OS + RedHat 6.3 x64 / sshd X11 / web console
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问题1:Redhat 6.3 WARNING! The remote SSH server rejected X11 forwarding request.
Connecting to 10.27.214.99:22...
Connection established.
To escape to local shell, press 'Ctrl+Alt+]'.
WARNING! The remote SSH server rejected X11 forwarding request.
Last login: Wed Mar 20 14:53:36 from 10.49.7.30
[root@sctssitapp06 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.3 (Santiago)
解决1
[root@sctssitapp06 ~]# vim /etc/ssh/sshd_config
修改内容:X11Forwarding yes
修改内容:UseLogin no
重启ssh服务:[root@sctssitapp06 ~]# /etc/init.d/sshd restart
重新登陆:不再出现WARNING!
Connecting to 10.27.214.99:22... Connection established. To escape to local shell, press 'Ctrl+Alt+]'. Last login: Wed Jul 10 23:03:12 2019 from 10.49.2.219 /usr/bin/xauth: creating new authority file /root/.Xauthority [root@sctssitapp06 ~]#
远程打开浏览器成功
[root@sctssitapp06 ~]# firefox
问题2:Java classloader在两个文件系统Redhat 6.3 和Cetnos 7.3 下针对class的加载顺序不一致
解决2:如果打包中使用的都是相同的版本,就不会有什么问题
解决2:升级为CentOS 7.3 64位 ,调整代码classload
CentOS7修改SSH端口
https://www.cnblogs.com/heqiuyong/p/11072829.html
一、修改ssh配置文件sshd_config
[root@bogon ~]# vi /etc/ssh/sshd_config
#Port 22
Port 2020
二、防火墙放行
[root@bogon ~]# firewall-cmd --zone=public --add-port=2020/tcp --permanent
[root@bogon ~]# firewall-cmd --reload
三、向SELinux中添加修改的SSH端口
先安装SELinux的管理工具 semanage (如果已经安装了就直接到下一步) :
[root@bogon ~]# yum provides semanage
安装运行semanage所需依赖工具包 policycoreutils-python:
[root@bogon ~]# yum -y install policycoreutils-python
查询当前 ssh 服务端口:
[root@bogon ~]# semanage port -l | grep ssh
向 SELinux 中添加 ssh 端口:
[root@bogon ~]# semanage port -a -t ssh_port_t -p tcp 2020
重启 ssh 服务:
[root@bogon ~]# systemctl restart sshd.service
测试成功后,把22端口注释掉即可
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