RHCE 第二次作业
配置ssh实现A，B主机互相免密登录
客户端
1.制作公私钥对
[root@shutiao ~]# ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa
Your public key has been saved in /root/.ssh/id_rsa.pub
The key fingerprint is:
SHA256:qN0Q70WZKeyxtCAd4zZIaNSfyJfcftvImlppMbmRza4 root@shutiao
The key's randomart image is:
+---[RSA 3072]----+
| ..o. o |
| o..+ + + |
| . .o+B+= = |
| oo*O.@ |
| .o.S + |
| o +.O. |
| . . Bo.+ |
| o o+ . |
| ..E. |
+----[SHA256]-----+
2.将公钥上传到服务器端
ssh-copy-id root@192.168.153.166
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host '192.168.153.166 (192.168.153.166)' can't be established.
ED25519 key fingerprint is SHA256:nUpp98jf5J/XswFlnvBfGMusDQ23L0R7Jf0GcQkgxBc.
This host key is known by the following other names/addresses:~/.ssh/known_hosts:1: www.shutiao.com~/.ssh/known_hosts:4: hehe.com
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@192.168.153.166's password:Number of key(s) added: 1Now try logging into the machine, with: "ssh 'root@192.168.153.166'"
and check to make sure that only the key(s) you wanted were added.[root@shutiao ~]# ssh root@192.168.153.166
Activate the web console with: systemctl enable --now cockpit.socketRegister this system with Red Hat Insights: rhc connectExample:
# rhc connect --activation-key <key> --organization <org>The rhc client and Red Hat Insights will enable analytics and additional
management capabilities on your system.
View your connected systems at https://console.redhat.com/insightsYou can learn more about how to register your system
using rhc at https://red.ht/registration
3.客户端测试
[root@shutiao ~]# ssh root@192.168.153.131[root@server1 ~]#服务端
1.制作公私钥对
[root@server1 ~]# ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): ^[[A
Enter passphrase (empty for no passphrase):
Enter same passphrase again: .pub
The key fingerprint is:n saved in in
SHA256:XX78x2u8mQXICKTrU6HPC/J1tQJyzddOO/5e8wd4awo root@server1
The key's randomart image is:
+---[RSA 3072]----+
| . |
| o |
| . o . |
| o * = + |
| + S = *.* |
| . * . o.=o= |
| . + + E ..=+*|
| o + o o .o+@|
| . . .ooB*|
+----[SHA256]-----+2.将公钥上传到服务器端
[root@server1 ~]# ssh-copy-id root@192.168.153.1313.服务端测试
[root@server1 ~]# ssh root@192.168.153.131
Activate the web console with: systemctl enable --now cockpit.socketRegister this system with Red Hat Insights: rhc connectExample:
# rhc connect --activation-key <key> --organization <org>The rhc client and Red Hat Insights will enable analytics and additional
management capabilities on your system.
View your connected systems at https://console.redhat.com/insightsYou can learn more about how to register your system
using rhc at https://red.ht/registration
Last login: Mon May 5 14:16:24 2025 from 192.168.153.1
[root@shutiao ~]#配置nginx服务，通过多ip区分多网站
1.准备工作
[root@server2 ~]# systemctl stop firewalld
[root@server2 ~]# setenforce 0
[root@server2 ~]# yum install nginx
2.配置不同IP
[root@server2 ~]# nmtui
3.配置文件
[root@server2 ~]# vim /etc/nginx/conf.d/ip.conf server{listen 192.168.153.134;root /www/ip/134;}
server{listen 192.168.153.196;root /www/ip/196;}
[root@server2 ~]# mkdir /www/ip/{134,196} -pv
mkdir: created directory '/www/ip'
mkdir: created directory '/www/ip/134'
mkdir: created directory '/www/ip/196'
[root@server2 ~]# echo this is 134 > /www/ip/134/index.html
[root@server2 ~]# echo this is 196 > /www/ip/196/index.html
[root@server2 ~]# systemctl restart nginx 4.测试
[root@server2 ~]# curl 192.168.153.134
this is 134
[root@server2 ~]# curl 192.168.153.196
this is 196