ssh连接批量修改主机名报出以下提示: [root@bqh-nfs- ~]# vim modfilyhostname.sh [root@bqh-nfs- ~]# sh modfilyhostname.sh Address 192.168.43.117 maps to bogon, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT! Address 192.168.43.118 maps to bogon,…

使用root用户启动hadoop的时候报错: [root@node1 ~]# su - hadoop -c start-all.sh starting namenode, logging to /app/hadoop/bin/../logs/hadoop-hadoop-namenode-node1.out 192.168.1.153: starting datanode, logging to /app/hadoop/bin/../logs/hadoop-hadoop-datanode-node…

版权声明:本文为博主原创文章,遵循 CC 4.0 BY-SA 版权协议,转载请附上原文出处链接和本声明.本文链接:https://blog.csdn.net/weixin_37632381/article/details/84933091严重: create connection error java.sql.SQLException: null, message from server: "Host '192.168.209.1' is not allowed to connect to th…

Ansible基于playbook批量修改主机名 安装Ansible,相信这里也不用多说,大家都知道 说一下环境:这里的主机名是修改之后的,我先把其他两台的主机名改为别的 192.168.30.21    主机名jenkins      安装Ansible 192.168.30.22    主机名docker 192.168.30.23    主机名repository 1.这里需要安装Ansible需要用到阿里云的yum仓库 [root@jenkins]# wget -O /etc/yum.r…

原因是 防火墙没有开端口. telnet 测试 3306端口,报错 telnet: connect to address 192.168.120.32: No route to host 再次链接就可以了.…

[root@testdb11b ~]# /u01/app/oraInventory/orainstRoot.sh Changing permissions of /u01/app/oraInventory. Adding read,write permissions for group. Removing read,write,execute permissions for world. Changing groupname of /u01/app/oraInventory to oinstal…

Error, some other host already uses address 192.168.0.202错误解决方法 今天配置虚拟机网卡的时候遇到错误:Error, some other host already uses address 192.168.0.202 查了很多方法,比如:编辑 /etc/sysconfig/network-scripts/ifup-eth 后来发现局域网里面有其他机器使用了192.168.0.202 这个IP,最后把虚拟机IP改为一个局域网内没人使用的I…

Net Core通用主机的介绍: https://docs.microsoft.com/zh-cn/aspnet/core/fundamentals/host/generic-host?view=aspnetcore-2.1 参考官网教程编写代码,编译报错:错误         CS5001     程序不包含适合于入口点的静态 "Main" 方法 错误代码public static async Task Main(string[] args) 问题原因:async Task Main…

一.在ansible安装完毕后一般需要以SSH的方式连接到需要进行管理的目标主机,一开始遇到了如下问题: 192.168.15.4 | UNREACHABLE! => {    "changed": false,     "msg": "Failed to connect to the host via ssh: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).\…

执行命令如下: curl -XPOST http://192.168.6.16:9200/my_new_index/user/_bulk?pretty --data-binary @/cjf/es/elasticsearch-2.3.3/data/myjson.json 报错如下: { "error" : { "root_cause" : [ { "type" : "action_request_validation_exception…