Articles under the label of Linux

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HAProxy cannot bind socket问题分析

1 问题现象在一个新搭建的 OpenStack 环境中启动 HAproxy 后发现 HAProxy 服务启动报错：[ALERT] 045/145120 (10) : Starting proxy rabbitmq_management: cannot bind socket [172.10.10.15:15672] [ALERT] 045/145120 (10) : Starting pro...

  • hczhang
  • February 17, 2022
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    • CentOS安装指定版本软件

    1 方法查找软件版本yum list <software> --showduplicates | sort -r安装指定版本软件sudo yum -y install <software>-[VERSION]2 实践以安装指定版本 docker-ce 为例查找 docker-ce 版本yum list docker-ce --showduplicates | sort...

  • hczhang
  • June 18, 2019
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    • 操作系统关闭防火墙方法总结

    CentOS 7.*+查看防火墙状态systemctl status firewalld.service关闭防火墙并禁止开机自启systemctl stop firewalld.service systemctl disable firewalld.serviceCentOS 6.*查看防火墙状态service iptables status关闭防火墙并禁止开机自启service ipta...

  • hczhang
  • July 30, 2018
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