337164@qq.com
}
notification_email_from 837337164@qq.com
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id Atlas_ha
}
vrrp_instance Atlas_ha {
state BACKUP
interface eth0
virtual_router_id 51
priority 50
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.1.254
}
}
virtual_server 192.168.1.254 80 {
delay_loop 6
lb_algo rr
lb_kind DR
nat_mask 255.255.255.0
persistence_timeout 50
protocol TCP
real_server 192.168.1.137 80 {
weight 1
notify_down /usr/local/mysql-proxy/bin/Atlas.sh
TCP_CHECK {
connect_timeout 10
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
real_server 192.168.1.138 80 {
weight 1
notify_down /usr/local/mysql-proxy/bin/Atlas.sh
TCP_CHECK {
connect_timeout 10
nb_get_retry 3
delay_before_retry 3
connect_port 80
}
}
}
4、创建notify_down脚本
# cat /usr/local/mysql-proxy/bin/Atlas.sh
#!/bin/sh
pkillkeepalived
# chmod +x/usr/local/mysql-proxy/bin/Atlas.sh
启动keepalived
# /usr/local/keeplived/sbin/keepalived -D
# ps aux | grep keepalived | grep -v grep
root 51510.00.139980 776 ? Ss 17:48 0:00 /usr/local/keeplived/sbin/keepalived -D
root 51520.10.4420842068 ? S 17:48 0:00 /usr/local/keeplived/sbin/keepalived -D
root 51530.20.2420841296 ? S 17:48 0:00 /usr/local/keeplived/sbin/keepalived -D
停止keepalived
# kill5151
4、查看keepalived日志，解决问题思路
tail -f/var/log/messages
四、在192.168.1.146（Atlas1）和192.168.1.144(Atlas2)上分别安装LVS
#yuminstall -yipvsadm
# ipvsadm -L -n
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP192.168.1.254:80 rr persistent 50
-> 192.168.1.137:80 Route 1 0 0
-> 192.168.1.138:80 Route 1 0 0
#ip addr list#用这个指令可以看到vip的192.168.1.254在那台Atlas上
1: lo:mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
3: eth0:mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:ec:ff:f2 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.146/24 brd 192.168.1.255 scope global eth0
inet 192.168.1.254/32 scope global eth0 ###虚拟ip
inet6 fe80::20c:29ff:feec:fff2/64 scope link
valid_lft forever preferred_lft forever
五、在192.168.1.137(web1)和192.168.1.138(web2)服务器里安装虚拟vip的ip脚本
1、安装脚本
# cat lvs-client.sh
. /etc/rc.d/init.d/functions
VIP=(
192.168.1.254
)
function start(){
for ((i=0;i/proc/sys/net/ipv4/conf/lo/arp_ignore
echo "2">/proc/sys/net/ipv4/conf/lo/arp_announce
echo "1">/proc/sys/net/ipv4/conf/all/arp_announce
echo "2">/proc/sys/net/ipv4/conf/all/arp_announce
}
functionstop(){
for ((i=0;i RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP192.168.1.254:80 rr persistent 50
-> 192.168.1.137:80 Route 1 0 1
3、测试，现在192.168.1.144Atlas2
# curl http://192.168.1.254
RS1
4、重启192.168.1.138的http
service httpdstart
在看192.168.1.146Atlas1
# ipvsadm -L -n
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP192.168.1.254:80 rr persistent 50
-> 192.168.1.137:80 Route 1 0 0
-> 192.168.1.138:80 Route 1 0 0
5、关闭192.168.1.146Atlas1上的keepalived
# ps aux | grep keepalived | grep -v grep
root 81730.00.139980 772 ? Ss 14:14 0:00 /usr/local/keeplived/sbin/keepalived -D
root 81740.00.4422082080 ? S 14:14 0:00 /usr/local/keeplived/sbin/keepalived -D
root 81750.00.2420841296 ? S 14:14 0:00 /usr/local/keeplived/sbin/keepalived -D
# kill 8173
在192.168.1.144Atlas2上面查看
# /usr/local/keeplived/sbin/keepalived -D
# ipvsadm -L -n
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP192.168.1.254:80 rr persistent 50
-> 192.168.1.137:80 Route 1 0 0
-> 192.168.1.138:80 Route 1 0 0
# ip addr list
1: lo:mtu 16436 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0:mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether 00:0c:29:bc:de:b4 brd ff:ff:ff:ff:ff:ff
inet 192.168.1.144/24 brd 192.168.1.255 scope global eth0
inet 192.168.1.254/32 scope global eth0 ###此时192.168.1.254VIP已经被Atlas2拿到了。
inet6 fe80::20c:29ff:febc:deb4/64 scope link
valid_lft forever preferred_lft forever
在192.168.1.146Atlas1上
#curl http://192.168.1.254
RS2 ###可以访问
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