Linux

BIOS Post MBR boot Hard Disk 0 Cylinder 0 Track 1 sector of the top 446byte.Grub boot Menu cat/ect/grub.conf load kernel kernel start init process[Email protected] tmp]# Ps-ef | grep InitRoot 1 0 0 Nov10? 00:00:00/sbin/initRoot 5301 5143 0 0

Vim Editor:To start the Vim editor, simply type vim and the file you wish to edit: Vim mongo.shIf the file exists, the entire content is displayed to the buffer to be edited, and if the file does not exist, a new buffer is opened for editing.The

Linux Standalone (not included with Apache) configuration Subversion method:installation process:1. Software download. I downloaded subversion-1.6.5.tar.gz and subversion-deps-1.6.5.tar.gz, the former is the source file for svn1.6.5, which is the

Su-Used to initialize environment variables $PATH $HOME, etc.sudo su to root requires input of root password is not securevisudo Edit/etc/sudoers config file no command required to install Yum install-y sudoformat: User host= (as_user) commandsFor

The Linux kernel consists of 5 major subsystemsare: Process scheduling (SCHED), interprocess communication (IPC), virtual file system (VFS), memory Management (MM), network communication (NET) Relationship between process scheduling and

Sort-sort lines of text filesParameters:-F ignores case-B ignores the front-most whitespace section-M sort by the name of the month-N sort with a pure number (by default, sort by text type)-R Reverse Sort-U is uniq, and in the same data, only one

Help commands (various command differences)   Most commonly used help commands  help--helphelp CD view built-in commands using Infoman help CD to view the use of built-in commands   ways to get help:  man Both  --help  --help and help  can be used

CDROM is loaded under/dev/cdrom.Create a folder within the permission range when mounting. such as Mkdir/home/dang/cdtmpMount Dev/cdrom/home/dang/cdtmp is then executed to complete the mount.If you feel that the directory is not good, to cancel the

Linux has many distributions, so which one do I study? The old boy teacher analyzed for us: Linux Desktop, Ubuntu preferred Server-side, preferred Rhel or CentOS, both of which are preferred for CentOS, because it is free, no copyright

Under Windows or Mac OS X, including iOS and Android on your phone, application development is becoming more and more complex. Click the Next button, the cursor to half a day, the program behind a bunch of things you do not know. Not only does it

redirect Commands in Linux> is directed output to a file.If the file does not exist, create the file, and if the file exists, empty it; usually we back up the cleanup log file, use it: first back up the log, and then ' > ', the log file is emptied

1, VI of the basic conceptBasically, vi can be divided into three states, namely command mode, insert mode (and bottom line mode), and the function of each mode is as follows:1) command-line modeControls the movement of the screen cursor, the

Ubuntu vim usageThe vi editor is a standard editor for all Unix and Linux systems. It is not inferior to any of the latest text editors. Here we just briefly introduce its usage and a few instructions. The vi editor is identical for any version of

About the speed limit module of nginxNginx uses ngx_http_limit_req_module and ngx_http_limit_conn_module to restrict requests to resources. For CC attacks (Challenge Collapsar) or DDOS (Distributed Denial of Service) some use 1. HttpLimitReqModule

Compatible with commands for disabling all processes with specified names on various Linux platformsKill-9 'ps-ef | grep processname | awk' {print $2 }'' The following platforms are supported:   Linux operating system platforms for various

Centos6.7 compile and install Apache PHP##### Apache compilation and installation #### [root@localhost ~]# yum install gcc gcc-c++ make wget[root@localhost ~]# yum install zlib-devel openssl-devel [root@localhost ~]# yum install -y perl perl-devel1)

Note the following when learning Linux for the first time: 1. Linux is case sensitive 2. All content in Linux is saved as files, including hardware Hard Disk File/dev/sd [a-p] CD files/dev/sr0 3. Linux does not rely on extensions to differentiate

Set up centOS7.0 VPN and centos7.0vpn Before CentOS7.0, the iptables firewall was used, and firewalld was used by default after 7.0. The VPN settings were also different:1. check if pptpd: modprobe ppp-compress-18 is supported & echo yes returns yes

Centos6.7 installation of zabbix + apache + mysql tutorial ### Install the basic package ### [root @ ca0gu0 ~] # Yum install httpd php-devel mysql-server mysql-devel [root @ ca0gu0 ~] # Yum install libxml2-devel unixODBC-devel net-snmp-devel libssh2-

Seven reasons for Nginx Nginx ("engine x") is a high-performance HTTP and reverse proxy server. It is also a lightweight Web server/reverse proxy server and email (IMAP/POP3) proxy server.1. Server Load balancer implements scalable Traffic