Linux

In Linux, there are three ways to pass parameters to kernel to control their behavior: Each configuration option at the time of the 1.build kernel. 2. When the kernel is started, parameters can be passed to kernel when the kernel is called by grub

Delete User# Userdel ABCThe delete operation deletes the user but retains the user's home folder and Mail folder. And when user ABC is logged in, the delete operation will fail, as follows:# Userdel ABCUserdel:user ABC is currently logged inIf you

Linux Split commandFunction Description: Cut the file.Syntax: Split [--help][--version][-][-b ][-c ][-l ][files to be cut [output file name]Additional note: Split can cut the file into smaller files, with a preset of 1000 lines cut into a small file.

Applicable system: Linux (Redhat, Centos,debian,ubuntu)* The Linux cloud Server data disk is not partitioned and formatted, and can be partitioned and formatted according to the following steps.The following operation will divide the data disk into

An executable file in the 1.Linux system is rooted and setid, and when an ordinary user, Mike, runs the program, the effective and actual users of the process are ____? A Root Mike B Root Rooy C Mike Root D Mike Mike E

The devices we will be accessing are attached to this directory, so we can access the files./optMost third-party software is installed to this location by default, such as Adobe Reader,google-earth. Not every systemwill create this directory./procIt

12th-Regular Expressionsgrep [-acinv] ' search string ' filename where-a means that the binary file is searched as a text file, and the-C calculation number,-I ignores case,-n outputs line numbers, and-V reverses the selection, which displays rows

First step: Enter the Environment profile directory #cd/etcStep two: Open config file # vi profile input I enter edit mode step three: Configure the path java_home= "/usr/java/jdk1.6.0_45" path= $JAVA _home/bin: $PATHCLASSPATH =.:$

1. Installation PreparationYum install-y Cobbler tftp dhcp httpd cman pykickstart debmirroryum install-y Ed Patch Perl perl-compress-zlib Perl-dige ST-SHA1 perl-lockfile-simple Perl-libwww-perlyum install-y syslinux2. Start httpd and Cobbler[[Email

Experimental requirements: Building a DHCP server on a Linux systemExperimental Steps :The first step: Set DHCP Server's IP Address and Gateways650) this.width=650; "style=" Float:none; "title=" 01.png "src="

View the maximum number of handles Ulimit-nSets the maximum number of handles Ulimit-n 5000Query process number PS aux|grep TomcatQuery the corresponding handle number According to the process number Lsof | Wc-l/usr/sbin/lsof-n|awk ' {print $} '

node : pg_data_ttypedefstructpglist_data {zone_t node_zones[max_nr_zones]; zonelist_t Node_zonelists[nr_gfpindex]; structPage *Node_mem_map; unsignedLong*Valid_addr_bitmap; structBootmem_data *bdata; unsignedLongnode_start_paddr; unsignedLongNODE_

GrepGrep-5 "What to find" Club.log #查找的文件名为club. LogTailtail-100f Club.log #查找文件的最新100行tail-100f club.log |grep ' info ' #查看最新100行有关键字 "info" lineFreeFree–m #查看内存, Unit mbFree–g # View content, GB per unitdf-h # Viewing disk usagefdisk–l # View

Swap partition ManagementFirst, view the current swap partition[Email protected] ~]# free-mTotal used free shared buffers Cachedmem:1841 519 1322 16 0 213-/+ buffers/cache:304 1536swap:0 0 0[Email protected] ~]# swapon-sSecond, increase the swap

Install Chrome in yum under CentOS Install Chrome in CentOS6.x. First, create the google-chrome.repo file in the/etc/yum. repos. d directory, which writes the following content:[Plain] view plaincopy [Google-chrome] Name = google-chrome Baseurl =

How to Upgrade openssh to 6.7p1 in CentOS 6.4 I. Environment Description 1) Operating System: CentOS 6.4 64-bit 2) Openssl version: 1.0.1e-15. el6. Since openssh_6.7p1 is upgraded, the OpenSSL version must be 0.9.8f or later, so you do not need to

Install VNCserver in yum in CentOSVNC is short for Virtual Network Computing and is a remote control software. It supports remote graphical control across operating systems. In daily work, servers often have data centers, and it is impossible to run

Install vnc in linux Whether the VNC service has been installed and check the installed VNC version: > Rpm-q vnc-server If not, you can download the vnc-server-4.1.2-14.el5_6.6.x86_64.rpm and install: (1) When the network is not connected: >

Add Nic to centos In Centos 6, the default kudzu identifies that the hardware service does not exist. Basically, all hardware management is managed by Udev... What is udev? Check my other articles. If you add a new hardware, such as the NIC, in

CentOS6.5 install the dhcp serverCentOS6.5-dhcp Server Installation Run the following command: Setting: SELINUX Set SELinux to permissive mode or disable it; 1. to modify the configuration file, restart the machine: Modify the/etc/selinux/config