Programmer Think

Author: lu4nx @ know Chuangyu 404 active defense laboratory Author blog: CVE-2019-14287 (Linux sudo vulnerability) analysis Original link:https://paper.seebug.org/1057/   Recently sudo was exposed a vulnerability, unauthorized privileged users can bypass the restrictions to obtain privileges. For the official repair notice, please refer to: ...

ceph RBD Environmental Science 192.168.126.101 ceph01 192.168.126.102 ceph02 192.168.126.103 ceph03 192.168.126.104 ceph04 192.168.126.105 ceph-admin 192.168.48.11 ceph01 192.168.48.12 ceph02 192.168.48.13 ceph03 192.168.48.14 ceph04 192.168.48.15 ceph-admin 192.168.48.56 web Create RBD Create ...

Premise: Amazon cloud has been configured to start. The inbound policy of security group is as follows: The outbound strategy is as follows: After logging in to EC2, only EC2 user can log in by default, and then switch to root: sudo su Prompt for installing docker no package docker available using yum. yum install docker -y resolvent:Add CentOS ...

1. Configure yum source and install docker [root@docker ~]# cd /etc/yum.repos.d/ #Switch to yum source directory [root@docker yum.repos.d]# wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo #Download Ali's docker yum source library file [root@docker yum.repos.d]# cd [root@docker ~]# yum makecache #Establishing yum ...

Centos use 1. Shell Foundation 1.1 Shell type Bash (Bourne-Again Shell, default Linux shell, enhanced version of SH including centos ubuntu, sh soft chain to bash, GNU R&D) http://www.gnu.org/software/bash/manual/html_node/index.html ash (Almquist shell, Kenneth Almquist and 1980s, almost rep ...

When the cluster capacity or computing resources reach a certain limit, the cluster needs to be expanded, which can be divided into two main operations:1. Vertical expansion: adding disks to existing nodes will increase capacity and keep cluster computing performance unchanged;2. Horizontal expansion: adding new nodes, including disk, memory a ...

First issue of this article: https://www.cnblogs.com/somata/p/LinuxLDAPUserAuthentication.html I use the LDAP user management completed by CentOS, which may be different from most of the online tutorials, but if I write it out, it will certainly be useful, but there will be some files, forget to teach.The OPENLdap used here cooperates with the ...

Yum is more convenient than rpm. The biggest advantage of the yum tool is that it can download the required RPM packages online and install them automatically. If the RPM packages to be installed depend on each other, the yum tool will help us instal ...

I. Preparations 1. Preparing the CentOS 7 System Environment Because it was installed in silent mode, without using a graphical interface, I chose the smallest installed server version of entOS 7. After installation, only the command line interface is available. 2. Download Oracle 11g (1) Oracle's official website: http://www.oracle.com/t ...

1. Overview: In this tutorial, you will learn how to use Huawei Cloud Elastic Cloud Server (hereinafter referred to as ECS) to build the Wechat Public Number Processing Desk, write the corresponding Wechat Message Processing Logic Code in Python ...