Linux

The LS command is the most commonly used command under Linux. The LS command is the abbreviation for list. LS is used to print out the list of current directories if LS specifies a different directory then the list of files and folders in the

Bash how to deal with the problem of security vulnerabilityOne: Vulnerability descriptionThe vulnerability stems from the special environment variables created before the bash shell that you invoke, which can contain code and be executed by bash.II:

The ping-based ICMP backdoor that was inadvertently seen while searching. So to the author's GitHub to see, incredibly is engraved, in order to level, can only endure to see, the student dog hurt. Fortunately it's easier to understand, as the

System callsis a soft interrupt, API function, let the upper application fall into the kernelProcess ManagementProcess scheduling, scheduling algorithm, process three-stateProcess is the minimum unit fork for CPU scheduling resourcesVFS Virtual File

1. Knowledge points in this chapter Kernel and debug-related options Config_debug_kernel Config_debug_slab Config_debug_pagealloc Config_debug_spinlock Config_debug_spinlock_sleep Config_init_debug

First, installationRun as root user: Yum install WiresharkSecond, the operationType the command in the terminal:#wiresharkBash:wireshark:command not found#whereis

Today,LinuxThe operating system is the most widely used basic software in the world and has a universalLinuxthe Level Certification "certificate" is extremely important for employment. That is to say, in China to take this "certificate", to foreign

Standard input, output, and errorWhen we execute commands in the shell, each process is associated with three open files and uses file descriptors to refer to the files. Because the file descriptor is not easy to remember, the shell also gives the

SFTP is an interactive file transfer program. It is similar to FTP, but it is encrypted and has higher security than FTP. Below is a brief introduction of how to connect the host remotely, file upload and download, and some related operations.For

/etc/profile: This file sets the environment information for each user of the system, and the file is executed when the user logs on for the first time.and collect the shell settings from the configuration file of the/ETC/PROFILE.D

1. Environmental descriptionHost host operating system: Windows 7Virtual machine software: VMware WorkstationVirtual operating system: Linux 6.3 (File system EXT4)2. Error phenomena[Email protected] ~]# Mount/dev/cdrom/mnt/cdrom

the author uses Linux for centos5.3. The ad domain is WIN2K3 SP2. Domain is: rainbird.netWin2k3:Name:ad1ip:192.168.1.241dns:192.168.1.241Centos5.3:Name:filesrvip:192.168.1.246dns:192.168.1.241Ok,let ' s go!1.samba Server Software

Monitoring Linux hosts:1. Install the development KitYum-y Groupinstall "Development Tools"Yum–y installntpdate2, synchronization of client time, to prevent inconsistencies with the server, resulting in the detection of unavailable monitoring

Mounting the optical drive on a linux Virtual Machine reports "mount: you must specify the filesystem type" error handling, specifyfilesystem1. Environment Description Host OS: Windows 7 Virtual Machine Software: VMware Workstation Virtual Operating

View hardware information in linux and hardware in linuxDmidecode | grep Name is used to view various hardware information of a machine, such as cpu, memory, and network card.Lshw-short | egrep 'cpu | 4GiB DIMM | eth'Lshw-short | grep '4gib DIMM '|

Linux basic command date command, linuxdate command 1. Time Command: date The parameter passed to the date command applies to '+' (plus sign). In the parameter passed % Y indicates year % M indicates month % D Indicates day % H indicates the

Linux Tutorial: how to find and remove the old PPA repository on Ubuntu Problem: I tried to synchronize the package index file again by running the apt-get update command, but the error "404 cannot be found" occurred, it seems that I cannot obtain

Install and run Wireshark in Linux I. InstallationRun the command as root: yum install wiresharkIi. RunningEnter the command in the terminal:# WiresharkBash: wireshark: command not found# Whereis

Centos7 forgot password reset root Password (Unlike the previous, when the root password is forgotten and GRUB2 is used as the starter, the root password cannot be reset in single-user mode. The following describes how to reset the root password of

Explanation of Heartbeat v1 and NFS file sharing High Availability Basics I. Definition of high-availability clusters High Availability Cluster (HACluster) is a group of computers that provide users with a set of network resources as a whole. These