Ordinary files (fbind -): files that do not belong to the other six categories are all ordinary files. This kind of files are very miscellaneous, and everything has links (l): soft links are divided into soft links and hard links, which are similar to shortcuts in windows systems, and hard links are similar to copied new file pipeline files (p
Practice environment: operating system: CentOS Linux release 7.5.1804 (Core) Virtual tool: VMware Application Container engine: Docker version 1.13.1. The mirror container is actually the most
Let's first understand a few concepts: PV (physical volume): physical volumes are at the bottom of the logical volume management system and can be partitioned for the entire physical hard disk or the actual physical hard disk. Command: pvdisplayVG (volume group): volume groups are established on physical volumes
It is sometimes difficult to pull an image from DockerHub in China, so you can configure the image accelerator. Docker officials and many domestic cloud service providers provide domestic accelerator services, for example: China Image Repository provided by Docker: https://regist
Question: 1. After updating the Esxi patch pack with CLI, the Esxi version number is normal after initially rebooting the Esxi host, but after rebooting again, the Esxi version will revert to the previous version. two。 Change the relevant configuration of Esxi, and the Esxi configuration will be restarted.
Harbor:Harbor is an open source solution for building an enterprise-class private docker image repository. It is a more advanced encapsulation of Docker Registry. It not only provides a friendly Web UI interface, role and user rights management, user operation audit and other functions.
1. Develop your own chare package [root@master ~] # helm create mychare// create a chare package called mychare [root@master ~] # tree-C mych
Mailbox MBX Database High availability Group (DAG) is the basic component of high availability and site response built into Exchange server. DAG is a group of mailbox servers that can contain up to 16 mailbox servers that host a set of databases that can provide audio single servers.
1. Docker supported CentOS 64-bit version 1) CentOS 72) CentOS 83) later version 2, uninstall the old version [root@localhost ~] # yum remove docker docker
1. Nginx reverse proxy location / index_test.php {proxy_set_header X-Real-IP $remote_addr;proxy_set_header Host
After the Ubuntu virtual machine copied by clone method starts, although the network information such as IP does not conflict with other virtual machines, it is unable to ping other virtual machines. Created virtual machine information: copied virtual machine information: by observing the network configuration file, two virtual machines were found.
1) first of all, let's take a look at how to zip a directory. Windows:1 zip-r backup.zip "c:\ yourfolder" Linux: (package your own home directory) 1 tar-czvf
Background: as an operation and maintenance engineer, troubleshooting is a necessary skill; every time you make a mistake, the order is forgotten; sort out the methodology. Linux network common troubleshooting tools: tool use traceroute port availability detection mtr network test tool case 1: the company adopts public cloud plus I
Install salt1.1 install the specified version of salt to solve the upstream error rpm-e-nodeps python2-pycryptodomexyum install python-cr of pycryptodome
Introduction to Helm Helm is the preferred package management tool for Kubernetes. In K8S, an application may have more than one YAML manifest file. When there are many applications, these manifest files will appear to be very messy. Helm can solve this problem very well, Helm charts.
1. Environment 2, error message 3, reason 4, solution 1, Environment Red Hat Enterprise Linux Server release 7.2 (Maipo) java version "1.7.080" Ja
Embedded development memory management is a very important part, how to use vector efficiently, not only can quickly expand the storage space, but also maximize the use of storage space, and avoid the out-of-bounds problem of C array solution vector provides multiple constructors 1 vector vec;vec.
Hsiao Sheng blog: http://xsboke.blog.51cto.com-Thank you for your reference, if you have any questions, welcome to exchange directory: the component environment used this time, WEB configuration Elastic
System call system call is a set of "special interfaces" provided by the operating system to users. System calls do not deal directly with programmers or system administrators, but submit requests to the kernel through soft interrupts to obtain the service entry (system call table) of kernel functions. The system call allows the system to use
[user unit] [data recovery failure description] SUN optical fiber storage system in a branch of China Unicom, the central storage is a RAID6 composed of six 300G hard drives, divided into several LUN,MAP to servers of different services, and the server runs SUN SOLARIS operating system.
