标签：xshell的简单应用、
Xshell是Windows下一款功能非常强大的安全终端模拟软件，支持Telnet、Rlogin、SSH、SFTP、Serial 等协议，可以非常方便的对linux主机进行远程管理。
1、OpenSSH更改默认端口
(1)、主配置文件：/etc/ssh/sshd_config
[root@www ~]# vim /etc/ssh/sshd_config
port 22 # 改成2222
(2)、重新启动服务
systemctl restart sshd.service
(3)、查看端口
[root@abc ~]# ss -tnl State Recv-Q Send-Q Local Address:Port Peer Address:Port LISTEN 0 128 *:2222 *:* LISTEN 0 128 :::2222 :::*
(4)、登录测试
Connecting to 172.16.38.3:2222... Connection established. To escape to local shell, press ‘Ctrl+Alt+]‘. WARNING! The remote SSH server rejected X11 forwarding request. Last login: Thu Jan 21 21:37:57 2016 from 172.16.38.1 [root@abc ~]#
(5)、在已经登陆的其他终端直接登录到172.16.38.3
[root@lgq ~]# ssh -p 2222 172.16.38.3 root@172.16.38.3‘s password: Last login: Thu Jan 21 21:57:19 2016 from 172.16.38.3 [root@abc ~]#
2、scp复制（两种）
本地主机为172.16.38.3 远程主机为172.16.38.4
(1)、PULL-------从远程主机上获取资源，前提远程主机的资源可读
[root@abc ~]# scp -r root@172.16.38.4:/var/www/* /root/ root@172.16.38.4‘s password: index.html 100% 72 0.1KB/s 00:00 index.php 100% 21 0.0KB/s 00:00 configure.sh 100% 49 0.1KB/s 00:00 [root@abc ~]# ll total 4 -rw-------. 1 root root 1084 Jan 20 04:22 anaconda-ks.cfg drwxr-xr-x 2 root root 6 Jan 21 22:05 cgi-bin #复制过来的 drwxr-xr-x 3 root root 52 Jan 21 22:05 html #复制过来的
(2)、PUSH-------从本地主机复制给远程主机，前提远程主机的目录可写
[root@abc ~]# scp anaconda-ks.cfg root@172.16.38.4:/tmp root@172.16.38.4‘s password: anaconda-ks.cfg 100% 1084 1.1KB/s 00:00 在172.16.38.4远程主机的/tmp目录查看 [root@lgq tmp]# ls anaconda-ks.cfg
3、基于密钥认证的实现
a、在xshell工具生成一对密码： 
4、要登录的Linux主机中配置：
配置文件：/etc/ssh/sshd_config
# The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2 # but this is overridden so installations will only check .ssh/authorized_keys AuthorizedKeysFile .ssh/authorized_keys
[root@lgq ~]# chmod 700 .ssh [root@lgq ~]# cd .ssh [root@lgq .ssh]# ls known_hosts [root@lgq .ssh]# vim authorized_keys
[root@lgq .ssh]# ll total 8 -rw-r--r--. 1 root root 381 Jan 21 22:55 authorized_keys -rw-r--r--. 1 root root 180 Jan 20 21:28 known_hosts [root@lgq .ssh]# chmod 600 authorized_keys [root@lgq .ssh]# ll total 8 -rw-------. 1 root root 381 Jan 21 22:55 authorized_keys -rw-r--r--. 1 root root 180 Jan 20 21:28 known_hosts
登录成功
Connecting to 172.16.38.4:22... Connection established. To escape to local shell, press ‘Ctrl+Alt+]‘. WARNING! The remote SSH server rejected X11 forwarding request. Last login: Thu Jan 21 23:07:09 2016 from 172.16.38.1 [root@lgq ~]#
标签：xshell的简单应用、
原文地址：http://liguoqing.blog.51cto.com/327222/1737496
