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CCNP Part 16 vxlan (II) + port mirroring This article is mainly about the practical demonstration of vxlan VXLAN demo There should be no such image in normal ensp To use this CE12800 I have here, which can be provided for you to use Link: https://pan.baidu.com/s/1nqGo8a7mmWpthu-CuBC80Q?pwd=cjnb Extraction code: cjnb This thing needs to be m ...

nginx problem handling 1. Cache files on the client If the user repeatedly accesses the same file of the server, it can be cached to the client to avoid the server repeatedly transmitting the same file and save time Open the configuration file and add a location under the default location location ~* \.(jpg|html|txt|mp3) ${/ / when it i ...

1. Write in front Previously, we have introduced some common knowledge of C language and standard input and output. In this blog, we will introduce the call of UNIX system interface. UNIX operating system provides services through a series of system calls. These system calls are actually functions in the operating system, which can be called b ...

1, Account security 1. User information file / etc/passwd # Format: account:password:UID:GID:GECOS:directory:shell # User name: Password: user ID: group ID: user description: Home Directory: shell after login root:x:0:0:root:/root:/bin/bash # View logged in users: cat /etc/passwd | grep /bin/bash # View users with UID=0 awk -F: '$3==0{print ...

Mysql log management 1, MySQL log management The default log storage location of MySQL is / usr/local/mysql/data There are two ways to open logs: through configuration files or through commands The log opened through command modification is temporary and will be closed after the service is shut down or restarted MySQL common log types and s ...

Enables EventLoop to handle timer events Timing function Used to make the program wait for a period of time or schedule a scheduled task: sleep alarm usleep nanosleep clock_nanosleep getitimer / setitimer timer_create / timer_settime / timer_gettime / timer_delete timerfd_create / timerfd_gettime / timerfd_settime chooses this method. ...

Oracle's machine was blown up, so that the little partners could not open the free machine, so they wrote a script and robbed it on the server. When the resources came out, they could basically open it. This script uses Terraform to call API to execute tasks. The following is a brief description. Oracle ARM has been used by everyone for a wh ...

preface The ECS that Alibaba cloud bought for 95 yuan is about to expire. It needs more than 1000 to renew. I thought there was nothing important on the server, so I took advantage of Tencent cloud discount and spent 288 to buy a three-year CVM. CVM is a cloud virtual machine. Let's call it a server for the time being. 1 core 2G, it seems tha ...

1, PXE 1. Principle and concept: The pre boot execution environment (PXE), also known as the pre execution environment, provides a mechanism for starting a computer using a Network Interface. This mechanism allows the computer to start without relying on the local data storage device (hard disk) or the locally installed operating system. Ser ...

Use TCP to transmit data, write the program of client and server, and realize the real-time communication between the two programs. In each program, the function of sending and receiving data in real time is realized. io interface of client Server side io interface io demo The program takes ...