Linux云计算学习笔记day32

克隆之前
CentOS 7 删除网卡UUID
CentOS 6 1个清空2个删除
1个清空

 /etc/udev/rules.d/70-persistent-net.rules 

2个删除删除网卡配置文件里面的UUID和HWADDR这两行

删除完HWADDR和UUID之后不要用setup编辑网卡。

cat >/etc/hosts<<EOF
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
172.16.1.5      lb01
172.16.1.6      lb02
172.16.1.7      web01
172.16.1.8      web02
172.16.1.31     nfs01
172.16.1.41     backup
172.16.1.51     db01 db01.etiantian.org
172.16.1.61     m01
EOF

cp /etc/hosts  /tmp/
rsync /etc/hosts /tmp/
rsync /etc/  /tmp/
cp /etc/ /tmp/
cp -r /etc/ /tmp/
\rm  /tmp/etc/ -fr 
ll /tmp/
#cp -r /etc/ /tmp/
rsync  -a  /etc/ /tmp/


ll /tmp/
ll /mnt/
rsync  -avz  --delete    /tmp/   /mnt/
ll /mnt/
\rm /tmp/etc/ -fr 
ll  /tmp/
rsync  -avz  --delete    /tmp/   /mnt/
ll /mnt/ 
#rsync  -avz  --delete    /tmp/   /mnt/


#推送 本地 /etc/hostname  到 nfs01 的 /tmp下面 
[root@backup ~]# scp   /etc/hostname  172.16.1.31:/tmp
The authenticity of host '172.16.1.31 (172.16.1.31)' can't be established.
ECDSA key fingerprint is SHA256:FHH2JDQ2KJILsBGnTrUMEZLfNwYUDA5iW7O9rN6K3UE.
ECDSA key fingerprint is MD5:7c:31:29:22:de:ea:52:7b:b0:ea:27:f1:ed:f9:de:d5.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '172.16.1.31' (ECDSA) to the list of known hosts.
root@172.16.1.31's password: 
Permission denied, please try again.
root@172.16.1.31's password: 
hostname                                                        


[root@backup ~]# #把 /etc目录 推送到 nfs01的 /tmp下面 
[root@backup ~]# 
[root@backup ~]# scp /etc/  172.16.1.31:/tmp
root@172.16.1.31's password: 
/etc: not a regular file
[root@backup ~]# scp -r  /etc/  172.16.1.31:/tmp
root@172.16.1.31's password: 



#把/etc目录推到 nfs01的/tmp下面 
rsync -av  /etc  172.16.1.31:/tmp/

#把nfs01的/etc/hostname 拉到本地/tmp下面 
rsync  -avz   172.16.1.31:/etc/hostname    /tmp/

[root@backup ~]# rsync  -avz   172.16.1.31:/etc/hostname    /tmp/
root@172.16.1.31's password: 
receiving incremental file list
hostname

sent 43 bytes  received 96 bytes  55.60 bytes/sec
total size is 6  speedup is 0.04
[root@backup ~]# cat /tmp/hostname 
nfs01


[root@backup ~]# rsync -av /etc 172.16.1.31:/tmp
root@172.16.1.31's password: 
bash: rsync: command not found
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: remote command not found (code 127) at io.c(226) [sender=3.1.2]

visio 画出综合架构图片
https://edu.51cto.com/course/6334.html

[root@backup ~]# rsync -avz /etc 176.16.1.31:/tmp
ssh: connect to host 176.16.1.31 port 22: Connection refused
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: unexplained error (code 255) at io.c(226) [sender=3.1.2]