Programmer Group

Authority management: ls -l rwxrwxrwx: The left three: defining user(owner) permissions The middle three: define the rights of group; The right three: the right to define other Process security context: Application model of process access rights to files: Whether the ownership of ...

Before I introduced the way to compile the intranet penetration software ngrok server and client under CentOS, today I introduce a better intranet penetration software than ngrok, Frp.   frp (fast reverse proxy) is a high performance reverse daili application that can be used for intranet penetration. It supports tcp, udp, ...

1. Basic environmental preparation Operating System: CentOS 7.4 Kernel Version 3.10.0-693, which can be viewed using uname-a commandOracle JDK 1.8_171 (Oracle JDK is recommended) can be viewed using the java-version commandIf you have a firewall policy, please open port 3306, or close the firewall policy.Check to see if MySQL comes with you. C ...

Reminder This blog post mainly records how to install minikube using CentOS system in the local environment. It fills in the hole for the problem of mirror download failure in the process of installation. It mainly uses kubernete version 1.12.1. For other different versions, the method is the same. 1. Download the Deployment Installation Packa ...

The pxe installation server written before forwarding: http://www.attacker.club/article/125 Service list dhcp: Assign IP addresses, specify startup files and tftp service addresses tftp-server: Transfer boot file http: Publish the iso image of CD-ROM pxelinux.0: The startup file of the system pxe is obtained by installing the syslinux packa ...

Abstract: Elastic search, which eats a lot of memory. It's normal to use the default settings as before, but as long as you modify the contents of elasticsearch.yml, errors may persist. So, here's someone who told you that you really need patience... Ha-ha, I am still too weak, just started to take a lot of detours. Let's first configure e ...

Principle: Choose appropriate tools based on monitoring content and scenarios Tool list Docker CLI The docker container stats command displays the real-time usage of container resources. Start a container: docker container run - name db -d arungupta/couchbase Check the status of the container using docker container stats db. The fol ...

pidof command The pidof command is used to query the PID value of a specified service process in the form of "pidof [parameter] [service name]. The process number value (PID) of each process is unique, so different processes can be distinguished by PID. For example, The following commands can be used to query the PID of t ...

free cpu information query reference information free [root@VM_0_16_centos ~]# free -m total used free shared buffers cached Mem: 996 824 172 10 32 501 -/+ buffers/cache: 289 706 Swap: 0 0 0 [root@VM_0 ...

A few days ago, my Aliyun server was violently cracked, very uncomfortable, so I made this key certificate password-free login. First check whether sshd is installed in Aliyun's ECS server Get the secret key: If you don't see the previous git upload github's article. Type: [root@iz2ze8w7169ei61c5c1il5z ~]# vi /etc/ssh/sshd_config Mod ...